Title |
BMP2-induced chemotaxis requires PI3K p55γ/p110α-dependent phosphatidylinositol (3,4,5)-triphosphate production and LL5β recruitment at the cytocortex
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Published in |
BMC Biology, May 2014
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DOI | 10.1186/1741-7007-12-43 |
Pubmed ID | |
Authors |
Christian Hiepen, Andreas Benn, Agnieszka Denkis, Ilya Lukonin, Christoph Weise, Jan H Boergermann, Petra Knaus |
Abstract |
BMP-induced chemotaxis of mesenchymal progenitors is fundamental for vertebrate development, disease and tissue repair. BMP2 induces Smad and non-Smad signaling. Whereas signal transduction via Smads lead to transcriptional responses, non-Smad signaling induces both, transcriptional and immediate/early non-transcriptional responses. However, the molecular mechanisms by which BMP2 facilitates planar cell polarity, cortical actin rearrangements, lamellipodia formation and chemotaxis of mesenchymal progenitors are poorly understood. Our aim was to uncover the molecular mechanism by which BMP2 facilitates chemotaxis via the BMP2-dependent activation of PI3K and spatiotemporal control of PIP3 production important for actin rearrangements at the mesenchymal cell cytocortex. |
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