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Identification of Transcription Factor Regulators using Medium-Throughput Screening of Arrayed Libraries and a Dual-Luciferase-Based Reporter
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Emerging Roles of Epigenetic Regulator Sin3 in Cancer

N Bansal1, G David2, E Farias1

  • 1The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States.

Advances in Cancer Research
|April 3, 2016
PubMed

Insights

Targeting Sin3 proteins, which regulate gene transcription, offers a promising strategy for developing novel cancer therapies. Research highlights their role in various cancers and proposes new screening methods for Sin3-targeting antitumor agents.

Area of Science:

  • Epigenetics and Molecular Biology
  • Cancer Pathogenesis and Therapeutics

Background:

  • Chromatin-associated proteins are emerging as critical targets for innovative cancer treatments.
  • There is a pressing need for targeted epigenetic inhibitors with improved safety profiles.
  • The Sin3 family (Sin3A/B) comprises conserved global transcription regulators involved in essential cellular functions and implicated in cancer.

Purpose of the Study:

  • To review the fundamental biology of Sin3 proteins.
  • To summarize recent findings on the role of Sin3 proteins in cancer development.
  • To present a novel strategy for screening anticancer agents targeting chromatin-associated factors like Sin3.

Main Methods:

  • Literature review of Sin3 biology and its role in cancer.
  • Analysis of Sin3 protein involvement in specific cancer types (MEN2, PDAC, TNBC).
  • Proposal of an integrative screening program for chromatin-associated factor-targeting agents.

Main Results:

  • Sin3 proteins are global transcription regulators influencing cell cycle, proliferation, and differentiation.
  • Sin3 proteins play a significant role in the pathogenesis of multiple endocrine neoplasia type 2, pancreatic ductal adenocarcinoma, and triple-negative breast cancer.
  • An integrative approach for screening Sin3-targeting antitumor agents has been proposed.

Conclusions:

  • Sin3 proteins represent a promising therapeutic target for cancer treatment.
  • Targeted inhibition of Sin3A/B may offer a strategy for developing novel, less toxic anticancer drugs.
  • The proposed screening program aims to accelerate the discovery of effective Sin3-targeting agents.
Keywords:
Cancer stem cellsEpigeneticsHDACMultiple endocrine neoplasia type 2Pancreatic ductal adenocarcinomaSin3ASin3BTriple negative breast cancer

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