Talin: a mechanosensitive molecule in health and disease [Review]

Talin is a ubiquitous, large focal adhesion protein that links intracellular networks with the extracellular matrix (ECM) via its connection with the actin cytoskeleton and membrane integrins. It is one of a handful molecules that can expose new recognition sites when undergoing force-induced mechanical unfolding, and it can bind and recruit cytoskeletal proteins that are involved in mechanotransduction. Talin has attracted great interest in the field of mechanobiology because of its plasticity in undergoing conformational changes under force stimulation as well as its cellular localization that bridges the cytoskeleton with the ECM. In addition to these roles in healthy cells, the dysregulation of talin activators can lead to disease states in which aberrant integrin activation and mechanotransduction precipitate changes in cell spreading, migration, and survival. New data have implicated a role for talin in diseases that are highly regulated by mechanical cues. In this review, we present the current understanding of talin structure, its relationship to binding partners, and its role in disease states.—Haining, A. W. M., Lieberthal, T. J., del Río Hernández, A. Talin: a mechanosensitive molecule in health and disease.

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