Upregulation of Nox4 Promotes Angiotensin II-Induced Epidermal Growth Factor Receptor Activation and Subsequent Cardiac Hypertrophy by Increasing ADAM17 Expression

2013 ◽  
Vol 29 (10) ◽  
pp. 1310-1319 ◽  
Author(s):  
Si-Yu Zeng ◽  
Xi Chen ◽  
Shao-Rui Chen ◽  
Qin Li ◽  
Yu-Hua Wang ◽  
...  
Keyword(s):  
Epidermal Growth Factor Receptor ◽  
Angiotensin Ii ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Cardiac Hypertrophy ◽  
Growth Factor Receptor ◽  
Receptor Activation ◽  
Epidermal Growth

scholarly journals Angiotensin II–Induced Cardiac Hypertrophy and Hypertension Are Attenuated by Epidermal Growth Factor Receptor Antisense

Circulation ◽  
2002 ◽  
Vol 106 (8) ◽  
pp. 909-912 ◽  
Author(s):  
Shuntaro Kagiyama ◽  
Satoru Eguchi ◽  
Gerald D. Frank ◽  
Tadashi Inagami ◽  
Yuan Clare Zhang ◽  
...  
Keyword(s):  
Epidermal Growth Factor Receptor ◽  
Angiotensin Ii ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Cardiac Hypertrophy ◽  
Growth Factor Receptor ◽  
Epidermal Growth

Neutrophil elastase induces mucin production by ligand-dependent epidermal growth factor receptor activation

2002 ◽  
Vol 283 (3) ◽  
pp. L531-L540 ◽  
Author(s):  
Kazuhiro Kohri ◽  
Iris F. Ueki ◽  
Jay A. Nadel
Keyword(s):  
Epidermal Growth Factor Receptor ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Neutrophil Elastase ◽  
Growth Factor Receptor ◽  
Receptor Activation ◽  
Cell Culture Supernatant ◽  
Mucin Production ◽  
Egfr Activation ◽  
Epidermal Growth

Neutrophil products are implicated in hypersecretory airway diseases. To determine the mechanisms linking a proteolytic effect of human neutrophil elastase (HNE) and mucin overproduction, we examined the effects of HNE on MUC5AC mucin production in human airway epithelial (NCI-H292) cells. Stimulation with HNE for 5–30 min induced MUC5AC production 24 h later, which was prevented by HNE serine active site inhibitors, implicating a proteolytic effect of HNE. MUC5AC induction was preceded by epidermal growth factor receptor (EGFR) tyrosine phosphorylation and was prevented by selective EGFR tyrosine kinase inhibitors, implicating EGFR activation. HNE-induced MUC5AC production was inhibited by a neutralizing transforming growth factor-α (TGF-α, an EGFR ligand) antibody and by a neutralizing EGFR antibody but not by oxygen free radical scavengers, further implicating TGF-α and ligand-dependent EGFR activation in the response. HNE decreased pro-TGF-α in NCI-H292 cells and increased TGF-α in cell culture supernatant. From these results, we conclude that HNE-induced MUC5AC mucin production occurs via its proteolytic activation of an EGFR signaling cascade involving TGF-α.

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