VEGF-A165b protects against proteinuria in a mouse model with progressive depletion of all endogenous VEGF-A splice isoforms from the kidney
dc.contributor.author | Stevens, M | |
dc.contributor.author | Neal, CR | |
dc.contributor.author | Salmon, AHJ | |
dc.contributor.author | Bates, DO | |
dc.contributor.author | Harper, SJ | |
dc.contributor.author | Oltean, S | |
dc.date.accessioned | 2019-02-25T15:41:30Z | |
dc.date.issued | 2017-06-02 | |
dc.description.abstract | Key points: Progressive depletion of all vascular endothelial growth factor A (VEGF-A) splice isoforms from the kidney results in proteinuria and increased glomerular water permeability, which are both rescued by over-expression of VEGF-A165b only. VEGF-A165b rescues the increase in glomerular basement membrane and podocyte slit width, as well as the decrease in sub-podocyte space coverage, produced by VEGF-A depletion. VEGF-A165b restores the expression of platelet endothelial cell adhesion molecule in glomerular endothelial cells and glomerular capillary circumference. VEGF-A165b has opposite effects to VEGF-A165 on the expression of genes involved in endothelial cell migration and proliferation. Abstract: Chronic kidney disease is strongly associated with a decrease in the expression of vascular endothelial growth factor A (VEGF-A). However, little is known about the contribution of VEGF-A splice isoforms to kidney physiology and pathology. Previous studies suggest that the splice isoform VEGF-A165b (resulting from alternative usage of a 3′ splice site in the terminal exon) is protective for kidney function. In the present study, we show, in a quad-transgenic model, that over-expression of VEGF-A165b alone is sufficient to rescue the increase in proteinuria, as well as glomerular water permeability, in the context of progressive depletion of all VEGF-A isoforms from the podocytes. Ultrastructural studies show that the glomerular basement membrane is thickened, podocyte slit width is increased and sub-podocyte space coverage is reduced when VEGF-A is depleted, all of which are rescued in VEGF-A165b over-expressors. VEGF-A165b restores the expression of platelet endothelial cell adhesion molecule-1 in glomerular endothelial cells and glomerular capillary circumference. Mechanistically, it increases VEGF receptor 2 expression both in vivo and in vitro and down-regulates genes involved in migration and proliferation of endothelial cells, otherwise up-regulated by the canonical isoform VEGF-A165. The results of the present study indicate that manipulation of VEGF-A splice isoforms could be a novel therapeutic avenue in chronic glomerular disease. | en_GB |
dc.description.sponsorship | Biotechnology and Biological Sciences Research Council | en_GB |
dc.description.sponsorship | Medical Research Council | en_GB |
dc.description.sponsorship | British Heart Foundation | en_GB |
dc.identifier.citation | Vol. 595, pp. 6281 - 6298 | en_GB |
dc.identifier.doi | 10.1113/JP274481 | |
dc.identifier.grantnumber | BB/J007293/2 | en_GB |
dc.identifier.grantnumber | G10002073 | en_GB |
dc.identifier.grantnumber | PG/15/53/31371 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/36060 | |
dc.language.iso | en | en_GB |
dc.publisher | Wiley/Physiological Society | en_GB |
dc.rights | © 2017 The Authors. The Journal of Physiology published by John Wiley & Sons Ltd on behalf of The Physiological Society. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | en_GB |
dc.subject | alternative splicing | en_GB |
dc.subject | reno‐protection | en_GB |
dc.subject | vascular endothelial growth factor | en_GB |
dc.title | VEGF-A165b protects against proteinuria in a mouse model with progressive depletion of all endogenous VEGF-A splice isoforms from the kidney | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2019-02-25T15:41:30Z | |
dc.identifier.issn | 0022-3751 | |
dc.description | This is the final version. Available from Wiley/Physiological Society via the DOI in this record. | en_GB |
dc.identifier.journal | Journal of Physiology | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2017-05-17 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2017-05-17 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2019-02-25T15:22:09Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2019-02-25T15:41:32Z | |
refterms.panel | A | en_GB |
refterms.depositException | publishedGoldOA |
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Except where otherwise noted, this item's licence is described as © 2017 The Authors. The Journal of Physiology published by John Wiley & Sons Ltd on behalf of The Physiological Society.
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.