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Non-apoptotic functions of apoptosis-regulatory proteins

Lorenzo Galluzzi1, Oliver Kepp, Christina Trojel-Hansen

  • 1INSERM, U848, IGR, Pavillon de Recherche 1, 39 rue Camille Desmoulins, F-94805 Villejuif, France.

EMBO Reports
|March 10, 2012
PubMed

Insights

Apoptosis regulators have dual roles, participating in cell death and non-lethal processes like cell cycle and inflammation. This review explores these unconventional functions and their disease implications.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Apoptosis research has identified key gene products regulating programmed cell death.
  • These apoptotic regulators also perform diverse non-apoptotic physiological functions.
  • Pro-apoptotic proteins can influence other cell death pathways, including regulated necrosis.

Purpose of the Study:

  • To review the unconventional, non-lethal roles of core apoptotic machinery.
  • To discuss the pathophysiological implications of these dual functions.

Main Methods:

  • Literature review of scientific publications on apoptosis and its regulators.
  • Functional analysis of known apoptotic proteins in non-apoptotic contexts.
  • Examination of the role of apoptotic proteins in regulated necrosis.

Main Results:

  • Apoptotic regulators are involved in cell cycle, differentiation, metabolism, autophagy, and inflammation.
  • Pro-apoptotic proteins can modulate non-apoptotic cell death pathways.
  • The core apoptotic machinery exhibits significant functional plasticity.

Conclusions:

  • Apoptotic proteins are multifunctional, extending beyond cell death.
  • Understanding these non-apoptotic roles is crucial for comprehending disease pathophysiology.
  • Further research into the dual functions of apoptotic regulators is warranted.

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