Journal
CURRENT OPINION IN GENETICS & DEVELOPMENT
Volume 38, Issue -, Pages 8-15Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.gde.2016.02.006
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Funding
- U.S. Public Health Service [HL67724, HL91469, HL102738, HL112330, AG23039]
- Leducq Foundation Transatlantic Network of Excellence
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Cardiac mitochondria produce vast amounts of ATP through oxidative phosphorylation to maintain contractile function. They are also the primary source of reactive oxygen species, which contribute to mitochondrial dysfunction, cardiomyocyte death, and heart failure. To protect against mitochondrial damage, cardiomyocytes develop well-coordinated quality control mechanisms that maintain the overall mitochondrial health through mitochondrial biogenesis, mitochondrial dynamics, and mitochondrial autophagy (mitophagy). Mitophagy removes dysfunctional mitochondria in the heart not only under normal physiological conditions, but also in response to pathological stresses. Accumulating evidence suggests that mitophagy dysregulation can induce cardiomyocyte death and cardiomyopathy. In this review, we discuss what is currently known about mitophagic mechanisms, regulatory pathways, and function in the heart.
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