The ICE inhibitor pralnacasan prevents DSS-induced colitis in C57BL/6 mice and suppresses IP-10 mRNA but not TNF-alpha mRNA expression

Details

Serval ID
serval:BIB_7DC0E4A5E2D9
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
The ICE inhibitor pralnacasan prevents DSS-induced colitis in C57BL/6 mice and suppresses IP-10 mRNA but not TNF-alpha mRNA expression
Journal
Digestive Diseases and Sciences
Author(s)
Bauer  C., Loher  F., Dauer  M., Mayer  C., Lehr  H. A., Schonharting  M., Hallwachs  R., Endres  S., Eigler  A.
ISSN
0163-2116 (Print)
Publication state
Published
Issued date
2007
Volume
52
Number
7
Pages
1642-1652
Notes
PT - Journal Article
Abstract
Previously we demonstrated an ameliorating effect of the interleukin-1beta converting enzyme (ICE) inhibitor pralnacasan on dextran sulfate sodium (DSS)-induced colitis. This study investigates the effects of pralnacasan on cytokine expression in DSS-induced colitis. Colitis was induced by oral administration of DSS. Mice were treated intraperitoneally with the ICE inhibitor pralnacasan (50 mg/kg body weight twice daily). Body weight as well as the presence of occult blood or diarrhea was monitored daily. Subgroups were sacrificed at days 4, 8, and 11 after the beginning of DSS application. Cytokine profiles in colonic tissue were analyzed on the protein level by ELISA and on the mRNA level by real time RT-PCR. Administration of DSS led to an increase in IL-18, IL-12, TNF-alpha, and IFN-gamma protein as well as IP-10 and TNF-alpha mRNA. The increase in IL-18 and IFN-gamma was reduced by ICE inhibition. Pralnacasan prevented DSS-induced colitis in C57BL/6 mice. In C57BL/6 mice, the DSS-induced increase in IP-10 mRNA, but not TNF-alpha mRNA, was completely prevented by ICE inhibition. In conclusion, prevention of colitis in C57BL/6 mice was associated with a suppresion of IP-10 mRNA, but not TNF-alpha mRNA expression, indicating that IL-18-mediated cytokine production is a key element in the pathogenesis of DSS-induced colitis
Pubmed
Web of science
Create date
29/01/2008 18:36
Last modification date
20/08/2019 14:39
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