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Cell Adh Migr. 2010 Jul-Sep;4(3):342-7. Epub 2010 Jul 3.

Emerging role of paxillin-PKL in regulation of cell adhesion, polarity and migration.

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  • 1Department of Cell and Developmental Biology, State University of New York, Upstate Medical University, Syracuse, NY, USA.

Abstract

Cell adhesion and motility is of fundamental importance during development, normal physiology and pathologic conditions such as tumor metastasis. Focal adhesion proteins and their dynamic interactions play a critical role in the regulation of directed cell migration upon exposure to extracellular guidance cues. Using a combination of pharmacological inhibitors, knockout and knockdown cells and mutant protein expression, we recently reported that following adhesion and growth factor stimulation the dynamic interaction between paxillin and PKL(GIT2) is regulated by Src/FAK-dependent phosphorylation of PKL and that this interaction is necessary for the coordination of Rho family GTPase signaling controlling front-rear cell polarity and thus directional migration. Herein, we discuss the implications of these observations.

PMID:
20372092
[PubMed - indexed for MEDLINE]
PMCID:
PMC2958606
Free PMC Article

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