Cited by 126DNA Repair MechanismsGlioma Diagnosis and TreatmentPARP inhibition in cancer therapy

Complex DNA repair pathways as possible therapeutic targets to overcome temozolomide resistance in glioblastoma

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Yoshimoto, Koji, Mizoguchi, Masahiro, Hata, Nobuhiro, Murata, Hideki, Hatae, Ryusuke, Amano, Toshiyuki, Nakamizo, Akira, Sasaki, Tomio·2012·Frontiers in Oncology

Abstract

Many conventional chemotherapeutic drugs exert their cytotoxic function by inducing DNA damage in the tumor cell. Therefore, a cell-inherent DNA repair pathway, which reverses the DNA-damaging effect of the cytotoxic drugs, can mediate therapeutic resistance to chemotherapy. The monofunctional DNA-alkylating agent temozolomide (TMZ) is a commonly used chemotherapeutic drug and the gold standard treatment for glioblastoma (GBM). Although the activity of DNA repair protein O6-methylguanine-DNA methyltransferase (MGMT) has been described as the main modulator to determine the sensitivity of GBM to TMZ, a subset of GBM does not respond despite MGMT inactivation, suggesting that another DNA repair mechanism may also modulate the tolerance to TMZ. Considerable interest has focused on MGMT, mismatch repair (MMR), and the base excision repair (BER) pathway in the mechanism of mediating TMZ resistance, but emerging roles for the DNA strand-break repair pathway have been demonstrated. In the first part of this review article, we briefly review the significant role of MGMT, MMR, and the BER pathway in the tolerance to TMZ; in the last part, we review the recent publications that demonstrate possible roles of DNA strand-break repair pathways, such as single-strand break repair and double-strand break repair, as well as the Fanconi anemia pathway in the repair process after alkylating agent-based therapy. It is possible that all of these repair pathways have a potential to modulate the sensitivity to TMZ and aid in overcoming the therapeutic resistance in the clinic.

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  1. Miknyoczki S. J. Jones-Bolin S. Pritchard S. Hunter K. Zhao H. Wan W. H. (2003). Chemopotentiation of temozolomide, irinotecan, and cisplatin activity by CEP-6800, a poly(ADP-ribose) polymerase inhibitor. Mol. Cancer Ther. 2 371– 382 12700281

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Authors
Yoshimoto, K., Mizoguchi, M., Hata, N., Murata, H., Hatae, R., Amano, T., Nakamizo, A., & Sasaki, T.
Affiliations
Kyushu University (JP)
Corresponding author
Yoshimoto, Koji
Venue
Frontiers in Oncology
Published
2012
Volume
2
Pages
186-186
ISSN
2234-943X (ISSN-L)
OpenAlex
W2088228543
Cited by
126
References
109
Citations by year
2026: 7 · 2025: 10 · 2024: 11 · 2023: 9 · 2022: 14 · 2021: 14 · 2020: 11 · 2019: 9 · 2018: 12 · 2017: 7 · 2016: 8 · 2015: 7 · 2014: 3 · 2013: 4
FWCI
1.80
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Oncology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology
  • Japan Society for the Promotion of Science (22390280, 23659691)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Health Sciences › Medicine › Genetics › Glioma Diagnosis and Treatment
  • Health Sciences › Medicine › Oncology › PARP inhibition in cancer therapy
Keywords
temozolomide resistance, glioblastoma, DNA repair pathways, O6-methylguanine-DNA methyltransferase, DNA mismatch repair, base excision repair, single-strand break repair, DNA double-strand break repair, Fanconi anemia pathway, alkylating agents, chemoresistance, therapeutic target

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