Page last updated: 2024-11-01

o(6)-benzylguanine and Glioma

o(6)-benzylguanine has been researched along with Glioma in 21 studies

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

Glioma: Benign and malignant central nervous system neoplasms derived from glial cells (i.e., astrocytes, oligodendrocytes, and ependymocytes). Astrocytes may give rise to astrocytomas (ASTROCYTOMA) or glioblastoma multiforme (see GLIOBLASTOMA). Oligodendrocytes give rise to oligodendrogliomas (OLIGODENDROGLIOMA) and ependymocytes may undergo transformation to become EPENDYMOMA; CHOROID PLEXUS NEOPLASMS; or colloid cysts of the third ventricle. (From Escourolle et al., Manual of Basic Neuropathology, 2nd ed, p21)

Research Excerpts

ExcerptRelevanceReference
"To estimate the sustained (≥8 weeks) objective response rate in pediatric patients with recurrent or progressive high-grade gliomas (HGG, Stratum A) or brainstem gliomas (BSG, Stratum B) treated with the combination of O6-benzylguanine (O6BG) and temozolomide(®) (TMZ)."9.16A 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. ( Balis, FM; Berg, SL; Boyett, JM; Geyer, JR; Goldman, S; Gururangan, S; Kun, LE; McLendon, RE; Minturn, JE; Packer, RJ; Pollack, IF; Poussaint, TY; Wallace, D; Warren, KE, 2012)
"This phase II trial was designed to define the role of O(6)-benzylguanine (O(6)-BG) in restoring temozolomide sensitivity in patients with recurrent or progressive, temozolomide-resistant malignant glioma and to evaluate the safety of administering O(6)-BG in combination with temozolomide."9.14Phase II trial of temozolomide plus o6-benzylguanine in adults with recurrent, temozolomide-resistant malignant glioma. ( 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, 2009)
"This phase I clinical trial conducted with patients who had recurrent or progressive malignant glioma (MG) was designed to determine the maximum tolerated dose (MTD) and toxicity of three different 5-day dosing regimens of temozolomide (TMZ) in combination with O(6)-benzylguanine (O(6)-BG)."9.14Phase I trial of temozolomide plus O6-benzylguanine 5-day regimen with recurrent malignant glioma. ( 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, 2009)
"We conducted a phase II trial of carmustine (BCNU) plus the O(6)-alkylguanine-DNA alkyltransferase inhibitor O(6)-benzylguanine (O(6)-BG) to define the activity and toxicity of this regimen in the treatment of adults with progressive or recurrent malignant glioma resistant to nitrosoureas."9.10Phase II trial of carmustine plus O(6)-benzylguanine for patients with nitrosourea-resistant recurrent or progressive malignant glioma. ( 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, 2002)
"Temozolomide (TMZ, 3,4-dihydro-3-methyl-4-oxoimidazo [5,1-d]-as-tetrazine-8-carboxamide) is a new alkylating agent with promising antitumour efficacy for malignant gliomas."7.72Inhibition of telomerase activity in malignant glioma cells correlates with their sensitivity to temozolomide. ( Germano, IM; Ito, H; Kanzawa, T; Kondo, S; Kondo, Y; Kyo, S, 2003)
"Temozolomide (TMZ) is a newly approved alkylating agent for the treatment of malignant gliomas."7.71Biochemical changes associated with a multidrug-resistant phenotype of a human glioma cell line with temozolomide-acquired resistance. ( Berman, E; Gallo, JM; Ma, J; Murphy, M; O'Dwyer, PJ; Reed, K, 2002)
"Temozolomide (TMZ) is a DNA alkylating agent currently used as adjuvant treatment for anaplastic astrocytomas."5.32Inhibition of DNA repair for sensitizing resistant glioma cells to temozolomide. ( Bedwell, J; Germano, IM; Kanzawa, T; Kondo, S; Kondo, Y, 2003)
"To estimate the sustained (≥8 weeks) objective response rate in pediatric patients with recurrent or progressive high-grade gliomas (HGG, Stratum A) or brainstem gliomas (BSG, Stratum B) treated with the combination of O6-benzylguanine (O6BG) and temozolomide(®) (TMZ)."5.16A 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. ( Balis, FM; Berg, SL; Boyett, JM; Geyer, JR; Goldman, S; Gururangan, S; Kun, LE; McLendon, RE; Minturn, JE; Packer, RJ; Pollack, IF; Poussaint, TY; Wallace, D; Warren, KE, 2012)
"This phase II trial was designed to define the role of O(6)-benzylguanine (O(6)-BG) in restoring temozolomide sensitivity in patients with recurrent or progressive, temozolomide-resistant malignant glioma and to evaluate the safety of administering O(6)-BG in combination with temozolomide."5.14Phase II trial of temozolomide plus o6-benzylguanine in adults with recurrent, temozolomide-resistant malignant glioma. ( 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, 2009)
"This phase I clinical trial conducted with patients who had recurrent or progressive malignant glioma (MG) was designed to determine the maximum tolerated dose (MTD) and toxicity of three different 5-day dosing regimens of temozolomide (TMZ) in combination with O(6)-benzylguanine (O(6)-BG)."5.14Phase I trial of temozolomide plus O6-benzylguanine 5-day regimen with recurrent malignant glioma. ( 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, 2009)
"We conducted a phase II trial of carmustine (BCNU) plus the O(6)-alkylguanine-DNA alkyltransferase inhibitor O(6)-benzylguanine (O(6)-BG) to define the activity and toxicity of this regimen in the treatment of adults with progressive or recurrent malignant glioma resistant to nitrosoureas."5.10Phase II trial of carmustine plus O(6)-benzylguanine for patients with nitrosourea-resistant recurrent or progressive malignant glioma. ( 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, 2002)
"DNA alkylating agents including temozolomide (TMZ) and 1,3-bis[2-chloroethyl]-1-nitroso-urea (BCNU) are the most common form of chemotherapy in the treatment of gliomas."3.74The Fanconi anemia (FA) pathway confers glioma resistance to DNA alkylating agents. ( Chen, CC; D'Andrea, A; Taniguchi, T, 2007)
"Temozolomide (TMZ)-induced O6-methylguanine (MG) DNA lesions, if not removed by MG-DNA methyltransferase (MGMT), mispair with thymine, trigger rounds of futile mismatch repair (MMR), and in glioma cells lead to prolonged G2-M arrest and ultimately cell death."3.72Delayed repletion of O6-methylguanine-DNA methyltransferase resulting in failure to protect the human glioblastoma cell line SF767 from temozolomide-induced cytotoxicity. ( Berger, MS; Erickson, LC; Hirose, Y; Kreklau, EL; Pieper, RO, 2003)
"Temozolomide (TMZ, 3,4-dihydro-3-methyl-4-oxoimidazo [5,1-d]-as-tetrazine-8-carboxamide) is a new alkylating agent with promising antitumour efficacy for malignant gliomas."3.72Inhibition of telomerase activity in malignant glioma cells correlates with their sensitivity to temozolomide. ( Germano, IM; Ito, H; Kanzawa, T; Kondo, S; Kondo, Y; Kyo, S, 2003)
"Temozolomide (TMZ) is a newly approved alkylating agent for the treatment of malignant gliomas."3.71Biochemical changes associated with a multidrug-resistant phenotype of a human glioma cell line with temozolomide-acquired resistance. ( Berman, E; Gallo, JM; Ma, J; Murphy, M; O'Dwyer, PJ; Reed, K, 2002)
"Temozolomide (TMZ) is a DNA alkylating agent currently used as adjuvant treatment for anaplastic astrocytomas."1.32Inhibition of DNA repair for sensitizing resistant glioma cells to temozolomide. ( Bedwell, J; Germano, IM; Kanzawa, T; Kondo, S; Kondo, Y, 2003)

Research

Studies (21)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's4 (19.05)18.2507
2000's14 (66.67)29.6817
2010's3 (14.29)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
Sun, G1
Zhao, L1
Fan, T1
Li, S1
Zhong, R1
Liu, C1
Yao, S1
Li, X1
Wang, F1
Jiang, Y1
Quinn, JA5
Jiang, SX3
Reardon, DA5
Desjardins, A4
Vredenburgh, JJ3
Rich, JN3
Gururangan, S6
Friedman, AH4
Bigner, DD4
Sampson, JH5
McLendon, RE6
Herndon, JE5
Walker, A2
Friedman, HS5
Warren, KE1
Geyer, JR1
Poussaint, TY1
Wallace, D1
Balis, FM1
Berg, SL1
Packer, RJ1
Goldman, S1
Minturn, JE1
Pollack, IF1
Boyett, JM1
Kun, LE1
Hirose, Y1
Kreklau, EL3
Erickson, LC3
Berger, MS1
Pieper, RO1
Kanzawa, T2
Germano, IM2
Kondo, Y2
Ito, H1
Kyo, S1
Kondo, S2
Bedwell, J1
Pollok, KE1
Bailey, BJ1
Liu, N1
Hartwell, JR1
Williams, DA2
Weingart, J3
Brem, H2
Dolan, ME5
Delaney, SM2
Vredenburgh, J1
Rich, J1
Pegg, AE4
Moschel, RC4
Birch, R1
Provenzale, JM2
Dancey, JE1
Maxwell, J1
Tourt-Uhlig, S2
Chen, CC1
Taniguchi, T1
D'Andrea, A1
Grossman, SA1
Carson, KA1
Fisher, JD1
Rosenblum, ML1
Olivi, A1
Judy, K1
Tatter, SB1
Mineura, K2
Izumi, I1
Watanabe, K1
Kowada, M2
Kohda, K2
Ikenaga, M1
Fukuchi, M1
Terashima, I1
Kurpad, C1
Rhines, LD1
Sampath, P1
Tyler, BM1
Kokkinakis, DM1
Bocangel, DB1
Schold, SC1
Ma, J1
Murphy, M1
O'Dwyer, PJ1
Berman, E1
Reed, K1
Gallo, JM1
Pluda, J1
Delaney, S1
Kaplan, R1
Colvin, OM1
Haglund, MM1
Stine, L1
Mitchell, RB1

Clinical Trials (2)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Phase I Trial of Temodar Plus O6-Benzylguanine (O6-BG) (NSC 637037) in the Treatment of Patients With Newly Diagnosed (Part 1) or Recurrent/Progressive (Parts 1 and 2) Cerebral Anaplastic Gliomas[NCT00006474]Phase 10 participants Interventional2001-03-31Completed
Phase I GLIADEL and Continuous Infusion of Intravenous O6-Benzylguanine Trial in Patients With Recurrent Malignant Glioma[NCT00004892]Phase 10 participants Interventional2000-04-30Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trials

7 trials available for o(6)-benzylguanine and Glioma

ArticleYear
Phase II trial of temozolomide plus o6-benzylguanine in adults with recurrent, temozolomide-resistant malignant glioma.
    Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2009, Mar-10, Volume: 27, Issue:8

    Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Dacarbazine; Drug Resi

2009
Phase I trial of temozolomide plus O6-benzylguanine 5-day regimen with recurrent malignant glioma.
    Neuro-oncology, 2009, Volume: 11, Issue:5

    Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Dacarbazine; Female; G

2009
Phase 1 trial of temozolomide plus irinotecan plus O6-benzylguanine in adults with recurrent malignant glioma.
    Cancer, 2009, Jul-01, Volume: 115, Issue:13

    Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Camptothecin; Dacarbaz

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.
    Journal of neuro-oncology, 2012, Volume: 106, Issue:3

    Topics: Adolescent; Antineoplastic Agents; Brain Stem Neoplasms; Child; Child, Preschool; Dacarbazine; DNA M

2012
Phase I trial of temozolomide plus O6-benzylguanine for patients with recurrent or progressive malignant glioma.
    Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2005, Oct-01, Volume: 23, Issue:28

    Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Dacarbazine; Disease P

2005
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.
    Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2007, Feb-01, Volume: 25, Issue:4

    Topics: Adult; Aged; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms;

2007
Phase II trial of carmustine plus O(6)-benzylguanine for patients with nitrosourea-resistant recurrent or progressive malignant glioma.
    Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2002, May-01, Volume: 20, Issue:9

    Topics: Adult; Aged; Antineoplastic Combined Chemotherapy Protocols; Area Under Curve; Brain Neoplasms; Carm

2002

Other Studies

14 other studies available for o(6)-benzylguanine and Glioma

ArticleYear
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
    Chemical research in toxicology, 2014, Jul-21, Volume: 27, Issue:7

    Topics: Alkylating Agents; Cell Line, Tumor; Cell Survival; Chromatography, High Pressure Liquid; Deoxycytid

2014
iRGD-mediated core-shell nanoparticles loading carmustine and O
    Journal of drug targeting, 2017, Volume: 25, Issue:3

    Topics: Animals; Antineoplastic Combined Chemotherapy Protocols; Brain Neoplasms; Carmustine; Cell Line, Tum

2017
Delayed repletion of O6-methylguanine-DNA methyltransferase resulting in failure to protect the human glioblastoma cell line SF767 from temozolomide-induced cytotoxicity.
    Journal of neurosurgery, 2003, Volume: 98, Issue:3

    Topics: Antineoplastic Agents; Antineoplastic Agents, Alkylating; Cell Cycle Proteins; Cell Survival; Colony

2003
Inhibition of telomerase activity in malignant glioma cells correlates with their sensitivity to temozolomide.
    British journal of cancer, 2003, Sep-01, Volume: 89, Issue:5

    Topics: Antineoplastic Agents, Alkylating; Cell Death; Cell Division; Dacarbazine; DNA-Binding Proteins; Dos

2003
Inhibition of DNA repair for sensitizing resistant glioma cells to temozolomide.
    Journal of neurosurgery, 2003, Volume: 99, Issue:6

    Topics: Antineoplastic Agents, Alkylating; Apoptosis; Cell Line, Tumor; Cell Survival; Dacarbazine; DNA Repa

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.
    Molecular cancer therapeutics, 2003, Volume: 2, Issue:12

    Topics: Animals; Antineoplastic Agents, Alkylating; Bone Marrow; Brain Neoplasms; Carmustine; Glioma; Guanin

2003
The Fanconi anemia (FA) pathway confers glioma resistance to DNA alkylating agents.
    Journal of molecular medicine (Berlin, Germany), 2007, Volume: 85, Issue:5

    Topics: Antineoplastic Agents, Alkylating; Brain Neoplasms; Carmustine; Cell Line, Tumor; Curcumin; Dacarbaz

2007
Potential of O6-methylguanine or O6-benzylguanine in the enhancement of chloroethylnitrosourea cytotoxicity on brain tumours.
    Acta neurochirurgica, 1994, Volume: 128, Issue:1-4

    Topics: Animals; Antibodies, Monoclonal; Antineoplastic Agents; Basal Ganglia; Brain Neoplasms; Cell Count;

1994
[Study on potentiation of nitrosourea-cytotoxicity by DNA repair enzyme inhibitors in human brain tumor cells].
    No to shinkei = Brain and nerve, 1997, Volume: 49, Issue:6

    Topics: Antineoplastic Agents; Antineoplastic Agents, Alkylating; Brain Neoplasms; Cell Survival; Drug Resis

1997
Prolonged inhibition of O(6)-methylguanine DNA methyltransferase in human tumor cells by O(6)-benzylguanine in vitro and in vivo.
    The Journal of pharmacology and experimental therapeutics, 1999, Volume: 291, Issue:3

    Topics: Animals; Antineoplastic Agents, Alkylating; Brain Neoplasms; Carmustine; Enzyme Inhibitors; Female;

1999
O6-benzylguanine potentiates the antitumor effect of locally delivered carmustine against an intracranial rat glioma.
    Cancer research, 2000, Nov-15, Volume: 60, Issue:22

    Topics: Animals; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Brain Ne

2000
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.
    Clinical cancer research : an official journal of the American Association for Cancer Research, 2001, Volume: 7, Issue:2

    Topics: Animals; Antineoplastic Agents, Alkylating; Antineoplastic Combined Chemotherapy Protocols; Apoptosi

2001
Biochemical changes associated with a multidrug-resistant phenotype of a human glioma cell line with temozolomide-acquired resistance.
    Biochemical pharmacology, 2002, Apr-01, Volume: 63, Issue:7

    Topics: Adaptor Proteins, Signal Transducing; Adenosine Triphosphatases; Antineoplastic Agents, Alkylating;

2002
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.
    Cancer communications, 1990, Volume: 2, Issue:11

    Topics: Animals; Brain Neoplasms; Cricetinae; Dose-Response Relationship, Drug; Female; Glioma; Guanine; Hum

1990