Sirtuins family as a target in endothelial cell dysfunction: implications for vascular ageing.

Sirtuins family as a target in endothelial cell dysfunction: implications for vascular ageing. Biogerontology. 2020 Apr 13;: Authors: Zhang HN, Dai Y, Zhang CH, Omondi AM, Ghosh A, Khanra I, Chakraborty M, Yu XB, Liang J Abstract The vascular endothelium is a protective barrier between the bloodstream and the vasculature that may be disrupted by different factors such as the presence of diseased states. Diseases like diabetes and obesity pose a great risk toward endothelial cell inflammation and oxidative stress, leading to endothelial cell dysfunction and thereby cardiovascular complications such as atherosclerosis. Sirtuins are NAD+-dependent histone deacetylases that are implicated in the pathophysiology of cardiovascular diseases, and they have been identified to be important regulators of endothelial cell function. A handful of recent studies suggest that disbalance in the regulation of endothelial sirtuins, mainly sirtuin 1 (SIRT1), contributes to endothelial cell dysfunction. Herein, we summarize how SIRT1 and other sirtuins may contribute to endothelial cell function and how presence of diseased conditions may alter their expressions to cause endothelial dysfunction. Moreover, we discuss how the beneficial effects of exercise on the endothelium are dependent on SIRT1. These mainly include regulation of signaling pathways related to endothelial nitric oxide synthase phosphorylation and nitric oxide production, mitochondrial ...
Source: Biogerontology - Category: Geriatrics Authors: Tags: Biogerontology Source Type: research