LIM proteins in actin cytoskeleton mechanoresponse.

LIM proteins in actin cytoskeleton mechanoresponse.
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DOI:
10.1016/j.tcb.2014.04.009
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发表时间:
2014-10
影响因子:
19
通讯作者:
Beckerle, M. C.
Beckerle, M. C.
中科院分区:
生物学1区
文献类型:
--
作者:
Smith, M. A.;Hoffman, L. M.;Beckerle, M. C.

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肌动蛋白细胞骨架组装成分支网络或束,以产生关键细胞过程的机械力,例如极性的建立,粘附和迁移。应力纤维是可收缩的肌动球蛋白结构,其通过基于整合素的局灶性粘附物理地偶联到细胞外基质,从而将力传递到细胞内并穿过细胞。最近,LIM结构域蛋白已被牵连在介导这种细胞骨架机械转导。在研究得更好的LIM结构域衔接蛋白是zyxin,一个动态的组成部分,双方的局灶性粘连和应力纤维。在这里,我们讨论了最近的研究,详细介绍了应力纤维调整其结构和组成,以平衡机械力的机制,并建议zyxin和其他LIM结构域蛋白介导机械反应的方式。
The actin cytoskeleton assembles into branched networks or bundles to generate mechanical force for critical cellular processes such as establishment of polarity, adhesion, and migration. Stress fibers are contractile, actomyosin structures that physically couple to the extracellular matrix through integrin-based focal adhesions, thereby transmitting force into and across the cell. Recently, LIM domain proteins have been implicated in mediating this cytoskeletal mechanotransduction. Among the more well studied LIM domain adapter proteins is zyxin, a dynamic component of both focal adhesions and stress fibers. Here, we discuss recent research detailing the mechanisms by which stress fibers adjust their structure and composition to balance mechanical forces, and suggest ways zyxin and other LIM domain proteins mediate mechanoresponse.
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