Cited by 526Chromatin Remodeling and CancerPARP inhibition in cancer therapyDNA Repair Mechanisms

ARID1A Deficiency Impairs the DNA Damage Checkpoint and Sensitizes Cells to PARP Inhibitors

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Shen, Jianfeng, Peng, Yang, Wei, Leizhen, Zhang, Wei, Yang, Lin, Lan, Li, Kapoor, Prabodh, Ju, Zhenlin +8 more·2015·Cancer Discovery

Published version of a preprint

Abstract

ARID1A, SWI/SNF chromatin remodeling complex subunit, is a recently identified tumor suppressor that is mutated in a broad spectrum of human cancers. Thus, it is of fundamental clinical importance to understand its molecular functions and determine whether ARID1A deficiency can be exploited therapeutically. In this article, we report a key function of ARID1A in regulating the DNA damage checkpoint. ARID1A is recruited to DNA double-strand breaks (DSB) via its interaction with the upstream DNA damage checkpoint kinase ATR. At the molecular level, ARID1A facilitates efficient processing of DSB to single-strand ends and sustains DNA damage signaling. Importantly, ARID1A deficiency sensitizes cancer cells to PARP inhibitors in vitro and in vivo, providing a potential therapeutic strategy for patients with ARID1A-mutant tumors. Significance: ARID1A has been identified as one of the most frequently mutated genes across human cancers. Our data suggest that clinical utility of PARP inhibitors might be extended beyond patients with BRCA mutations to a larger group of patients with ARID1A-mutant tumors, which may exhibit therapeutic vulnerability to PARP inhibitors. Cancer Discov; 5(7); 752–67. ©2015 AACR. This article is highlighted in the In This Issue feature, p. 681

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Authors
Shen, J., Peng, Y., Wei, L., Zhang, W., Yang, L., Lan, L., Kapoor, P., Ju, Z., Mo, Q., Shih, I.-M., Uray, I. P., Wu, X., Brown, P. H., Shen, X., Mills, G. B., & Peng, G.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • University of Pittsburgh (US)
  • Baylor College of Medicine (US)
  • Johns Hopkins University (US)
  • 1Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Corresponding author
Peng, Guang
Venue
Cancer Discovery
Published
2015-07-01
Volume
5
Issue
7
Pages
752-767
ISSN
  • 2159-8274 (ISSN-L)
  • 2159-8290
OpenAlex
W2123454509
Cited by
522
References
61
Citations by year
2026: 33 · 2025: 53 · 2024: 59 · 2023: 56 · 2022: 53 · 2021: 71 · 2020: 62 · 2019: 43 · 2018: 36 · 2017: 28 · 2016: 24 · 2015: 3
FWCI
13.16
Type
journal article
Language
en
Open access
Locations
  • Cancer Discovery (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • University of Debrecen Electronic Archive (University of Debrecen) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Cancer Institute (CA 016672, P50CA098258, P50-CA83639, R00CA149186, K99CA149186, P50CA083639, P30CA016672, R01CA181663)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
  • Health Sciences › Medicine › Oncology › PARP inhibition in cancer therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
ARID1A, SWI/SNF complex, DNA damage checkpoint, PARP inhibitors, ATR kinase, DNA double-strand breaks, tumor suppressor, drug sensitivity
MeSH terms
Poly(ADP-ribose) Polymerase Inhibitors, Animals, Breast Neoplasms, DNA Damage, DNA-Binding Proteins, Female, Humans, Lung Neoplasms, Male, Nuclear Proteins, Transcription Factors, Xenograft Model Antitumor Assays, HCT116 Cells, Cell Line, Tumor, Mice, DNA Breaks, Double-Stranded, Ataxia Telangiectasia Mutated Proteins

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