NADPH oxidase 4 mediates upregulation of type 4 phosphodiesterases in human endothelial cells

2012 ◽  
Vol 227 (5) ◽  
pp. 1941-1950 ◽  
Author(s):  
Saima Muzaffar ◽  
Jamie Y. Jeremy ◽  
Gianni D. Angelini ◽  
Nilima Shukla
2013 ◽  
Vol 452 (2) ◽  
pp. 231-239 ◽  
Author(s):  
Rafał Kozieł ◽  
Haymo Pircher ◽  
Manuela Kratochwil ◽  
Barbara Lener ◽  
Martin Hermann ◽  
...  

ROS (reactive oxygen species) generated by NADPH oxidases play an important role in cellular signal transduction regulating cell proliferation, survival and differentiation. Nox4 (NADPH oxidase 4) induces cellular senescence in human endothelial cells; however, intracellular targets for Nox4 remained elusive. In the present study, we show that Nox4 induces mitochondrial dysfunction in human endothelial cells. Nox4 depletion induced alterations in mitochondrial morphology, stabilized mitochondrial membrane potential and decreased production of H2O2 in mitochondria. High-resolution respirometry in permeabilized cells combined with native PAGE demonstrated that Nox4 specifically inhibits the activity of mitochondrial electron transport chain complex I, and this was associated with a decreased concentration of complex I subunits. These data suggest a new pathway by which sustained Nox4 activity decreases mitochondrial function.


2012 ◽  
Vol 30 ◽  
pp. e278
Author(s):  
Hitesh M. Peshavariya ◽  
Guei-Sheung Liu ◽  
Catherine W.T. Chang ◽  
Fan Jiang ◽  
Elsa C. Chan ◽  
...  

PLoS ONE ◽  
2013 ◽  
Vol 8 (4) ◽  
pp. e60790 ◽  
Author(s):  
Hitesh M. Peshavariya ◽  
Caroline J. Taylor ◽  
Celeste Goh ◽  
Guei-Sheung Liu ◽  
Fan Jiang ◽  
...  

Hypertension ◽  
2006 ◽  
Vol 48 (5) ◽  
pp. 950-957 ◽  
Author(s):  
Fan Jiang ◽  
Sarah J. Roberts ◽  
Srinivasa raju Datla ◽  
Gregory J. Dusting

2006 ◽  
Vol 2006 (Spring) ◽  
Author(s):  
Huige Li ◽  
Hui Xu ◽  
Isolde Brausch ◽  
Marcus Hortmann ◽  
Ulrich Förstermann

2006 ◽  
Vol 45 (3) ◽  
pp. e78
Author(s):  
Fan Jiang ◽  
Sarah J. Roberts ◽  
Srinivasa Raju Datla ◽  
Gregory J. Dusting

2008 ◽  
Vol 31 (10) ◽  
pp. 1291-1301 ◽  
Author(s):  
Won Sun Park ◽  
Eun A. Ko ◽  
In Duk Jung ◽  
Youn Kyoung Son ◽  
Hyoung Kyu Kim ◽  
...  

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