Shear stress promotes nitric oxide production in endothelial cells by sub-cellular delocalization of eNOS: A basis for shear stress mediated angiogenesis

Nitric Oxide ◽  
2010 ◽  
Vol 22 (4) ◽  
pp. 304-315 ◽  
Author(s):  
Gopi Krishna Kolluru ◽  
Swaraj Sinha ◽  
Syamantak Majumder ◽  
Ajit Muley ◽  
Jamila H. Siamwala ◽  
...  
2013 ◽  
Vol 104 (10) ◽  
pp. 2295-2306 ◽  
Author(s):  
Andrew Koo ◽  
David Nordsletten ◽  
Renato Umeton ◽  
Beracah Yankama ◽  
Shiva Ayyadurai ◽  
...  

2008 ◽  
Vol 36 (4) ◽  
pp. 571-579 ◽  
Author(s):  
Andrew Yee ◽  
Kami A. Bosworth ◽  
Daniel E. Conway ◽  
Suzanne G. Eskin ◽  
Larry V. McIntire

2006 ◽  
Vol 97 (5) ◽  
pp. 1047-1052 ◽  
Author(s):  
HUNTER WESSELLS ◽  
THOMAS H. TEAL ◽  
KAREN ENGEL ◽  
CHRISTOPHER J. SULLIVAN ◽  
BYRON GALLIS ◽  
...  

2013 ◽  
Vol 24 (3) ◽  
pp. 398-408 ◽  
Author(s):  
Arif Yurdagul ◽  
Jie Chen ◽  
Steven Daniel Funk ◽  
Patrick Albert ◽  
Christopher G. Kevil ◽  
...  

Shear stress generated by distinct blood flow patterns modulates endothelial cell phenotype to spatially restrict atherosclerotic plaque development. Signaling through p21-activated kinase (PAK) mediates several of the deleterious effects of shear stress, including enhanced NF-κB activation and proinflammatory gene expression. Whereas shear stress activates PAK in endothelial cells on a fibronectin matrix, basement membrane proteins limit shear-induced PAK activation and inflammation through a protein kinase A–dependent pathway; however, the mechanisms underlying this regulation were unknown. We show that basement membrane proteins limit membrane recruitment of PAK2, the dominant isoform in endothelial cells, by blocking its interaction with the adaptor protein Nck. This uncoupling response requires protein kinase A–dependent nitric oxide production and subsequent PAK2 phosphorylation on Ser-20 in the Nck-binding domain. Of importance, shear stress does not stimulate nitric oxide production in endothelial cells on fibronectin, resulting in enhanced PAK activation, NF-κB phosphorylation, ICAM-1 expression, and monocyte adhesion. These data demonstrate that differential flow–induced nitric oxide production regulates matrix-specific PAK signaling and describe a novel mechanism of nitric oxide–dependent NF-κB inhibition.


Sign in / Sign up

Export Citation Format

Share Document