Regulation of metabolism by mitochondrial enzyme acetylation in cardiac ischemia-reperfusion injury

BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR BASIS OF DISEASE

卷:1866

Review

Herr, Daniel J.¹  Singh, Toolika¹  Dhammu, Tajinder¹  Menick, Donald R.^1,2 

[1] Med Univ South Carolina, Dept Med, Div Cardiol, Charleston, SC 29425 USA

[2] Ralph H Johnson Vet Affairs Med Ctr, Charleston, SC USA

关键词: Ischemia reperfusion injury;    Mitochondrial metabolism;    Histone deacetylase;    Lysine acylation;    HDAC inhibitors;   

DOI  :  10.1016/j.bbadis.2020.165728

来源: Elsevier

【 摘 要 】

Ischemia reperfusion injury (I/R injury) contributes significantly to morbidity and mortality following myocardial infarction (MI). Although rapid reperfusion of the ischemic myocardium was established decades ago as a highly beneficial therapy for MI, significant cell death still occurs after the onset of reperfusion. Mitochondrial dysfunction is closely associated with I/R injury, resulting in the uncontrolled production of reactive oxygen species (ROS). Considerable efforts have gone into understanding the metabolic perturbations elicited by I/R injury. Recent work has identified the critical role of reversible protein acetylation in maintaining normal mitochondrial biologic function and energy metabolism both in the normal heart and during I/R injury. Several studies have shown that modification of class I HDAC and/or Sirtuin (Sirt) activity is cardioprotective in the setting of I/R injury. A better understanding of the role of these metabolic pathways in reperfusion injury and their regulation by reversible protein acetylation presents a promising way forward in improving the treatment of cardiac reperfusion injury. Here we briefly review some of what is known about how acetylation regulates mitochondrial metabolism and how it relates to I/R injury.

【 授权许可】

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