Mechanisms of talin-dependent integrin signaling and crosstalk.
Mechanisms of talin-dependent integrin signaling and crosstalk.
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DOI:
10.1016/j.bbamem.2013.07.017
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发表时间:
2014-02
期刊:
影响因子:
--
通讯作者:
Plow EF
中科院分区:
文献类型:
--
作者:
Das M;Ithychanda S;Qin J;Plow EF
Cells undergo dynamic remodeling of the cytoskeleton during adhesion and migration on various extracellular matrix (ECM) substrates in response to physiological and pathological cues. The major mediators of such cellular responses are the heterodimeric adhesion receptors, the integrins. Extracellular or intracellular signals emanating from different signaling cascades cause inside-out signaling of integrins via talin, a cystokeletal protein that links integrins to the actin cytoskeleton. Various integrin subfamilies communicate with each other and growth factor receptors under diverse cellular contexts to facilitate or inhibit various integrin-mediated functions. Since talin is an essential mediator of integrin activation, much of the integrin crosstalk would therefore be influenced by talin. However, despite the existence of an extensive body of knowledge on the role of talin in integrin activation and as a stabilizer of ECM-actin linkage, information on its role in regulating inter-integrin communication is limited. This review will focus on the structure of talin, its regulation of integrin activation and discuss its potential role in integrin crosstalk.
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