Unraveling and Targeting Myocardial Regeneration Deficit in Diabetes.

Unraveling and Targeting Myocardial Regeneration Deficit in Diabetes.
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DOI:
10.3390/antiox11020208
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发表时间:
2022-01-22
期刊:
Antioxidants (Basel, Switzerland)
影响因子:
--
通讯作者:
Urbanek K
Urbanek K
中科院分区:
其他
文献类型:
--
作者:
Molinaro C;Salerno L;Marino F;Scalise M;Salerno N;Pagano L;De Angelis A;Cianflone E;Torella D;Urbanek K

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心肌病是糖尿病患者常见的并发症。无冠状动脉粥样硬化和高血压的心室功能障碍是由高血糖、高胰岛素血症和受损的胰岛素信号传导驱动的。心肌细胞死亡、肥大、纤维化和细胞信号缺陷是心肌病的基础。值得注意的是,糖尿病环境的有害影响不限于心肌细胞和血管细胞。糖尿病心脏获得衰老表型,并且还遭受改变的细胞稳态和死亡细胞的不充分替换。慢性炎症、氧化应激和代谢失调会损害内源性心脏干细胞的数量,这些干细胞有助于心肌细胞的更新和损伤后的修复。因此,糖尿病心脏中的心肌修复缺陷和干细胞的进行性衰老和功能障碍可以代表潜在的治疗靶点。虽然我们对糖尿病对干细胞影响的认识正在增长,但在糖尿病心肌病中,保存,激活或恢复心脏干细胞的几种策略有待测试。
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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