Crosstalk between autophagy and apoptosis in heart disease

Circ Res. 2008 Aug 15;103(4):343-51. doi: 10.1161/CIRCRESAHA.108.175448.

Abstract

Autophagy is a cell survival mechanism that involves degradation and recycling of cytoplasmic components, such as long-lived proteins and organelles. In addition, autophagy mediates cell death under specific circumstances. Apoptosis, a form of programmed cell death, has been well characterized, and the molecular events involved in apoptotic death are well understood. Damaged cardiomyocytes that show characteristics of autophagy have been observed during heart failure. However, it remains unclear whether autophagy is a sign of failed cardiomyocyte repair or is a suicide pathway for the failing cardiomyocytes. Although autophagy and apoptosis are markedly different processes, several pathways regulate both autophagic and apoptotic machinery and autophagy can cooperate with apoptosis. This review summarizes the evidence for crosstalk between autophagy and apoptosis.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Apoptosis / physiology*
  • Autophagy / physiology*
  • Cell Survival / physiology
  • Heart Diseases / pathology
  • Heart Diseases / physiopathology*
  • Homeostasis / physiology
  • Humans
  • Myocytes, Cardiac / physiology