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The Role of a-Catenin in Cadherin-Mediated Mechanical Signaling in Human Embryonic Stem Cells

机译:A-Catenin在钙粘蛋白介导的人胚胎干细胞中的机械信号传导中的作用

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Controlling stem cell renewal and differentiation is crucial to tissue engineering and regenerative medicine as a whole. Substrate stiffness and cell-cell junctional forces have been shown to be critical factors that influence proliferation, survival, and differentiation in human mesenchymal stem cells and other cell types. However, how mechanical cues regulate proliferation and self-renewal in human embryonic stem cells (hESCs) and other pluripotent cell types is poorly understood. Work from our and other laboratories supports an emerging picture in which the protein αE-catenin functions as a central mechanosensor at cell-cell junctions. Genetic and developmental evidence likewise suggest that αE-catenin acts as a potent regulator of the Hippo pathway, a central regulator of cell proliferation, by preventing nuclear translocation of the transcriptional coactivator yorkie-associated protein (YAP).
机译:控制干细胞更新和分化对组织工程和整体再生医学至关重要。已经显示衬底刚度和细胞 - 细胞连接力是影响人间充质干细胞和其他细胞类型中的增殖,存活和分化的关键因素。然而,机械提示如何调节人胚胎干细胞(HESC)和其他多能细胞类型中的增殖和自我更新是较差的。我们和其他实验室的工作支持蛋白质αe-catenin作为细胞 - 细胞结的中央机械传感器的新兴画面。遗传和发育证据同样表明,αe-catenin作为河马途径的有效调节剂,通过防止转录共同率约克相关蛋白(yap)的核转移来称为细胞增殖的中央调节因子。

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