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首页> 外文期刊>Trends in Cell Biology >The inner lives of focal adhesions [Review]
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The inner lives of focal adhesions [Review]

机译:粘连的内在生活[综述]

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摘要

In focal adhesions of eukaryotic cells, transmembrane receptors of the integrin family and a large set of adaptor proteins form the physical link between the extracellular substrate and the actin cytoskeleton. During cell migration, nascent focal adhesions within filopodia and lamellipodia make the initial exploratory contacts with the cellular environment, whereas maturing focal adhesions pull the cell forward against the resistance of 'sliding' focal adhesions at the cell rear. Experimental approaches are now available for analysing the dynamics and interior structure of these different focal adhesions. Analysing focal-adhesion dynamics using green-fluorescent-protein-linked integrin leads us to propose that the acto-myosin-controlled density and turnover of integrins in focal adhesions is used to sense the elasticity and spacing of extracellular ligands, regulating cell migration by mechanically transduced signaling.
机译:在真核细胞的粘着粘附中,整联蛋白家族的跨膜受体和大量的衔接蛋白在细胞外基质和肌动蛋白细胞骨架之间形成了物理联系。在细胞迁移过程中,丝状伪足和片状脂质体中新生的粘着斑与细胞环境形成了初步的探索性接触,而成熟的粘着斑将细胞向前拉动,抵抗细胞后部“滑动”粘着斑的阻力。现在可以使用实验方法来分析这些不同粘着斑的动力学和内部结构。使用绿色荧光蛋白连接的整联蛋白分析粘着斑动力学,我们建议将肌动蛋白控制的粘着斑中整合素的密度和周转率用于感知细胞外配体的弹性和间距,通过机械方式调节细胞迁移转导的信号。

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