期刊
ANTIOXIDANTS
卷 11, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/antiox11020208
关键词
diabetes mellitus; diabetic cardiomyopathy; senescence; adult stem cells; cardiac stem cells
资金
- Ministry of Education, University and Research [PRIN2017 2017NKB2N4_005, PON03PE00009_2-iCARE]
Cardiomyopathy is common in diabetic patients, driven by hyperglycemia, hyperinsulinemia, and impaired insulin signaling. In addition to affecting cardiomyocytes and vascular cells, diabetes also impairs the function and repair of stem cells in the heart, leading to deficient myocardial repair and progressive dysfunction.
Cardiomyopathy is a common complication in diabetic patients. Ventricular dysfunction without coronary atherosclerosis and hypertension is driven by hyperglycemia, hyperinsulinemia and impaired insulin signaling. Cardiomyocyte death, hypertrophy, fibrosis, and cell signaling defects underlie cardiomyopathy. Notably, detrimental effects of the diabetic milieu are not limited to cardiomyocytes and vascular cells. The diabetic heart acquires a senescent phenotype and also suffers from altered cellular homeostasis and the insufficient replacement of dying cells. Chronic inflammation, oxidative stress, and metabolic dysregulation damage the population of endogenous cardiac stem cells, which contribute to myocardial cell turnover and repair after injury. Therefore, deficient myocardial repair and the progressive senescence and dysfunction of stem cells in the diabetic heart can represent potential therapeutic targets. While our knowledge of the effects of diabetes on stem cells is growing, several strategies to preserve, activate or restore cardiac stem cell compartments await to be tested in diabetic cardiomyopathy.
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