Mitochondrial quality control mechanisms as molecular targets in cardiac ageing

Emanuele Marzetti, Robert T. Mankowski, Jonathon L. Burman, Jae-Sung Kim, Christiaan Leeuwenburgh

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

56 Citazioni (Scopus)

Abstract

Cardiovascular disease is the leading cause of morbidity and mortality worldwide. Advancing age is a major risk factor for developing cardiovascular disease because of the lifelong exposure to cardiovascular risk factors and specific alterations affecting the heart and the vasculature during ageing. Indeed, the ageing heart is characterized by structural and functional changes that are caused by alterations in fundamental cardiomyocyte functions. In particular, the myocardium is heavily dependent on mitochondrial oxidative metabolism and is especially susceptible to mitochondrial dysfunction. Indeed, primary alterations in mitochondrial function, which are subsequently amplified by defective quality control mechanisms, are considered to be major contributing factors to cardiac senescence. In this Review, we discuss the mechanisms linking defective mitochondrial quality control mechanisms (that is, proteostasis, biogenesis, dynamics, and autophagy) to organelle dysfunction in the context of cardiac ageing. We also illustrate relevant molecular pathways that might be exploited for the prevention and treatment of age-related heart dysfunction.
Lingua originaleEnglish
pagine (da-a)543-554
Numero di pagine12
RivistaNATURE REVIEWS. CARDIOLOGY
Volume15
DOI
Stato di pubblicazionePubblicato - 2018

Keywords

  • Mitochondrial dysfunction, cardiovascular aging

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