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EMBO Rep. 2008 Dec;9(12):1203-8. doi: 10.1038/embor.2008.202. Epub 2008 Nov 7.

Kindlins: essential regulators of integrin signalling and cell-matrix adhesion.

Author information

1
Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, Canada.

Abstract

Integrin-mediated cell-ECM (extracellular matrix) adhesion is a fundamental process that controls cell behaviour. For correct cell-ECM adhesion, both the ligand-binding affinity and the spatial organization of integrins must be precisely controlled; how integrins are regulated, however, is not completely understood. Kindlins constitute a family of evolutionarily conserved cytoplasmic components of cell-ECM adhesions that bind to beta-integrin cytoplasmic tails directly and cooperate with talin in integrin activation. In addition, kindlins interact with many components of cell-ECM adhesions--such as migfilin and integrin-linked kinase--to promote cytoskeletal reorganization. Loss of kindlins causes severe defects in integrin signalling, cell-ECM adhesion and cytoskeletal organization, resulting in early embryonic lethality (kindlin-2), postnatal lethality (kindlin-3) and Kindler syndrome (kindlin-1). It is therefore clear that kindlins, together with several other integrin-proximal proteins, are essential for integrin signalling and cell-ECM adhesion regulation.

PMID:
18997731
PMCID:
PMC2603460
DOI:
10.1038/embor.2008.202
[Indexed for MEDLINE]
Free PMC Article

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