o(6)-benzylguanine has been researched along with guanine in 316 studies
Timeframe | Studies, this research(%) | All Research% |
---|---|---|
pre-1990 | 0 (0.00) | 18.7374 |
1990's | 124 (39.24) | 18.2507 |
2000's | 134 (42.41) | 29.6817 |
2010's | 55 (17.41) | 24.3611 |
2020's | 3 (0.95) | 2.80 |
Authors | Studies |
---|---|
Bigner, DD; Dolan, ME; Felker, GM; Friedman, HS; Moschel, RC; Pegg, AE; Rich, J; Schold, SC | 1 |
Berger, MS; Bobola, MS; Ewers, TG; Muramoto, M; Silber, JR | 1 |
Beattie, C; Guzman, RC; Hamdan, MA; Mascharack, P; Nandi, S; Yang, J | 1 |
Bronstein, SM; Hooth, MJ; Skopek, TR; Swenberg, JA | 1 |
Dolan, ME; Mitchell, RB; Moschel, RC; Mummert, C; Pegg, AE | 1 |
Dolan, ME; Mitchell, RB; Moschel, RC | 1 |
Dolan, ME; Dumenco, LL; Gerson, SL; Moschel, RC; Pegg, AE | 1 |
Dolan, ME; Moschel, RC; Mummert, C; Pegg, AE; Stine, L; Wiest, L | 1 |
Dolan, ME; Moschel, RC; Pegg, AE | 1 |
Dolan, ME; Mitchell, RB; Moschel, RC; Pegg, AE; Stine, L | 1 |
Chae, MY; Dolan, ME; Moschel, RC; Pegg, AE; Swenn, K | 1 |
Dolan, ME; Gonzalez, FJ; Korzekwa, KR; Moschel, RC; Roy, SK | 1 |
Balis, FM; Berg, SL; Cole, DE; Gerson, SL; Godwin, K; Liu, L | 1 |
Faustman, EM; Kidney, JK | 1 |
Crone, TM; Kanugula, S; Pegg, AE | 1 |
Gerson, SL; Willson, JK | 1 |
Magull-Seltenreich, A; Zeller, WJ | 2 |
Edara, S; Goodtzova, K; Kanugula, S; Pegg, AE | 3 |
Bigner, DD; Catino, JJ; Dolan, ME; Friedman, HS; Keir, S; Marcelli, S; Pegg, AE; Schold, SC | 1 |
Dolan, ME; Erickson, LC; Marathi, UK | 2 |
Elder, RH; Fairbairn, LJ; Margison, GP; Rafferty, JA; Watson, AJ | 1 |
Ikenaga, M; Izumi, I; Kohda, K; Kowada, M; Mineura, K; Watanabe, K | 1 |
Chae, MY; Dolan, ME; Friedman, HS; Moschel, RC; Mullen, JH; Pegg, AE | 1 |
Bindra, DS; Stella, VJ; Williams, TD | 1 |
Crone, TM; Edara, S; Goodtzova, K; Pegg, AE | 1 |
Dolan, ME; Flora, KP; Friedman, HS; Grever, MR; Moschel, RC; Pegg, AE; Vishnuvajjala, BR | 1 |
Crone, TM; Goodtzova, K; Pegg, AE | 1 |
Hughes, SH; Moschel, RC; Pauly, GT | 1 |
Berger, SJ; Donovan, C; Gerson, SL; Varnes, ME | 1 |
Ikenaga, M; Izumi, I; Kohda, K; Kowada, M; Koyama, K; Mineura, K; Terashima, I; Watanabe, K | 1 |
Elder, RH; Margison, GP; Rafferty, JA | 1 |
Anver, MR; Lijinsky, W; Moschel, RC; Pegg, AE | 1 |
Boosalis, M; Byers, TL; Dolan, ME; Moschel, RC; Pegg, AE; Samson, L; Swenn, K | 1 |
Kohda, K; Koyama, K; Terashima, I | 1 |
Dolan, ME; Felker, GM; Friedman, HS; Moschel, RC; Schold, C | 1 |
Deen, DF; Dolan, ME; Gonzalez, GG; Marton, LJ; Pegg, AE; Sarkar, A | 1 |
Chae, MY; Dolan, ME; McDougall, MG; Moschel, RC; Pegg, AE; Swenn, K | 1 |
Dolan, ME; Grindey, GB; Moschel, RC; Pegg, AE | 1 |
O'Toole, SM; Pegg, AE; Swenberg, JA | 1 |
Dolan, ME; Erickson, LC; Kroes, RA; Marathi, UK | 1 |
Crone, TM; Pegg, AE | 1 |
Gerson, SL; Gordon, NH; Norton, K; Willson, JK; Zborowska, E | 1 |
Bishop, RE; Dolan, ME; Dunn, LL; Moschel, RC; Pauly, GT | 1 |
Biser, ND; Dolan, ME; English, HF; Moschel, RC; Pegg, AE | 1 |
Chen, JM; Ikenaga, M; Moschel, RC; Zhang, YP | 1 |
Baer, JC; Freeman, AA; Margison, GP; Newlands, ES; Rafferty, JA; Watson, AJ | 1 |
Furusho, K; Gerson, SL; Kubota, M; Liu, L; Wakazono, Y | 1 |
Ali-Osman, F; Friedman, HS; Srivenugopal, KS; Yuan, XH | 1 |
May, BL; Newlands, ES; Porteus, JK; Wedge, SR | 1 |
Loktionova, NA; Pegg, AE | 2 |
Alas, LG; Belanich, M; Citron, ML; Dolan, ME; Gander, M; Kibitel, JT; Lejeune, FJ; Li, BF; Pastor, MA; Randall, T; Schold, SC; Wasserman, P; White, AB; Yarosh, DB | 1 |
Gerson, SL; Lee, K; Liu, L; Wasan, E | 1 |
Newlands, ES; Wedge, SR | 1 |
Bishop, RE; Moschel, RC; Pauly, GT | 1 |
Ali-Osman, F; Bigner, DD; Elion, GB; Friedman, HS; Keir, S; Marcelli, S; Moynihan, K | 1 |
Dolan, ME; Gupta, E; Roy, SK | 1 |
Donovan, C; Dumenco, LL; Gerson, SL; Kastan, M; Phillips, W | 1 |
Gerson, SL; Hoppel, CL; Ingalls, ST; Stefan, TL; Willson, JK | 1 |
Ali, RB; Ayi, TC; Li, BF; Lim, A; Oh, HK; Teo, AK; Yarosh, DB | 1 |
Kohda, K; Terashima, I | 1 |
Newlands, ES; Porteous, JK; Wedge, SR | 2 |
Bonmassar, E; D'Atri, S; Graziani, G; Lacal, PM; Orlando, L | 1 |
Allay, JA; Gerson, SL; Koç, ON; Lee, K; Liu, L; Phillips, WP; Zaidi, NH | 1 |
Bhattacharyya, NP; Maher, VM; McCormick, JJ; Tsujimura, T; Zhang, H | 1 |
Chinnasamy, N; Dexter, TM; Fairbairn, LJ; Hickson, I; Margison, GP; Rafferty, JA | 1 |
Allay, JA; Gerson, SL; Koç, ON; Lee, KM; Liu, L; Phillips, WP; Reese, JS | 1 |
Gerson, SL; Liu, L; Markowitz, S | 1 |
Archer, GE; Bigner, DD; Dolan, ME; Friedman, HS; Kurpad, SN; McLendon, RE; Moschel, RC; Pegg, AE | 1 |
Armstrong, MJ; Galloway, SM | 1 |
Ashby, J; Chinnasamy, N; Dexter, TM; Fairbairn, LJ; Hickson, I; Margison, GP; Rafferty, JA; Tinwell, H | 1 |
Edara, S; Goodtzova, K; Kanugula, S; Moschel, RC; Pauly, GT; Pegg, AE | 2 |
Edgren, MR; Egyházi, S; Hansson, J; Kröckel, D; Mannervik, B; Ringborg, U | 1 |
Christians, FC; Coates, MM; Dawson, BJ; Loeb, LA | 1 |
Fukuchi, M; Kohda, K; Kowada, M; Mineura, K; Terashima, I | 1 |
Chung, L; Moschel, RC; Pegg, AE | 1 |
Gerson, SL; Gordon, NH; Liu, L; Markowitz, SD; Phillips, WP; Willson, JK; Zaidi, NH; Zborowska, E | 1 |
Douglas, KT; Hickson, I; Margison, GP; Moody, PC; Rafferty, JA; Speers, P; Wibley, JE | 1 |
Davis, BM; Gerson, SL; Koç, ON; Lee, K; Reese, JS; Schupp, JE | 1 |
Kawate, H; Kohda, K; Sakumi, K; Sekiguchi, M; Terashima, I | 1 |
Aquilina, G; Bignami, M; Ceccotti, S; Hampson, R; Martinelli, S | 1 |
Coffman, BL; Green, MD; Iyer, L; King, CD; Ratain, MJ; Roy, SK; Tephly, TR; Whitington, PF | 1 |
Gerson, SL; Koç, ON; Lee, K; Liu, L; Schupp, J | 1 |
Gerson, SL; Hoppel, CL; Ingalls, ST; Minkler, PE; Spiro, TP; Stefan, TL; Willson, JK | 1 |
Benincasa, E; Bonmassar, E; Faraoni, I; Franco, D; Graziani, G; Lacal, PM; Tentori, L | 1 |
Kanugula, S; Pegg, AE; Xu-Welliver, M | 1 |
Dolan, ME; Fasanmade, AA; Paras, PR; Ratain, MJ; Roy, SK; Schilsky, RL | 1 |
Chae, MY; Dolan, ME; Garbiras, BJ; Helft, P; Moschel, RC; Paras, P; Pegg, AE; Roy, SK | 1 |
Chinnasamy, N; Fairbairn, LJ; Laher, J; Rafferty, JA; Willington, MA | 1 |
Faustman, EM; Seeley, MR | 1 |
Chinnasamy, N; Dexter, TM; Fairbairn, LJ; Hickson, I; Lashford, LS; Margison, GP; Rafferty, JA; Thatcher, N | 1 |
Brent, TP; Harris, LC; Marathi, UK; Venable, CC | 1 |
Dolan, ME; Pegg, AE | 1 |
Brent, TP; Edwards, CC; Harris, LC; Houghton, PJ; Marathi, UK; Sorrentino, BP; Srivastava, DK; Vanin, EF | 1 |
Berger, MS; Blank, A; Bobola, MS; Silber, JR; Tseng, SH | 1 |
Ashley, DM; Bigner, DD; Cokgor, I; Dolan, ME; Friedman, AH; Friedman, HS; Haglund, MM; Herndon, JE; Kerby, T; Kokkinakis, DM; McLendon, RE; Moschel, RC; Pegg, AE; Pluda, J; Rich, J; Schold, SC | 1 |
Balis, FM; Berg, SL; Godwin, K; McCully, CL; Murry, DJ | 1 |
Donnelly, DJ; Elder, RH; Kelly, J; Margison, GP; McCormick, JE; McElhinney, RS; McMurry, TB; Middleton, MR; Rafferty, JA; Watson, AJ; Willington, MA | 1 |
Kleibl, K; Margison, GP | 1 |
Davis, BM; Gerson, SL; Liu, L; Reese, JS | 1 |
Dolan, ME; Friedman, HS; Kokkinakis, DM; Lohrbach, KE; Olopade, OI; Wu, MH | 1 |
Aquilina, G; Bignami, M; Branch, P; Fiumicino, S; Humbert, O; Karran, P; Oda, S; Zijno, A | 1 |
Arends, MJ; Clarke, AR; Dekker, M; Howard, LA; Kelly, J; Margison, GP; te Riele, H; Toft, NJ; Winton, DJ; Wyllie, AH | 1 |
Gerson, SL; Liu, L; Pegg, AE; Schupp, J; Srinivasen, S | 1 |
Kooistra, R; Lohman, PH; Margison, GP; Pastink, A; Watson, AJ; Zonneveld, JB | 1 |
Bibby, MC; Margison, GP; McElhinney, RS; Rafferty, JA; Thompson, MJ | 1 |
Kanugula, S; Leitão, J; Pegg, AE; Xu-Welliver, M | 1 |
Davis, BM; Gerson, SL; Koç, ON; Liu, L; Majczenko, KJ; Reese, JS | 1 |
Gerson, SL; Haaga, J; Hoppel, CL; Ingalls, ST; Liu, L; Majka, S; Pluda, JM; Spiro, TP; Willson, JK | 1 |
Davis, BM; Gerson, SL; Koç, ON; Reese, JS | 1 |
Crone, TM; Kanugula, S; Loktionova, NA; Pegg, AE; Xu-Welliver, M | 2 |
Gerson, SL; Phillips, WP | 1 |
Erickson, LC; Kurpad, C; Maze, R; Pegg, AE; Williams, DA | 1 |
Kanugula, S; Leitão, J; Meehan, WJ; Pegg, AE; Xu-Welliver, M | 1 |
Chinnasamy, D; Chinnasamy, N; Dexter, T; Fairbairn, L; Lashford, L; Margison, G; Rafferty, J; Thatcher, N | 1 |
Erickson, LC; Kreklau, EL; Kurpad, C; Williams, DA | 1 |
Alvino, E; Bonmassar, E; D'Atri, S; Lacal, PM; Nunziata, C; Pagani, E; Pepponi, R | 1 |
Davis, BM; Gerson, SL; Liu, L; Pegg, AE; Roth, JC; Xu-Welliver, M | 1 |
Bissonnette, M; Brasitus, TA; Dolan, ME; Hart, J; Moschel, RC; Mustafi, R; Nguyen, L; Skarosi, S; Wali, RK; Zhang, Y | 1 |
Donnelly, DJ; Kelly, J; Margison, GP; McCormick, JE; McElhinney, RS; McMurry, TB; Middleton, MR; Thatcher, N | 1 |
Kokkinakis, DM; Moschel, RC; Pegg, AE; Schold, SC | 1 |
Pegg, AE; Xu-Welliver, M | 1 |
Arends, MJ; Brookes, RA; Clarke, AR; Margison, GP; Sansom, OJ; Toft, NJ; Winton, DJ; Wood, M | 1 |
Pegg, AE | 1 |
Eberhardt, W; Heim, MM; Müller, MR; Seeber, S | 1 |
Davis, BM; Gerson, SL; Koç, ON | 1 |
Bigner, DD; Dolan, ME; Friedman, HS; Keir, ST; Lawless, A; Moschel, RC; Pegg, AE | 1 |
Abdul-Rahman, S; Baker, TG; Bibby, MC; Margison, GP; Rafferty, JA; Thompson, MJ | 1 |
Encell, LP; Loeb, LA | 1 |
Gao, H; Lu, H; Wan, Y; Wu, D | 1 |
Erickson, LC; Kurpad, C; Maze, R; Pegg, A; Williams, DA | 1 |
Boley, SE; Maher, VM; McCormick, JJ; McManus, TP | 1 |
Daniels, DS; Tainer, JA | 1 |
Friedman, HS | 1 |
Bertucci, D; Dolan, ME; Ewesuedo, RB; Mani, S; Ratain, MJ; Schilsky, RL; Vogelzang, NJ; Wilson, LR | 1 |
Dolan, ME; Ewesuedo, RB | 1 |
Balis, FM; Berg, SL; Dolan, ME; Long, L; McCully, CL; Moschel, RC; Roy, SK; Song-Yoo, HW | 1 |
Bailey, J; Chandra, S; Cooper, R; D'Souza, M; Pegg, AE; Ragg, S; Seshadri, R; Williams, DA; Xu-Welliver, M | 1 |
Ashley, DM; Bigner, DD; Cokgor, I; Colvin, OM; Dolan, ME; Ewesuedo, RB; Friedman, AH; Friedman, HS; Garcia-Turner, AM; Haglund, MM; Herndon, JE; Long, L; McLendon, RE; Moschel, RC; Pegg, AE; Pluda, J; Provenzale, JM; Quinn, JA; Rich, JN; Sampson, J; Stewart, ES; Tourt-Uhlig, S | 1 |
Cai, Y; Dolan, ME; Ludeman, SM; Pegg, AE; Wu, MH; Xu-Welliver, M | 1 |
Brem, H; Dolan, ME; Rhines, LD; Sampath, P; Tyler, BM; Weingart, J | 1 |
Brent, TP; Houghton, P; Sawai, N; Sorrentino, BP; Vanin, EF; Zhou, S | 1 |
Goodtzova, K; Kanugula, S; Loktionova, NA; Moschel, RC; Pauly, GT; Pegg, AE | 1 |
Bocangel, DB; Kokkinakis, DM; Moschel, RC; Pegg, AE; Schold, SC | 1 |
Borowski, P; Bretner, M; Felczak, K; Kulikowski, T; Mueller, O; Niebuhr, A; Schmitz, H | 1 |
Dolan, ME; Long, L; Moschel, RC | 1 |
Christmann, M; Kaina, B; Lage, H; Pick, M; Schadendorf, D | 1 |
Christians, FC; Davis, BM; Encell, LP; Friebert, SE; Gerson, SL; Liu, L; Loeb, LA; Zielske, SP | 1 |
Cornetta, K; Erickson, LC; Kreklau, EL; Li, Z; Liu, N | 1 |
Blokland, I; Boudewijn, A; Down, JD; Margison, GP; McGown, AT; Ploemacher, RE; Watson, AJ; Westerhof, GR; Wood, M | 1 |
Moschel, RC; Pauly, GT | 1 |
Crankshaw, DL; Donaldson, EE; Kenney, PJ; Peterson, LA; Thomson, NM | 1 |
Gerson, SL; Haaga, J; Liu, L; Majka, S; Qin, X; Schupp, J; Spiro, TP; Willson, JK | 1 |
Abril, N; Luque-Romero, FL; Nohmi, T; Pueyo, C; Yamada, M | 1 |
Berger, NA; Berger, SJ; Dowlati, A; Gerson, SL; Haaga, J; Liu, L; Remick, SC; Spiro, TP; Willson, JK | 1 |
Gerson, SL; Koç, ON; Lee, K; Maitra, B | 1 |
Dolan, ME; Long, L | 1 |
Gao, H; Wan, Y; Wu, D | 1 |
Guengerich, FP; Woodside, AM | 2 |
Berman, E; Gallo, JM; Ma, J; Murphy, M; O'Dwyer, PJ; Reed, K | 1 |
Bigner, DD; Colvin, OM; Delaney, S; Dolan, ME; Friedman, AH; Friedman, HS; Gururangan, S; Haglund, MM; Herndon, JE; Kaplan, R; McLendon, RE; Moschel, RC; Pegg, AE; Pluda, J; Provenzale, JM; Quinn, JA; Reardon, DA; Rich, JN; Sampson, JH; Tourt-Uhlig, S | 1 |
Gerson, SL | 1 |
Davis, BM; Gerson, SL; Liu, L; Schwartz, S | 1 |
Bertucci, D; Dolan, ME; Karrison, T; Posner, M; Radosta, J; Ratain, MJ; Steinberg, G; Vujasin, L | 1 |
Biser-Rohrbaugh, A; Bunton, TE; Carson, BS; Gabikian, P; Guarnieri, M; Tyler, BM; Weingart, J; Wu, QZ | 1 |
Cai, Y; Chung, AB; Dolan, ME; Ludeman, SM; Wilson, LR | 1 |
Bigner, DD; Colvin, OM; Dolan, ME; Friedman, HS; Houghton, PJ; Keir, S; Moschel, RC; Pegg, AE | 1 |
Dalessio, PM; Fried, MG; Kanugula, S; Pegg, AE; Rasimas, JJ; Ropson, IJ | 1 |
Berger, MS; Erickson, LC; Hirose, Y; Kreklau, EL; Pieper, RO | 1 |
Allay, ER; Brent, TP; Hanawa, H; Hargrove, PW; Nienhuis, AW; Persons, DA; Sawai, N; Sorrentino, BP | 1 |
Gendreizig, S; Gronemeyer, T; Johnsson, K; Juillerat, A; Keppler, A; Pick, H; Vogel, H | 1 |
George, N; Johnsson, K; Johnsson, N; Kindermann, M | 1 |
Bowman, JE; Gerson, SL; Lingas, KT; Reese, JS | 1 |
Dolan, ME; Gandhi, MC; Ludeman, SM; Smith, SM; Springer, JB; Wilson, LR | 1 |
Delaney, SM; Dolan, ME; Egorin, MJ; Fishel, ML; Friesen, LD; Hansen, RJ; Moschel, RC; Zuhowski, EG | 1 |
Kanugula, S; Pegg, AE | 1 |
Germano, IM; Ito, H; Kanzawa, T; Kondo, S; Kondo, Y; Kyo, S | 1 |
Davis, BM; Gerson, SL; Lingas, K; Reese, JS | 1 |
Cupissol, D; Cuq, P; Depeille, P; Evrard, A; Montero, JL; Passagne, I; Vian, L; Winum, JY | 1 |
Ahmed, MM; Chendil, D; Kokkinakis, DM; Moschel, RC; Pegg, AE | 1 |
Donze, JR; Gerson, SL; Lingas, KT; Reese, JS; Zielske, SP | 1 |
Gendreizig, S; Johnsson, K; Kindermann, M | 1 |
Bedwell, J; Germano, IM; Kanzawa, T; Kondo, S; Kondo, Y | 1 |
Bailey, BJ; Erickson, LC; Hartwell, JR; Kreklau, EL; Liu, N; Pollok, KE; Williams, DA | 1 |
Davis, BM; Dropulic, B; Humeau, L | 1 |
Gendreizig, S; Johnsson, K; Keppler, A; Kindermann, M; Pick, H; Vogel, H | 1 |
Dunkel, IJ; Edgar, MA; Mark, EB; Occhiogrosso, G; Souweidane, MM | 1 |
Gerson, SL; Li, Y; Lingas, KT; Zielske, SP | 1 |
Cario-André, M; de Verneuil, H; Ged, C; Géronimi, F; Gerson, SL; Moreau-Gaudry, F; Richard, E; Robert, E | 1 |
Adams, D; Aleksic, A; Berg, S; Bernstein, M; Blaney, S; Neville, K; Thompson, P | 1 |
Choi, U; DeRavin, SS; Linton, GF; Loktionova, NA; Malech, HL; Pegg, AE; Whiting-Theobald, N; Yamashita, K | 1 |
Bacolod, MD; Bigner, DD; Bullock, NS; Colvin, OM; Dolan, ME; Fang, Q; Friedman, HS; Johnson, SP; Modrich, P; Moschel, RC; Pegg, AE | 1 |
Koch, M; Koomen, GJ; Wanner, MJ | 1 |
Loktionova, NA; Moschel, RC; Pegg, AE; Wei, G | 1 |
Delaney, SM; Dolan, ME; Egorin, MJ; Fishel, ML; Gamcsik, MP; Karrison, T; Maher, VM; Moschel, RC; Zuhowski, EG | 1 |
Donze, JR; Liu, L; Yan, L | 1 |
Blank, A; Bobola, MS; Ellenbogen, RG; Geyer, JR; Goff, RD; Silber, JR | 1 |
Cai, S; Cooper, RJ; Ferkowicz, MJ; Hartwell, JR; Kelley, MR; Pollok, KE; Xu, Y | 1 |
Asaumi, J; Fukui, K; Kawai, N; Kishi, K; Kokeguchi, S; Kuroda, M; Maki, Y; Matsubara, N; Murakami, J; Nagatsuka, H; Tanaka, N; Tsujigiwa, H; Yanagi, Y | 1 |
Bigner, DD; Birch, R; Brem, H; Dancey, JE; Delaney, SM; Desjardins, A; Dolan, ME; Friedman, AH; Friedman, HS; Gururangan, S; Herndon, JE; Maxwell, J; McLendon, RE; Moschel, RC; Pegg, AE; Provenzale, JM; Quinn, JA; Reardon, DA; Rich, J; Sampson, JH; Tourt-Uhlig, S; Vredenburgh, J; Weingart, J | 1 |
Aikin, AA; Balis, FM; Fox, E; Libucha, M; Packer, RJ; Warren, KE; Widemann, BC | 1 |
Dolan, E; Gajewski, TF; Gerson, SL; Lin, S; Liu, L; Sosman, J; Vokes, EE | 1 |
Bleibel, WK; Dolan, ME; Fishel, ML; Li, X; Moschel, RC; Rabik, CA | 1 |
Kosenko, IG; Moshkovskaia, EIu; Vasil'eva, SV | 1 |
Baumann, RP; Penketh, PG; Sartorelli, AC; Seow, HA; Shyam, K | 1 |
Covas, DT; Davis, BM; Encell, LP; Fontes, AM; Gerson, SL; Lingas, K; Loeb, LA; Pegg, AE; Zago, MA | 1 |
Agamah, ES; Brockstein, BB; Delaney, SM; Dolan, ME; McLendon, R; Ryan, CW; Samuels, BL; Vokes, EE | 1 |
Friedman, H; Shankar, S; Vaidyanathan, G; Zalutsky, MR | 1 |
Chidley, C; Gronemeyer, T; Heinis, C; Johnsson, K; Juillerat, A | 1 |
Ding, J; Geng, MY; Meng, LH; Miao, ZH | 1 |
Dolan, ME; Njoku, MC; Rabik, CA | 1 |
Middleton, MR; Sabharwal, A | 1 |
Baum, C; Fujita, J; Itoh, K; Itoh, Y; Masuda, T; Okanoue, T; Umemura, A; Yamaguchi, K | 1 |
Aldape, K; Black, PM; Chakravarti, A; Erkkinen, MG; Gilbert, MR; Loeffler, JS; Mehta, M; Nestler, U; Stupp, R | 1 |
Arrivoli, C; Ellenberg, J; Keppler, A; Sironi, L | 1 |
Alvino, E; Bonmassar, E; Caporali, S; Caporaso, P; Castiglia, D; D'Atri, S; Fischer, F; Jiricny, J; Lacal, PM; Marra, G; Pepponi, R; Zambruno, G | 1 |
Boor, S; Hundsberger, T; Kaina, B; Koch, D | 1 |
Delaney, SM; Dolan, ME; Hansen, RJ; Nagasubramanian, R; Samson, LD | 1 |
Chen, CC; D'Andrea, A; Taniguchi, T | 1 |
Carson, KA; Delaney, SM; Dolan, ME; Fisher, JD; Grossman, SA; Judy, K; Olivi, A; Rosenblum, ML; Tatter, SB; Weingart, J | 1 |
Juillerat, A; Juillerat-Jeanneret, L | 1 |
Angel, KC; Egli, M; Eoff, RL; Guengerich, FP | 1 |
Bahlis, N; Batts, ED; Fu, P; Gerson, SL; Kane, D; Liu, L; Maisel, C; O'Brien, T; Remick, S | 1 |
Asaumi, J; Fukui, K; Kokeguchi, S; Kuroda, M; Lee, YJ; Matsubara, N; Murakami, J; Nagatsuka, H; Tanaka, N; Tsujigiwa, H | 1 |
Ball, CR; Fessler, S; Glimm, H; Pilz, IH; Schmidt, M; von Kalle, C; Williams, DA | 1 |
Beaufils, F; Maddox, E; Mottram, LF; Peterson, BR; Schwab, M | 1 |
Billups, CA; Danks, MK; McLendon, RE; Wagner, LM; Weiss, BD; Yoon, KJ | 1 |
Adema, AD; Bhakat, KK; Boven, E; Fontijn, D; Peters, GJ; Pinedo, HM | 1 |
Adams, DM; Berg, SL; Bernstein, M; Blaney, SM; Neville, K; Zhou, T | 1 |
Boyett, JM; Broniscer, A; Danks, MK; Friedman, HS; Gajjar, A; Goldman, S; Gururangan, S; Kun, LE; MacDonald, TJ; Packer, RJ; Poussaint, TY; Stewart, CF; Wallace, D | 1 |
Arnold, A; Banala, S; Johnsson, K | 1 |
Ogawa, M; Ueda, T; Yamauchi, T | 1 |
Benhattar, J; Bernasconi, CC; Bricod, C; Gros, S; Janzer, RC; Juillerat-Jeanneret, L; Trepey, S | 1 |
Dolan, ME; Egorin, MJ; Fishel, ML; Holleran, JL; Kasza, K; Kelley, MR; Rabik, CA | 1 |
Ishiguro, K; Penketh, PG; Sartorelli, AC; Shyam, K | 1 |
Fang, Q; Guida, WC; Loktionova, NA; Pauly, GT; Pegg, AE; Vankayala, SL | 1 |
Bartnik, CM; Dolan, ME; Kasza, K; Maryon, EB; Rabik, CA; Shafer, JT | 1 |
Biswas, K; Chang, S; Haines, DC; Kaldis, P; Kanugula, S; Kuznetsov, SG; Loktionova, NA; Pegg, AE; Philip, S; Sharan, SK; Swaminathan, S | 1 |
Bigner, DD; Carter, J; Desjardins, A; Friedman, AH; Friedman, HS; Gururangan, S; Herndon, JE; Jiang, SX; McLendon, RE; Quinn, JA; Reardon, DA; Rich, JN; Sampson, JH; Threatt, S; Vredenburgh, JJ | 1 |
Aebischer, A; Bannwarth, M; Correa, IR; Fellay, C; Johnsson, K; Pouvreau, S; Rois, E; Royer, L; Sztretye, M | 1 |
Bigner, DD; Desjardins, A; Friedman, AH; Friedman, HS; Gururangan, S; Herndon, JE; Jiang, SX; McLendon, RE; Quinn, JA; Reardon, DA; Rich, JN; Sampson, JH; Vredenburgh, JJ; Walker, A | 2 |
Cadet, J; Fuchs, RP; Gasparutto, D; Mazon, G; Philippin, G | 1 |
Desjardins, A; Friedman, HS; Gururangan, S; Herndon, JE; Jiang, SX; McLendon, RE; Quinn, JA; Reardon, DA; Sampson, JH; Vredenburgh, JJ | 1 |
Alexander, IE; Gunning, PW; Hardeman, EC; Hook, J; Joya, JE; Kahatapitiya, P; Kramer, B; Lee, AS; Liu, R; McCowage, G; Montarras, D; Schevzov, G | 1 |
Aikin, AA; Balis, FM; Cole, DE; Fox, E; Meany, HJ; Warren, KE | 1 |
Choi, U; Clevenger, JR; Donahue, RE; Dunbar, CE; Kang, E; Krouse, A; Larochelle, A; Loktionova, NA; Malech, HL; Metzger, M; Naumann, N; Persons, D; Shou, Y; Sorrentino, BP; Stewart, C | 1 |
Parang, K; Tiwari, R | 1 |
Coffey, M; Hollywood, D; Lawler, M; Marignol, L; Marples, B; Martin, L | 1 |
Baker, CH; Bhakat, KK; Bobustuc, GC; Colon, J; Isley, B; Kalkunte, SS; Konduri, SD; Srivenugopal, KS; Sutphin, RM; Ticku, J | 1 |
Cruz-Vallejo, VL; Morales-Ramírez, P; Vallarino-Kelly, T | 1 |
Adair, JE; Beard, BC; Ironside, C; Kiem, HP; McCune, JS; Trobridge, GD | 1 |
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Jin, YH; Liu, HY; Shu, F; Wang, QJ; Wang, Z; Yang, Y; Zhang, WB | 1 |
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Baumann, RP; Liu, MC; Luo, MZ; Penketh, PG; Sartorelli, AC; Shyam, K; Zhu, R | 1 |
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Barth, S; Hussain, AF; Kampmeier, F; Merk, HF; Tur, MK; von Felbert, V | 1 |
Cole, NB; Donaldson, JG | 1 |
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Azoulay, M; Dingli, F; Florent, JC; Johannes, L; Lamaze, C; Loew, D; Shi, G | 1 |
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Baumann, RP; Ishiguro, K; Patridge, EV; Penketh, PG; Sartorelli, AC; Shyam, K; Zhu, R | 1 |
Cao, Q; Peterson, LA; Upadhyaya, P; Urban, AM | 1 |
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Baumann, RP; Penketh, PG; Sartorelli, AC; Shyam, K; Zhu, R | 1 |
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Gahlon, HL; Schweizer, WB; Sturla, SJ | 1 |
Hatzidaki, E; Papandreou, CN; Vlachostergios, PJ | 1 |
Barth, S; Calderón, M; Haag, R; Hussain, AF; Kampmeier, F; Kratz, F; Krüger, HR; Licha, K; Weissbach, T | 1 |
Huang, F; Jiang, Y; Pei, Y; Qian, L; Tang, Y; Wang, K; Zhang, H; Zhang, X; Zheng, J | 1 |
Cho, SH; Guengerich, FP | 1 |
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Fan, T; Li, S; Sun, G; Zhao, L; Zhong, R | 1 |
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Adair, JE; Baldock, AL; Beard, BC; Born, DE; Bridge, CA; Gonzalez-Cuyar, LF; Gori, JL; Guyman, LA; Hawkins-Daarud, A; Johnston, SK; Kiem, HP; Mrugala, MM; Rockhill, JK; Rockne, RC; Silbergeld, DL; Storer, BE; Swanson, KR | 1 |
Gholami, Z; Hanley, Q | 1 |
Chiarelli, PA; Ellenbogen, RG; Fang, C; Hatzinger, SJ; Kievit, FM; Silber, JR; Stephen, ZR; Veiseh, O; Wang, K; Zhang, M | 1 |
Boby, ML; Gahlon, HL; Sturla, SJ | 1 |
Barr, JT; Jones, JP; Oberlies, NH; Paine, MF | 1 |
Bobustuc, GC; Frick, J; Konduri, SD; Patel, A; Srivenugopal, KS; Thompson, M; Weese, J | 1 |
Barth, S; Bauerschlag, D; Bräutigam, K; Hussain, AF; Maass, N; Meinhold-Heerlein, I; von Felbert, V; Woitok, M | 1 |
Barth, S; Bialon, M; Fischer, R; Friesen, L; Grezella, C; Pham, AT; Püttmann, C; Sieben, T; Stein, C | 1 |
Marx, A; Nilforoushan, A; Sturla, SJ; Williams, DM; Wyss, LA | 1 |
Amoury, M; Barth, S; Bauerschlag, D; Berges, N; Bleilevens, A; Bräutigam, K; Di Fiore, S; Fischer, R; Hussain, AF; Maass, N; Meinhold-Heerlein, I; Mintert, I; Stickeler, E; von Felbert, V; Zeppernick, F | 1 |
Hashimoto, K; Nakamura, J; Sasanuma, H; Sharma, V; Swenberg, JA; Takata, M; Takeda, S; Tian, X | 1 |
Cassona, CP; Henriques, AO; Pereira, F; Serrano, M | 1 |
Jiang, Y; Li, X; Liu, C; Wang, F; Yao, S | 1 |
Chen, L; Song, X; Wang, C; Xiao, Y | 1 |
Carlson, S; Chan, DV; Cooper, KD; Dowlati, A; Fu, P; Gerson, SL; Groft, S; Honda, K; Lu, K; McCormick, TS; Rosenjack, J; Tacastacas, JD | 1 |
Arens, K; Berges, N; Di Fiore, S; Fischer, R; Kreusch, V | 1 |
Alexander, IE; Ching, YW; Dent, R; Kramer, B; McCowage, G; Middlemiss, S; Rush, A; Singh, R; Wischusen, J | 1 |
Li, JB; Li, Q; Merkle, T; Moschref, M; Selvasaravanan, KD; Stafforst, T; Vogel, P | 1 |
Hu, SX | 1 |
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Vuong, C; Wai, H; Wang, B; Wang, D; Wang, H; Wang, JJ; Wang, K; Wang, L; Wang, Q; Wang, YR; Watanabe, S; Watters, AK; Weerasekera, MM; Wei, L; Wheeler, DA; Wiegand, I; Wifling, D; Wijesinghe, GK; Winiczenko, R; Wolker, T; Wu, J; Wu, TC; Wu, YY; Xie, P; Xie, YP; Xu, A; Xu, E; Xu, L; Xu, Z; Yamaguchi, M; Yang, A; Yang, G; Yang, J; Yang, TM; Yang, W; Yang, Y; Yarema, KJ; Yesiltepe, M; Yi, KJ; Yigit, N; Yim, UH; Yin, B; Yu, S; Zengin, G; Zhang, B; Zhang, C; Zhang, GR; Zhang, H; Zhang, J; Zhang, L; Zhang, TY; Zhang, X; Zhang, Y; Zhang, YX; Zhao, H; Zhao, JC; Zhao, Z; Zheng, R; Zhou, W; Zorn Morales, N | 1 |
Chen, S; Lau, AJ; Saburulla, NF; Wong, SY; Xie, J; Yap, ZP; Zhang, LH | 1 |
He, H; Macias-Contreras, M; Zhu, L | 1 |
Bertrand, R; Bodo, S; Bouvet, D; Colas, C; Coulet, F; Duval, A; Guillerm, E; Muleris, M; Munier, A | 1 |
Fan, T; Li, Q; Liu, J; Wang, J; Wang, Y; Xiao, C; Yin, G; Zhang, Y; Zhao, X; Zheng, X | 1 |
Alshareef, M; Cachia, D; Das, A; Henderson, FC; Infinger, LK; Kanginakudru, I; Lindhorst, SM; Patel, SJ; Porto, GBF; Vandergrift, WA; Varma, AK | 1 |
Abbasi, A; Jones, JP; Joswig-Jones, CA | 1 |
Chen, WH; Hindle, A; Koneru, B; Lopez-Barcons, L; Makena, MR; Nguyen, TH; Reynolds, CP | 1 |
12 review(s) available for o(6)-benzylguanine and guanine
Article | Year |
---|---|
O6-alkylguanine-DNA alkyltransferase. A target for the modulation of drug resistance.
Topics: Alkylating Agents; Biological Transport; Carmustine; Clinical Trials as Topic; DNA Damage; DNA Repair; DNA, Neoplasm; Drug Resistance; Guanine; Humans; Inactivation, Metabolic; Methyltransferases; Neoplasm Proteins; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase | 1995 |
Role of DNA repair in resistance to drugs that alkylate O6 of guanine.
Topics: Amino Acid Sequence; Animals; Antineoplastic Agents, Alkylating; DNA Repair; Drug Resistance; Genetic Therapy; Guanine; Humans; Methyltransferases; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase | 1996 |
O6-benzylguanine and its role in chemotherapy.
Topics: Animals; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Carmustine; DNA Repair; Enzyme Inhibitors; Guanine; Humans; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Transplantation, Heterologous | 1997 |
Increasing DNA repair capacity in bone marrow by gene transfer as a prospective tool in cancer therapy.
Topics: Alkylation; Amino Acid Sequence; Animals; Antineoplastic Agents; Antineoplastic Agents, Alkylating; Bone Marrow Cells; Cell Line; Cricetinae; Cricetulus; DNA Adducts; DNA Damage; DNA Repair; Drug Resistance; Drug Resistance, Neoplasm; Enzyme Inhibitors; Gene Targeting; Gene Transfer Techniques; Guanine; Hematopoiesis; Hematopoietic Stem Cells; Humans; Mice; Molecular Sequence Data; Neoplasm Proteins; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Fusion Proteins; Sequence Alignment; Sequence Homology, Amino Acid | 1998 |
O6-benzylguanine-resistant mutant MGMT genes improve hematopoietic cell tolerance to alkylating agents.
Topics: Alkylating Agents; Drug Resistance; Enzyme Inhibitors; Guanine; Hematopoietic Stem Cells; Humans; O(6)-Methylguanine-DNA Methyltransferase | 1999 |
Repair of O(6)-alkylguanine by alkyltransferases.
Topics: Alkyl and Aryl Transferases; Animals; DNA Adducts; DNA Repair; Guanine; Humans | 2000 |
Conserved structural motifs governing the stoichiometric repair of alkylated DNA by O(6)-alkylguanine-DNA alkyltransferase.
Topics: Alkylation; Amino Acid Sequence; Amino Acid Substitution; Archaeal Proteins; Arginine; Bacterial Proteins; Binding Sites; Cysteine; DNA Damage; DNA Repair; Evolution, Molecular; Guanine; Helix-Turn-Helix Motifs; Humans; Hydrogen Bonding; Models, Molecular; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Point Mutation; Protein Binding; Protein Conformation; Sequence Alignment; Sequence Homology, Amino Acid | 2000 |
Clinical relevance of MGMT in the treatment of cancer.
Topics: Antineoplastic Agents; DNA Adducts; DNA Repair; Drug Resistance, Neoplasm; Genetic Therapy; Guanine; Humans; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Structure-Activity Relationship | 2002 |
Emerging cancer therapeutic opportunities target DNA-repair systems.
Topics: Animals; Antineoplastic Agents; Ataxia Telangiectasia Mutated Proteins; Cell Cycle Proteins; DNA Damage; DNA Repair; DNA-Binding Proteins; DNA, Neoplasm; Drug Resistance, Neoplasm; Guanine; Humans; Morpholines; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Poly(ADP-ribose) Polymerases; Protein Serine-Threonine Kinases; Pyrones; Quinazolines; Signal Transduction; Tumor Suppressor Proteins | 2006 |
Inactivation of O6-alkylguanine DNA alkyltransferase as a means to enhance chemotherapy.
Topics: Antineoplastic Agents; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; DNA Repair Enzymes; Drug Resistance; Enzyme Inhibitors; Guanine; Hematopoietic Stem Cells; Humans; O(6)-Methylguanine-DNA Methyltransferase; Platinum Compounds | 2006 |
Exploiting the role of O6-methylguanine-DNA-methyltransferase (MGMT) in cancer therapy.
Topics: Animals; Antineoplastic Agents; Camptothecin; Clinical Trials as Topic; Dacarbazine; DNA Adducts; DNA Methylation; DNA Topoisomerases, Type I; Drug Administration Schedule; Enzyme Inhibitors; Gene Expression Regulation, Neoplastic; Guanine; Humans; Irinotecan; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Organoplatinum Compounds; Prognosis; Promoter Regions, Genetic; Temozolomide; Topoisomerase I Inhibitors | 2006 |
S-alkylthiolation of O6-methylguanine-DNA-methyltransferase (MGMT) to sensitize cancer cells to anticancer therapy.
Topics: Antineoplastic Agents, Alkylating; Drug Resistance, Neoplasm; Enzyme Inhibitors; Guanine; Humans; Mutation; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Protein Conformation | 2007 |
28 trial(s) available for o(6)-benzylguanine and guanine
Article | Year |
---|---|
Simultaneous determination of O6-benzylguanine and 8-oxo-O6-benzylguanine in human plasma by reversed-phase high-performance liquid chromatography.
Topics: Antineoplastic Agents; Chromatography, High Pressure Liquid; Guanine; Humans; Hydrogen-Ion Concentration; Quality Control; Sensitivity and Specificity | 1997 |
O6-benzylguanine in humans: metabolic, pharmacokinetic, and pharmacodynamic findings.
Topics: Alkyl and Aryl Transferases; Antineoplastic Agents; Guanine; Half-Life; Humans; Infusions, Intravenous; Leukocytes, Mononuclear; Neoplasms | 1998 |
Phase I trial of O6-benzylguanine for patients undergoing surgery for malignant glioma.
Topics: Adult; Aged; Brain Neoplasms; Enzyme Inhibitors; Glioblastoma; Guanine; Humans; Middle Aged; O(6)-Methylguanine-DNA Methyltransferase; Preoperative Care | 1998 |
O6-benzylguanine: a clinical trial establishing the biochemical modulatory dose in tumor tissue for alkyltransferase-directed DNA repair.
Topics: Adult; Aged; Antineoplastic Agents, Alkylating; Biopsy; Biotransformation; Breast Neoplasms; Carmustine; Digestive System Neoplasms; DNA Repair; DNA, Neoplasm; Drug Resistance, Neoplasm; Female; Guanine; Humans; Lung Neoplasms; Male; Middle Aged; Neoplasm Proteins; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Prodrugs; Safety; Tomography, X-Ray Computed | 1999 |
Phase I clinical and pharmacological study of O6-benzylguanine followed by carmustine in patients with advanced cancer.
Topics: Adult; Aged; Aged, 80 and over; Antineoplastic Combined Chemotherapy Protocols; Carmustine; Dose-Response Relationship, Drug; Female; Guanine; Humans; Male; Middle Aged; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase | 2000 |
Phase I trial of carmustine plus O6-benzylguanine for patients with recurrent or progressive malignant glioma.
Topics: Adult; Antineoplastic Combined Chemotherapy Protocols; Astrocytoma; Carmustine; Central Nervous System Neoplasms; Drug Administration Schedule; Glioblastoma; Guanine; Humans; Middle Aged; Neoplasm Recurrence, Local | 2000 |
Phase II trial of carmustine plus O(6)-benzylguanine for patients with nitrosourea-resistant recurrent or progressive malignant glioma.
Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Area Under Curve; Brain Neoplasms; Carmustine; Dose-Response Relationship, Drug; Drug Administration Schedule; Drug Resistance, Neoplasm; Female; Glioma; Guanine; Humans; Male; Middle Aged; Nitrosourea Compounds; Treatment Outcome | 2002 |
Determination of the optimal modulatory dose of O6-benzylguanine in patients with surgically resectable tumors.
Topics: Aged; Aged, 80 and over; Animals; Antineoplastic Agents; CHO Cells; Cricetinae; DNA Methylation; DNA Repair; Dose-Response Relationship, Drug; Female; Guanine; Humans; Male; Middle Aged; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Tumor Cells, Cultured | 2002 |
Pharmacokinetics of O(6)-benzylguanine in pediatric patients with central nervous system tumors: a pediatric oncology group study.
Topics: Adolescent; Adult; Antineoplastic Agents; Area Under Curve; Brain Neoplasms; Central Nervous System Neoplasms; Chromatography, High Pressure Liquid; DNA Repair; Dose-Response Relationship, Drug; Enzyme Inhibitors; Guanine; Humans; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Time Factors; Treatment Outcome | 2004 |
Phase I trial of temozolomide plus O6-benzylguanine for patients with recurrent or progressive malignant glioma.
Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Dacarbazine; Disease Progression; Female; Glioma; Guanine; Humans; Infusions, Intravenous; Injections, Intravenous; Male; Maximum Tolerated Dose; Middle Aged; Temozolomide | 2005 |
Phase I study of O6-benzylguanine and temozolomide administered daily for 5 days to pediatric patients with solid tumors.
Topics: Adolescent; Adult; Antineoplastic Combined Chemotherapy Protocols; Child; Child, Preschool; Dacarbazine; Dose-Response Relationship, Drug; Drug Administration Schedule; Female; Guanine; Humans; Injections, Intravenous; Male; Maximum Tolerated Dose; Neoplasms; Prognosis; Temozolomide | 2005 |
Phase II trial of the O6-alkylguanine DNA alkyltransferase inhibitor O6-benzylguanine and 1,3-bis(2-chloroethyl)-1-nitrosourea in advanced melanoma.
Topics: Adult; Aged; Aged, 80 and over; Antineoplastic Agents; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Carbon Monoxide; Carmustine; Cohort Studies; Disease Progression; Female; Guanine; Humans; Leukocytes, Mononuclear; Male; Melanoma; Middle Aged; Neoplasm Metastasis; O(6)-Methylguanine-DNA Methyltransferase; Time Factors; Treatment Outcome | 2005 |
A phase II trial of O6-benzylguanine and carmustine in patients with advanced soft tissue sarcoma.
Topics: Adult; Aged; Anemia; Antineoplastic Combined Chemotherapy Protocols; Carmustine; Enzyme Inhibitors; Female; Gastrointestinal Stromal Tumors; Guanine; Humans; Immunohistochemistry; Infant; Injections, Intravenous; Leiomyosarcoma; Male; Middle Aged; O(6)-Methylguanine-DNA Methyltransferase; Sarcoma; Survival Analysis; Tachycardia, Supraventricular; Thrombocytopenia; Treatment Outcome | 2006 |
Phase I trial of polifeprosan 20 with carmustine implant plus continuous infusion of intravenous O6-benzylguanine in adults with recurrent malignant glioma: new approaches to brain tumor therapy CNS consortium trial.
Topics: Adult; Aged; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Carmustine; Drug Delivery Systems; Female; Glioma; Guanine; Humans; Infusions, Intravenous; Male; Middle Aged; Neoplasm Recurrence, Local; O(6)-Methylguanine-DNA Methyltransferase | 2007 |
O6-benzylguanine and BCNU in multiple myeloma: a phase II trial.
Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Carmustine; DNA; Drug Administration Schedule; Female; Follow-Up Studies; Guanine; Humans; Male; Middle Aged; Multiple Myeloma; Patient Selection; Reference Values | 2007 |
Phase 1 trial of O6-benzylguanine and BCNU in children with CNS tumors: a Children's Oncology Group study.
Topics: Adolescent; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Bone Marrow Diseases; Carmustine; Central Nervous System Neoplasms; Child; Child, Preschool; Cohort Studies; Combined Modality Therapy; DNA Repair; DNA, Neoplasm; Enzyme Inhibitors; Female; Guanine; Humans; Male; Maximum Tolerated Dose; Neoplasm Proteins; O(6)-Methylguanine-DNA Methyltransferase; Salvage Therapy | 2008 |
Phase I trial of single-dose temozolomide and continuous administration of o6-benzylguanine in children with brain tumors: a pediatric brain tumor consortium report.
Topics: Adolescent; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Child; Child, Preschool; Dacarbazine; Enzyme Inhibitors; Female; Guanine; Humans; Infant; Male; Temozolomide; Treatment Outcome | 2007 |
Phase II trial of Gliadel plus O6-benzylguanine in adults with recurrent glioblastoma multiforme.
Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Carmustine; Decanoic Acids; Female; Glioblastoma; Guanine; Humans; Male; Middle Aged; O(6)-Methylguanine-DNA Methyltransferase; Polyesters; Recurrence; Survival Analysis | 2009 |
Phase II trial of temozolomide plus o6-benzylguanine in adults with recurrent, temozolomide-resistant malignant glioma.
Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Dacarbazine; Drug Resistance, Neoplasm; Female; Glioma; Guanine; Humans; Male; Middle Aged; Neoplasm Recurrence, Local; Temozolomide | 2009 |
Phase I trial of temozolomide plus O6-benzylguanine 5-day regimen with recurrent malignant glioma.
Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Dacarbazine; Female; Glioma; Guanine; Humans; Male; Maximum Tolerated Dose; Middle Aged; Neoplasm Recurrence, Local; Temozolomide; Treatment Outcome | 2009 |
Phase 1 trial of temozolomide plus irinotecan plus O6-benzylguanine in adults with recurrent malignant glioma.
Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Camptothecin; Dacarbazine; Disease-Free Survival; Female; Glioma; Guanine; Humans; Irinotecan; Male; Maximum Tolerated Dose; Middle Aged; Neoplasm Recurrence, Local; Temozolomide | 2009 |
Pharmacokinetics of temozolomide administered in combination with O6-benzylguanine in children and adolescents with refractory solid tumors.
Topics: Adolescent; Age Factors; Antineoplastic Combined Chemotherapy Protocols; Child; Child, Preschool; Chromatography, High Pressure Liquid; Dacarbazine; Dose-Response Relationship, Drug; Drug Interactions; Female; Guanine; Hematologic Diseases; Humans; Male; Neoplasms; Sex Factors; Tandem Mass Spectrometry; Temozolomide; Young Adult | 2009 |
A phase II study of O6-benzylguanine and temozolomide in pediatric patients with recurrent or progressive high-grade gliomas and brainstem gliomas: a Pediatric Brain Tumor Consortium study.
Topics: Adolescent; Antineoplastic Agents; Brain Stem Neoplasms; Child; Child, Preschool; Dacarbazine; DNA Modification Methylases; DNA Repair Enzymes; Drug Therapy, Combination; Female; Glioma; Guanine; Humans; Kaplan-Meier Estimate; Ki-67 Antigen; Male; Proportional Hazards Models; Retrospective Studies; Temozolomide; Tumor Suppressor Proteins; Young Adult | 2012 |
Phase I clinical trial of O6-benzylguanine and topical carmustine in the treatment of cutaneous T-cell lymphoma, mycosis fungoides type.
Topics: Administration, Topical; Adult; Aged; Aged, 80 and over; Antineoplastic Agents, Alkylating; Biomarkers, Tumor; Biopsy; Carmustine; Dose-Response Relationship, Drug; Drug Therapy, Combination; Enzyme Inhibitors; Female; Follow-Up Studies; Guanine; Humans; Infusions, Intravenous; Male; Middle Aged; Mycosis Fungoides; O(6)-Methylguanine-DNA Methyltransferase; Skin Neoplasms; Treatment Outcome | 2012 |
Gene therapy enhances chemotherapy tolerance and efficacy in glioblastoma patients.
Topics: Adult; Bone Marrow; Brain Neoplasms; Carmustine; Combined Modality Therapy; Dacarbazine; DNA Modification Methylases; DNA Repair Enzymes; Drug Resistance, Neoplasm; Female; Genetic Therapy; Glioblastoma; Guanine; Hematopoietic Stem Cell Transplantation; Humans; Male; Middle Aged; Models, Biological; Prospective Studies; Temozolomide; Tumor Suppressor Proteins | 2014 |
Evaluation of O6-Benzylguanine-Potentiated Topical Carmustine for Mycosis Fungoides: A Phase 1-2 Clinical Trial.
Topics: Administration, Cutaneous; Administration, Intravenous; Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Carmustine; Female; Guanine; Hospitals, University; Humans; Lymphoma, T-Cell, Cutaneous; Male; Maximum Tolerated Dose; Middle Aged; Mycosis Fungoides; Neoplasm Staging; O(6)-Methylguanine-DNA Methyltransferase; Skin Neoplasms; Treatment Outcome | 2017 |
Clinical Trial of MGMT(P140K) Gene Therapy in the Treatment of Pediatric Patients with Brain Tumors.
Topics: Brain Neoplasms; Child; DNA Modification Methylases; DNA Repair Enzymes; Drug Resistance, Neoplasm; Female; Genetic Therapy; Guanine; Hematopoietic Stem Cell Transplantation; Hematopoietic Stem Cells; Humans; Male; Temozolomide; Tumor Suppressor Proteins | 2018 |
Topics: Activities of Daily Living; Acute Disease; Adalimumab; Adaptation, Physiological; Adenosine Triphosphate; Adipose Tissue; Administration, Intravaginal; Adolescent; Adsorption; Adult; Adverse Childhood Experiences; Age Distribution; Age Factors; Aged; Aged, 80 and over; Air Pollution, Indoor; Aldehyde Oxidase; Alginates; Alloys; alpha-Globins; Aluminum Hydroxide; Alveolar Bone Loss; Anaerobiosis; Anesthesia, General; Anesthetics; Animals; Anovulation; Anti-Bacterial Agents; Anti-Infective Agents; Anti-Inflammatory Agents, Non-Steroidal; Antibodies, Monoclonal, Humanized; Antineoplastic Agents; Apoptosis; Bacillus cereus; Bacterial Typing Techniques; Bacteroidetes; Base Composition; Biocompatible Materials; Biofilms; Biological Availability; Biological Transport; Biosensing Techniques; Bipolar Disorder; Blood Glucose; Body Mass Index; Bone Regeneration; Boranes; Brachial Artery; Butyric Acid; Candida albicans; Carbon; Carcinoembryonic Antigen; Cell Differentiation; Cell Line, Tumor; Cell Respiration; Cell Survival; Cells, Cultured; Cerebrovascular Circulation; Charcoal; Child; Child Health; China; Chloride Channels; Chlorides; CHO Cells; Chromatography, Liquid; Chromatography, Micellar Electrokinetic Capillary; Chromium; Chronic Disease; Chronic Periodontitis; Circular Dichroism; Cities; Cohort Studies; Comamonadaceae; Comorbidity; Coronary Artery Disease; Corrosion; Cricetinae; Cricetulus; Cross Infection; Cross-Sectional Studies; Crowding; Culture Media; Cytokines; Diabetes Mellitus; Diabetes Mellitus, Type 2; Diabetes, Gestational; Diarylheptanoids; Diclofenac; Disability Evaluation; Diterpene Alkaloids; DNA; DNA Mutational Analysis; DNA, Bacterial; Drug Liberation; Drug Resistance, Multiple, Bacterial; Electrochemical Techniques; Electrodes; Electrolytes; Endothelium, Vascular; Enterococcus faecalis; Epithelial Cell Adhesion Molecule; Epithelial Cells; Erbium; Erythropoietin; Ethanol; Ethylenediamines; Fast Foods; Fatty Acids; Female; Fermentation; Ferric Compounds; Fibroblasts; Flavobacteriaceae; Fluorides; Fluorodeoxyglucose F18; Food Microbiology; Formaldehyde; Furaldehyde; Gamma Cameras; Gene Expression; Geologic Sediments; Glucose Tolerance Test; Glycated Hemoglobin; Glycolipids; Glycosylation; Gracilaria; Gram-Negative Bacteria; Gram-Negative Bacterial Infections; Guanine; Health Surveys; HeLa Cells; Hemoglobins, Abnormal; Hexosamines; High Fructose Corn Syrup; High-Intensity Interval Training; Hip Fractures; Hippocampus; HLA-B27 Antigen; Hospitalization; Housing; Humans; Hydrogen-Ion Concentration; Hydrolysis; Hydroxides; Hypercapnia; Hypertension; Hypocreales; Hypromellose Derivatives; Image Processing, Computer-Assisted; Incidence; Indole Alkaloids; Indonesia; Inflammation Mediators; Infrared Rays; Insulin Resistance; Intercalating Agents; Ion Transport; Ionophores; Japan; Kinetics; Kluyveromyces; Letrozole; Linear Models; Lipopolysaccharides; Liposomes; Liver; Lung Diseases; Magnesium Hydroxide; Magnetic Resonance Spectroscopy; Male; Membrane Glycoproteins; Membrane Transport Proteins; Mice, Inbred BALB C; Microbial Sensitivity Tests; Microbial Viability; Microscopy, Electron, Transmission; Middle Aged; Mitochondria; Mitochondria, Muscle; Molecular Docking Simulation; Molecular Structure; Muscle, Skeletal; Mutant Proteins; Mutation; Mutation, Missense; Nanocomposites; Nanoparticles; Neoplasm Recurrence, Local; Neoplastic Cells, Circulating; Nucleic Acid Hybridization; Obesity; Occupational Exposure; Oceans and Seas; Odds Ratio; Organometallic Compounds; Osteogenesis; Ovulation Induction; Oxidation-Reduction; Particle Size; Periodontal Ligament; Permeability; Phaseolus; Phenotype; Philippines; Phosphatidylethanolamines; Phospholipids; Photochemical Processes; Phylogeny; Pichia; Pigmentation; Plant Extracts; Polycystic Ovary Syndrome; Polysaccharides; Postprandial Period; Pregnancy; Pregnancy Rate; Prevalence; Product Surveillance, Postmarketing; Progesterone; Progestins; Protein Engineering; Pseudomonas aeruginosa; Psoriasis; Public Facilities; Rats; Rats, Wistar; Receptors, Thyrotropin; Recombinant Proteins; Reproducibility of Results; Republic of Korea; Retrospective Studies; Rhodobacteraceae; Risk; Risk Assessment; Risk Factors; RNA, Ribosomal, 16S; ROC Curve; Saccharomyces cerevisiae; Salinity; Saliva; Seawater; Seaweed; Sensitivity and Specificity; Sequence Analysis, DNA; Sex Factors; Silver Compounds; Smokers; Social Class; Socioeconomic Factors; Soil Microbiology; Solubility; Soy Foods; Spectrometry, Mass, Electrospray Ionization; Spondylitis, Ankylosing; Staphylococcus aureus; Static Electricity; Steroids; Strontium; Sucrose; Surface Properties; Survival Rate; Sweden; Swine; Synapses; Synchrotrons; Tandem Mass Spectrometry; Tannins; Tea; Temperature; Terpenes; Thalidomide; Thermodynamics; Thiadiazoles; Thyroid Cancer, Papillary; Thyroid Neoplasms; Thyroidectomy; Time Factors; Tissue Distribution; Titanium; Toilet Facilities; Tomography, Emission-Computed, Single-Photon; Treatment Outcome; Ubiquinone; Urinary Tract Infections; Vaginal Creams, Foams, and Jellies; Venezuela; Vitamin K 2; Waist Circumference; Waste Disposal, Fluid; Wastewater; Water Microbiology; Water Pollutants, Chemical; Whole Body Imaging; X-Ray Diffraction; Young Adult; Ytterbium; Yttrium; Yttrium Radioisotopes; Zinc Compounds | 2018 |
276 other study(ies) available for o(6)-benzylguanine and guanine
Article | Year |
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Enhancement of nitrosourea activity in medulloblastoma and glioblastoma multiforme.
Topics: Animals; Carmustine; Drug Resistance; Female; Glioblastoma; Guanine; Humans; Male; Medulloblastoma; Methyltransferases; Mice; Mice, Inbred BALB C; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase; Streptozocin; Transplantation, Heterologous | 1992 |
O6-alkylguanine DNA-alkyltransferase is not a major determinant of sensitivity to 1,3-bis(2-chloroethyl)-1-nitrosourea in four medulloblastoma cell lines.
Topics: Carmustine; Cell Survival; Cerebellar Neoplasms; Drug Resistance; Guanine; Humans; Medulloblastoma; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Tumor Cells, Cultured | 1992 |
Depletion of O6-alkylguanine-DNA alkyltransferase by O6-benzylguanine in three-dimensional collagen cultures of normal human breast epithelial cells.
Topics: Animals; Base Sequence; Breast; Cell Transformation, Neoplastic; Cells, Cultured; Collagen; Culture Media; Epithelial Cells; Epithelium; Female; Guanine; Humans; Menopause; Methyltransferases; Mice; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Rats | 1992 |
Modulation of ethylnitrosourea-induced toxicity and mutagenicity in human cells by O6-benzylguanine.
Topics: Alkylation; Cell Line, Transformed; Cell Survival; DNA Repair; Ethylnitrosourea; Guanine; Humans; Lymphocytes; Methyltransferases; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Phenotype | 1992 |
Effect of O6-benzylguanine analogues on sensitivity of human tumor cells to the cytotoxic effects of alkylating agents.
Topics: Alkylating Agents; Antineoplastic Agents; Carmustine; Cell Survival; Cisplatin; Cyclophosphamide; DNA; DNA Damage; Drug Synergism; Guanine; Humans; In Vitro Techniques; Lomustine; Mesylates; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Streptozocin; Tumor Cells, Cultured | 1991 |
Effect of O6-benzylguanine on the sensitivity of human tumor xenografts to 1,3-bis(2-chloroethyl)-1-nitrosourea and on DNA interstrand cross-link formation.
Topics: Animals; Carmustine; Colonic Neoplasms; DNA; DNA, Neoplasm; DNA, Single-Stranded; Drug Resistance; Drug Screening Assays, Antitumor; Drug Synergism; Female; Guanine; Humans; Lomustine; Mice; Mice, Nude; Transplantation, Heterologous; Tumor Cells, Cultured | 1992 |
Comparison of the inactivation of mammalian and bacterial O6-alkylguanine-DNA alkyltransferases by O6-benzylguanine and O6-methylguanine.
Topics: Animals; Bacterial Proteins; CHO Cells; Cricetinae; DNA; Enzyme Activation; Escherichia coli Proteins; Guanine; Humans; Methyltransferases; Mice; Mice, Inbred C57BL; Mice, Transgenic; O(6)-Methylguanine-DNA Methyltransferase; Transcription Factors; Transfection | 1991 |
Use of antibodies to human O6-alkylguanine-DNA alkyltransferase to study the content of this protein in cells treated with O6-benzylguanine or N-methyl-N'-nitro-N-nitrosoguanidine.
Topics: Amino Acid Sequence; Antibodies; Blotting, Western; Cell-Free System; Electrophoresis, Polyacrylamide Gel; Guanine; Humans; Methylnitronitrosoguanidine; Methyltransferases; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Tumor Cells, Cultured | 1991 |
Depletion of mammalian O6-alkylguanine-DNA alkyltransferase activity by O6-benzylguanine provides a means to evaluate the role of this protein in protection against carcinogenic and therapeutic alkylating agents.
Topics: Antineoplastic Agents; Cell Line; Cell Survival; Drug Synergism; Guanine; Humans; Kidney; Kinetics; Liver; Lomustine; Magnetic Resonance Spectroscopy; Mass Spectrometry; Mesylates; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Structure-Activity Relationship; Tumor Cells, Cultured | 1990 |
Modulation of mammalian O6-alkylguanine-DNA alkyltransferase in vivo by O6-benzylguanine and its effect on the sensitivity of a human glioma tumor to 1-(2-chloroethyl)-3-(4-methylcyclohexyl)-1-nitrosourea.
Topics: Animals; Brain Neoplasms; Cricetinae; Dose-Response Relationship, Drug; Female; Glioma; Guanine; Humans; Kidney; Liver; Male; Methyltransferases; Mice; Mice, Inbred Strains; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase; Semustine; Tissue Distribution; Tissue Extracts; Transplantation, Heterologous; Tumor Cells, Cultured | 1990 |
Increased killing of prostate, breast, colon, and lung tumor cells by the combination of inactivators of O6-alkylguanine-DNA alkyltransferase and N,N'-bis(2-chloroethyl)-N-nitrosourea.
Topics: Antineoplastic Agents, Alkylating; Carmustine; Cell Death; Drug Resistance; Drug Therapy, Combination; Enzyme Inhibitors; Guanine; Humans; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Tumor Cells, Cultured | 1995 |
Human liver oxidative metabolism of O6-benzylguanine.
Topics: Carcinoma, Hepatocellular; Cytochrome P-450 Enzyme System; Cytosol; Guanine; Humans; Isoenzymes; Kinetics; Liver Neoplasms; Microsomes, Liver; Oxidation-Reduction; Tumor Cells, Cultured | 1995 |
Plasma and cerebrospinal fluid pharmacokinetics of O6-benzylguanine and time course of peripheral blood mononuclear cell O6-methylguanine-DNA methyltransferase inhibition in the nonhuman primate.
Topics: Animals; DNA Repair; Enzyme Inhibitors; Guanine; Leukocytes, Mononuclear; Macaca mulatta; Male; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Time Factors | 1995 |
Modulation of nitrosourea toxicity in rodent embryonic cells by O6-benzylguanine, a depletor of O6-methylguanine-DNA methyltransferase.
Topics: Animals; Cell Differentiation; Cells, Cultured; DNA Adducts; Ethylnitrosourea; Female; Guanine; Mesencephalon; Methylnitrosourea; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Pregnancy; Rats; Rats, Sprague-Dawley | 1995 |
Mutations in the Ada O6-alkylguanine-DNA alkyltransferase conferring sensitivity to inactivation by O6-benzylguanine and 2,4-diamino-6-benzyloxy-5-nitrosopyrimidine.
Topics: Amino Acid Sequence; Bacterial Proteins; Base Sequence; Binding Sites; Escherichia coli Proteins; Guanine; Methyltransferases; Molecular Sequence Data; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Structure-Activity Relationship; Transcription Factors | 1995 |
Sensitization of human colon tumour cell lines to carmustine by depletion of O6-alkylguanine-DNA alkyltransferase.
Topics: Carmustine; Colonic Neoplasms; Drug Resistance; Drug Screening Assays, Antitumor; Guanine; Humans; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Streptozocin; Time Factors; Tumor Cells, Cultured | 1995 |
Alteration of arginine-128 to alanine abolishes the ability of human O6-alkylguanine-DNA alkyltransferase to repair methylated DNA but has no effect on its reaction with O6-benzylguanine.
Topics: Alanine; Animals; Arginine; Base Sequence; Cattle; DNA; DNA Repair; DNA-Binding Proteins; Guanine; Humans; Methylation; Methyltransferases; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase | 1995 |
Activity of temozolomide in the treatment of central nervous system tumor xenografts.
Topics: Animals; Carmustine; Central Nervous System Neoplasms; Dacarbazine; Female; Guanine; Humans; Male; Methyltransferases; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase; Procarbazine; Temozolomide; Transplantation, Heterologous | 1995 |
Anti-neoplastic activity of sequenced administration of O6-benzylguanine, streptozotocin, and 1,3-bis(2-chloroethyl)-1-nitrosourea in vitro and in vivo.
Topics: Animals; Antineoplastic Combined Chemotherapy Protocols; Carmustine; Glioblastoma; Guanine; Humans; Methyltransferases; Mice; Mice, Nude; O(6)-Methylguanine-DNA Methyltransferase; Streptozocin; Transplantation, Heterologous; Tumor Cells, Cultured; Tumor Stem Cell Assay | 1994 |
Inhibition of O6-alkylguanine-DNA alkyltransferase in animal and human ovarian tumor cell lines by O6-benzylguanine and sensitization to BCNU.
Topics: Animals; Antineoplastic Combined Chemotherapy Protocols; Carmustine; Cisplatin; Cystadenocarcinoma, Serous; Drug Resistance; Female; Guanine; Humans; Methyltransferases; Middle Aged; O(6)-Methylguanine-DNA Methyltransferase; Ovarian Neoplasms; Rats; Tumor Cells, Cultured | 1995 |
O6-benzylguanine increases the sensitivity of human primary bone marrow cells to the cytotoxic effects of temozolomide.
Topics: Alkylating Agents; Antineoplastic Agents; Bone Marrow; Bone Marrow Cells; Cells, Cultured; Colony-Forming Units Assay; Dacarbazine; Granulocytes; Guanine; Humans; Macrophages; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide | 1995 |
Potential of O6-methylguanine or O6-benzylguanine in the enhancement of chloroethylnitrosourea cytotoxicity on brain tumours.
Topics: Animals; Antibodies, Monoclonal; Antineoplastic Agents; Basal Ganglia; Brain Neoplasms; Cell Count; Cell Division; Culture Techniques; DNA Repair; DNA, Neoplasm; Drug Synergism; Glioma; Guanine; Male; Nimustine; Rats; Rats, Wistar | 1994 |
Metabolism of O6-benzylguanine, an inactivator of O6-alkylguanine-DNA alkyltransferase.
Topics: Animals; Guanine; Liver; Male; Methyltransferases; Mice; Mice, Inbred BALB C; O(6)-Methylguanine-DNA Methyltransferase; Rats; Rats, Sprague-Dawley; Tissue Distribution | 1994 |
Degradation of O6-benzylguanine in aqueous polyethylene glycol 400 (PEG 400) solutions: concerns with formaldehyde in PEG 400.
Topics: Chromatography, High Pressure Liquid; Colorimetry; Drug Stability; Formaldehyde; Guanine; Magnetic Resonance Spectroscopy; Mass Spectrometry; Polyethylene Glycols; Solubility; Water | 1994 |
Mutations in human O6-alkylguanine-DNA alkyltransferase imparting resistance to O6-benzylguanine.
Topics: Amino Acid Sequence; Base Sequence; Binding Sites; DNA; Drug Resistance; Guanine; Humans; Methyltransferases; Molecular Sequence Data; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Structure-Activity Relationship | 1994 |
Biodistribution of O6-benzylguanine and its effectiveness against human brain tumor xenografts when given in polyethylene glycol or cremophor-EL.
Topics: Adjuvants, Pharmaceutic; Animals; Antineoplastic Agents; Carmustine; Child; Chromatography, High Pressure Liquid; Female; Glioblastoma; Glycerol; Guanine; Humans; Injections, Intraperitoneal; Male; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Transplantation; Polyethylene Glycols; Solubility; Tissue Distribution | 1994 |
Activation of human O6-alkylguanine-DNA alkyltransferase by DNA.
Topics: Animals; Base Sequence; Cattle; DNA; Enzyme Activation; Guanine; Humans; Methyltransferases; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Oligodeoxyribonucleotides; Recombinant Proteins; Repetitive Sequences, Nucleic Acid; Sodium Chloride; Structure-Activity Relationship | 1994 |
Extended depletion of O6-methylguanine-DNA methyltransferase activity following O6-benzyl-2'-deoxyguanosine or O6-benzylguanine combined with streptozotocin treatment enhances 1,3-bis(2-chloroethyl)-1-nitrosourea cytotoxicity.
Topics: Antineoplastic Agents; Carmustine; Deoxyguanosine; Drug Resistance; Drug Screening Assays, Antitumor; Drug Synergism; Guanine; Humans; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Streptozocin; Tumor Cells, Cultured; Tumor Stem Cell Assay | 1994 |
Response of repair-competent and repair-deficient Escherichia coli to three O6-substituted guanines and involvement of methyl-directed mismatch repair in the processing of O6-methylguanine residues.
Topics: Base Sequence; Codon; DNA Repair; DNA Replication; Escherichia coli; Genes, Bacterial; Guanine; Methyltransferases; Models, Genetic; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Plasmids | 1994 |
Combined depletion of O6-alkylguanine-DNA alkyltransferase and glutathione to modulate nitrosourea resistance in breast cancer.
Topics: Breast Neoplasms; Carmustine; Cell Line; Cell Survival; Drug Resistance; Ethylnitrosourea; Glutathione; Glutathione Transferase; Guanine; Humans; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase | 1994 |
Enhancing effect of O6-alkylguanine derivatives on chloroethylnitrosourea cytotoxicity toward tumor cells.
Topics: Animals; Brain Neoplasms; Cell Survival; Drug Synergism; Guanine; HeLa Cells; Humans; Nimustine; Rats; Structure-Activity Relationship; Tumor Cells, Cultured | 1994 |
Differential inactivation of mammalian and Escherichia coli O6-alkylguanine-DNA alkyltransferases by O6-benzylguanine.
Topics: Animals; Base Sequence; Cells, Cultured; Cricetinae; Cricetulus; Escherichia coli; Guanine; Humans; Methyltransferases; Mice; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Oligodeoxyribonucleotides; Rats | 1994 |
Effects of inhibition of O6-alkylguanine-DNA alkyltransferase in rats on carcinogenesis by methylnitrosourea and ethylnitrosourea.
Topics: Animals; Anticarcinogenic Agents; Antineoplastic Agents; Ethylnitrosourea; Female; Guanine; Liver; Methylnitrosourea; Methyltransferases; Neoplasms, Experimental; O(6)-Methylguanine-DNA Methyltransferase; Rats; Rats, Inbred F344 | 1994 |
Mechanism of inactivation of human O6-alkylguanine-DNA alkyltransferase by O6-benzylguanine.
Topics: Animals; Base Sequence; Binding Sites; Cysteine; DNA Primers; Escherichia coli; Guanine; Humans; Methyltransferases; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Proteins; Species Specificity | 1993 |
Chemical characteristics of complexes of O6,9-dimethylguanine with cis-platin and debenzylation rates of O6-benzylguanines.
Topics: Alkylation; Chromatography, High Pressure Liquid; Guanine; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Organoplatinum Compounds; Spectrophotometry, Ultraviolet; Substrate Specificity | 1993 |
Treatment of subcutaneous and intracranial brain tumor xenografts with O6-benzylguanine and 1,3-bis(2-chloroethyl)-1-nitrosourea.
Topics: Animals; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Carmustine; Drug Synergism; Guanine; Humans; Medulloblastoma; Methyltransferases; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase; Time Factors | 1993 |
The effects of O6-benzylguanine and hypoxia on the cytotoxicity of 1,3-bis(2-chloroethyl)-1-nitrosourea in nitrosourea-resistant SF-763 cells.
Topics: Biogenic Polyamines; Brain Neoplasms; Carmustine; Cell Hypoxia; Combined Modality Therapy; Drug Resistance; Guanine; Humans; Ornithine Decarboxylase; Tumor Cells, Cultured | 1993 |
Substituted O6-benzylguanine derivatives and their inactivation of human O6-alkylguanine-DNA alkyltransferase.
Topics: Colonic Neoplasms; Guanine; Humans; Methyltransferases; Molecular Structure; O(6)-Methylguanine-DNA Methyltransferase; Structure-Activity Relationship; Tumor Cells, Cultured | 1994 |
Effect of O6-benzylguanine on the sensitivity of human colon tumor xenografts to 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU).
Topics: Animals; Carmustine; Cell Division; Colonic Neoplasms; Drug Synergism; Female; Guanine; Humans; Methyltransferases; Mice; Mice, Nude; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase | 1993 |
Repair of O6-methylguanine and O4-methylthymidine in F344 rat liver following treatment with 1,2-dimethylhydrazine and O6-benzylguanine.
Topics: 1,2-Dimethylhydrazine; Animals; Carcinogens; Dimethylhydrazines; DNA; DNA Repair; Guanine; Male; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Rats; Rats, Inbred F344; Thymidine | 1993 |
Prolonged depletion of O6-methylguanine DNA methyltransferase activity following exposure to O6-benzylguanine with or without streptozotocin enhances 1,3-bis(2-chloroethyl)-1-nitrosourea sensitivity in vitro.
Topics: Carmustine; Cell Survival; Dose-Response Relationship, Drug; Drug Resistance; Guanine; Humans; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; RNA, Messenger; Streptozocin; Tumor Cells, Cultured | 1993 |
A single amino acid change in human O6-alkylguanine-DNA alkyltransferase decreasing sensitivity to inactivation by O6-benzylguanine.
Topics: Amino Acid Sequence; Base Sequence; Cell Survival; Escherichia coli; Guanine; Humans; Kinetics; Methylnitronitrosoguanidine; Methyltransferases; Molecular Sequence Data; Mutagenesis, Site-Directed; O(6)-Methylguanine-DNA Methyltransferase; Oligodeoxyribonucleotides; Point Mutation; Recombinant Proteins; Saccharomyces cerevisiae; Substrate Specificity | 1993 |
Synergistic efficacy of O6-benzylguanine and 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) in a human colon cancer xenograft completely resistant to BCNU alone.
Topics: Alkyl and Aryl Transferases; Animals; Antineoplastic Combined Chemotherapy Protocols; Body Weight; Carmustine; Colonic Neoplasms; Drug Resistance; Drug Synergism; Guanine; Humans; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Transplantation; Transferases; Tumor Cells, Cultured | 1993 |
The role of O6-alkylguanine-DNA alkyltransferase in protecting Rat4 cells against the mutagenic effects of O6-substituted guanine residues incorporated in codon 12 of the H-ras gene.
Topics: Base Sequence; Cell Transformation, Neoplastic; Cells, Cultured; Codon; DNA Damage; DNA Repair; Genes, ras; Guanine; Methyltransferases; Molecular Sequence Data; Mutagenesis; O(6)-Methylguanine-DNA Methyltransferase; Plasmids; Transfection | 1993 |
Effect of O6-benzylguanine on the response to 1,3-bis(2-chloroethyl)-1-nitrosourea in the Dunning R3327G model of prostatic cancer.
Topics: Animals; Carmustine; Drug Interactions; Guanine; Kidney; Liver; Male; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Prostatic Neoplasms; Rats; Tumor Cells, Cultured | 1993 |
Depletion of O6-methylguanine-DNA methyltransferase and potentiation of 1,3-bis(2-chloroethyl)-1-nitrosourea antitumor activity by O6-benzylguanine in vitro.
Topics: Antineoplastic Agents; Carmustine; Drug Resistance; Drug Synergism; Guanine; HeLa Cells; Humans; Kinetics; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Time Factors; Tumor Cells, Cultured | 1993 |
Depletion of O6-alkylguanine-DNA alkyltransferase correlates with potentiation of temozolomide and CCNU toxicity in human tumour cells.
Topics: Antineoplastic Agents; Dacarbazine; Drug Screening Assays, Antitumor; Drug Synergism; Guanine; Humans; Lomustine; Methyltransferases; Neoplasms, Experimental; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Tumor Cells, Cultured | 1993 |
Thymidine kinase deficient cells with decreased TTP pools are hypersensitive to DNA alkylating agents.
Topics: Antineoplastic Agents; Antineoplastic Agents, Alkylating; Cell Survival; Ethyl Methanesulfonate; Guanine; HL-60 Cells; Humans; Hypoxanthine Phosphoribosyltransferase; Leukemia, T-Cell; Methylnitronitrosoguanidine; Methyltransferases; Mutagenesis; Mutagens; O(6)-Methylguanine-DNA Methyltransferase; Thymidine Kinase; Thymine Nucleotides; Tumor Cells, Cultured | 1996 |
Ubiquitination-dependent proteolysis of O6-methylguanine-DNA methyltransferase in human and murine tumor cells following inactivation with O6-benzylguanine or 1,3-bis(2-chloroethyl)-1-nitrosourea.
Topics: Adenosine Triphosphate; Animals; Blotting, Western; Carmustine; Chromatography, Affinity; Energy Metabolism; Guanine; Humans; Kinetics; Magnesium; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Precipitin Tests; Rats; Tumor Cells, Cultured; Ubiquitins | 1996 |
Potentiation of temozolomide and BCNU cytotoxicity by O(6)-benzylguanine: a comparative study in vitro.
Topics: Antineoplastic Agents; Antineoplastic Agents, Alkylating; Carmustine; Cell Line; Dacarbazine; Dose-Response Relationship, Drug; Drug Synergism; Guanine; Humans; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Tumor Cells, Cultured | 1996 |
Point mutations in human O6-alkylguanine-DNA alkyltransferase prevent the sensitization by O6-benzylguanine to killing by N,N'-bis (2-chloroethyl)-N-nitrosourea.
Topics: Animals; Antineoplastic Agents; Base Sequence; Carmustine; Cell Survival; CHO Cells; Cricetinae; Drug Resistance; Guanine; Humans; Methyltransferases; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Point Mutation; Transfection | 1996 |
Intracellular Localization and intercellular heterogeneity of the human DNA repair protein O(6)-methylguanine-DNA methyltransferase.
Topics: Animals; Cell Compartmentation; Cell Nucleus; Cytoplasm; Dacarbazine; DNA Repair; Enzyme Inhibitors; Fluorescent Antibody Technique, Indirect; Guanine; Humans; Image Processing, Computer-Assisted; Lung Neoplasms; Melanoma; Methyltransferases; Mice; Mice, Nude; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Transplantation, Heterologous | 1996 |
Differential sensitivity of human and mouse alkyltransferase to O6-benzylguanine using a transgenic model.
Topics: Animals; Antineoplastic Agents; Base Sequence; Carmustine; CHO Cells; Cricetinae; DNA Primers; Genetic Vectors; Guanine; Humans; Liver; Methyltransferases; Mice; Mice, Nude; Mice, Transgenic; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Polymerase Chain Reaction; Recombinant Fusion Proteins; Transfection | 1996 |
O6-benzylguanine enhances the sensitivity of a glioma xenograft with low O6-alkylguanine-DNA alkyltransferase activity to temozolomide and BCNU.
Topics: Animals; Antineoplastic Agents; Astrocytoma; Body Weight; Carmustine; Cell Division; Cell Line; Dacarbazine; Glioblastoma; Guanine; Humans; Kinetics; Methyltransferases; Mice; Mice, Nude; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Time Factors; Transplantation, Heterologous; Tumor Cells, Cultured | 1996 |
O6-ethylguanine and O6-benzylguanine incorporated site-specifically in codon 12 of the rat H-ras gene induce semi-targeted as well as targeted mutations in Rat4 cells.
Topics: Animals; Base Sequence; Cell Line; Cell Line, Transformed; Clone Cells; Codon; DNA; Genes, ras; Guanine; Molecular Sequence Data; Mutation; Rats | 1996 |
Enhancement of melphalan activity by inhibition of DNA polymerase-alpha and DNA polymerase-beta.
Topics: Animals; Antineoplastic Agents; Antineoplastic Agents, Alkylating; Aphidicolin; Carmustine; DNA Polymerase I; DNA Polymerase II; Drug Synergism; Enzyme Inhibitors; Female; Guanine; Humans; Male; Melphalan; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Transplantation; Rhabdomyosarcoma; Zalcitabine | 1996 |
Pharmacokinetics of O6-benzylguanine in rats and its metabolism by rat liver microsomes.
Topics: Animals; Antineoplastic Agents; Biotransformation; Cytosol; Guanine; Half-Life; In Vitro Techniques; Injections, Intravenous; Male; Microsomes, Liver; Phenobarbital; Protein Binding; Rats; Rats, Sprague-Dawley; Tissue Distribution | 1995 |
Human CD34+ hematopoietic progenitors have low, cytokine-unresponsive O6-alkylguanine-DNA alkyltransferase and are sensitive to O6-benzylguanine plus BCNU.
Topics: Adult; Antigens, CD34; Antineoplastic Agents; Antineoplastic Agents, Alkylating; Bone Marrow Cells; Carmustine; Cells, Cultured; Colony-Forming Units Assay; Culture Media, Conditioned; DNA Damage; DNA Repair; Drug Resistance; Drug Synergism; Enzyme Inhibitors; Erythropoietin; Granulocyte-Macrophage Colony-Stimulating Factor; Guanine; Hematopoietic Stem Cells; Humans; Interleukin-3; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Proteins; Stem Cell Factor | 1996 |
Determination of O6-benzylguanine in human plasma by reversed-phase high-performance liquid chromatography.
Topics: Acetonitriles; Antineoplastic Agents; Buffers; Chromatography, High Pressure Liquid; Guanine; Humans; Hydrogen-Ion Concentration; Methanol; Phosphates; Quality Control | 1996 |
Conformational change in human DNA repair enzyme O6-methylguanine-DNA methyltransferase upon alkylation of its active site by SN1 (indirect-acting) and SN2 (direct-acting) alkylating agents: breaking a "salt-link".
Topics: Alkylating Agents; Amino Acid Sequence; Antibodies, Monoclonal; Binding Sites; Blotting, Western; Cells, Cultured; Cysteine; DNA Repair; Epitope Mapping; Guanine; Humans; Hydrocarbons, Iodinated; Methyltransferases; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Point Mutation; Precipitin Tests; Protein Conformation; Recombinant Fusion Proteins; Serine Endopeptidases | 1996 |
Cytotoxicity of fluoroethylating agents is potentiated by O6-benzylguanine.
Topics: Antineoplastic Agents; Antineoplastic Agents, Alkylating; Carmustine; Cell Survival; Drug Synergism; Guanine; HeLa Cells; Humans; Iodoacetamide; Lomustine; Nimustine | 1996 |
3-aminobenzamide and/or O6-benzylguanine evaluated as an adjuvant to temozolomide or BCNU treatment in cell lines of variable mismatch repair status and O6-alkylguanine-DNA alkyltransferase activity.
Topics: Antineoplastic Agents, Alkylating; Benzamides; Carmustine; Dacarbazine; DNA Repair; Drug Screening Assays, Antitumor; Drug Synergism; Enzyme Inhibitors; Guanine; Humans; Neoplasms; Temozolomide; Tumor Cells, Cultured | 1996 |
In vitro inactivation of human O6-alkylguanine DNA alkyltransferase by antitumor triazene compounds.
Topics: Animals; Antineoplastic Agents, Alkylating; Dacarbazine; DNA; Drug Resistance; Guanine; Humans; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Proteins; Spodoptera; Temozolomide; Triazenes; Tumor Cells, Cultured | 1996 |
O6-methylguanine induces intrachromosomal homologous recombination in human cells.
Topics: Cells, Cultured; Cinnamates; DNA Adducts; Gene Conversion; Guanine; Humans; Hygromycin B; Methylnitronitrosoguanidine; Recombination, Genetic; Thymidine Kinase | 1996 |
Protection of mammalian cells against chloroethylating agent toxicity by an O6-benzylguanine-resistant mutant of human O6-alkylguanine-DNA alkyltransferase.
Topics: Animals; Antineoplastic Agents, Alkylating; Cell Line; Cricetinae; Cricetulus; DNA Repair; Drug Resistance; Escherichia coli; Guanine; Humans; Mammals; Methyltransferases; Mutagenesis, Site-Directed; Nitrogen Mustard Compounds; O(6)-Methylguanine-DNA Methyltransferase | 1996 |
Retroviral transduction of a mutant methylguanine DNA methyltransferase gene into human CD34 cells confers resistance to O6-benzylguanine plus 1,3-bis(2-chloroethyl)-1-nitrosourea.
Topics: Animals; Antigens, CD34; Antineoplastic Agents; Carmustine; Cell Line; Cell Survival; CHO Cells; Cricetinae; DNA Primers; Dose-Response Relationship, Drug; Drug Resistance; Guanine; Humans; Leukemia, Erythroblastic, Acute; Methyltransferases; Mutagenesis; O(6)-Methylguanine-DNA Methyltransferase; Polymerase Chain Reaction; Recombinant Proteins; Transfection | 1996 |
Mismatch repair mutations override alkyltransferase in conferring resistance to temozolomide but not to 1,3-bis(2-chloroethyl)nitrosourea.
Topics: Antineoplastic Agents, Alkylating; Carmustine; Colonic Neoplasms; Dacarbazine; DNA Adducts; DNA Damage; DNA Repair; Drug Resistance, Neoplasm; Enzyme Inhibitors; Guanine; Humans; Methylation; Methyltransferases; Microsatellite Repeats; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Phenotype; Temozolomide; Tumor Cells, Cultured; Tumor Stem Cell Assay | 1996 |
Resistance of the human O6-alkylguanine-DNA alkyltransferase containing arginine at codon 160 to inactivation by O6-benzylguanine.
Topics: Arginine; Codon; DNA; Escherichia coli; Guanine; Humans; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Point Mutation | 1996 |
Intraarterial O6-benzylguanine enables the specific therapy of nitrosourea-resistant intracranial human glioma xenografts in athymic rats with 1,3-bis(2-chloroethyl)-1-nitrosourea.
Topics: Alkyl and Aryl Transferases; Animals; Antineoplastic Agents, Alkylating; Brain Neoplasms; Carmustine; DNA Repair; Drug Resistance, Neoplasm; Glioblastoma; Guanine; Humans; Injections, Intra-Arterial; Rats; Rats, Nude; Transferases; Transplantation, Heterologous | 1997 |
Mismatch repair provokes chromosome aberrations in hamster cells treated with methylating agents or 6-thioguanine, but not with ethylating agents.
Topics: Alkylating Agents; Animals; Cell Division; CHO Cells; Chromosome Aberrations; Cricetinae; DNA Repair; Enzyme Inhibitors; Guanine; Methylnitronitrosoguanidine; Methylnitrosourea; Thioguanine | 1997 |
O6-benzylguanine potentiates the in vivo toxicity and clastogenicity of temozolomide and BCNU in mouse bone marrow.
Topics: Animals; Antineoplastic Agents; Bone Marrow; Bone Marrow Cells; Carmustine; Cell Division; Dacarbazine; Drug Synergism; Female; Guanine; Hematopoietic Stem Cells; Male; Mice; Temozolomide | 1997 |
Repair of O6-benzylguanine by the Escherichia coli Ada and Ogt and the human O6-alkylguanine-DNA alkyltransferases.
Topics: Amino Acid Sequence; Bacterial Proteins; Chromatography, High Pressure Liquid; DNA Repair; Escherichia coli; Escherichia coli Proteins; Guanine; Humans; Methyltransferases; Molecular Sequence Data; Mutagenesis, Site-Directed; O(6)-Methylguanine-DNA Methyltransferase; Peptide Fragments; Sodium Chloride | 1997 |
Role of O6-methylguanine-DNA methyltransferase, glutathione transferase M3-3 and glutathione in resistance to carmustine in a human non-small cell lung cancer cell line.
Topics: Antineoplastic Agents, Alkylating; Carcinoma, Non-Small-Cell Lung; Carmustine; Dose-Response Relationship, Drug; Drug Resistance, Neoplasm; Glutathione; Glutathione Transferase; Guanine; Humans; Lung Neoplasms; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Tumor Cells, Cultured | 1997 |
Creation of human alkyltransferases resistant to O6-benzylguanine.
Topics: Binding Sites; Carcinogens; Drug Resistance; Enzyme Inhibitors; Escherichia coli; Guanine; Humans; Methylnitronitrosoguanidine; Methyltransferases; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Transformation, Genetic | 1997 |
[Study on potentiation of nitrosourea-cytotoxicity by DNA repair enzyme inhibitors in human brain tumor cells].
Topics: Antineoplastic Agents; Antineoplastic Agents, Alkylating; Brain Neoplasms; Cell Survival; Drug Resistance, Neoplasm; Drug Synergism; Glioma; Guanine; Humans; Methyltransferases; Nimustine; O(6)-Methylguanine-DNA Methyltransferase; Structure-Activity Relationship; Tumor Cells, Cultured | 1997 |
Effect of single and multiple administration of an O6-benzylguanine/temozolomide combination: an evaluation in a human melanoma xenograft model.
Topics: Animals; Antineoplastic Agents; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Dacarbazine; Drug Administration Schedule; Guanine; Humans; Melanoma, Experimental; Methyltransferases; Mice; Mice, Nude; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Tumor Cells, Cultured | 1997 |
Effect of DNA on the inactivation of O6-alkylguanine-DNA alkyltransferase by 9-substituted O6-benzylguanine derivatives.
Topics: Animals; Antineoplastic Agents; Binding, Competitive; Cell Line; DNA; Enzyme Inhibitors; Guanine; Hemocyanins; Humans; Methyltransferases; O(6)-Methylguanine-DNA Methyltransferase; Protein Binding | 1997 |
O6-methylguanine-DNA methyltransferase (MGMT) transfectants of a 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU)-sensitive colon cancer cell line selectively repopulate heterogenous MGMT+/MGMT- xenografts after BCNU and O6-benzylguanine plus BCNU.
Topics: Animals; Antineoplastic Agents; Carmustine; Colonic Neoplasms; DNA Repair; Drug Resistance, Neoplasm; Female; Guanine; Humans; Mice; Mice, Nude; Neoplasm Proteins; O(6)-Methylguanine-DNA Methyltransferase; Transfection; Transplantation, Heterologous; Tumor Cells, Cultured | 1997 |
The potential role of glycine-160 of human O6-alkylguanine-DNA alkyltransferase in reaction with O6-benzylguanine as determined by site-directed mutagenesis and molecular modelling comparisons.
Topics: Amino Acid Substitution; Bacterial Proteins; Binding Sites; Calorimetry; Escherichia coli; Escherichia coli Proteins; Glycine; Guanine; Humans; Kinetics; Models, Molecular; Mutagenesis, Site-Directed; O(6)-Methylguanine-DNA Methyltransferase; Protein Conformation; Recombinant Proteins; Thermodynamics; Transcription Factors | 1997 |
Selection for G156A O6-methylguanine DNA methyltransferase gene-transduced hematopoietic progenitors and protection from lethality in mice treated with O6-benzylguanine and 1,3-bis(2-chloroethyl)-1-nitrosourea.
Topics: Animals; Antineoplastic Agents; Carmustine; Cell Survival; Drug Resistance, Neoplasm; Genetic Vectors; Guanine; Hematopoietic Stem Cell Transplantation; Hematopoietic Stem Cells; Male; Mice; Mice, Inbred C3H; O(6)-Methylguanine-DNA Methyltransferase; Retroviridae; Transfection | 1997 |
Substrate specificity of human O6-methylguanine-DNA methyltransferase for O6-benzylguanine derivatives in oligodeoxynucleotides.
Topics: Antineoplastic Agents; DNA; Guanine; Humans; Magnetic Resonance Spectroscopy; O(6)-Methylguanine-DNA Methyltransferase; Oligonucleotides; Substrate Specificity | 1997 |
N-(2-chloroethyl)-N'-cyclohexyl-N-nitrosourea sensitivity in mismatch repair-defective human cells.
Topics: Animals; Antineoplastic Agents; CHO Cells; Cricetinae; DNA Repair; Guanine; HeLa Cells; Humans; Lomustine; Methylation; O(6)-Methylguanine-DNA Methyltransferase | 1998 |
Genetic predisposition to the metabolism of irinotecan (CPT-11). Role of uridine diphosphate glucuronosyltransferase isoform 1A1 in the glucuronidation of its active metabolite (SN-38) in human liver microsomes.
Topics: Animals; Antineoplastic Agents, Phytogenic; Bilirubin; Camptothecin; Causality; Crigler-Najjar Syndrome; Glucuronosyltransferase; Guanine; Humans; Irinotecan; Isoenzymes; Microsomes, Liver; Nitrophenols; Oxidation-Reduction; Rats; Rats, Sprague-Dawley; Uridine Diphosphate; Zidovudine | 1998 |
Heterogeneity of O6-alkylguanine-DNA-alkyltransferase measured by flow cytometric analysis in blood and bone marrow mononuclear cells.
Topics: Animals; Antibodies, Monoclonal; Blotting, Western; Bone Marrow Cells; Cell Membrane Permeability; Cell Separation; CHO Cells; Cricetinae; Enzyme Activation; Flow Cytometry; Guanine; Humans; O(6)-Methylguanine-DNA Methyltransferase; Sensitivity and Specificity | 1998 |
Reaction of O6-benzylguanine-resistant mutants of human O6-alkylguanine-DNA alkyltransferase with O6-benzylguanine in oligodeoxyribonucleotides.
Topics: Amino Acid Sequence; Amino Acid Substitution; Binding Sites; Guanine; Humans; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Oligodeoxyribonucleotides; Point Mutation | 1998 |
Role of wild-type p53 on the antineoplastic activity of temozolomide alone or combined with inhibitors of poly(ADP-ribose) polymerase.
Topics: Antineoplastic Agents, Alkylating; Apoptosis; Benzamides; Dacarbazine; Enzyme Inhibitors; Guanine; HL-60 Cells; Humans; O(6)-Methylguanine-DNA Methyltransferase; Poly(ADP-ribose) Polymerase Inhibitors; Temozolomide; Tumor Suppressor Protein p53 | 1998 |
Isolation of human O6-alkylguanine-DNA alkyltransferase mutants highly resistant to inactivation by O6-benzylguanine.
Topics: Colony Count, Microbial; DNA Primers; DNA, Bacterial; Drug Resistance, Microbial; Enzyme Inhibitors; Escherichia coli; Genes, Bacterial; Genomic Library; Guanine; Humans; Mutagenesis, Site-Directed; O(6)-Methylguanine-DNA Methyltransferase; Oligonucleotides, Antisense; Plasmids; Point Mutation | 1998 |
O6-alkylguanine-DNA alkyltransferase inactivation by ester prodrugs of O6-benzylguanine derivatives and their rate of hydrolysis by cellular esterases.
Topics: Animals; Carboxylic Ester Hydrolases; Cells, Cultured; Enzyme Inhibitors; Esters; Guanine; Humans; Hydrolysis; Molecular Structure; O(6)-Methylguanine-DNA Methyltransferase; Prodrugs; Swine; Tumor Cells, Cultured | 1998 |
Modulation of O6-alkylating agent induced clastogenicity by enhanced DNA repair capacity of bone marrow cells.
Topics: Alkyl and Aryl Transferases; Alkylating Agents; Animals; Bone Marrow Cells; Bone Marrow Transplantation; DNA Repair; Drug Synergism; Enzyme Inhibitors; Female; Gene Expression; Guanine; Humans; Male; Mice; Micronucleus Tests; Mutagens; Mutation; Nitrosourea Compounds; Organophosphorus Compounds; Streptozocin | 1998 |
Effects of O6-benzylguanine on growth and differentiation of P19 embryonic carcinoma cells treated with alkylating agents.
Topics: Alkylating Agents; Animals; Antineoplastic Agents; Carcinogens; Carcinoma, Embryonal; Cell Differentiation; Cell Division; Cell Survival; DNA Repair; Ethyl Methanesulfonate; Ethylnitrosourea; Guanine; Mesencephalon; Methyl Methanesulfonate; Methylnitrosourea; Mice; Neurons; O(6)-Methylguanine-DNA Methyltransferase; Rats; Tretinoin; Tumor Cells, Cultured | 1998 |
Investigation of the role of tyrosine-114 in the activity of human O6-alkylguanine-DNA alkyltranferase.
Topics: Alanine; Amino Acid Sequence; DNA Repair; DNA-Binding Proteins; Enzyme Activation; Glutamic Acid; Guanine; Humans; Kinetics; Molecular Sequence Data; Mutagenesis, Site-Directed; O(6)-Methylguanine-DNA Methyltransferase; Oligodeoxyribonucleotides; Phenylalanine; Protein Conformation; Recombinant Proteins; Threonine; Tyrosine | 1998 |
Chemoprotective gene transfer I: transduction of human haemopoietic progenitors with O6-benzylguanine-resistant O6-alkylguanine-DNA alkyltransferase attenuates the toxic effects of O6-alkylating agents in vitro.
Topics: Antigens, CD34; Antineoplastic Agents, Alkylating; Cell Line; Cell Survival; Dacarbazine; Gene Transfer Techniques; Genetic Vectors; Guanine; Hematopoietic Stem Cells; Humans; Nitrogen Mustard Compounds; O(6)-Methylguanine-DNA Methyltransferase; Polymerase Chain Reaction; Retroviridae; Temozolomide | 1998 |
Retroviral transfer of a bacterial alkyltransferase gene (ada) into human bone marrow cells protects against O6-benzylguanine plus 1, 3-bis(2-chloroethyl)-1-nitrosourea cytotoxicity.
Topics: 3T3 Cells; Adolescent; Adult; Alkyl and Aryl Transferases; Animals; Antineoplastic Combined Chemotherapy Protocols; Bone Marrow Cells; Carmustine; Cell Survival; Female; Genetic Vectors; Guanine; Humans; Infant, Newborn; Male; Mice; Protective Agents; Retroviridae; Stem Cells; Transduction, Genetic | 1997 |
Retroviral transfer of a bacterial alkyltransferase gene into murine bone marrow protects against chloroethylnitrosourea cytotoxicity.
Topics: Animals; Antineoplastic Agents, Alkylating; Bacterial Proteins; Bone Marrow; Carmustine; Enzyme Inhibitors; Escherichia coli Proteins; Ethylnitrosourea; Feasibility Studies; Gene Transfer Techniques; Guanine; Mice; Mice, Inbred CBA; O(6)-Methylguanine-DNA Methyltransferase; Retroviridae; Transcription Factors | 1995 |
Role of O6-methylguanine-DNA methyltransferase in resistance of human brain tumor cell lines to the clinically relevant methylating agents temozolomide and streptozotocin.
Topics: Antineoplastic Agents, Alkylating; Brain Neoplasms; Dacarbazine; Drug Resistance, Neoplasm; Guanine; Humans; Methyl Methanesulfonate; Methylation; Methylnitronitrosoguanidine; O(6)-Methylguanine-DNA Methyltransferase; Streptozocin; Temozolomide; Tumor Cells, Cultured | 1996 |
Pharmacokinetics of O6-benzylguanine and its active metabolite 8-oxo-O6-benzylguanine in plasma and cerebrospinal fluid after intrathecal administration of O6-benzylguanine in the nonhuman primate.
Topics: Animals; Antineoplastic Agents; Guanine; Injections, Spinal; Macaca mulatta; Male | 1998 |
Inactivation of O6-alkylguanine-DNA alkyltransferase. 1. Novel O6-(hetarylmethyl)guanines having basic rings in the side chain.
Topics: Enzyme Inhibitors; Guanine; Humans; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Proteins; Tumor Cells, Cultured | 1998 |
Simultaneous protection of G156A methylguanine DNA methyltransferase gene-transduced hematopoietic progenitors and sensitization of tumor cells using O6-benzylguanine and temozolomide.
Topics: Animals; Antineoplastic Agents; Antineoplastic Agents, Alkylating; Carmustine; Colonic Neoplasms; Dacarbazine; Drug Combinations; Drug Resistance, Neoplasm; Guanine; Hematopoietic Stem Cells; Humans; Male; Mice; Mice, Inbred C3H; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Transduction, Genetic; Transfection; Tumor Cells, Cultured | 1999 |
Lack of evidence for a polymorphism at codon 160 of human O6-alkylguanine-DNA alkyltransferase gene in normal tissue and cancer.
Topics: Animals; Antineoplastic Agents; Cattle; Codon; Drug Resistance, Neoplasm; Drug Screening Assays, Antitumor; Guanine; Humans; Mutation; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Polymerase Chain Reaction; Polymorphism, Genetic | 1999 |
Mismatch repair and differential sensitivity of mouse and human cells to methylating agents.
Topics: 3T3 Cells; Alkylating Agents; Animals; Antineoplastic Agents; Apoptosis; Base Pair Mismatch; Chromosomes, Human, Pair 2; DNA Methylation; DNA Repair; DNA-Binding Proteins; Drug Resistance, Neoplasm; Gene Transfer Techniques; Genotype; Guanine; HeLa Cells; Humans; Melanoma, Experimental; Methylnitronitrosoguanidine; Methylnitrosourea; Mice; MutS Homolog 2 Protein; Proto-Oncogene Proteins; Species Specificity; Tumor Cells, Cultured | 1999 |
Msh2 status modulates both apoptosis and mutation frequency in the murine small intestine.
Topics: Animals; Apoptosis; Cells, Cultured; Cisplatin; Dacarbazine; DNA Repair; DNA-Binding Proteins; Guanine; Intestinal Mucosa; Intestine, Small; Methylnitronitrosoguanidine; Mice; Mice, Inbred BALB C; Mice, Inbred Strains; Mice, Knockout; Mutagenesis; Mutagens; MutS Homolog 2 Protein; Proto-Oncogene Proteins; Stem Cells; Temozolomide | 1999 |
Leukocyte O6-alkylguanine-DNA alkyltransferase from human donors is uniformly sensitive to O6-benzylguanine.
Topics: Alkyl and Aryl Transferases; Enzyme Inhibitors; Guanine; Humans; Leukocytes, Mononuclear | 1999 |
Identification and characterisation of the Drosophila melanogaster O6-alkylguanine-DNA alkyltransferase cDNA.
Topics: Amino Acid Sequence; Animals; Bacterial Proteins; Base Sequence; Cloning, Molecular; DNA Repair; DNA, Complementary; Drosophila melanogaster; Enzyme Inhibitors; Escherichia coli; Escherichia coli Proteins; Gene Deletion; Guanine; Humans; Methylnitronitrosoguanidine; Methyltransferases; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Phenotype; Thymine; Transcription Factors | 1999 |
Influence of O6-benzylguanine on the anti-tumour activity and normal tissue toxicity of 1,3-bis(2-chloroethyl)-1-nitrosourea and molecular combinations of 5-fluorouracil and 2-chloroethyl-1-nitrosourea in mice.
Topics: Animals; Antineoplastic Agents, Alkylating; Carmustine; Colony-Forming Units Assay; Drug Combinations; Drug Resistance, Neoplasm; Enzyme Inhibitors; Ethylnitrosourea; Fluorouracil; Guanine; Humans; Male; Mice; Mice, Nude; O(6)-Methylguanine-DNA Methyltransferase; Tumor Stem Cell Assay | 1999 |
Alteration of the conserved residue tyrosine-158 to histidine renders human O6-alkylguanine-DNA alkyltransferase insensitive to the inhibitor O6-benzylguanine.
Topics: Enzyme Inhibitors; Guanine; Histidine; Humans; Mutagenesis, Site-Directed; O(6)-Methylguanine-DNA Methyltransferase; Structure-Activity Relationship; Tyrosine | 1999 |
DeltaMGMT-transduced bone marrow infusion increases tolerance to O6-benzylguanine and 1,3-bis(2-chloroethyl)-1-nitrosourea and allows intensive therapy of 1,3-bis(2-chloroethyl)-1-nitrosourea-resistant human colon cancer xenografts.
Topics: Animals; Antineoplastic Agents, Alkylating; Bone Marrow Transplantation; Carmustine; Cell Division; Colonic Neoplasms; Combined Modality Therapy; Drug Resistance, Neoplasm; Genetic Vectors; Guanine; Humans; Mice; Mice, Nude; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase; Retroviridae; Transduction, Genetic | 1999 |
Protection of CHO cells by mutant forms of O6-alkylguanine-DNA alkyltransferase from killing by 1,3-bis-(2-chloroethyl)-1-nitrosourea (BCNU) plus O6-benzylguanine or O6-benzyl-8-oxoguanine.
Topics: Animals; Antineoplastic Agents, Alkylating; Carmustine; Cell Survival; CHO Cells; Cricetinae; Drug Interactions; Drug Resistance, Neoplasm; Enzyme Inhibitors; Guanine; Humans; Mutation; O(6)-Methylguanine-DNA Methyltransferase | 1999 |
Acquired resistance to O6-benzylguanine plus chloroethylnitrosoureas in human breast cancer.
Topics: Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Breast Neoplasms; Carmustine; Drug Resistance, Neoplasm; Drug Synergism; Ethylnitrosourea; Glutathione; Guanine; Humans; O(6)-Methylguanine-DNA Methyltransferase; Tumor Cells, Cultured | 1999 |
Retroviral-mediated expression of the P140A, but not P140A/G156A, mutant form of O6-methylguanine DNA methyltransferase protects hematopoietic cells against O6-benzylguanine sensitization to chloroethylnitrosourea treatment.
Topics: Animals; Antineoplastic Agents; Carcinoma; Ethylnitrosourea; Female; Genetic Vectors; Guanine; Hematopoietic Stem Cells; Humans; Leukemia L1210; Melanoma, Experimental; Mice; Mice, Inbred C57BL; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Retroviridae; Tumor Cells, Cultured | 1999 |
Role of codon 160 in the sensitivity of human O6-alkylguanine-DNA alkyltransferase to O6-benzylguanine.
Topics: Amino Acid Substitution; Antineoplastic Agents; Cells, Cultured; Codon; Drug Resistance; Enzyme Inhibitors; Escherichia coli; Guanine; Humans; Mutagenesis, Site-Directed; O(6)-Methylguanine-DNA Methyltransferase | 1999 |
Protection of committed murine haemopoietic progenitors against BCNU toxicity does not predict protection of primitive, multipotent spleen colony-forming cells - implications for chemoprotective gene therapy.
Topics: Animals; Antineoplastic Agents; Carmustine; Cells, Cultured; Colony-Forming Units Assay; Drug Resistance, Neoplasm; Erythrocytes; Genetic Therapy; Granulocytes; Guanine; Hematopoietic Stem Cells; Humans; Immunohistochemistry; Macrophages; Male; Mice; Micronucleus Tests; Mutagens; Mutation; Nucleotidyltransferases; Spleen; Transduction, Genetic | 1999 |
Prolonged inhibition of O(6)-methylguanine DNA methyltransferase in human tumor cells by O(6)-benzylguanine in vitro and in vivo.
Topics: Animals; Antineoplastic Agents, Alkylating; Brain Neoplasms; Carmustine; Enzyme Inhibitors; Female; Glioma; Guanine; Humans; Male; Mice; Mice, Inbred NOD; Mice, SCID; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase; Tumor Cells, Cultured | 1999 |
O(6)-benzylguanine enhances the in vitro immunotoxic activity of temozolomide on natural or antigen-dependent immunity.
Topics: Antibody-Dependent Cell Cytotoxicity; Antineoplastic Agents, Alkylating; Cell Line; Dacarbazine; Enzyme Inhibitors; Guanine; Humans; Immunity, Cellular; Immunity, Innate; Immunosuppressive Agents; Interleukin-2; Monocytes; T-Lymphocytes, Regulatory; Temozolomide; Tumor Cells, Cultured | 1999 |
Characterization of the P140K, PVP(138-140)MLK, and G156A O6-methylguanine-DNA methyltransferase mutants: implications for drug resistance gene therapy.
Topics: Antineoplastic Agents; Carmustine; Cell Survival; Cloning, Molecular; Drug Interactions; Drug Resistance, Multiple; Drug Resistance, Neoplasm; Enzyme Stability; Gene Expression; Genetic Therapy; Guanine; Humans; K562 Cells; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Transfection | 1999 |
Inhibition of O(6)-methylguanine-DNA methyltransferase increases azoxymethane-induced colonic tumors in rats.
Topics: Animals; Azoxymethane; Carcinogens; Colonic Neoplasms; Enzyme Inhibitors; Genes, ras; Guanine; Kinetics; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Rats | 1999 |
O(6)-(4-bromothenyl)guanine improves the therapeutic index of temozolomide against A375M melanoma xenografts.
Topics: Adenosine Triphosphatases; Animals; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Dacarbazine; Drug Synergism; Enzyme Inhibitors; Guanine; Male; Melanoma; Mice; Mice, Nude; Neoplasm Transplantation; Temozolomide; Transplantation, Heterologous | 2000 |
Potentiation of BCNU antitumor efficacy by 9-substituted O6-benzylguanines. Effect of metabolism.
Topics: Animals; Antineoplastic Agents; Brain; Carmustine; Drug Synergism; Guanine; Humans; Mice; Mice, Inbred BALB C; Mice, Nude; O(6)-Methylguanine-DNA Methyltransferase; Rats; Rats, Sprague-Dawley | 2000 |
Point mutations at multiple sites including highly conserved amino acids maintain activity, but render O6-alkylguanine-DNA alkyltransferase insensitive to O6-benzylguanine.
Topics: Amino Acid Sequence; Amino Acid Substitution; Antineoplastic Agents; Binding Sites; Conserved Sequence; DNA Repair; Drug Resistance; Escherichia coli; Gene Library; Guanine; Humans; Methylnitronitrosoguanidine; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Point Mutation; Sequence Alignment | 2000 |
Conserved residue lysine165 is essential for the ability of O6-alkylguanine-DNA alkyltransferase to react with O6-benzylguanine.
Topics: Amino Acid Sequence; Amino Acid Substitution; Animals; Antineoplastic Agents; Binding Sites; Carmustine; CHO Cells; Conserved Sequence; Cricetinae; DNA; DNA Repair; Drug Resistance; Escherichia coli; Guanine; Humans; Lysine; Methylnitronitrosoguanidine; Molecular Sequence Data; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Protein Binding; Sequence Alignment; Transfection | 2000 |
In vivo administration of O(6)-benzylguanine does not influence apoptosis or mutation frequency following DNA damage in the murine intestine, but does inhibit P450-dependent activation of dacarbazine.
Topics: Animals; Antineoplastic Agents, Alkylating; Apoptosis; Biotransformation; Cisplatin; Cytochrome P-450 Enzyme System; Dacarbazine; DNA Damage; Enzyme Inhibitors; Guanine; Intestine, Small; Methylnitrosourea; Mice; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide | 2000 |
Differential modulation of chemosensitivity to alkylating agents and platinum compounds by DNA repair modulators in human lung cancer cell lines.
Topics: Antineoplastic Agents, Alkylating; DNA Repair; Drug Interactions; Guanine; Humans; Lung Neoplasms; Platinum Compounds; Tumor Cells, Cultured; Vidarabine | 2000 |
Limiting numbers of G156A O(6)-methylguanine-DNA methyltransferase-transduced marrow progenitors repopulate nonmyeloablated mice after drug selection.
Topics: Animals; Antineoplastic Agents; Blood Cell Count; Carmustine; Cell Differentiation; Cell Division; Gene Transfer Techniques; Guanine; Hematopoietic Stem Cell Transplantation; Hematopoietic Stem Cells; Mice; O(6)-Methylguanine-DNA Methyltransferase | 2000 |
O6-benzylguanine-mediated enhancement of nitrosourea activity in Mer- central nervous system tumor xenografts--implications for clinical trials.
Topics: Animals; Antineoplastic Agents; Carmustine; Central Nervous System Neoplasms; Clinical Trials as Topic; Enzyme Inhibitors; Female; Guanine; Humans; Male; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase; Transplantation, Heterologous | 2000 |
Role of O6-alkylguanine-DNA alkyltransferase in the resistance of mouse spermatogenic cells to O6-alkylating agents.
Topics: Analysis of Variance; Animals; Antineoplastic Agents, Alkylating; Apoptosis; Carmustine; DNA Repair; Drug Resistance; Enzyme Inhibitors; Guanine; Half-Life; In Situ Nick-End Labeling; Male; Mice; Mice, Inbred BALB C; O(6)-Methylguanine-DNA Methyltransferase; Seminiferous Epithelium; Spermatogonia; Testis; Time Factors | 2000 |
Enhanced in vivo repair of O(4)-methylthymine by a mutant human DNA alkyltransferase.
Topics: DNA Damage; DNA Repair; Enzyme Inhibitors; Escherichia coli; Guanine; Humans; Lac Operon; Methylnitronitrosoguanidine; O(6)-Methylguanine-DNA Methyltransferase; Phenotype; Point Mutation; Substrate Specificity; Thymine | 2000 |
Potentiation of BCNU anticancer activity by O6-benzylguanine: a study in vitro and in vivo.
Topics: Alkyl and Aryl Transferases; Animals; Antineoplastic Combined Chemotherapy Protocols; Apoptosis; Carmustine; Cell Survival; Drug Synergism; Guanine; Humans; Injections, Subcutaneous; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Transplantation; Stomach Neoplasms; Transplantation, Heterologous; Tumor Cells, Cultured | 2000 |
Protection of hematopoietic cells against combined O6-benzylguanine and chloroethylnitrosourea treatment by mutant forms of O6-methylguanine DNA methyltransferase.
Topics: Animals; Antineoplastic Agents; Carmustine; DNA Repair; Drug Resistance; Gene Expression; Genetic Therapy; Guanine; Hematopoietic Stem Cell Transplantation; Hematopoietic Stem Cells; Leukemia L1210; Mice; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Retroviridae; Transduction, Genetic | 2000 |
Malignant transformation of human fibroblast cell strain MSU-1.1 by N-methyl-N-nitrosourea: evidence of elimination of p53 by homologous recombination.
Topics: Alleles; Carcinogens; Cell Line; Cell Transformation, Neoplastic; Codon; Dose-Response Relationship, Drug; Enzyme Inhibitors; Fibroblasts; Gene Deletion; Genes, p53; Guanine; Homozygote; Humans; Loss of Heterozygosity; Methylnitrosourea; O(6)-Methylguanine-DNA Methyltransferase; Recombination, Genetic; Transcriptional Activation | 2000 |
Can O6-alkylguanine-DNA alkyltransferase depletion enhance alkylator activity in the clinic?
Topics: Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Carmustine; Drug Synergism; Enzyme Activation; Enzyme Inhibitors; Guanine; Humans; O(6)-Methylguanine-DNA Methyltransferase | 2000 |
Pharmacokinetics of oral O6-benzylguanine and evidence of interaction with oral ketoconazole in the rat.
Topics: Administration, Oral; Animals; Antineoplastic Agents; Area Under Curve; Biological Availability; Cytochrome P-450 CYP1A2; Guanine; Injections, Intravenous; Ketoconazole; Male; Mice; Rats; Rats, Sprague-Dawley | 2000 |
Plasma and cerebrospinal fluid pharmacokinetics of O6-benzylguanine and analogues in nonhuman primates.
Topics: Animals; Antineoplastic Agents; Dose-Response Relationship, Drug; Enzyme Inhibitors; Guanine; Humans; Macaca mulatta; Male; Microsomes, Liver; O(6)-Methylguanine-DNA Methyltransferase; Structure-Activity Relationship | 2000 |
Direct reversal of DNA damage by mutant methyltransferase protein protects mice against dose-intensified chemotherapy and leads to in vivo selection of hematopoietic stem cells.
Topics: 3T3 Cells; Animals; Antineoplastic Combined Chemotherapy Protocols; Bone Marrow Transplantation; Carmustine; DNA Damage; DNA Repair; Dose-Response Relationship, Drug; Gene Transfer Techniques; Genetic Vectors; Guanine; Hematopoietic Stem Cells; Humans; Mice; Mice, Inbred C57BL; O(6)-Methylguanine-DNA Methyltransferase; Point Mutation; Rats; Retroviridae; Transduction, Genetic | 2000 |
Effect of O6-benzylguanine on alkylating agent-induced toxicity and mutagenicity. In Chinese hamster ovary cells expressing wild-type and mutant O6-alkylguanine-DNA alkyltransferases.
Topics: Animals; Antineoplastic Agents, Alkylating; Carmustine; CHO Cells; Cricetinae; Cyclophosphamide; Dacarbazine; Drug Interactions; Enzyme Inhibitors; Guanine; Mutagenicity Tests; Mutagens; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide | 2000 |
O6-benzylguanine potentiates the antitumor effect of locally delivered carmustine against an intracranial rat glioma.
Topics: Animals; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Carmustine; Drug Implants; Drug Synergism; Enzyme Inhibitors; Glioma; Gliosarcoma; Guanine; Humans; Male; Medulloblastoma; O(6)-Methylguanine-DNA Methyltransferase; Rats; Rats, Inbred F344; Stereotaxic Techniques; Tumor Cells, Cultured; Xenograft Model Antitumor Assays | 2000 |
Protection and in vivo selection of hematopoietic stem cells using temozolomide, O6-benzylguanine, and an alkyltransferase-expressing retroviral vector.
Topics: Alkyl and Aryl Transferases; Animals; Antineoplastic Agents, Alkylating; B-Lymphocytes; Blood Platelets; Blotting, Southern; Cell Culture Techniques; Dacarbazine; Dose-Response Relationship, Drug; Enzyme Inhibitors; Erythrocytes; Female; Flow Cytometry; Genetic Vectors; Granulocytes; Green Fluorescent Proteins; Guanine; Hematopoietic Stem Cell Transplantation; Hematopoietic Stem Cells; Hemoglobins; Luminescent Proteins; Mice; Mice, Inbred C57BL; Models, Genetic; Neutrophils; Plasmids; Retroviridae; T-Lymphocytes; Temozolomide; Time Factors | 2001 |
Inactivation of human O(6)-alkylguanine-DNA alkyltransferase by modified oligodeoxyribonucleotides containing O(6)-benzylguanine.
Topics: Antineoplastic Agents, Alkylating; Carmustine; Cell Survival; Drug Resistance; Enzyme Inhibitors; Enzyme Repression; Guanine; HT29 Cells; Humans; O(6)-Methylguanine-DNA Methyltransferase; Oligodeoxyribonucleotides; Organophosphorus Compounds | 2001 |
Thresholds of O6-alkylguanine-DNA alkyltransferase which confer significant resistance of human glial tumor xenografts to treatment with 1,3-bis(2-chloroethyl)-1-nitrosourea or temozolomide.
Topics: Animals; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Apoptosis; Carmustine; Dacarbazine; Deoxyguanosine; Drug Resistance, Neoplasm; Enzyme Inhibitors; Glioma; Guanine; Humans; Mice; Mice, Nude; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Transplantation, Heterologous; Tumor Cells, Cultured | 2001 |
Purification and characterization of West Nile virus nucleoside triphosphatase (NTPase)/helicase: evidence for dissociation of the NTPase and helicase activities of the enzyme.
Topics: Acid Anhydride Hydrolases; Adenosine Triphosphatases; Adenosine Triphosphate; Animals; Chlorocebus aethiops; Guanine; Humans; Nucleoside-Triphosphatase; RNA Helicases; Vero Cells; West Nile virus | 2001 |
Debenzylation of O(6)-benzyl-8-oxoguanine in human liver: implications for O(6)-benzylguanine metabolism.
Topics: Cytochrome P-450 CYP1A2; DNA, Complementary; Guanine; Humans; Isoenzymes; Liver | 2001 |
Acquired resistance of melanoma cells to the antineoplastic agent fotemustine is caused by reactivation of the DNA repair gene MGMT.
Topics: Antineoplastic Agents; Azacitidine; Blotting, Southern; DNA Methylation; DNA Repair; Drug Resistance, Neoplasm; Enzyme Activation; Enzyme Inhibitors; Enzyme Reactivators; Gene Amplification; Gene Expression; Guanine; Humans; Melanoma; Nitrosourea Compounds; O(6)-Methylguanine-DNA Methyltransferase; Organophosphorus Compounds; Promoter Regions, Genetic; Tumor Cells, Cultured | 2001 |
Applied molecular evolution of O6-benzylguanine-resistant DNA alkyltransferases in human hematopoietic cells.
Topics: Amino Acid Sequence; Antineoplastic Agents; Carmustine; Cell Death; Cell Survival; Directed Molecular Evolution; Drug Resistance, Neoplasm; Enzyme Stability; Gene Library; Genetic Therapy; Guanine; Humans; K562 Cells; Molecular Sequence Data; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Transduction, Genetic | 2001 |
Comparison of single- versus double-bolus treatments of O(6)-benzylguanine for depletion of O(6)-methylguanine DNA methyltransferase (MGMT) activity in vivo: development of a novel fluorometric oligonucleotide assay for measurement of MGMT activity.
Topics: Animals; Enzyme Inhibitors; Female; Fluorometry; Guanine; HeLa Cells; Humans; Kinetics; Male; Mice; Mice, SCID; O(6)-Methylguanine-DNA Methyltransferase; Oligonucleotides; Regeneration; Tumor Cells, Cultured; Xenograft Model Antitumor Assays | 2001 |
O6-Benzylguanine potentiates BCNU but not busulfan toxicity in hematopoietic stem cells.
Topics: Alkylation; Animals; Antineoplastic Agents, Alkylating; Busulfan; Carmustine; Cell Line; CHO Cells; Coculture Techniques; Colony-Forming Units Assay; Cricetinae; Cricetulus; DNA Damage; DNA Repair; Erythroid Precursor Cells; Fibroblasts; Guanine; Hematopoietic Stem Cells; Humans; Male; Mice; Mice, Inbred C57BL; O(6)-Methylguanine-DNA Methyltransferase; Stromal Cells; Transfection | 2001 |
Mutagenesis by O(6)-methyl-, O(6)-ethyl-, and O(6)-benzylguanine and O(4)-methylthymine in human cells: effects of O(6)-alkylguanine-DNA alkyltransferase and mismatch repair.
Topics: Base Pair Mismatch; Colonic Neoplasms; Escherichia coli; Genetic Vectors; Guanine; Humans; Kidney; Lac Operon; Mutagenesis; Mutagens; O(6)-Methylguanine-DNA Methyltransferase; Thymine; Transfection | 2001 |
Interactions between methylating and pyridyloxobutylating agents in A/J mouse lungs: implications for 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone-induced lung tumorigenesis.
Topics: Alkylating Agents; Animals; Carcinogens; Dimethylnitrosamine; DNA Methylation; DNA Repair; Drug Synergism; Female; Guanine; Liver; Lung; Lung Neoplasms; Mice; Mice, Inbred A; Nitrosamines; O(6)-Methylguanine-DNA Methyltransferase; Pyridines | 2001 |
Differential degradation rates of inactivated alkyltransferase in blood mononuclear cells and tumors of patients after treatment with O(6)-benzylguanine.
Topics: Biopsy; Blotting, Western; Enzyme Inhibitors; Guanine; Humans; Leukocytes, Mononuclear; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Time Factors | 2001 |
The effectiveness of the O(6)-alkylguanine-DNA alkyltransferase encoded by the ogt(ST) gene from S. typhimurium in protection against alkylating drugs, resistance to O(6)-benzylguanine and sensitisation to dibromoalkane genotoxicity.
Topics: Alkanes; Alkylating Agents; Amino Acid Sequence; Catalytic Domain; DNA Damage; Drug Resistance, Bacterial; Escherichia coli; Ethylene Dibromide; Genes, Bacterial; Guanine; Humans; Molecular Sequence Data; Mutagenicity Tests; Mutagens; O(6)-Methylguanine-DNA Methyltransferase; Salmonella typhimurium; Sequence Homology, Amino Acid | 2001 |
Sequential tumor biopsies in early phase clinical trials of anticancer agents for pharmacodynamic evaluation.
Topics: Animals; Antineoplastic Agents; Biopsy; Carmustine; Cisplatin; Clinical Trials, Phase I as Topic; Clinical Trials, Phase II as Topic; Doxorubicin; Fenretinide; Guanine; Humans; Indoles; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Paclitaxel; Pyrroles; Tomography, X-Ray Computed; Treatment Outcome; Xenograft Model Antitumor Assays | 2001 |
G156A MGMT-transduced human mesenchymal stem cells can be selectively enriched by O6-benzylguanine and BCNU.
Topics: Animals; Antineoplastic Agents; Bone Marrow Cells; Brain; Carmustine; Cell Survival; Cell Transplantation; Cells, Cultured; DNA; Dose-Response Relationship, Drug; Drug Resistance, Multiple; Dystrophin; Flow Cytometry; Genetic Vectors; Green Fluorescent Proteins; Guanine; Humans; Infusions, Intravenous; Liver; Luminescent Proteins; Lung; Mesoderm; Mice; Mice, Inbred NOD; Mice, SCID; Mutation, Missense; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Fusion Proteins; Retroviridae; Spleen; Stem Cells; Tissue Distribution; Transfection | 2001 |
Role of cytochrome P450 isoenzymes in metabolism of O(6)-benzylguanine: implications for dacarbazine activation.
Topics: Antineoplastic Agents; Biotransformation; Carmustine; Cytochrome P-450 Enzyme System; Cytosol; Dacarbazine; DNA Repair; Guanine; Humans; Isoenzymes; Kinetics; Liver; Microsomes, Liver; Temozolomide | 2001 |
[Mutation of human O6-alkylguanine-DNA alkyltransferase confers resistance to O6-benzylguanine].
Topics: Amino Acid Sequence; Antineoplastic Agents; Base Sequence; DNA, Complementary; Drug Resistance, Neoplasm; Guanine; Humans; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase; Point Mutation | 2000 |
Effect of the O6 substituent on misincorporation kinetics catalyzed by DNA polymerases at O(6)-methylguanine and O(6)-benzylguanine.
Topics: Antineoplastic Agents; Carcinogens; Deoxyribonucleotides; DNA Primers; DNA-Directed DNA Polymerase; Guanine; HIV Reverse Transcriptase; Kinetics; Substrate Specificity; Templates, Genetic | 2002 |
Misincorporation and stalling at O(6)-methylguanine and O(6)-benzylguanine: evidence for inactive polymerase complexes.
Topics: Carcinogens; Deoxyribonucleotides; DNA Adducts; DNA Replication; DNA-Directed DNA Polymerase; Guanine; HIV Reverse Transcriptase; Kinetics; Models, Theoretical; Oligodeoxyribonucleotides; Recombinant Proteins; Substrate Specificity | 2002 |
Biochemical changes associated with a multidrug-resistant phenotype of a human glioma cell line with temozolomide-acquired resistance.
Topics: Adaptor Proteins, Signal Transducing; Adenosine Triphosphatases; Antineoplastic Agents, Alkylating; Antineoplastic Agents, Phytogenic; Carrier Proteins; Cell Cycle; Cyclin-Dependent Kinase Inhibitor p21; Cyclins; Dacarbazine; DNA Repair Enzymes; DNA-Binding Proteins; Doxorubicin; Drug Interactions; Drug Resistance, Multiple; Drug Screening Assays, Antitumor; Glioma; Guanine; Humans; Mismatch Repair Endonuclease PMS2; MutL Protein Homolog 1; Neoplasm Proteins; Nuclear Proteins; O(6)-Methylguanine-DNA Methyltransferase; Paclitaxel; Phenotype; Proto-Oncogene Proteins c-bcl-2; Temozolomide; Tumor Cells, Cultured; Tumor Suppressor Protein p53 | 2002 |
Interaction of mammalian O(6)-alkylguanine-DNA alkyltransferases with O(6)-benzylguanine.
Topics: Amino Acid Sequence; Animals; Enzyme Inhibitors; Guanine; Humans; Mice; Molecular Sequence Data; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Rats; Sequence Homology, Amino Acid; Species Specificity | 2002 |
Chemotherapy-induced O(6)-benzylguanine-resistant alkyltransferase mutations in mismatch-deficient colon cancer.
Topics: Adaptor Proteins, Signal Transducing; Alkyl and Aryl Transferases; Animals; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Base Pair Mismatch; Carmustine; Carrier Proteins; CHO Cells; Colonic Neoplasms; Cricetinae; DNA Repair; Drug Resistance, Multiple; Drug Resistance, Neoplasm; Drug Synergism; Genes, p53; Guanine; Humans; Mutagenesis; Mutation; MutL Protein Homolog 1; Neoplasm Proteins; Nuclear Proteins; O(6)-Methylguanine-DNA Methyltransferase; RNA, Messenger; Tumor Cells, Cultured | 2002 |
Toxicity of intracranial and intraperitoneal O6-benzyl guanine in combination with BCNU delivered locally in a mouse model.
Topics: Animals; Antineoplastic Combined Chemotherapy Protocols; Bone Marrow Diseases; Carmustine; Dose-Response Relationship, Drug; Drug Implants; Drug Synergism; Guanine; Inflammation; Infusion Pumps, Implantable; Infusions, Parenteral; Mice; Mice, Inbred BALB C; Necrosis; Parietal Lobe; Peritoneal Cavity | 2002 |
Effect of O6-benzylguanine on nitrogen mustard-induced toxicity, apoptosis, and mutagenicity in Chinese hamster ovary cells.
Topics: Animals; Antineoplastic Agents, Alkylating; Apoptosis; Cell Cycle; Cell Division; Chlorambucil; CHO Cells; Cricetinae; Enzyme Inhibitors; Guanine; Melphalan; O(6)-Methylguanine-DNA Methyltransferase; Phosphoramide Mustards | 2001 |
O6-benzylguanine-mediated enhancement of chemotherapy.
Topics: Animals; Antineoplastic Agents; Antineoplastic Agents, Alkylating; Camptothecin; Carmustine; Central Nervous System Neoplasms; Cyclophosphamide; Dacarbazine; DNA; Enzyme Inhibitors; Female; Guanine; Humans; Irinotecan; Male; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Transplantation; Protein Synthesis Inhibitors; Temozolomide | 2002 |
Effects of zinc occupancy on human O6-alkylguanine-DNA alkyltransferase.
Topics: Binding Sites; Chlorides; DNA Repair; DNA-Binding Proteins; Enzyme Inhibitors; Enzyme Stability; Guanine; Humans; Mass Spectrometry; Metalloproteins; Mutagenesis, Site-Directed; O(6)-Methylguanine-DNA Methyltransferase; Plasmids; Recombinant Proteins; Spectrometry, Fluorescence; Structure-Activity Relationship; Substrate Specificity; Zinc; Zinc Compounds | 2003 |
Delayed repletion of O6-methylguanine-DNA methyltransferase resulting in failure to protect the human glioblastoma cell line SF767 from temozolomide-induced cytotoxicity.
Topics: Antineoplastic Agents; Antineoplastic Agents, Alkylating; Cell Cycle Proteins; Cell Survival; Colony-Forming Units Assay; Dacarbazine; G2 Phase; Glioma; Guanine; Humans; Mitosis; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Time Factors; Tumor Cells, Cultured | 2003 |
Successful treatment of murine beta-thalassemia using in vivo selection of genetically modified, drug-resistant hematopoietic stem cells.
Topics: Animals; beta-Thalassemia; Crosses, Genetic; Dacarbazine; Drug Resistance; Female; Genetic Vectors; Globins; Guanine; Hematopoietic Stem Cell Transplantation; Hematopoietic Stem Cells; Lentivirus; Male; Mice; Mice, Inbred C57BL; Mice, Mutant Strains; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Fusion Proteins; Selection, Genetic; Temozolomide; Transplantation Chimera; Transplantation Conditioning | 2003 |
Directed evolution of O6-alkylguanine-DNA alkyltransferase for efficient labeling of fusion proteins with small molecules in vivo.
Topics: Animals; CHO Cells; Cricetinae; Directed Molecular Evolution; DNA Primers; Fluorescent Dyes; Genes, Reporter; Guanine; Indicators and Reagents; Ligands; Magnetic Resonance Spectroscopy; Models, Molecular; O(6)-Methylguanine-DNA Methyltransferase; Peptide Library; Proteomics; Recombinant Proteins; Reverse Transcriptase Polymerase Chain Reaction | 2003 |
Covalent and selective immobilization of fusion proteins.
Topics: Biosensing Techniques; Glutathione Transferase; Guanine; Kinetics; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Fusion Proteins; Surface Plasmon Resonance | 2003 |
Myeloablation is not required to select and maintain expression of the drug-resistance gene, mutant MGMT, in primary and secondary recipients.
Topics: Animals; Antineoplastic Agents, Alkylating; Blotting, Southern; Bone Marrow Cells; Bone Marrow Transplantation; Carmustine; Cell Separation; Dose-Response Relationship, Drug; Drug Resistance; Enzyme Inhibitors; Flow Cytometry; Gene Transfer Techniques; Genetic Therapy; Genetic Vectors; Guanine; Humans; Mice; Mice, Inbred C3H; Models, Genetic; Mutation; Neoplasm Transplantation; O(6)-Methylguanine-DNA Methyltransferase; Polymerase Chain Reaction; Stem Cells; Time Factors | 2003 |
Selective enhancement of ifosfamide-induced toxicity in Chinese hamster ovary cells.
Topics: Animals; Annexin A5; Antineoplastic Agents, Alkylating; Apoptosis; Cell Cycle; Cell Survival; CHO Cells; Cricetinae; DNA, Neoplasm; Female; Flow Cytometry; Guanine; Half-Life; Ifosfamide; Kinetics; O(6)-Methylguanine-DNA Methyltransferase; Plasmids; Transfection | 2003 |
Enhancement of platinum-induced cytotoxicity by O6-benzylguanine.
Topics: Animals; Apoptosis; Carboplatin; Cell Division; CHO Cells; Cisplatin; Cricetinae; DNA Damage; DNA, Neoplasm; Drug Interactions; Drug Synergism; Guanine; Humans; O(6)-Methylguanine-DNA Methyltransferase; Tumor Cells, Cultured | 2003 |
Alkylation damage repair protein O6-alkylguanine-DNA alkyltransferase from the hyperthermophiles Aquifex aeolicus and Archaeoglobus fulgidus.
Topics: Alkylating Agents; Archaeoglobus fulgidus; Bacteria; DNA; DNA Damage; DNA Repair; Enzyme Stability; Guanine; Hydrogen-Ion Concentration; O(6)-Methylguanine-DNA Methyltransferase; Protein Folding; Protein Renaturation; Temperature | 2003 |
Inhibition of telomerase activity in malignant glioma cells correlates with their sensitivity to temozolomide.
Topics: Antineoplastic Agents, Alkylating; Cell Death; Cell Division; Dacarbazine; DNA-Binding Proteins; Dose-Response Relationship, Drug; Down-Regulation; Drug Resistance, Neoplasm; Enzyme Inhibitors; Gene Expression; Glioma; Guanine; Humans; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Promoter Regions, Genetic; Reverse Transcriptase Polymerase Chain Reaction; RNA, Messenger; Telomerase; Temozolomide; Transcription Factors; Transcription, Genetic; Tumor Cells, Cultured | 2003 |
Drug selection of mutant methylguanine methyltransferase from different oncoretroviral backbones results in multilineage hematopoietic transgene expression in primary and secondary recipients.
Topics: Animals; Antineoplastic Agents; Bone Marrow Cells; Cell Line; Cell Lineage; Cell Separation; Cloning, Molecular; Dose-Response Relationship, Drug; Flow Cytometry; Gene Silencing; Genetic Vectors; Genome; Guanine; Hematopoietic Stem Cells; Humans; K562 Cells; Mice; Mice, Inbred C3H; Models, Genetic; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Polymerase Chain Reaction; Retroviridae Proteins, Oncogenic; Stem Cells; Time Factors; Transgenes | 2003 |
Cytotoxicity, DNA damage, and apoptosis induced by new fotemustine analogs on human melanoma cells in relation to O6-methylguanine DNA-methyltransferase expression.
Topics: Antineoplastic Agents; Apoptosis; Carmustine; DNA Damage; Enzyme Inhibitors; Enzyme-Linked Immunosorbent Assay; Guanine; Humans; Melanoma; Nitrosourea Compounds; O(6)-Methylguanine-DNA Methyltransferase; Organophosphorus Compounds; Tumor Cells, Cultured | 2003 |
Sensitization of pancreatic tumor xenografts to carmustine and temozolomide by inactivation of their O6-Methylguanine-DNA methyltransferase with O6-benzylguanine or O6-benzyl-2'-deoxyguanosine.
Topics: Alkylating Agents; Animals; Antineoplastic Agents, Alkylating; Carmustine; Cell Line, Tumor; Dacarbazine; Deoxyguanosine; DNA Repair; Dose-Response Relationship, Drug; Enzyme Inhibitors; Guanine; Humans; Male; Mice; Mice, Nude; Neoplasm Transplantation; Neoplasms, Experimental; O(6)-Methylguanine-DNA Methyltransferase; Pancreatic Neoplasms; Temozolomide; Time Factors | 2003 |
In vivo selection of MGMT(P140K) lentivirus-transduced human NOD/SCID repopulating cells without pretransplant irradiation conditioning.
Topics: Animals; Antigens, CD34; Antineoplastic Agents; Carmustine; Gene Transfer Techniques; Genetic Vectors; Guanine; Hematopoietic Stem Cell Transplantation; Hematopoietic Stem Cells; Humans; Lentivirus; Mice; Mice, SCID; O(6)-Methylguanine-DNA Methyltransferase; Radiation; Severe Combined Immunodeficiency; Transduction, Genetic; Transgenes; Transplantation Conditioning | 2003 |
Induced protein dimerization in vivo through covalent labeling.
Topics: Bacterial Proteins; Dimerization; Escherichia coli; Glutathione Transferase; Guanine; Humans; Methotrexate; O(6)-Methylguanine-DNA Methyltransferase; Receptors, Glucocorticoid; Recombinant Fusion Proteins; Serine Endopeptidases; Tetrahydrofolate Dehydrogenase; Transcriptional Activation; Yeasts | 2003 |
Inhibition of DNA repair for sensitizing resistant glioma cells to temozolomide.
Topics: Antineoplastic Agents, Alkylating; Apoptosis; Cell Line, Tumor; Cell Survival; Dacarbazine; DNA Repair; Drug Resistance, Neoplasm; Enzyme Inhibitors; Glioma; Guanine; Humans; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide | 2003 |
Hematopoietic expression of O(6)-methylguanine DNA methyltransferase-P140K allows intensive treatment of human glioma xenografts with combination O(6)-benzylguanine and 1,3-bis-(2-chloroethyl)-1-nitrosourea.
Topics: Animals; Antineoplastic Agents, Alkylating; Bone Marrow; Brain Neoplasms; Carmustine; Glioma; Guanine; Humans; Mice; Mice, Inbred NOD; Mice, SCID; O(6)-Methylguanine-DNA Methyltransferase; Transduction, Genetic; Transplantation, Heterologous | 2003 |
In vivo selection for human and murine hematopoietic cells transduced with a therapeutic MGMT lentiviral vector that inhibits HIV replication.
Topics: Animals; Carmustine; Flow Cytometry; Gene Products, env; Genetic Vectors; Guanine; Hematopoietic Stem Cells; HIV-1; Humans; Lentivirus; Mice; Mice, Inbred NOD; Mice, SCID; O(6)-Methylguanine-DNA Methyltransferase; T-Lymphocytes; Transduction, Genetic; Virus Replication | 2004 |
Labeling of fusion proteins of O6-alkylguanine-DNA alkyltransferase with small molecules in vivo and in vitro.
Topics: Bacterial Proteins; Blotting, Western; Estrogen Receptor alpha; Fluorescein; Fluorescent Dyes; Fungal Proteins; Guanine; HeLa Cells; Humans; Methotrexate; Microscopy, Fluorescence; Molecular Structure; O(6)-Methylguanine-DNA Methyltransferase; Polymerase Chain Reaction; Recombinant Fusion Proteins; Saccharomyces cerevisiae; Serine Endopeptidases; Staining and Labeling; Subcellular Fractions; Tamoxifen | 2004 |
Interstitial infusion of carmustine in the rat brain stem with systemic administration of O6-benzylguanine.
Topics: Animals; Antineoplastic Combined Chemotherapy Protocols; Brain Stem; Carmustine; Guanine; Infusion Pumps; Injections, Intraperitoneal; Macrophages; Male; Neutrophils; Rats; Rats, Sprague-Dawley; Stereotaxic Techniques | 2004 |
Limited lentiviral transgene expression with increasing copy number in an MGMT selection model: lack of copy number selection by drug treatment.
Topics: Alkyl and Aryl Transferases; Cell Line; Gene Expression; Genetic Therapy; Genetic Vectors; Guanine; Humans; Lentivirus; Mutagenesis, Insertional; O(6)-Methylguanine-DNA Methyltransferase; Polymerase Chain Reaction; Proviruses; Transduction, Genetic; Transgenes; Virus Integration | 2004 |
Hematopoietic stem cell gene therapy of murine protoporphyria by methylguanine-DNA-methyltransferase-mediated in vivo drug selection.
Topics: Animals; Antineoplastic Agents; Carmustine; Female; Ferrochelatase; Genetic Engineering; Genetic Therapy; Genetic Vectors; Guanine; Lentivirus; Male; Mice; Mice, Inbred BALB C; Models, Animal; O(6)-Methylguanine-DNA Methyltransferase; Protoporphyria, Erythropoietic; Stem Cell Transplantation; Stem Cells; Transduction, Genetic | 2004 |
Nuclear-localizing O6-benzylguanine-resistant GFP-MGMT fusion protein as a novel in vivo selection marker.
Topics: Animals; Cell Nucleus; Cells, Cultured; Genetic Vectors; Green Fluorescent Proteins; Guanine; Hematopoietic Stem Cells; Luminescent Proteins; Mice; Mice, Inbred C57BL; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Fusion Proteins; Transduction, Genetic | 2004 |
Brain tumor cell lines resistant to O6-benzylguanine/1,3-bis(2-chloroethyl)-1-nitrosourea chemotherapy have O6-alkylguanine-DNA alkyltransferase mutations.
Topics: Antineoplastic Agents; Brain Neoplasms; Carmustine; Cell Line, Tumor; Deoxyguanosine; Drug Resistance, Neoplasm; Guanine; Humans; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Polymorphism, Genetic | 2004 |
Synthesis and antitumor activity of methyltriazene prodrugs simultaneously releasing DNA-methylating agents and the antiresistance drug O(6)-benzylguanine.
Topics: Antineoplastic Agents; Cell Line, Tumor; Dacarbazine; Diazomethane; DNA Methylation; Drug Resistance, Neoplasm; Guanine; Humans; Hydrolysis; Prodrugs; Temozolomide; Triazenes | 2004 |
Beta-glucuronidase-cleavable prodrugs of O6-benzylguanine and O6-benzyl-2'-deoxyguanosine.
Topics: Alkyl and Aryl Transferases; Animals; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Biochemistry; Carmustine; Cattle; Cell Death; Deoxyguanosine; Drug Stability; Enzyme Activation; Escherichia coli; Glucuronidase; Guanine; HT29 Cells; Humans; Hydrolysis; Kinetics; Liver; Prodrugs | 2005 |
Role of glutathione and nucleotide excision repair in modulation of cisplatin activity with O6-benzylguanine.
Topics: Antineoplastic Agents; Cell Line; Cell Survival; Cisplatin; DNA Damage; DNA Repair; Drug Synergism; Glutathione; Guanine; Humans; Platinum; Tumor Cells, Cultured | 2005 |
Inactivated MGMT by O6-benzylguanine is associated with prolonged G2/M arrest in cancer cells treated with BCNU.
Topics: Amino Acid Substitution; Carmustine; Cell Cycle; Cell Death; Cell Division; Cell Line, Tumor; DNA Damage; Drug Resistance, Neoplasm; G2 Phase; Guanine; Humans; Mutagenesis, Site-Directed; O(6)-Methylguanine-DNA Methyltransferase | 2005 |
O6-methylguanine-DNA methyltransferase, O6-benzylguanine, and resistance to clinical alkylators in pediatric primary brain tumor cell lines.
Topics: Adolescent; Antineoplastic Agents, Alkylating; Brain; Carmustine; Cell Survival; Child; Child, Preschool; Dacarbazine; Dose-Response Relationship, Drug; Drug Resistance, Neoplasm; Drug Synergism; Enzyme Inhibitors; Female; Guanine; Humans; Male; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Time Factors; Tumor Cells, Cultured | 2005 |
Mitochondrial targeting of human O6-methylguanine DNA methyltransferase protects against cell killing by chemotherapeutic alkylating agents.
Topics: Antigens, CD34; Antineoplastic Agents, Alkylating; Carmustine; Cell Death; Cell Nucleus; Dacarbazine; DNA Damage; DNA Repair; Drug Resistance, Neoplasm; Guanine; Hematopoietic Stem Cells; Humans; K562 Cells; Methyl Methanesulfonate; Mitochondria; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Transfection | 2005 |
Role of O6-methylguanine-DNA methyltransferase and effect of O6-benzylguanine on the anti-tumor activity of cis-diaminedichloroplatinum(II) in oral cancer cell lines.
Topics: Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Cell Line, Tumor; Cisplatin; DNA Repair; Docetaxel; Drug Resistance, Neoplasm; Guanine; Humans; Methylnitronitrosoguanidine; Mouth Neoplasms; O(6)-Methylguanine-DNA Methyltransferase; Taxoids | 2005 |
Role of GADD34 in modulation of cisplatin cytotoxicity.
Topics: Antigens, Differentiation; Antineoplastic Agents; Apoptosis; Cell Cycle Proteins; Cell Line, Tumor; Cisplatin; Dose-Response Relationship, Drug; Drug Synergism; Gene Expression Regulation, Neoplastic; Guanine; Humans; Oligonucleotide Array Sequence Analysis; Protein Phosphatase 1; Reverse Transcriptase Polymerase Chain Reaction | 2006 |
[O6-benzylguanine stimulates regulatory functions of the Ada protein in Escherichia coli].
Topics: DNA Glycosylases; DNA Repair; Dose-Response Relationship, Drug; Enzyme Inhibitors; Escherichia coli; Escherichia coli Proteins; Gene Expression Regulation, Bacterial; Gene Expression Regulation, Enzymologic; Guanine; Humans; Mixed Function Oxygenases; O(6)-Methylguanine-DNA Methyltransferase; Promoter Regions, Genetic; Transcription Factors | 2005 |
The antineoplastic efficacy of the prodrug Cloretazine is produced by the synergistic interaction of carbamoylating and alkylating products of its activation.
Topics: Animals; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Apoptosis; Biotransformation; Cell Line; Cells, Cultured; CHO Cells; Cricetinae; Drug Synergism; Guanine; HL-60 Cells; Humans; Hydrazines; Isocyanates; O(6)-Methylguanine-DNA Methyltransferase; Prodrugs; Sulfonamides; Transfection | 2005 |
Differential competitive resistance to methylating versus chloroethylating agents among five O6-alkylguanine DNA alkyltransferases in human hematopoietic cells.
Topics: Alkylating Agents; Carmustine; Dacarbazine; Drug Resistance; Genetic Engineering; Guanine; Hematopoietic Stem Cells; Humans; K562 Cells; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Transduction, Genetic | 2006 |
Molecular imaging of alkylguanine-DNA alkyltransferase: further evaluation of radioiodinated derivatives of O6-benzylguanine.
Topics: Animals; Benzoflavones; Cell Line, Tumor; Drug Evaluation, Preclinical; Female; Guanine; Humans; Iodine Radioisotopes; Male; Medulloblastoma; Mice; Mice, Inbred BALB C; Mice, Nude; O(6)-Methylguanine-DNA Methyltransferase; Radionuclide Imaging; Rhabdomyosarcoma; Transplantation, Heterologous; Tumor Cells, Cultured | 2006 |
Directed evolution of O6-alkylguanine-DNA alkyltransferase for applications in protein labeling.
Topics: Binding Sites; Cell Membrane; Cells, Cultured; Escherichia coli; Evolution, Molecular; Guanine; Models, Molecular; Molecular Weight; Mutagenesis, Site-Directed; O(6)-Methylguanine-DNA Methyltransferase; Peptide Library; Recombinant Fusion Proteins; Staining and Labeling | 2006 |
In vivo selection of transduced hematopoietic stem cells and little evidence of their conversion into hepatocytes in vivo.
Topics: Animals; Antineoplastic Agents; Antineoplastic Agents, Alkylating; Cell Differentiation; Cell Line; Dacarbazine; Drug Resistance; Genetic Vectors; Guanine; Hematopoietic Stem Cell Transplantation; Hematopoietic Stem Cells; Hepatocytes; Humans; Mice; Mice, Inbred C57BL; Mice, Transgenic; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Transduction, Genetic; Transplantation, Heterologous | 2006 |
Temozolomide-mediated radiation enhancement in glioblastoma: a report on underlying mechanisms.
Topics: Animals; Apoptosis; Cell Line, Tumor; Combined Modality Therapy; Dacarbazine; Disease Models, Animal; DNA Damage; Glioblastoma; Guanine; Humans; Methylation; Mice; Mice, Nude; O(6)-Methylguanine-DNA Methyltransferase; Structure-Activity Relationship; Temozolomide; Transplantation, Heterologous; Xenograft Model Antitumor Assays | 2006 |
Fluorophores for live cell imaging of AGT fusion proteins across the visible spectrum.
Topics: Animals; Cell Line; Fluorescence Resonance Energy Transfer; Fluorescent Dyes; Guanine; Image Processing, Computer-Assisted; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Fusion Proteins; Rhodamines | 2006 |
A single cycle of treatment with temozolomide, alone or combined with O(6)-benzylguanine, induces strong chemoresistance in melanoma cell clones in vitro: role of O(6)-methylguanine-DNA methyltransferase and the mismatch repair system.
Topics: Antineoplastic Agents; Base Pair Mismatch; Dacarbazine; DNA Methylation; DNA Repair; Drug Resistance, Neoplasm; Enzyme Inhibitors; Guanine; Humans; Melanoma; O(6)-Methylguanine-DNA Methyltransferase; Promoter Regions, Genetic; Temozolomide; Tumor Cells, Cultured; Up-Regulation | 2006 |
Local intracerebral administration of O(6)-benzylguanine combined with systemic chemotherapy with temozolomide of a patient suffering from a recurrent glioblastoma.
Topics: Adult; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Dacarbazine; DNA Modification Methylases; DNA Repair Enzymes; Drug Resistance; Enzyme Inhibitors; Glioblastoma; Guanine; Humans; Infusions, Intralesional; Male; Neoplasm Recurrence, Local; Temozolomide; Treatment Outcome; Tumor Suppressor Proteins | 2007 |
Role of O6-methylguanine-DNA methyltransferase in protecting from alkylating agent-induced toxicity and mutations in mice.
Topics: Alkylating Agents; Animals; Carmustine; Cell Line, Tumor; Cyclophosphamide; Dacarbazine; Guanine; Male; Mice; Mice, Transgenic; Mutagenicity Tests; Mutation; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide; Transfection | 2007 |
The Fanconi anemia (FA) pathway confers glioma resistance to DNA alkylating agents.
Topics: Antineoplastic Agents, Alkylating; Brain Neoplasms; Carmustine; Cell Line, Tumor; Curcumin; Dacarbazine; DNA Modification Methylases; DNA Repair; DNA Repair Enzymes; Dose-Response Relationship, Drug; Drug Resistance, Neoplasm; Enzyme Inhibitors; Fanconi Anemia Complementation Group D2 Protein; Fanconi Anemia Complementation Group F Protein; Fanconi Anemia Complementation Group Proteins; Glioma; Guanine; Humans; Protein Processing, Post-Translational; RNA Interference; RNA, Small Interfering; Temozolomide; Time Factors; Transfection; Tumor Suppressor Proteins; Ubiquitins | 2007 |
Molecular basis of selectivity of nucleoside triphosphate incorporation opposite O6-benzylguanine by sulfolobus solfataricus DNA polymerase Dpo4: steady-state and pre-steady-state kinetics and x-ray crystallography of correct and incorrect pairing.
Topics: Archaeal Proteins; Base Pair Mismatch; Base Pairing; Crystallography, X-Ray; Deoxyribonucleotides; DNA Polymerase beta; DNA Replication; DNA-Directed DNA Polymerase; DNA, Archaeal; Guanine; HIV Reverse Transcriptase; Humans; Kinetics; Mass Spectrometry; Sulfolobus solfataricus | 2007 |
Depletion of O6-methylguanine-DNA methyltransferase by O6-benzylguanine enhances 5-FU cytotoxicity in colon and oral cancer cell lines.
Topics: Antineoplastic Agents; Cell Line, Tumor; Cell Proliferation; Colonic Neoplasms; Drug Resistance, Neoplasm; Enzyme Inhibitors; Fluorouracil; Guanine; Humans; Mouth Neoplasms; O(6)-Methylguanine-DNA Methyltransferase | 2007 |
Stable differentiation and clonality of murine long-term hematopoiesis after extended reduced-intensity selection for MGMT P140K transgene expression.
Topics: Animals; Antineoplastic Agents; Antineoplastic Agents, Alkylating; Bone Marrow Cells; Bone Marrow Transplantation; Carmustine; Cell Differentiation; Genetic Therapy; Guanine; Hematopoiesis; Mice; Mice, Inbred C57BL; Mice, Transgenic; Myeloid Cells; O(6)-Methylguanine-DNA Methyltransferase; Stem Cells; Terminal Repeat Sequences; Transduction, Genetic; Transplantation, Homologous | 2007 |
A concise synthesis of the Pennsylvania Green fluorophore and labeling of intracellular targets with O6-benzylguanine derivatives.
Topics: Alkyl and Aryl Transferases; Animals; CHO Cells; Cricetinae; Cricetulus; Crystallography, X-Ray; Fluorescent Dyes; Genes, Reporter; Guanine; Humans; Models, Molecular; Molecular Probes; Molecular Structure | 2007 |
Targeting methylguanine-DNA methyltransferase in the treatment of neuroblastoma.
Topics: Adaptor Proteins, Signal Transducing; Animals; Antineoplastic Agents, Phytogenic; Camptothecin; Cell Line, Tumor; Cell Proliferation; Dacarbazine; DNA Modification Methylases; DNA Repair Enzymes; Drug Resistance, Neoplasm; Enzyme Inhibitors; Guanine; Humans; Irinotecan; Mice; Mice, SCID; MutL Protein Homolog 1; MutS Homolog 2 Protein; Neuroblastoma; Nuclear Proteins; Temozolomide; Tumor Suppressor Proteins | 2007 |
O6-methylguanine-DNA-methyltransferase promoter demethylation is involved in basic fibroblast growth factor induced resistance against temozolomide in human melanoma cells.
Topics: Antineoplastic Agents; Antineoplastic Agents, Alkylating; Base Pair Mismatch; Blotting, Western; Dacarbazine; DNA Methylation; DNA Mismatch Repair; DNA Repair Enzymes; Drug Resistance, Neoplasm; Fibroblast Growth Factor 2; Guanine; Humans; Luciferases; Melanoma; O(6)-Methylguanine-DNA Methyltransferase; Promoter Regions, Genetic; Reverse Transcriptase Polymerase Chain Reaction; RNA, Messenger; RNA, Neoplasm; Skin Neoplasms; Temozolomide; Tumor Cells, Cultured | 2007 |
Caged substrates for protein labeling and immobilization.
Topics: Dimerization; Electrophoresis, Polyacrylamide Gel; Enzymes, Immobilized; Fluorescence; Fluorescent Dyes; Glutathione Transferase; Guanine; Humans; O(6)-Methylguanine-DNA Methyltransferase; Photolysis; Protein Binding; Recombinant Proteins; Staining and Labeling | 2008 |
Carmustine-resistant cancer cells are sensitized to temozolomide as a result of enhanced mismatch repair during the development of carmustine resistance.
Topics: Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Apoptosis; Cadmium Chloride; Carmustine; Cell Line, Tumor; Cell Proliferation; Comet Assay; Dacarbazine; DNA Mismatch Repair; Dose-Response Relationship, Drug; Drug Resistance, Neoplasm; Guanine; Humans; Hydroxylamines; Nimustine; Precursor Cell Lymphoblastic Leukemia-Lymphoma; Temozolomide | 2008 |
Heterogeneity of human glioblastoma: glutathione-S-transferase and methylguanine-methyltransferase.
Topics: Alkylating Agents; Brain Neoplasms; Carmustine; Cell Line, Tumor; Cell Proliferation; DNA Methylation; DNA Modification Methylases; DNA Repair Enzymes; DNA Replication; Dose-Response Relationship, Drug; Enzyme Inhibitors; Ethacrynic Acid; Gene Expression Regulation, Enzymologic; Gene Expression Regulation, Neoplastic; Glioblastoma; Glutathione S-Transferase pi; Glutathione Transferase; Guanine; Humans; Melphalan; Promoter Regions, Genetic; Tumor Suppressor Proteins | 2008 |
Enhancement of cisplatin [cis-diammine dichloroplatinum (II)] cytotoxicity by O6-benzylguanine involves endoplasmic reticulum stress.
Topics: Antineoplastic Agents; Caspase 12; Caspase 3; Cell Line, Tumor; Cisplatin; DNA; DNA Breaks, Double-Stranded; Drug Synergism; Endoplasmic Reticulum; Guanine; Humans; Platinum; RNA, Messenger; Transcription Factor CHOP | 2008 |
Development of an O(6)-alkylguanine-DNA alkyltransferase assay based on covalent transfer of the benzyl moiety from [benzene-3H]O(6)-benzylguanine to the protein.
Topics: Blotting, Western; Cell Line; Enzyme Assays; Guanine; Humans; O(6)-Methylguanine-DNA Methyltransferase; Proteins; Reproducibility of Results | 2008 |
Substitution of aminomethyl at the meta-position enhances the inactivation of O6-alkylguanine-DNA alkyltransferase by O6-benzylguanine.
Topics: Computer Simulation; Enzyme Inhibitors; Guanine; Humans; Hydrogen Bonding; Ligands; Models, Chemical; Models, Molecular; Molecular Structure; O(6)-Methylguanine-DNA Methyltransferase; Stereoisomerism; Structure-Activity Relationship | 2008 |
Role of copper transporters in resistance to platinating agents.
Topics: Adenosine Triphosphatases; Antineoplastic Agents; Biological Transport; Carboplatin; Cation Transport Proteins; Cell Line; Cisplatin; Copper Transporter 1; Copper-Transporting ATPases; Drug Resistance, Neoplasm; Fibroblasts; Gene Expression Regulation; Guanine; Humans; Organoplatinum Compounds; Oxaliplatin | 2009 |
Degradation of BRCA2 in alkyltransferase-mediated DNA repair and its clinical implications.
Topics: Alkylating Agents; Amino Acid Sequence; Animals; BRCA2 Protein; DNA Repair; Gene Deletion; Guanine; Humans; Methylnitronitrosoguanidine; Mice; Mice, Knockout; Mice, Transgenic; Molecular Sequence Data; O(6)-Methylguanine-DNA Methyltransferase | 2008 |
Indo-1 derivatives for local calcium sensing.
Topics: Animals; Calcium; Cell Nucleus; Fluorescent Dyes; Guanine; Indoles; Mice; Microscopy, Fluorescence; Muscle Fibers, Skeletal; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Fusion Proteins | 2009 |
The alkyltransferase-like ybaZ gene product enhances nucleotide excision repair of O(6)-alkylguanine adducts in E. coli.
Topics: Adenosine Triphosphatases; Alkyl and Aryl Transferases; DNA Adducts; DNA Repair; DNA-Binding Proteins; DNA, Bacterial; Escherichia coli; Escherichia coli Proteins; Genes, Bacterial; Guanine; Mutagenesis; Mutation; Rifampin | 2009 |
Methylguanine DNA methyltransferase-mediated drug resistance-based selective enrichment and engraftment of transplanted stem cells in skeletal muscle.
Topics: Animals; Animals, Genetically Modified; Antigens, CD34; Carmustine; Cell Differentiation; Cell Separation; Cell Survival; Drug Resistance; Guanine; Humans; Mice; Muscle Fibers, Skeletal; Muscle, Skeletal; Myoblasts; O(6)-Methylguanine-DNA Methyltransferase; Regeneration; Retroviridae; Stem Cell Transplantation; Transduction, Genetic | 2009 |
In vivo selection of hematopoietic progenitor cells and temozolomide dose intensification in rhesus macaques through lentiviral transduction with a drug resistance gene.
Topics: Animals; Antineoplastic Agents, Alkylating; Carmustine; Dacarbazine; Genetic Therapy; Genetic Vectors; Guanine; Hematopoietic Stem Cell Transplantation; Homeodomain Proteins; Lentivirus; Macaca mulatta; O(6)-Methylguanine-DNA Methyltransferase; Temozolomide | 2009 |
Protein conjugates of SH3-domain ligands and ATP-competitive inhibitors as bivalent inhibitors of protein kinases.
Topics: Adenosine Triphosphate; Amino Acid Sequence; Binding, Competitive; Guanine; Humans; Ligands; O(6)-Methylguanine-DNA Methyltransferase; Protein Kinase Inhibitors; src Homology Domains | 2009 |
Recognition of O6MeG lesions by MGMT and mismatch repair proficiency may be a prerequisite for low-dose radiation hypersensitivity.
Topics: Cell Division; Cell Line, Tumor; Cell Survival; Dacarbazine; DNA Mismatch Repair; Drug Resistance, Neoplasm; Enzyme Activation; G2 Phase; Guanine; Humans; O(6)-Methylguanine-DNA Methyltransferase; Phenotype; Radiation Dosage; Radiation Tolerance; Temozolomide | 2009 |
Blockade of MGMT expression by O6 benzyl guanine leads to inhibition of pancreatic cancer growth and induction of apoptosis.
Topics: Animals; Antineoplastic Agents; Apoptosis; Carcinoma; Cell Proliferation; DNA Modification Methylases; DNA Repair Enzymes; Down-Regulation; Drug Evaluation, Preclinical; Gene Expression Regulation; Gene Expression Regulation, Enzymologic; Genes, p53; Guanine; Humans; Inhibitory Concentration 50; Male; Mice; Mice, Nude; Pancreatic Neoplasms; Tumor Suppressor Proteins | 2009 |
Effect of O6-chloroethylguanine DNA lesions on the kinetics and mechanism of micronucleus induction in vivo.
Topics: Animals; Antineoplastic Agents, Alkylating; Carmustine; DNA Damage; Dose-Response Relationship, Drug; Enzyme Inhibitors; Erythrocytes; Guanine; Kinetics; Male; Mice; Mice, Inbred BALB C; Micronuclei, Chromosome-Defective; O(6)-Methylguanine-DNA Methyltransferase; Toxicity Tests | 2010 |
Efficient and stable MGMT-mediated selection of long-term repopulating stem cells in nonhuman primates.
Topics: Animals; Carmustine; Genetic Therapy; Guanine; Hematopoietic Stem Cell Transplantation; Macaca nemestrina; Male; O(6)-Methylguanine-DNA Methyltransferase; Papio; Retroviridae; Stem Cells; Transgenes | 2010 |
Thin layer chromatography-based assay of O6-methylguanine-DNA methyltransferase activity in tissue.
Topics: Cell Line, Tumor; Chromatography, Thin Layer; Fluorescent Dyes; Guanine; Humans; Neoplasms; O(6)-Methylguanine-DNA Methyltransferase | 2010 |
Localizable and highly sensitive calcium indicator based on a BODIPY fluorophore.
Topics: Animals; Boron Compounds; Calcium; CHO Cells; Cricetinae; Cricetulus; Fluorescent Dyes; Glycine; Guanine; Indicators and Reagents; Microscopy, Fluorescence; Purines | 2010 |
Quenched substrates for live-cell labeling of SNAP-tagged fusion proteins with improved fluorescent background.
Topics: Animals; Escherichia coli; Fluorescent Dyes; Guanine; Humans; Mice; Microscopy, Fluorescence; NIH 3T3 Cells; O(6)-Methylguanine-DNA Methyltransferase; Recombinant Fusion Proteins; STAT5 Transcription Factor | 2010 |
Activation of AMP-activated protein kinase by temozolomide contributes to apoptosis in glioblastoma cells via p53 activation and mTORC1 inhibition.
Topics: AMP-Activated Protein Kinases; Antineoplastic Agents, Alkylating; Apoptosis; bcl-2-Associated X Protein; Cell Line, Tumor; Dacarbazine; DNA Modification Methylases; Enzyme Activation; Enzyme Inhibitors; Gene Expression Regulation, Neoplastic; Glioblastoma; Guanine; Humans; Mechanistic Target of Rapamycin Complex 1; Methylnitronitrosoguanidine; Multiprotein Complexes; Proteins; Proto-Oncogene Proteins c-bcl-2; Reactive Oxygen Species; Signal Transduction; Temozolomide; TOR Serine-Threonine Kinases; Tumor Suppressor Protein p53 | 2010 |
Influence of cell cycle checkpoints and p53 function on the toxicity of temozolomide in human pancreatic cancer cells.
Topics: Animals; Apoptosis; Cell Cycle; Cell Line, Tumor; Cell Proliferation; Dacarbazine; DNA Mismatch Repair; Fibroblasts; Guanine; Humans; In Situ Nick-End Labeling; Mice; O(6)-Methylguanine-DNA Methyltransferase; Pancreatic Neoplasms; Temozolomide; Tumor Suppressor Protein p53 | 2010 |
Radioiodinated O(6)-Benzylguanine derivatives containing an azido function.
Topics: 3-Iodobenzylguanidine; Azides; Cell Line, Tumor; Guanine; Humans; Iodine Radioisotopes; Nuclear Localization Signals; O(6)-Methylguanine-DNA Methyltransferase; Radiochemistry | 2011 |
Humanized bone marrow mouse model as a preclinical tool to assess therapy-mediated hematotoxicity.
Topics: Animals; Antineoplastic Combined Chemotherapy Protocols; Bone Marrow; Bone Marrow Cells; Cell Line, Tumor; Cord Blood Stem Cell Transplantation; Dacarbazine; Dose-Response Relationship, Drug; Female; Glioblastoma; Guanine; Humans; Male; Mice; Mice, Inbred BALB C; Mice, Inbred C57BL; Mice, Inbred NOD; Mice, Knockout; Mice, SCID; Survival Analysis; Temozolomide; Transplantation Chimera; Treatment Outcome; Tumor Burden; Xenograft Model Antitumor Assays | 2011 |
4-nitrobenzyloxycarbonyl derivatives of O(6)-benzylguanine as hypoxia-activated prodrug inhibitors of O(6)-alkylguanine-DNA alkyltransferase (AGT), which produces resistance to agents targeting the O-6 position of DNA guanine.
Topics: Animals; Antineoplastic Agents, Alkylating; Cell Hypoxia; Cell Line, Tumor; DNA; Drug Resistance, Neoplasm; Drug Screening Assays, Antitumor; Drug Synergism; Guanine; Humans; Hydrazines; Mice; NADPH-Ferrihemoprotein Reductase; O(6)-Methylguanine-DNA Methyltransferase; Prodrugs; Solubility; Structure-Activity Relationship; Sulfonamides; Xanthine Oxidase | 2011 |
SNAP-tag technology mediates site specific conjugation of antibody fragments with a photosensitizer and improves target specific phototoxicity in tumor cells.
Topics: Cell Line, Tumor; Chlorophyllides; Drug Delivery Systems; ErbB Receptors; Gene Expression; Guanine; Humans; Neoplasms; Photochemotherapy; Photosensitizing Agents; Porphyrins; Recombinant Fusion Proteins; Single-Chain Antibodies | 2011 |
Releasable SNAP-tag probes for studying endocytosis and recycling.
Topics: Cell Line; Cell Survival; Endocytosis; Endosomes; Fluorescent Dyes; Guanine; HEK293 Cells; HeLa Cells; Humans; Membrane Proteins; O(6)-Methylguanine-DNA Methyltransferase | 2012 |
SNAP-tag based proteomics approach for the study of the retrograde route.
Topics: Animals; Endocytosis; Guanine; HeLa Cells; Humans; Mass Spectrometry; Membrane Proteins; Protein Transport; Proteome; Proteomics; Receptors, Transferrin; Shiga Toxin; SNARE Proteins | 2012 |
MGMT inhibition restores ERα functional sensitivity to antiestrogen therapy.
Topics: Animals; Antineoplastic Agents; Apoptosis; Breast Neoplasms; Cell Cycle Checkpoints; Cell Line, Tumor; Cyclin-Dependent Kinase Inhibitor p21; DNA Modification Methylases; DNA Repair Enzymes; Drug Resistance, Neoplasm; Enzyme Inhibitors; Estrogen Antagonists; Estrogen Receptor alpha; Female; Gene Expression Regulation, Neoplastic; Guanine; Humans; Immunohistochemistry; Mice; Mice, Nude; Phosphorylation; Phosphoserine; Promoter Regions, Genetic; Protein Binding; Tamoxifen; Transcription, Genetic; Tumor Suppressor Protein p53; Tumor Suppressor Proteins | 2012 |
A strategy for selective O(6)-alkylguanine-DNA alkyltransferase depletion under hypoxic conditions.
Topics: Antineoplastic Agents; Cell Hypoxia; Cell Line; Enzyme Inhibitors; Guanine; HL-60 Cells; Humans; Hydrazines; Hydrogen Peroxide; O(6)-Methylguanine-DNA Methyltransferase; Oxidation-Reduction; Oxygen; Purines; Sulfonamides; Superoxides | 2012 |
Formation and repair of pyridyloxobutyl DNA adducts and their relationship to tumor yield in A/J mice.
Topics: Animals; Carcinogens; Deoxyguanosine; DNA Adducts; Enzyme Inhibitors; Female; Guanine; Lung; Lung Neoplasms; Mice; Mutagens; Nitrosamines; O(6)-Methylguanine-DNA Methyltransferase; Pyridines | 2012 |
Tumor-associated mutations in O⁶ -methylguanine DNA-methyltransferase (MGMT) reduce DNA repair functionality.
Topics: Animals; Antineoplastic Agents; DNA Modification Methylases; DNA Repair; DNA Repair Enzymes; Drug Resistance, Neoplasm; Female; Guanine; Humans; Mammary Neoplasms, Experimental; Mice; Mutation; Tumor Cells, Cultured; Tumor Suppressor Proteins | 2014 |
Hypoxia-selective O6-alkylguanine-DNA alkyltransferase inhibitors: design, synthesis, and evaluation of 6-(benzyloxy)-2-(aryldiazenyl)-9H-purines as prodrugs of O6-benzylguanine.
Topics: Cell Line, Tumor; Drug Design; Enzyme Inhibitors; Guanine; Humans; Magnetic Resonance Spectroscopy; O(6)-Methylguanine-DNA Methyltransferase; Oxidation-Reduction; Prodrugs | 2013 |
Temozolomide-mediated DNA methylation in human myeloid precursor cells: differential involvement of intrinsic and extrinsic apoptotic pathways.
Topics: Antineoplastic Agents, Alkylating; Apoptosis; Blotting, Western; CASP8 and FADD-Like Apoptosis Regulating Protein; Cell Cycle; Cells, Cultured; Cyclin-Dependent Kinase Inhibitor p21; Dacarbazine; DNA Damage; DNA Methylation; DNA, Mitochondrial; fas Receptor; Gene Expression Profiling; Guanine; Histones; Humans; Membrane Potential, Mitochondrial; Myeloid Progenitor Cells; O(6)-Methylguanine-DNA Methyltransferase; Oligonucleotide Array Sequence Analysis; Signal Transduction; Temozolomide; Tumor Suppressor Protein p53 | 2013 |
Tolerance of base pair size and shape in postlesion DNA synthesis.
Topics: Base Pair Mismatch; Base Pairing; Catalysis; DNA Adducts; DNA Damage; DNA Polymerase beta; DNA Primers; DNA Replication; Guanine; Guanosine Triphosphate; Kinetics; Models, Molecular; Sulfolobus solfataricus; Thermus | 2013 |
MGMT repletion after treatment of glioblastoma cells with temozolomide and O6-benzylguanine implicates NFκB and mutant p53.
Topics: Antineoplastic Agents, Alkylating; Cell Line, Tumor; Cell Survival; Dacarbazine; DNA Modification Methylases; DNA Repair Enzymes; Drug Resistance; Drug Synergism; Enzyme Inhibitors; Gene Expression Regulation, Neoplastic; Guanine; Humans; Mutation; NF-kappa B; Temozolomide; Tumor Suppressor Protein p53; Tumor Suppressor Proteins | 2013 |
Targeted delivery of dendritic polyglycerol-doxorubicin conjugates by scFv-SNAP fusion protein suppresses EGFR+ cancer cell growth.
Topics: Animals; Antineoplastic Agents; Cell Line, Tumor; Cell Survival; CHO Cells; Cricetinae; Cricetulus; Dendrimers; Doxorubicin; Drug Delivery Systems; Drug Screening Assays, Antitumor; Guanine; Humans; O(6)-Methylguanine-DNA Methyltransferase; Protein Binding; Recombinant Fusion Proteins; Single-Chain Antibodies | 2013 |
Cationic core-shell nanoparticles with carmustine contained within O⁶-benzylguanine shell for glioma therapy.
Topics: Animals; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Carmustine; Cations; Cell Line, Tumor; Chemical Phenomena; Disease Models, Animal; Drug Delivery Systems; Female; Glioblastoma; Guanine; Magnetic Resonance Imaging; Male; Nanoparticles; Rats; Rats, Inbred F344 | 2013 |
In vivo roles of conjugation with glutathione and O6-alkylguanine DNA-alkyltransferase in the mutagenicity of the bis-electrophiles 1,2-dibromoethane and 1,2,3,4-diepoxybutane in mice.
Topics: Animals; Butadienes; Buthionine Sulfoximine; Chromatography, High Pressure Liquid; DNA Adducts; DNA Mutational Analysis; Epoxy Compounds; Ethylene Dibromide; Glutathione; Glutathione Transferase; Guanine; Liver; Male; Mice; Mice, Transgenic; Mutagenicity Tests; Mutation; Mutation Rate; O(6)-Methylguanine-DNA Methyltransferase; Spectrometry, Mass, Electrospray Ionization | 2013 |
Cell-permeant and photocleavable chemical inducer of dimerization.
Topics: Cell Membrane; Cell Membrane Permeability; Cytosol; Endocytosis; Golgi Apparatus; Green Fluorescent Proteins; Guanine; HeLa Cells; Humans; Kinetics; Light; Lysosomes; Mitochondria; Photosensitizing Agents; Protein Multimerization; Protein Transport; Recombinant Fusion Proteins | 2014 |
Lentiviral MGMT(P140K)-mediated in vivo selection employing a ubiquitous chromatin opening element (A2UCOE) linked to a cellular promoter.
Topics: Animals; Antineoplastic Agents; Chromatin; Cloning, Molecular; DNA Copy Number Variations; Female; Gene Expression; Genetic Therapy; Genetic Vectors; Guanine; Hematopoietic Stem Cells; Lentivirus; Mice; Mice, Inbred C57BL; O(6)-Methylguanine-DNA Methyltransferase; Phosphoglycerate Kinase; Promoter Regions, Genetic; Sequence Analysis, DNA; Transgenes | 2014 |
Investigations on the effect of O(6)-benzylguanine on the formation of dG-dC interstrand cross-links induced by chloroethylnitrosoureas in human glioma cells using stable isotope dilution high-performance liquid chromatography electrospray ionization tand
Topics: Alkylating Agents; Cell Line, Tumor; Cell Survival; Chromatography, High Pressure Liquid; Deoxycytidine; Deoxyguanosine; DNA; DNA Damage; Ethylnitrosourea; Glioma; Guanine; Humans; Spectrometry, Mass, Electrospray Ionization; Tandem Mass Spectrometry | 2014 |
Complex conformational heterogeneity of the highly flexible O6-benzyl-guanine DNA adduct.
Topics: DNA Adducts; Guanine; Molecular Docking Simulation; Nucleic Acid Conformation | 2014 |
Exo1 independent DNA mismatch repair involves multiple compensatory nucleases.
Topics: Animals; Cell Line; Dacarbazine; DNA Mismatch Repair; DNA Repair Enzymes; DNA-Binding Proteins; Endodeoxyribonucleases; Endonucleases; Exodeoxyribonucleases; Fibroblasts; Guanine; Mice; Mice, Inbred C57BL; MRE11 Homologue Protein; Multifunctional Enzymes; Nuclear Proteins; Temozolomide; Up-Regulation | 2014 |
Controlled assembly of SNAP-PNA-fluorophore systems on DNA templates to produce fluorescence resonance energy transfer.
Topics: DNA; Electrophoresis, Polyacrylamide Gel; Fluorescence Resonance Energy Transfer; Fluorescent Dyes; Guanine; O(6)-Methylguanine-DNA Methyltransferase; Peptide Nucleic Acids; Staining and Labeling | 2014 |
Redox-responsive magnetic nanoparticle for targeted convection-enhanced delivery of O6-benzylguanine to brain tumors.
Topics: Animals; Brain Neoplasms; Glioblastoma; Guanine; Magnetic Resonance Imaging; Magnetics; Mice; Mice, Nude; Nanoparticles; Oxidation-Reduction | 2014 |
O6-alkylguanine postlesion DNA synthesis is correct with the right complement of hydrogen bonding.
Topics: Archaeal Proteins; Base Pairing; DNA Adducts; DNA Damage; DNA Polymerase beta; DNA Repair; DNA Replication; DNA, Archaeal; Gene Expression; Guanine; Hydrogen Bonding; Recombinant Proteins; Sulfolobus solfataricus | 2014 |
Inhibition of human aldehyde oxidase activity by diet-derived constituents: structural influence, enzyme-ligand interactions, and clinical relevance.
Topics: Aldehyde Oxidase; Catechin; Cytochrome P-450 Enzyme System; Diet; Enzyme Inhibitors; Food-Drug Interactions; Guanine; Humans; Ligands; Oxidation-Reduction; Quantitative Structure-Activity Relationship; Tea; Xenobiotics | 2015 |
MGMT inhibition suppresses survivin expression in pancreatic cancer.
Topics: Animals; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Biomarkers, Tumor; Blotting, Western; Cell Line, Tumor; Deoxycytidine; DNA Modification Methylases; DNA Repair Enzymes; Down-Regulation; Gemcitabine; Gene Expression Regulation, Neoplastic; Guanine; Humans; Inhibitor of Apoptosis Proteins; Male; Mice; Mice, Nude; Neoplasm Transplantation; Pancreatic Neoplasms; Random Allocation; RNA Interference; Survivin; Tumor Suppressor Protein p53; Tumor Suppressor Proteins | 2015 |
A specific photoimmunotheranostics agent to detect and eliminate skin cancer cells expressing EGFR.
Topics: Carcinoma, Squamous Cell; ErbB Receptors; Flow Cytometry; Fluorescent Dyes; Guanine; Humans; Immunotherapy; Indoles; Melanoma; Microscopy, Confocal; Organosilicon Compounds; Photochemotherapy; Photosensitizing Agents; Recombinant Fusion Proteins; Single-Chain Antibodies; Skin Neoplasms; Tumor Cells, Cultured | 2016 |
A Monoclonal Antibody That Discriminates Between SNAP-Tagged and CLIP-Tagged Proteins.
Topics: Antibodies, Monoclonal; Enzyme-Linked Immunosorbent Assay; Flow Cytometry; Fluorescent Dyes; Guanine; Recombinant Fusion Proteins | 2016 |
The use of an artificial nucleotide for polymerase-based recognition of carcinogenic O6-alkylguanine DNA adducts.
Topics: Base Pairing; Carcinogens; DNA; DNA Adducts; DNA Replication; DNA-Directed DNA Polymerase; Guanine; Kinetics; Models, Molecular; Nucleotides; Reproducibility of Results; Taq Polymerase; Templates, Genetic | 2016 |
Photoimmunotheranostic agents for triple-negative breast cancer diagnosis and therapy that can be activated on demand.
Topics: Cell Line, Tumor; Cell Survival; Chondroitin Sulfate Proteoglycans; Epithelial Cell Adhesion Molecule; ErbB Receptors; Female; Guanine; Humans; Immunoconjugates; Indoles; Isoindoles; Light; MCF-7 Cells; Membrane Proteins; Microscopy, Confocal; Organosilicon Compounds; Photochemotherapy; Photosensitizing Agents; Recombinant Fusion Proteins; Single-Chain Antibodies; Triple Negative Breast Neoplasms | 2016 |
Poor recognition of O6-isopropyl dG by MGMT triggers double strand break-mediated cell death and micronucleus induction in FANC-deficient cells.
Topics: Animals; B-Lymphocytes; Cell Death; Cell Line; Chickens; DNA Breaks, Double-Stranded; DNA Damage; DNA Modification Methylases; DNA Repair; DNA Repair Enzymes; Fanconi Anemia; Fanconi Anemia Complementation Group Proteins; Guanine; Humans; Mesylates; Micronuclei, Chromosome-Defective; RNA, Small Interfering; Signal Transduction; Tumor Suppressor Proteins | 2016 |
A Fluorescent Reporter for Single Cell Analysis of Gene Expression in Clostridium difficile.
Topics: Aldehydes; Anaerobiosis; Base Sequence; Benzyl Compounds; Clostridioides difficile; Cytosine; Fluorescent Dyes; Gene Expression Regulation, Bacterial; Genes, Reporter; Guanine; Humans; Indoles; Microscopy, Fluorescence; O(6)-Methylguanine-DNA Methyltransferase; Peptides; Plasmids; Pyridinium Compounds; Quaternary Ammonium Compounds; Single-Cell Analysis; Staining and Labeling | 2016 |
iRGD-mediated core-shell nanoparticles loading carmustine and O
Topics: Animals; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Carmustine; Cell Line, Tumor; Disease Models, Animal; Drug Carriers; Glioma; Guanine; Humans; Male; Mice; Mice, Inbred BALB C; Mice, Inbred ICR; Mice, Nude; Nanoparticles; Oligopeptides; Tumor Microenvironment | 2017 |
Specifically and wash-free labeling of SNAP-tag fused proteins with a hybrid sensor to monitor local micro-viscosity.
Topics: Alkyl and Aryl Transferases; Animals; Biosensing Techniques; Boron Compounds; Chlorocebus aethiops; COS Cells; Electron Transport Complex IV; Fluorescent Dyes; Guanine; Histones; Humans; Models, Molecular; Optical Imaging; Recombinant Fusion Proteins; Viscosity | 2017 |
Toward Discovery of Novel Microtubule Targeting Agents: A SNAP-tag-Based High-Content Screening Assay for the Analysis of Microtubule Dynamics and Cell Cycle Progression.
Topics: A549 Cells; Antineoplastic Agents; Cell Cycle; Dose-Response Relationship, Drug; Drug Discovery; Guanine; High-Throughput Screening Assays; Humans; Microtubules; Nocodazole; O(6)-Methylguanine-DNA Methyltransferase; Paclitaxel; Small Molecule Libraries; Tubulin; Tubulin Modulators | 2017 |
Efficient and precise editing of endogenous transcripts with SNAP-tagged ADARs.
Topics: Adenosine Deaminase; Animals; Base Sequence; Cell Line; Guanine; Humans; RNA Editing; RNA-Binding Proteins; SNARE Proteins | 2018 |
Hepatic Flavin-containing Monooxygenase and Aldehyde Oxidase Activities in Male Domestic Pigs at Different Ages.
Topics: Age Factors; Aldehyde Oxidase; Animals; Benzydamine; Guanine; Liver; Male; Microsomes, Liver; Oxidation-Reduction; Oxygenases; Sus scrofa | 2018 |
Evaluation of Carbazeran 4-Oxidation and
Topics: Aldehyde Oxidase; Biocatalysis; Biomarkers; Calibration; Carbamates; Cytochrome P-450 Enzyme System; Cytosol; Drug Development; Guanine; Humans; Microsomes, Liver; Oxidation-Reduction; Reference Standards | 2019 |
Beyond O
Topics: Fluorescent Dyes; Guanine; HeLa Cells; Humans; Mass Spectrometry; Substrate Specificity; Zinc | 2018 |
Methylation Tolerance-Based Functional Assay to Assess Variants of Unknown Significance in the MLH1 and MSH2 Genes and Identify Patients With Lynch Syndrome.
Topics: Biological Assay; Cell Line, Tumor; Colorectal Neoplasms, Hereditary Nonpolyposis; Computer Simulation; DNA Methylation; DNA Mismatch Repair; Feasibility Studies; Genetic Testing; Germ-Line Mutation; Guanine; Humans; Methylnitronitrosoguanidine; MutL Protein Homolog 1; MutS Homolog 2 Protein | 2019 |
Site-Specific Immobilization of β
Topics: Cinnamates; Depsides; Drug Discovery; Guanine; High-Throughput Screening Assays; Humans; Ligands; Perilla; Receptors, Adrenergic, beta-2; Rosmarinic Acid; Surface Properties | 2019 |
MGMT-inhibitor in combination with TGF-βRI inhibitor or CDK 4/6 inhibitor increases temozolomide sensitivity in temozolomide-resistant glioblastoma cells.
Topics: Aminopyridines; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Astrocytes; Benzimidazoles; Brain Neoplasms; Cell Cycle; Cell Survival; Cells, Cultured; Cyclin D; Cyclin-Dependent Kinase 4; Cyclin-Dependent Kinase 6; DNA Modification Methylases; DNA Repair Enzymes; Drug Resistance, Neoplasm; G1 Phase Cell Cycle Checkpoints; Glioblastoma; Guanine; Humans; Hypoxia-Inducible Factor 1, alpha Subunit; Neurons; Phosphatidylinositol 3-Kinases; Pyrazoles; Quinolines; Receptor, Transforming Growth Factor-beta Type I; Smad Proteins; Temozolomide; Tumor Suppressor Proteins | 2021 |
Site-Directed Mutagenesis at the Molybdenum Pterin Cofactor Site of the Human Aldehyde Oxidase: Interrogating the Kinetic Differences Between Human and Cynomolgus Monkey.
Topics: Aldehyde Oxidase; Animals; Coenzymes; Dantrolene; Drug Evaluation, Preclinical; Guanine; Macaca fascicularis; Metalloproteins; Molybdenum Cofactors; Mutagenesis, Site-Directed; Oxidation-Reduction; Pteridines; Sequence Homology, Amino Acid; Species Specificity; Substrate Specificity | 2020 |
The O6-methyguanine-DNA methyltransferase inhibitor O6-benzylguanine enhanced activity of temozolomide + irinotecan against models of high-risk neuroblastoma.
Topics: Animals; Antineoplastic Agents; Apoptosis; Cell Line, Tumor; Cell Survival; DNA Repair; Dose-Response Relationship, Drug; Drug Resistance, Neoplasm; Guanine; Humans; Irinotecan; Mice; Neuroblastoma; O(6)-Methylguanine-DNA Methyltransferase; Real-Time Polymerase Chain Reaction; RNA, Messenger; Temozolomide; Up-Regulation | 2021 |