Nox4 NADPH oxidase mediates peroxynitrite-dependent uncoupling of endothelial nitric-oxide synthase and fibronectin expression in response to angiotensin II: Role of mitochondrial reactive oxygen species

Doug Yoon Lee, Fabien Wauquier, Assaad A. Eid, Linda J. Roman, Goutam Ghosh-Choudhury, Khaled Khazim, Karen Block, Yves Gorin

Research output: Contribution to journalArticle

77 Scopus citations


Background:Oxidative stress is critical for the fibrotic response of mesangial cells (MCs) to angiotensin II. Results:Nox4- and mitochondrial reactive oxygen species (ROS)-dependent endothelial nitric-oxide synthase (eNOS) uncoupling led to fibronectin accumulation in MCs stimulated by angiotensin II. Conclusion:The Nox4/mitochondrial ROS/eNOS pathway mediates angiotensin II-induced MC injury. Significance:Targeting Nox4 and mitochondrial ROS is a promising therapeutic approach.

Original languageEnglish (US)
Pages (from-to)28668-28686
Number of pages19
JournalJournal of Biological Chemistry
Issue number40
StatePublished - Oct 4 2013


ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this