Dual Role of Mitophagy in Cardiovascular Diseases

J Cardiovasc Pharmacol. 2021 Jul 1;78(1):e30-e39. doi: 10.1097/FJC.0000000000001046.

Abstract

Mitophagy is involved in the development of various cardiovascular diseases, such as atherosclerosis, heart failure, myocardial ischemia/reperfusion injury, and hypertension. Mitophagy is essential for maintaining intracellular homeostasis and physiological function in most cardiovascular origin cells, such as cardiomyocytes, endothelial cells, and vascular smooth muscle cells. Mitophagy is crucial to ensuring energy supply by selectively removing dysfunctional mitochondria, maintaining a balance in the number of mitochondria in cells, ensuring the integrity of mitochondrial structure and function, maintaining homeostasis, and promoting cell survival. Substantial research has indicated a "dual" effect of mitophagy on cardiac function, with inadequate and increased mitochondrial degradation both likely to influence the progression of cardiovascular disease. This review summarizes the main regulatory pathways of mitophagy and emphasizes that an appropriate amount of mitophagy can prevent endothelial cell injury, vascular smooth muscle cell proliferation, macrophage polarization, and cardiomyocyte apoptosis, avoiding further progression of cardiovascular diseases.

Publication types

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

MeSH terms

  • Animals
  • Apoptosis Regulatory Proteins / metabolism
  • Autophagy-Related Proteins / metabolism
  • Cardiovascular Diseases / metabolism
  • Cardiovascular Diseases / pathology*
  • Disease Progression
  • Humans
  • Mitochondria, Heart / metabolism
  • Mitochondria, Heart / pathology*
  • Mitochondrial Proteins / metabolism
  • Mitophagy*
  • Myocytes, Cardiac / metabolism
  • Myocytes, Cardiac / pathology*
  • Signal Transduction

Substances

  • Apoptosis Regulatory Proteins
  • Autophagy-Related Proteins
  • Mitochondrial Proteins