title: Mechanisms of talin-dependent integrin signaling and crosstalk.
abstract: 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. This article is part of a Special Issue entitled: Reciprocal influences between cell cytoskeleton and membrane channels, receptors and transporters. Guest Editor: Jean Claude Hervé.
authors.affiliation: Department of Molecular Cardiology, Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Lerner Research Institute, Cleveland Clinic.
authors.forename: Mitali
authors.initials: M
authors.lastname: Das
authors.affiliation: Department of Molecular Cardiology, Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Lerner Research Institute, Cleveland Clinic.
authors.forename: Sujay
authors.initials: S
authors.lastname: Ithychanda
authors.affiliation: Department of Molecular Cardiology, Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Lerner Research Institute, Cleveland Clinic.
authors.forename: Jun
authors.initials: J
authors.lastname: Qin
authors.affiliation: Department of Molecular Cardiology, Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Lerner Research Institute, Cleveland Clinic.
authors.forename: Edward F
authors.initials: EF
authors.lastname: Plow
mesh_terms: D000818:Animals; D005109:Extracellular Matrix / Q000378:metabolism*; D006801:Humans; D016023:Integrins / Q000378:metabolism*; D015398:Signal Transduction; D016608:Talin / Q000378:metabolism*
chemical_list: D016023:Integrins; D016608:Talin
keywords: Actin; Crosstalk; Integrin; Talin
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