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Trends Cell Biol. 2000 Mar;10(3):111-9.

Integrin signalling: a new Cas(t) of characters enters the stage.

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Fox Chase Cancer Center, Division of Basic Science, 7701 Burholme Avenue, Philadelphia, PA 19111, USA.


Cellular morphology is determined by the organization of the intracellular actin cytoskeleton, which is influenced by external and internal cues. Focal adhesions are sites at which the actin cytoskeleton is linked to the extracellular matrix by integrin receptor complexes. In addition to providing structural tethering points for cells, integrin receptor complexes transduce signals that influence a broad range of cellular processes, including migration, proliferation, transformation and apoptosis. The Cas proteins (p130Cas, HEF1/Cas-L and Efs/Sin), a family of docking proteins containing multiple interaction domains, are important components of integrin receptor signalling and have been implicated in all of these processes.

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