Targeting protein-protein interactions in the BCL-2 family: opportunities for precision oncology

Vishnu Malakar1, Chandi C Malakar2, Pratap Chand Mali3

  • 1Department of Pharmacology,, JSS College of Pharmacy, Ooty, 643001, Tamil Nadu, India.

Insights

The B-cell lymphoma 2 (BCL-2) family regulates apoptosis and impacts cancer. Targeting BCL-2 with drugs like Venetoclax shows promise for cancer treatment, despite challenges like drug resistance.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Death Research

Background:

  • Apoptosis is crucial for cellular oxidative stress response and cancer development.
  • The B-cell lymphoma 2 (BCL-2) protein family controls the intrinsic apoptotic pathway.
  • Dysregulation of BCL-2 family proteins promotes tumor progression and treatment resistance.

Purpose of the Study:

  • To review the structure, function, and therapeutic relevance of the BCL-2 family in cancer.
  • To discuss BCL-2's role in apoptosis modulation and BH3 mimetic development.
  • To explore resistance mechanisms and combination strategies for BCL-2-targeted therapies.

Main Methods:

  • Systematic review of scientific literature.
  • Analysis of structural and functional data of BCL-2 family proteins.
  • Evaluation of preclinical and clinical data for BCL-2-targeted drugs.

Main Results:

  • BCL-2 family proteins are key regulators of apoptosis and are frequently altered in cancer.
  • BH3 mimetics, such as Venetoclax, demonstrate significant therapeutic potential.
  • Venetoclax shows improved efficacy and safety in various cancer types, often in combination therapies.

Conclusions:

  • The BCL-2 family represents a promising therapeutic target for cancer treatment.
  • Venetoclax and other BH3 mimetics offer effective treatment options, but resistance mechanisms require further investigation.
  • Future directions include biomarker-guided patient selection and development of next-generation BCL-2 inhibitors.

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