BET inhibitors as novel therapeutic agents in breast cancer

Alberto Ocaña1, Cristina Nieto-Jiménez1, Atanasio Pandiella2

  • 1Unidad de Investigación Traslacional, Hospital Universitario de Albacete, Universidad de Castilla La Mancha, Albacete, Spain.

Oncotarget
|October 21, 2017
PubMed

Insights

Bromodomain and extra-terminal (BET) inhibitors show promise in treating breast cancer by halting tumor cell growth. This review explores their effectiveness, especially in triple-negative breast cancer, and future clinical applications.

Area of Science:

  • Oncology
  • Epigenetics
  • Molecular Biology

Background:

  • Malignant cells exploit oncogenic and non-oncogenic vulnerabilities.
  • Epigenomic targeting can modulate cellular functions crucial for cancer development.
  • Bromodomain and extra-terminal (BET) inhibitors target transcription machinery by recognizing acetylated histones.

Purpose of the Study:

  • To review the current knowledge on BET inhibitors in breast cancer treatment.
  • To discuss the antiproliferative effects of BET inhibitors across various breast cancer subtypes.
  • To explore therapeutic combinations, resistance mechanisms, and future clinical development of BET inhibitors.

Main Methods:

  • Literature review of preclinical and clinical studies on BET inhibitors in breast cancer.
  • Analysis of data on the efficacy of BET inhibitors in different breast cancer subtypes, including triple-negative breast cancer.
  • Examination of studies investigating combinations of BET inhibitors with other therapies and mechanisms of resistance.

Main Results:

  • BET inhibitors demonstrate antiproliferative effects in several breast cancer subtypes.
  • Efficacy is noted in triple-negative breast cancer and in combination with cell signaling inhibitors.
  • Potential therapeutic combinations and mechanisms of resistance have been identified.

Conclusions:

  • BET inhibitors represent a promising therapeutic strategy for breast cancer.
  • Further research into combinations and resistance mechanisms is crucial for clinical development.
  • Future clinical trials are warranted to establish the role of BET inhibitors in breast cancer treatment.

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