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Kif26b controls endothelial cell polarity through the Dishevelled/Daam1-dependent planar cell polarity-signaling pathway.
GUILLABERT-GOURGUES, Aude
Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
JASPARD-VINASSA, Beatrice
Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
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Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
GUILLABERT-GOURGUES, Aude
Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
JASPARD-VINASSA, Beatrice
Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
LARRIEU-LAHARGUE, Frederic
Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
< Reduce
Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases
Language
EN
Article de revue
This item was published in
Molecular Biology of the Cell. 2016-03-15, vol. 27, n° 6, p. 941-53
English Abstract
Angiogenesis involves the coordinated growth and migration of endothelial cells (ECs) toward a proangiogenic signal. The Wnt planar cell polarity (PCP) pathway, through the recruitment of Dishevelled (Dvl) and Dvl-associated ...Read more >
Angiogenesis involves the coordinated growth and migration of endothelial cells (ECs) toward a proangiogenic signal. The Wnt planar cell polarity (PCP) pathway, through the recruitment of Dishevelled (Dvl) and Dvl-associated activator of morphogenesis (Daam1), has been proposed to regulate cell actin cytoskeleton and microtubule (MT) reorganization for oriented cell migration. Here we report that Kif26b--a kinesin--and Daam1 cooperatively regulate initiation of EC sprouting and directional migration via MT reorganization. First, we find that Kif26b is recruited within the Dvl3/Daam1 complex. Using a three-dimensional in vitro angiogenesis assay, we show that Kif26b and Daam1 depletion impairs tip cell polarization and destabilizes extended vascular processes. Kif26b depletion specifically alters EC directional migration and mislocalized MT organizing center (MTOC)/Golgi and myosin IIB cell rear enrichment. Therefore the cell fails to establish a proper front-rear polarity. Of interest, Kif26b ectopic expression rescues the siDaam1 polarization defect phenotype. Finally, we show that Kif26b functions in MT stabilization, which is indispensable for asymmetrical cell structure reorganization. These data demonstrate that Kif26b, together with Dvl3/Daam1, initiates cell polarity through the control of PCP signaling pathway-dependent activation.Read less <
English Keywords
Adaptor Proteins
Signal Transducing
Animals
Cell Movement
Cell Polarity
Dishevelled Proteins
Endothelial Cells
Humans
Kinesins
Mice
Microfilament Proteins
Microtubule-Organizing Center
Microtubules
Neovascularization
Physiologic
Wnt Signaling Pathway
rho GTP-Binding Proteins