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- W2056591712 abstract "Cell migration is a highly complex process that requires the coordinated formation of membrane protrusion and focal adhesions (FAs). Focal adhesion kinase (FAK), a major signaling component of FAs, is involved in the disassembly process of FAs through phosphorylation and dephosphorylation of its tyrosine residues, but the role of such phosphorylations in nascent FA formation and turnover near the cell front and in cell protrusion is less well understood. In the present study, we demonstrate that, depending on the phosphorylation status of Tyr-925 residue, FAK modulates cell migration via two specific mechanisms. FAK −/− mouse embryonic fibroblasts (MEFs) expressing nonphosphorylatable Y925F-FAK show increased interactions between FAK and unphosphorylated paxillin, which lead to FA stabilization and thus decreased FA turnover and reduced cell migration. Conversely, MEFs expressing phosphomimetic Y925E-FAK display unchanged FA disassembly rates, show increase in phosphorylated paxillin in FAs, and exhibit increased formation of nascent FAs at the cell leading edges. Moreover, Y925E-FAK cells present enhanced cell protrusion together with activation of the p130 CAS /Dock180/Rac1 signaling pathway. Together, our results demonstrate that phosphorylation of FAK at Tyr-925 is required for FAK-mediated cell migration and cell protrusion." @default.
- W2056591712 created "2016-06-24" @default.
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- W2056591712 date "2011-04-01" @default.
- W2056591712 modified "2023-10-12" @default.
- W2056591712 title "FAK phosphorylation at Tyr-925 regulates cross-talk between focal adhesion turnover and cell protrusion" @default.
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- W2056591712 doi "https://doi.org/10.1091/mbc.e10-08-0725" @default.
- W2056591712 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3069021" @default.
- W2056591712 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21289086" @default.
- W2056591712 hasPublicationYear "2011" @default.
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