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o(6)-benzylguanine and Melanoma

o(6)-benzylguanine has been researched along with Melanoma in 8 studies

O(6)-benzylguanine: a suicide inhibitor of O(6)-methylguanine-DNA methyltransferase activity

Melanoma: A malignant neoplasm derived from cells that are capable of forming melanin, which may occur in the skin of any part of the body, in the eye, or, rarely, in the mucous membranes of the genitalia, anus, oral cavity, or other sites. It occurs mostly in adults and may originate de novo or from a pigmented nevus or malignant lentigo. Melanomas frequently metastasize widely, and the regional lymph nodes, liver, lungs, and brain are likely to be involved. The incidence of malignant skin melanomas is rising rapidly in all parts of the world. (Stedman, 25th ed; from Rook et al., Textbook of Dermatology, 4th ed, p2445)

Research Excerpts

ExcerptRelevanceReference
"1,3-Bis(2-chloroethyl)-1-nitrosourea (BCNU) induces DNA damage via a chloroethyl adduct at the O(6) position of guanine, which can be repaired by O(6)-alkylguanine DNA alkyltransferase (AGT) expressed in melanoma."9.11Phase II trial of the O6-alkylguanine DNA alkyltransferase inhibitor O6-benzylguanine and 1,3-bis(2-chloroethyl)-1-nitrosourea in advanced melanoma. ( Dolan, E; Gajewski, TF; Gerson, SL; Lin, S; Liu, L; Sosman, J; Vokes, EE, 2005)
" Aim of the present study was to investigate the molecular mechanisms underlying acquired resistance of melanoma cells to TMZ and the effect of O6-benzylguanine (BG), a specific MGMT inhibitor, on the development of a TMZ-resistant phenotype."7.73A 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. ( 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, 2006)
"Fotemustine is a third generation chloroethylnitrosourea that has demonstrated significant antitumoral effects in malignant melanoma."7.72Cytotoxicity, DNA damage, and apoptosis induced by new fotemustine analogs on human melanoma cells in relation to O6-methylguanine DNA-methyltransferase expression. ( Cupissol, D; Cuq, P; Depeille, P; Evrard, A; Montero, JL; Passagne, I; Vian, L; Winum, JY, 2003)
"1,3-Bis(2-chloroethyl)-1-nitrosourea (BCNU) induces DNA damage via a chloroethyl adduct at the O(6) position of guanine, which can be repaired by O(6)-alkylguanine DNA alkyltransferase (AGT) expressed in melanoma."5.11Phase II trial of the O6-alkylguanine DNA alkyltransferase inhibitor O6-benzylguanine and 1,3-bis(2-chloroethyl)-1-nitrosourea in advanced melanoma. ( Dolan, E; Gajewski, TF; Gerson, SL; Lin, S; Liu, L; Sosman, J; Vokes, EE, 2005)
" Aim of the present study was to investigate the molecular mechanisms underlying acquired resistance of melanoma cells to TMZ and the effect of O6-benzylguanine (BG), a specific MGMT inhibitor, on the development of a TMZ-resistant phenotype."3.73A 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. ( 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, 2006)
"Fotemustine is a third generation chloroethylnitrosourea that has demonstrated significant antitumoral effects in malignant melanoma."3.72Cytotoxicity, DNA damage, and apoptosis induced by new fotemustine analogs on human melanoma cells in relation to O6-methylguanine DNA-methyltransferase expression. ( Cupissol, D; Cuq, P; Depeille, P; Evrard, A; Montero, JL; Passagne, I; Vian, L; Winum, JY, 2003)
" In melanoma specimens taken from a patient 3 h post-treatment with temozolomide, MGMT levels were reduced by 70%."3.69Intracellular Localization and intercellular heterogeneity of the human DNA repair protein O(6)-methylguanine-DNA methyltransferase. ( 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, 1996)

Research

Studies (8)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's1 (12.50)18.2507
2000's6 (75.00)29.6817
2010's1 (12.50)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
von Felbert, V1
Bauerschlag, D1
Maass, N1
Bräutigam, K1
Meinhold-Heerlein, I1
Woitok, M1
Barth, S1
Hussain, AF1
Passagne, I1
Evrard, A1
Winum, JY1
Depeille, P1
Cuq, P1
Montero, JL1
Cupissol, D1
Vian, L1
Gajewski, TF1
Sosman, J1
Gerson, SL1
Liu, L1
Dolan, E1
Lin, S1
Vokes, EE1
Alvino, E1
Castiglia, D1
Caporali, S1
Pepponi, R1
Caporaso, P1
Lacal, PM1
Marra, G1
Fischer, F1
Zambruno, G1
Bonmassar, E1
Jiricny, J1
D'Atri, S1
Fontijn, D1
Adema, AD1
Bhakat, KK1
Pinedo, HM1
Peters, GJ1
Boven, E1
Belanich, M1
Randall, T1
Pastor, MA1
Kibitel, JT1
Alas, LG1
Dolan, ME1
Schold, SC1
Gander, M1
Lejeune, FJ1
Li, BF1
White, AB1
Wasserman, P1
Citron, ML1
Yarosh, DB1
Middleton, MR1
Kelly, J1
Thatcher, N1
Donnelly, DJ1
McElhinney, RS1
McMurry, TB1
McCormick, JE1
Margison, GP1
Christmann, M1
Pick, M1
Lage, H1
Schadendorf, D1
Kaina, B1

Trials

1 trial available for o(6)-benzylguanine and Melanoma

ArticleYear
Phase II trial of the O6-alkylguanine DNA alkyltransferase inhibitor O6-benzylguanine and 1,3-bis(2-chloroethyl)-1-nitrosourea in advanced melanoma.
    Clinical cancer research : an official journal of the American Association for Cancer Research, 2005, Nov-01, Volume: 11, Issue:21

    Topics: Adult; Aged; Aged, 80 and over; Antineoplastic Agents; Antineoplastic Agents, Alkylating; Antineopla

2005

Other Studies

7 other studies available for o(6)-benzylguanine and Melanoma

ArticleYear
A specific photoimmunotheranostics agent to detect and eliminate skin cancer cells expressing EGFR.
    Journal of cancer research and clinical oncology, 2016, Volume: 142, Issue:5

    Topics: Carcinoma, Squamous Cell; ErbB Receptors; Flow Cytometry; Fluorescent Dyes; Guanine; Humans; Immunot

2016
Cytotoxicity, DNA damage, and apoptosis induced by new fotemustine analogs on human melanoma cells in relation to O6-methylguanine DNA-methyltransferase expression.
    The Journal of pharmacology and experimental therapeutics, 2003, Volume: 307, Issue:2

    Topics: Antineoplastic Agents; Apoptosis; Carmustine; DNA Damage; Enzyme Inhibitors; Enzyme-Linked Immunosor

2003
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.
    International journal of oncology, 2006, Volume: 29, Issue:4

    Topics: Antineoplastic Agents; Base Pair Mismatch; Dacarbazine; DNA Methylation; DNA Repair; Drug Resistance

2006
O6-methylguanine-DNA-methyltransferase promoter demethylation is involved in basic fibroblast growth factor induced resistance against temozolomide in human melanoma cells.
    Molecular cancer therapeutics, 2007, Volume: 6, Issue:10

    Topics: Antineoplastic Agents; Antineoplastic Agents, Alkylating; Base Pair Mismatch; Blotting, Western; Dac

2007
Intracellular Localization and intercellular heterogeneity of the human DNA repair protein O(6)-methylguanine-DNA methyltransferase.
    Cancer chemotherapy and pharmacology, 1996, Volume: 37, Issue:6

    Topics: Animals; Cell Compartmentation; Cell Nucleus; Cytoplasm; Dacarbazine; DNA Repair; Enzyme Inhibitors;

1996
O(6)-(4-bromothenyl)guanine improves the therapeutic index of temozolomide against A375M melanoma xenografts.
    International journal of cancer, 2000, Jan-15, Volume: 85, Issue:2

    Topics: Adenosine Triphosphatases; Animals; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemo

2000
Acquired resistance of melanoma cells to the antineoplastic agent fotemustine is caused by reactivation of the DNA repair gene MGMT.
    International journal of cancer, 2001, Apr-01, Volume: 92, Issue:1

    Topics: Antineoplastic Agents; Azacitidine; Blotting, Southern; DNA Methylation; DNA Repair; Drug Resistance

2001