Differential Apicobasal VEGF Signaling at Vascular Blood-Neural Barriers
Citations Over TimeTop 10% of 2014 papers
Abstract
The vascular endothelium operates in a highly polarized environment, but to date there has been little exploration of apicobasal polarization of its signaling. We show that VEGF-A, histamine, IGFBP3, and LPA trigger unequal endothelial responses when acting from the circulation or the parenchymal side at blood-neural barriers. For VEGF-A, highly polarized receptor distribution contributed to distinct signaling patterns: VEGFR2, which was found to be predominantly abluminal, mediated increased permeability via p38; in contrast, luminal VEGFR1 led to Akt activation and facilitated cytoprotection. Importantly, such differential apicobasal signaling and VEGFR distribution were found in the microvasculature of brain and retina but not lung, indicating that endothelial cells at blood-neural barriers possess specialized signaling compartments that assign different functions depending on whether an agonist is tissue or blood borne.
Related Papers
- → Cysteinyl leukotriene receptor antagonist regulates vascular permeability by reducing vascular endothelial growth factor expression(2004)97 cited
- → MALAT1 regulates network of microRNA-15a/16–VEGFA to promote tumorigenesis and angiogenesis in multiple myeloma(2023)13 cited
- → Increased levels of vascular endothelial growth factor in BALF in asthmatic rats(2010)
- Advances in the Research of Vascular Endothelial Growth Factor(2012)
- Increased levels of vascular endothelial growth factor in BALF in asthmatic rats(2010)