Cell death in the pathogenesis of heart disease: Mechanisms and significance

Russell S. Whelan, Vladimir Kaplinskiy, Richard N. Kitsis

Research output: Contribution to journalReview articlepeer-review

466 Scopus citations

Abstract

Cell death was once viewed as unregulated. It is now clear that at least a portion of cell death is a regulated cell suicide process. This type of death can exhibit multiple morphologies. One of these, apoptosis, has long been recognized to be actively mediated, and many of its underlying mechanisms have been elucidated. Moreover, necrosis, the traditional example of unregulated cell death, is also regulated in some instances. Autophagy is usually a survival mechanism but can occur in association with cell death. Little is known, however, about how autophagic cells die. Apoptosis, necrosis, and autophagy occur in cardiac myocytes during myocardial infarction, ischemia/reperfusion, and heart failure. Pharmacological and genetic inhibition of apoptosis and necrosis lessens infarct size and improves cardiac function in these disorders. The roles of autophagy in ischemia/reperfusion and heart failure are unresolved. A better understanding of these processes and their interrelationships may allow for the development of novel therapies for the major heart syndromes.

Original languageEnglish (US)
Pages (from-to)19-44
Number of pages26
JournalAnnual review of physiology
Volume72
DOIs
StatePublished - Mar 17 2009

Keywords

  • Apoptosis
  • Autophagic cell death
  • Autophagy
  • Cardiac remodeling
  • Myocardial infarction
  • Myocardial ischemia/reperfusion
  • Necrosis

ASJC Scopus subject areas

  • Physiology

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