Targeting SIRT3 in Diabetic Cardiomyopathy: Mechanism-Based Therapeutic Strategies
摘要
Diabetic cardiomyopathy (DCM) represents a prevalent and clinically significant complication associated with diabetes mellitus, characterized by myocardial dysfunction in the absence of overt coronary artery disease or hypertension. Consequently, there is an urgent need for novel preventive and therapeutic strategies. Sirtuin 3 (SIRT3), a member of the sirtuin family and a mitochondrial nicotinamide adenine dinucleotide (NAD+)-dependent deacetylase, has emerged as a pivotal regulator of mitochondrial function, oxidative stress, and cellular metabolism. In diabetic hearts, the activity and expression of SIRT3 are consistently diminished due to various regulators, including exercise, noncoding RNAs, and metabolic enzymes. This review elucidates the role of SIRT3 in regulating mitochondrial homeostasis, oxidative stress/inflammation, and lipotoxicity, thereby contributing to the progression of DCM. Furthermore, we provide a comprehensive overview of the modulators targeting SIRT3 as potential therapeutic agents to mitigate DCM. In conclusion, targeting SIRT3 is a novel and promising approach for combating DCM.