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Organelle-specific initiation of cell death

Lorenzo Galluzzi1, José Manuel Bravo-San Pedro2, Guido Kroemer3

  • 11] Equipe 11 labellisée par la Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France [2] Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France [3] Gustave Roussy Comprehensive Cancer Center, Villejuif, France.

Nature Cell Biology
|August 2, 2014
PubMed

Insights

Cell death is a controlled process, not accidental. Cellular compartments sense stress and trigger programmed cell death pathways like apoptosis or necrosis.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Cell death is a regulated process crucial in many pathophysiological conditions.
  • Cells possess a complex molecular apparatus to control cell fate.
  • This system integrates cellular and environmental signals to determine cell survival or death.

Purpose of the Study:

  • To discuss the mechanisms by which cellular compartments sense homeostatic perturbations.
  • To explain how these sensing mechanisms translate into cell-death-initiating signals.
  • To elucidate the role of subcellular compartments in programmed cell death.

Main Methods:

  • Review of molecular mechanisms governing cell death.
  • Analysis of signal integration within cellular compartments.
  • Discussion of stress responses leading to apoptosis and necrosis.

Main Results:

  • Cellular compartments act as sensors for homeostatic imbalances.
  • Specific subcellular sites generate signals that dictate cell fate.
  • A network of signals integrates information to initiate cell death cascades.

Conclusions:

  • Cell death is an actively controlled and programmed cellular response.
  • Subcellular compartments play critical roles in sensing stress and initiating death pathways.
  • Understanding these mechanisms is key to comprehending various diseases.

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