Quantitative Assessment of the Apical and Basolateral Membrane Expression of VEGFR2 and NRP2 in VEGF-A-stimulated Cultured Human Umbilical Vein Endothelial Cells.
Détails
Télécharger: 35876388.pdf (6062.74 [Ko])
Etat: Public
Version: Final published version
Licence: CC BY 4.0
Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_B982D007B594
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Quantitative Assessment of the Apical and Basolateral Membrane Expression of VEGFR2 and NRP2 in VEGF-A-stimulated Cultured Human Umbilical Vein Endothelial Cells.
Périodique
The journal of histochemistry and cytochemistry
ISSN
1551-5044 (Electronic)
ISSN-L
0022-1554
Statut éditorial
Publié
Date de publication
08/2022
Peer-reviewed
Oui
Volume
70
Numéro
8
Pages
557-569
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Publication Status: ppublish
Résumé
Endothelial cells (ECs) form a precisely regulated polarized monolayer in capillary walls. Vascular endothelial growth factor-A (VEGF-A) induces endothelial hyperpermeability, and VEGF-A applied to the basolateral side, but not the apical side, has been shown to be a strong barrier disruptor in blood-retinal barrier ECs. We show here that VEGF-A presented to the basolateral side of human umbilical vein ECs (HUVECs) induces higher permeability than apical stimulation, which is similar to results obtained with bovine retinal ECs. We investigated with immunocytochemistry and confocal imaging the distribution of VEGF receptor-2 (VEGFR2) and neuropilin-2 (NRP2) in perinuclear apical and basolateral membrane domains. Orthogonal z-sections of cultured HUVECs were obtained, and the fluorescence intensity at the apical and basolateral membrane compartments was measured. We found that VEGFR2 and NRP2 are evenly distributed throughout perinuclear apical and basolateral membrane compartments in unstimulated HUVECs grown on Transwell inserts, whereas basolateral VEGF-A stimulation induces a shift toward basolateral VEGFR2 and NRP2 localization. When HUVECs were grown on coverslips, the distribution of VEGFR2 and NRP2 across the perinuclear apical and basolateral membrane domains was different. Our findings demonstrate that HUVECs dynamically regulate VEGFR2 and NRP2 localization on membrane microdomains, depending on growth conditions and the polarity of VEGF-A stimulation.
Mots-clé
Animals, Cattle, Cell Membrane/metabolism, Cells, Cultured, Human Umbilical Vein Endothelial Cells/metabolism, Humans, Neuropilin-2/metabolism, Retina/metabolism, Vascular Endothelial Growth Factor A/metabolism, Vascular Endothelial Growth Factor Receptor-2/metabolism, apicobasal, endothelial barrier, membrane microdomains, receptors, vascular endothelial growth factor A, vascular endothelial growth factor receptor
Pubmed
Web of science
Open Access
Oui
Création de la notice
02/08/2022 13:07
Dernière modification de la notice
27/08/2024 6:30