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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Am+J+Physiol+Heart+Circ+Physiol
2016 ; 310
(8
): H1039-44
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S-nitrosylation regulates VE-cadherin phosphorylation and internalization in
microvascular permeability
#MMPMID26921435
Guequén A
; Carrasco R
; Zamorano P
; Rebolledo L
; Burboa P
; Sarmiento J
; Boric MP
; Korayem A
; Durán WN
; Sánchez FA
Am J Physiol Heart Circ Physiol
2016[Apr]; 310
(8
): H1039-44
PMID26921435
show ga
The adherens junction complex, composed mainly of vascular endothelial
(VE)-cadherin, ?-catenin, p120, and ?-catenin, is the main element of the
endothelial barrier in postcapillary venules.S-nitrosylation of ?-catenin and
p120 is an important step in proinflammatory agents-induced hyperpermeability. We
investigated in vitro and in vivo whether or not VE-cadherin isS-nitrosylated
using platelet-activating factor (PAF) as agonist. We report that PAF-stimulates
S-nitrosylation of VE-cadherin, which disrupts its association with ?-catenin. In
addition, based on inhibition of nitric oxide production, our results strongly
suggest that S-nitrosylation is required for VE-cadherin phosphorylation on
tyrosine and for its internalization. Our results unveil an important mechanism
to regulate phosphorylation of junctional proteins in association with
S-nitrosylation.