Abstract

▪ Abstract Focal adhesions are sites of tight adhesion to the underlying extracellular matrix developed by cells in culture. They provide a structural link between the actin cytoskeleton and the extracellular matrix and are regions of signal transduction that relate to growth control. The assembly of focal adhesions is regulated by the GTP-binding protein Rho. Rho stimulates contractility which, in cells that are tightly adherent to the substrate, generates isometric tension. In turn, this leads to the bundling of actin filaments and the aggregation of integrins (extracellular matrix receptors) in the plane of the membrane. The aggregation of integrins activates the focal adhesion kinase and leads to the assembly of a multicomponent signaling complex.

Keywords

Focal adhesionCell biologyExtracellular matrixPTK2IntegrinBiologySignal transductionActin cytoskeletonCytoskeletonActinFibronectinExtracellularReceptorCellProtein kinase CBiochemistryMitogen-activated protein kinase kinase

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Publication Info

Year
1996
Type
review
Volume
12
Issue
1
Pages
463-519
Citations
1951
Access
Closed

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1951
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Keith Burridge, Magdalena Chrzanowska‐Wodnicka (1996). FOCAL ADHESIONS, CONTRACTILITY, AND SIGNALING. Annual Review of Cell and Developmental Biology , 12 (1) , 463-519. https://doi.org/10.1146/annurev.cellbio.12.1.463

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DOI
10.1146/annurev.cellbio.12.1.463