Abstract:
:S-Nitrosoglutathione (GSNO) is an endogenous bronchodilator levels of which are reduced in the airways of cystic fibrosis (CF) patients. GSNO has recently been shown to increase maturation of CFTR in CF cell lines at physiological concentrations. The ability of S-nitrosoglutathione to direct the DeltaF508-CFTR to the plasma membrane and restore the function of the cAMP-dependent chloride transport in cultured human airway epithelial cells has been studied. Immunocytochemistry showed a time- and dose-dependent increase of apically located CFTR after GSNO treatment. Chloride transport studies with the fluorescent dye N-(ethoxycarbonylmethyl)-6-methoxyquinolinium bromide (MQAE) showed that GSNO was able to induce a fourfold increase of cAMP-dependent chloride transport. Our data and the fact that endogenous GSNO levels are lower in the airways of CF patients make GSNO an interesting candidate for pharmacological treatment of cystic fibrosis.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Andersson C,Gaston B,Roomans GMdoi
10.1016/s0006-291x(02)02245-3subject
Has Abstractpub_date
2002-09-27 00:00:00pages
552-7issue
3eissn
0006-291Xissn
1090-2104pii
S0006291X02022453journal_volume
297pub_type
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