Apoptotic cell signaling in cancer progression and therapy

Jessica Plati1, Octavian Bucur, Roya Khosravi-Far

  • 1Department of Pathology, Harvard Medical School, Beth Israel Deaconess Medical Center, 330 Brookline Ave., Boston, MA 02215, USA.

Insights

Apoptosis, or programmed cell death, is crucial for health. Its dysregulation drives cancer and drug resistance, highlighting key protein regulators like BCL-2 family, IAPs, and c-FLIP.

Area of Science:

  • Cellular biology
  • Molecular mechanisms of cell death
  • Cancer biology

Background:

  • Apoptosis is a regulated cell suicide process vital for tissue homeostasis.
  • Impaired apoptosis leads to uncontrolled cell growth, genetic instability, and cancer development.
  • Dysregulated apoptosis contributes to cancer cell drug resistance.

Purpose of the Study:

  • To review the fundamental regulators of apoptosis.
  • To highlight their role in normal and cancer cell death pathways.
  • To discuss therapeutic strategies targeting apoptosis in cancer.

Main Methods:

  • Literature review of apoptosis signaling pathways.
  • Analysis of key protein families regulating apoptosis: BCL-2 family, IAPs, and c-FLIP.
  • Discussion of therapeutic interventions targeting these regulators.

Main Results:

  • Apoptosis is controlled by complex signaling networks converging on key regulators.
  • BCL-2 family proteins, IAPs, and c-FLIP are central to apoptosis modulation.
  • Dysfunction of these regulators contributes to cancer resistance to cell death.

Conclusions:

  • Understanding apoptosis regulators is key to preventing and treating diseases like cancer.
  • Targeting BCL-2 family proteins, IAPs, and c-FLIP offers potential therapeutic strategies for cancer.
  • Modulating apoptosis pathways can overcome drug resistance in cancer cells.

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