Bromodomain and extraterminal (BET) proteins: biological functions, diseases, and targeted therapy

Zhi-Qiang Wang1, Zhao-Cong Zhang1, Yu-Yang Wu2

  • 1Department of Gynecology Oncology, Harbin Medical University Cancer Hospital, Harbin, 150086, China.

Insights

BET inhibitors show promise as epigenetic anticancer treatments, but limited effectiveness alone. Combining BET inhibitors with other drugs offers a promising strategy for enhanced cancer therapy.

Area of Science:

  • Oncology
  • Epigenetics
  • Pharmacology

Background:

  • BET proteins function as epigenetic interpreters, regulating gene expression crucial in cancer development.
  • BET inhibitors represent a novel epigenetic approach to cancer treatment.
  • Preliminary clinical trials indicate anticancer potential but limited monotherapeutic efficacy.

Purpose of the Study:

  • To review the function of BET proteins and their targeting in cancer.
  • To examine advances in small-molecule BET inhibitors and clinical findings.
  • To explore combination strategies and resistance mechanisms for BET inhibitors.

Main Methods:

  • Literature review of BET protein function, cancer targeting, and inhibitor development.
  • Analysis of preclinical data and preliminary clinical trial results.
  • Investigation into resistance mechanisms, adverse events, and synergistic drug combinations.

Main Results:

  • BET inhibitors demonstrate anticancer potential but face challenges with monotherapy.
  • Understanding resistance mechanisms and adverse events is critical for effective use.
  • Numerous synergistic combinations with other agents are being explored.

Conclusions:

  • Combining BET inhibitors with other anticancer drugs and next-generation agents holds significant potential.
  • Optimizing combination therapies is key to advancing BET protein targeting in oncology.
  • BET inhibitors are a promising strategy for potent antitumor effects when used judiciously.

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