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2015 ; 116
(11
): 1835-49
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How mitochondrial dynamism orchestrates mitophagy
#MMPMID25999423
Shirihai OS
; Song M
; Dorn GW 2nd
Circ Res
2015[May]; 116
(11
): 1835-49
PMID25999423
show ga
Mitochondria are highly dynamic, except in adult cardiomyocytes. Yet, the fission
and fusion-promoting proteins that mediate mitochondrial dynamism are highly
expressed in, and essential to the normal functioning of, hearts. Here, we review
accumulating evidence supporting important roles for mitochondrial fission and
fusion in cardiac mitochondrial quality control, focusing on the PTEN-induced
putative kinase 1-Parkin mitophagy pathway. Based in part on recent findings from
in vivo mouse models in which mitofusin-mediated mitochondrial fusion or
dynamin-related protein 1-mediated mitochondrial fission was conditionally
interrupted in cardiac myocytes, we propose several new concepts that may provide
insight into the cardiac mitochondrial dynamism-mitophagy interactome.