Abstract:
:Adriamycin-induced nephrosis in rats is a commonly used experimental model for pharmacological studies of human chronic renal diseases. Adriamycin-induced apoptosis of renal tubular cells has been reported in adriamycin-treated rats. In addition, prostacyclin (PGI(2)) is known to have various protective effects on many kinds of cells. To investigate the protective effect of PGI(2) on cells undergoing adriamycin-induced apoptosis, this study selectively augmented PGI(2) production via adenovirus-mediated transfer of genes for cyclooxygenase-1 (COX-1) and prostacyclin synthase (PGIS) (two key enzymes of PGI(2) synthesis) to renal tubular cells. This PGI(2) overexpression protected rat renal tubular cells from adriamycin-induced apoptosis. Ad-COX-1/PGIS transfection was found to reduce the adriamycin-stimulated activities of caspase-3 and caspase-9, inhibit adriamycin-induced release of cytochrome c, elevate the expression of Bcl-x(L), and suppress the activation and translocation of nuclear factor-kappaB (NF-kappaB) in adriamycin-treated renal tubular cells. Our results reveal that selective augmentation of PGI(2) production can protect rat renal tubular cells from adriamycin-induced apoptosis via the NF-kappaB signaling pathway. This implies the therapeutic potential of combined COX-1 and PGIS gene transfer in gene therapy for chronic renal diseases.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Chen CH,Lin H,Hsu YH,Sue YM,Cheng TH,Chan P,Chen THdoi
10.1016/j.ejphar.2005.10.057keywords:
subject
Has Abstractpub_date
2006-01-04 00:00:00pages
8-15issue
1-3eissn
0014-2999issn
1879-0712pii
S0014-2999(05)01100-3journal_volume
529pub_type
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journal_title:European journal of pharmacology
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