known responses of vascular endothelial growth factor (VEGF) are mediated through VEGF receptor-2 (VEGFR-2/KDR) in endothelial cells. in HUVECs. Blockade of VEGFR-1 increased VEGF-mediated HUVEC proliferation that was inhibited by NO donors and potentiated by NO synthase inhibitors. These data show that VEGFR-1 is a signaling receptor that promotes endothelial cell differentiation into vascular tubes… Continue reading known responses of vascular endothelial growth factor (VEGF) are mediated through