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- W2060990332 abstract "Bone morphogenetic proteins (BMPs) are potent regulators of several cellular events. We report that exposure of C2C12 cells to BMP2 leads to an increase in cell migration and a rapid rearrangement of the actin filaments into cortical protrusions. These effects required independent and parallel activation of the Cdc42 small GTPase and the alpha-isoform of the phosphoinositide 3-kinase (PI3Kalpha), because ectopic expression of a dominant-negative form of Cdc42 or distinct pharmacological PI3K inhibitors abrogated these responses. Furthermore, we demonstrate that BMP2 activates different group I and group II PAK isoforms as well as LIMK1 with similar kinetics to Cdc42 or PI3K activation. BMP2 activation of PAK and LIMK1, measured by either kinase activity or with antibodies raised against phosphorylated residues at their activation loops, were abolished by blocking PI3K-signaling pathways. Together, these findings suggest that Cdc42 and PI3K signals emanating from BMP receptors are involved in specific regulation of actin assembly and cell migration." @default.
- W2060990332 created "2016-06-24" @default.
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- W2060990332 date "2008-12-01" @default.
- W2060990332 modified "2023-10-09" @default.
- W2060990332 title "BMP2 induction of actin cytoskeleton reorganization and cell migration requires PI3-kinase and Cdc42 activity" @default.
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- W2060990332 doi "https://doi.org/10.1242/jcs.031286" @default.
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