TY - JOUR
T1 - VEGFR2 pY949 signalling regulates adherens junction integrity and metastatic spread
AU - Li, Xiujuan
AU - Padhan, Narendra
AU - Sjöström, Elisabet O.
AU - Roche, Francis P.
AU - Testini, Chiara
AU - Honkura, Naoki
AU - Sáinz-Jaspeado, Miguel
AU - Gordon, Emma
AU - Bentley, Katie
AU - Philippides, Andrew
AU - Tolmachev, Vladimir
AU - Dejana, Elisabetta
AU - Stan, Radu V.
AU - Vestweber, Dietmar
AU - Ballmer-Hofer, Kurt
AU - Betsholtz, Christer
AU - Pietras, Kristian
AU - Jansson, Leif
AU - Claesson-Welsh, Lena
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016/3/23
Y1 - 2016/3/23
N2 - The specific role of VEGFA-induced permeability and vascular leakage in physiology and pathology has remained unclear. Here we show that VEGFA-induced vascular leakage depends on signalling initiated via the VEGFR2 phosphosite Y949, regulating dynamic c-Src and VE-cadherin phosphorylation. Abolished Y949 signalling in the mouse mutant Vegfr2 Y949F/Y949F leads to VEGFA-resistant endothelial adherens junctions and a block in molecular extravasation. Vessels in Vegfr2 Y949F/Y949F mice remain sensitive to inflammatory cytokines, and vascular morphology, blood pressure and flow parameters are normal. Tumour-bearing Vegfr2 Y949F/Y949F mice display reduced vascular leakage and oedema, improved response to chemotherapy and, importantly, reduced metastatic spread. The inflammatory infiltration in the tumour micro-environment is unaffected. Blocking VEGFA-induced disassembly of endothelial junctions, thereby suppressing tumour oedema and metastatic spread, may be preferable to full vascular suppression in the treatment of certain cancer forms.
AB - The specific role of VEGFA-induced permeability and vascular leakage in physiology and pathology has remained unclear. Here we show that VEGFA-induced vascular leakage depends on signalling initiated via the VEGFR2 phosphosite Y949, regulating dynamic c-Src and VE-cadherin phosphorylation. Abolished Y949 signalling in the mouse mutant Vegfr2 Y949F/Y949F leads to VEGFA-resistant endothelial adherens junctions and a block in molecular extravasation. Vessels in Vegfr2 Y949F/Y949F mice remain sensitive to inflammatory cytokines, and vascular morphology, blood pressure and flow parameters are normal. Tumour-bearing Vegfr2 Y949F/Y949F mice display reduced vascular leakage and oedema, improved response to chemotherapy and, importantly, reduced metastatic spread. The inflammatory infiltration in the tumour micro-environment is unaffected. Blocking VEGFA-induced disassembly of endothelial junctions, thereby suppressing tumour oedema and metastatic spread, may be preferable to full vascular suppression in the treatment of certain cancer forms.
UR - http://www.scopus.com/inward/record.url?scp=84962295137&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84962295137&partnerID=8YFLogxK
U2 - 10.1038/ncomms11017
DO - 10.1038/ncomms11017
M3 - Article
C2 - 27005951
AN - SCOPUS:84962295137
VL - 7
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
M1 - 11017
ER -