articleScienceDec 3, 2015Closed access

Imbalanced OPA1 processing and mitochondrial fragmentation cause heart failure in mice

University of Cologne · Max Planck Institute for Biology of Ageing · +9 more institutions

PubMed
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Abstract

A change of heart (mitochondria) Mitochondria provide an essential source of energy to drive cellular processes and are particularly important in heart muscle cells (see the Perspective by Gottlieb and Bernstein). After birth, the availability of oxygen and nutrients to organs and tissues changes. This invokes changes in metabolism. Gong et al. studied the developmental transitions in mouse heart mitochondria soon after birth. Mitochondria were replaced wholesale via mitophagy in cardiomyocytes over the first 3 weeks after birth. Preventing this turnover by interfering with parkin-mediated mitophagy specifically in cardiomyocytes prevented the normal metabolic transition and caused heart failure. Thus, the…

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