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Flow pattern-dependent endothelial cell responses through transcriptional regulation

机译:通过转录调节流动模式依赖性内皮细胞应答

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摘要

Blood flow provides endothelial cells (ECs) lining the inside of blood vessels with mechanical stimuli as well as humoral stimuli. Fluid shear stress, the frictional force between flowing blood and ECs, is recognized as an essential mechanical cue for vascular growth, remodeling, and homeostasis. ECs differentially respond to distinct flow patterns. High laminar shear flow leads to inhibition of cell cycle progression and stabilizes vessels, whereas low shear flow or disturbed flow leads to increased turnover of ECs and inflammatory responses of ECs prone to atherogenic. These differences of EC responses dependent on flow pattern are mainly ascribed to distinct patterns of gene expression. In this review, we highlight flow pattern-dependent transcriptional regulation in ECs by focusing on KLF2 and NFB, major transcription factors responding to laminar flow and disturbed flow, respectively. Moreover, we introduce roles of a new flow-responsive transcriptional co-regulator, YAP, in blood vessel maintenance and discuss how these transcriptional regulators are spatiotemporally regulated by flow and then regulate EC functions in normal and pathological conditions.
机译:血液流量提供内皮细胞(ECS),其中血管内部具有机械刺激以及体液刺激。流体剪切应力,流动血液和ECS之间的摩擦力被认为是用于血管生长,重塑和稳态的基本机械提示。 ECS差异响应不同的流动模式。高层剪切流量导致抑制细胞周期进展和稳定血管,而低剪切流量或受干扰的流动导致ECS和ECS容易发生致动脉粥样菌的炎症反应增加。依赖于流动模式的EC反应的这些差异主要归因于基因表达的不同模式。在本文中,我们通过专注于KLF2和NFB,分别突出ECS的流动模式依赖性转录调节,分别对层流和干扰流动的主要转录因子。此外,我们介绍了新的流量响应转录共调节器,叶片的作用,血管维护,并讨论这些转录调节因子如何通过流动调节,然后在正常和病理条件下调节EC功能。

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