Abstract:
:It has been suggested that curcumin and other sarcoplasmic/endoplasmic reticulum Ca(2+)-pump inhibitors could correct the defect in the most common mutation (DeltaF508) in cystic fibrosis (CF), and restore normal chloride transport. In the present study, the effect of curcumin was tested on baby hamster kidney (BHK) cells transfected with DeltaF508-CFTR, a CF airway epithelial cell line (CFBE), and cells isolated from the nasal epithelium of CF-patient homozygous for the DeltaF508-mutation. Curcumin had a small effect on basal (non-CFTR-mediated) chloride efflux in CFBE and CF nasal epithelial cells, but did not increase the net cAMP-activated (CFTR-mediated) chloride efflux. Curcumin caused a small increase in net cAMP-activated chloride efflux from DeltaF508-CFTR BHK cells. Immunocytochemical analysis failed to show significant movement of DeltaF508-CFTR to the plasma membrane in DeltaF508-CFTR BHK cells or CFBE cells. It is concluded that it is unlikely that curcumin has a significant positive effect on CFTR-mediated chloride transport in airway epithelial cells.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Dragomir A,Björstad J,Hjelte L,Roomans GMdoi
10.1016/j.bbrc.2004.07.146subject
Has Abstractpub_date
2004-09-17 00:00:00pages
447-51issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(04)01623-7journal_volume
322pub_type
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