Flow-dependent remodeling of blood vessels is critical for normal physiology and for recovery from arterial blockage in disease; understanding its cellular mechanisms may lead to the development of treatments for patients that are deficient in this process following myocardial infarction or other vascular diseases.
Zebrafish mutants and human endothelial cell experiments reveal that GIPC family endocytic adaptors bind to the Semaphorin receptor PLEXIND1, a critical regulator of vascular development, to negatively modulate its signaling.
Visualization and quantitative analyses of calcium ion oscillations in the endothelial cells of zebrafish embryos reveal how vascular endothelial growth factor (VEGF) and Dll4/Notch signaling regulate sprouting angiogenesis.
Discs large homologue 1 (Dlg1) activates beta-catenin (i.e., canonical Wnt) signaling in CNS endothelial cells to regulate retinal angiogenesis and the development and maintenance of the blood-brain and blood-retina barriers.
Matrix metalloprotease (MMP)-14 cleaves Tie2 at three distinct sites within the fibronectin type-III (FN3) domain and its pharmacological blockade inhibits Tie2 pathological shedding to exert barrier protective effects.