Cited by 84Chromatin Remodeling and CancerPARP inhibition in cancer therapyDNA Repair Mechanisms

Treating ARID1A mutated cancers by harnessing synthetic lethality and DNA damage response

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Mandal, Jayaprakash, Mandal, Prativa, Wang, Tian-Li, Shih, Ie-Ming·2022·Journal of Biomedical Science

Abstract

Chromatin remodeling is an essential cellular process for organizing chromatin structure into either open or close configuration at specific chromatin locations by orchestrating and modifying histone complexes. This task is responsible for fundamental cell physiology including transcription, DNA replication, methylation, and damage repair. Aberrations in this activity have emerged as epigenomic mechanisms in cancer development that increase tumor clonal fitness and adaptability amidst various selection pressures. Inactivating mutations in AT-rich interaction domain 1A (ARID1A), a gene encoding a large nuclear protein member belonging to the SWI/SNF chromatin remodeling complex, result in its loss of expression. ARID1A is the most commonly mutated chromatin remodeler gene, exhibiting the highest mutation frequency in endometrium-related uterine and ovarian carcinomas. As a tumor suppressor gene, ARID1A is essential for regulating cell cycle, facilitating DNA damage repair, and controlling expression of genes that are essential for maintaining cellular differentiation and homeostasis in non-transformed cells. Thus, ARID1A deficiency due to somatic mutations propels tumor progression and dissemination. The recent success of PARP inhibitors in treating homologous recombination DNA repair-deficient tumors has engendered keen interest in developing synthetic lethality-based therapeutic strategies for ARID1A-mutated neoplasms. In this review, we summarize recent advances in understanding the biology of ARID1A in cancer development, with special emphasis on its roles in DNA damage repair. We also discuss strategies to harness synthetic lethal mechanisms for future therapeutics against ARID1A-mutated cancers.

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Authors
Mandal, J., Mandal, P., Wang, T.-L., & Shih, I.-M.
Affiliations
  • Johns Hopkins University (US)
  • B.P. Koirala Institute of Health Sciences (NP)
Corresponding author
  • Wang, Tian-Li
  • Shih, Ie-Ming
Venue
Journal of Biomedical Science
Published
2022-09-19
Volume
29
Issue
1
Pages
71-71
ISSN
  • 1021-7770 (ISSN-L)
  • 1423-0127
OpenAlex
W4296457167
Cited by
84
References
124
Citations by year
2026: 13 · 2025: 25 · 2024: 26 · 2023: 20
FWCI
1.85
Type
journal article
Language
en
Open access
Locations
  • Journal of Biomedical Science (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Johns Hopkins University
  • NIH/NCI (P50CA22899, CA215483)
  • Richard W. TeLinde Endowment
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, synthetic lethality, DNA damage response, PARP inhibitors, endometrial cancer, ovarian carcinoma, tumor suppressor, chromatin remodeling, DNA repair deficiency, cancer therapy
MeSH terms
Poly(ADP-ribose) Polymerase Inhibitors, Synthetic Lethal Mutations, Chromatin, DNA Damage, DNA-Binding Proteins, Female, Histones, Humans, Nuclear Proteins, Ovarian Neoplasms, Transcription Factors

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