alexa Potential therapeutic targets in ARID1A-mutated cancers.


Journal of Carcinogenesis & Mutagenesis

Author(s): Bitler BG, Fatkhutdinov N, , Zhang R

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Abstract ARID1A is a subunit of the Switch/Sucrose Non-Fermentable (SWI/SNF) chromatin-remodeling complex that regulates gene expression by controlling gene accessibility. ARID1A shows one of the highest mutation rates across different human cancer types. For example, ARID1A is mutated in ∼ 50\% of ovarian clear cell carcinoma (OCCC). There is considerable interest in developing cancer therapeutics that correlate with ARID1A mutational status. A recent study demonstrated a synthetic lethality by targeting EZH2 histone methyltransferase activity in ARID1A-mutated OCCC using a clinically applicable small-molecule inhibitor. The observed synthetic lethality correlated with inhibition of PI3K/AKT signaling. In addition, there is evidence indicating that ARID1A-mutated cancer may also be subjected to therapeutic intervention by targeting residual SWI/SNF activity, the PI3K/AKT pathway, the DNA damage response, the tumor immunological microenvironment and stabilizing wild-type p53. In summary, we propose EZH2 inhibitor-based combinatorial strategies for targeting ARID1A-mutated cancers.
This article was published in Expert Opin Ther Targets and referenced in Journal of Carcinogenesis & Mutagenesis

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