Cited by 194DNA Repair MechanismsCancer therapeutics and mechanismsPARP inhibition in cancer therapy

A Small Molecule Targeting Mutagenic Translesion Synthesis Improves Chemotherapy

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Wojtaszek, Jessica L., Chatterjee, Nimrat, Najeeb, Javaria, Ramos, Azucena, Lee, Minhee, Bian, Ke, Xue, Jenny Y., Fenton, Benjamin A. +6 more·2019·Cell

Abstract

Intrinsic and acquired drug resistance and induction of secondary malignancies limit successful chemotherapy. Because mutagenic translesion synthesis (TLS) contributes to chemoresistance as well as treatment-induced mutations, targeting TLS is an attractive avenue for improving chemotherapeutics. However, development of small molecules with high specificity and in vivo efficacy for mutagenic TLS has been challenging. Here, we report the discovery of a small-molecule inhibitor, JH-RE-06, that disrupts mutagenic TLS by preventing recruitment of mutagenic POL ζ. Remarkably, JH-RE-06 targets a nearly featureless surface of REV1 that interacts with the REV7 subunit of POL ζ. Binding of JH-RE-06 induces REV1 dimerization, which blocks the REV1-REV7 interaction and POL ζ recruitment. JH-RE-06 inhibits mutagenic TLS and enhances cisplatin-induced toxicity in cultured human and mouse cell lines. Co-administration of JH-RE-06 with cisplatin suppresses the growth of xenograft human melanomas in mice, establishing a framework for developing TLS inhibitors as a novel class of chemotherapy adjuvants.

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Authors
Wojtaszek, J. L., Chatterjee, N., Najeeb, J., Ramos, A., Lee, M., Bian, K., Xue, J. Y., Fenton, B. A., Park, H., Li, D., Hemann, M. T., Hong, J., Walker, G. C., & Zhou, P.
Affiliations
  • Duke Medical Center (US)
  • Massachusetts Institute of Technology (US)
  • Koch Institute for Integrative Cancer Research At MIT (US)
  • Duke University (US)
  • University of Rhode Island (US)
Corresponding author
  • Hemann, Michael T.
  • Hong, Jiyong
  • Walker, Graham C.
  • Zhou, Pei
Venue
Cell
Publisher
Elsevier BV
Published
2019-06
Volume
178
Issue
1
Pages
152-159.e11
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2948035094
Cited by
194
References
39
Citations by year
2026: 22 · 2025: 20 · 2024: 42 · 2023: 23 · 2022: 29 · 2021: 18 · 2020: 32 · 2019: 8
FWCI
7.19
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-nd)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • Alexander and Margaret Stewart Trust
  • Duke University
  • National Cancer Institute
  • National Institute of Environmental Health Sciences
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cancer therapeutics and mechanisms
  • Health Sciences › Medicine › Oncology › PARP inhibition in cancer therapy
Keywords
Rev1, REV7, small molecule inhibitors, cisplatin, chemoresistance, melanoma, adjuvant chemotherapy, protein dimerization, drug resistance
MeSH terms
Y-Family DNA Polymerases, Animals, Antineoplastic Agents, Cell Survival, Cisplatin, DNA Damage, DNA-Directed DNA Polymerase, Female, Humans, Mice, Nude, Mice, Transgenic, Neoplasms, Nucleotidyltransferases, Quinolines, Transfection, Mutagenesis, Xenograft Model Antitumor Assays, Cell Line, Tumor, Tumor Burden, Mice, Gene Knockdown Techniques, Mad2 Proteins

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