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The integrin-mediated cyclic strain-induced signaling pathway in vascular endothelial cells.

机译:整合素介导的循环应变诱导的血管内皮细胞信号通路。

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摘要

The irregular distribution of plaque in the vasculature results from the interaction of local hemodynamic forces with the vessel wall. One well-characterized force is cyclic circumferential strain, the repetitive pulsatile pressure distention on the arterial wall. This review summarizes current research, which has aimed to elicit the signal transduction pathway by which cyclic strain elicits functional and structural responses in endothelial cells; specifically, it summarizes the signaling pathway that begins with the reorganization of integrins. One method by which these extracellular matrix receptors affect signal transduction is through their ability to initiate the process of phosphorylation on tyrosine residues of cytoplasmic protein kinases, including focal adhesion kinase. The strain-induced pathway appears to also involve ras and the mitogen-activated protein kinase family of enzymes, and preliminary data suggests a role for src as well. Ultimately, it is the regulation of gene expression through the modulation of transcription factors that allows endothelial cells to respond to changes in local hemodynamics.
机译:斑块在脉管系统中的不规则分布是由于局部血液动力与血管壁的相互作用所致。一个很好表征的力是循环圆周应变,即在动脉壁上的重复性脉动压力扩张。这篇综述总结了当前的研究,该研究旨在引发信号转导途径,循环应变通过该途径在内皮细胞中引发功能和结构反应。具体来说,它总结了从整联蛋白重组开始的信号传导途径。这些细胞外基质受体影响信号转导的一种方法是通过其启动细胞质蛋白激酶(包括粘着斑激酶)的酪氨酸残基磷酸化过程的能力。菌株诱导的途径似乎也涉及ras和丝裂原激活的蛋白激酶家族的酶,初步数据也暗示了src的作用。最终,通过转录因子的调节来调节基因表达,使内皮细胞对局部血液动力学的变化作出反应。

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