Abstract:
AIM:Activation of sphingosine kinase (SK) is a key response to many inflammatory processes. The present studies test the hypothesis that an orally available SK inhibitor, ABC294640, would be effective in rodent models of Crohn's disease. METHODS:Trinitrobenzene sulfonic acid (TNBS) was administered rectally to mice and rats. Rats were treated with ABC294640 orally alone or in combination with olsalazine and disease progression was monitored. RESULTS:For both rodent species, treatment with ABC294640 attenuated disease progression. Colon samples from the ABC294640-treated animals had improved histology and cytokine parameters when compared with vehicle-treated animals. The expression of SK was similarly increased in TNBS-treated animals and in human colon tissue specimens from inflammatory bowel disease patients relative to normal, control patients. CONCLUSIONS:Sphingosine kinase may be a critical mediator of colonic damage during intestinal inflammation, and pharmacologic inhibitors of this enzyme may prove useful in the treatment of Crohn's disease.
journal_name
Inflammopharmacologyjournal_title
Inflammopharmacologyauthors
Maines LW,Fitzpatrick LR,Green CL,Zhuang Y,Smith CDdoi
10.1007/s10787-010-0032-xsubject
Has Abstractpub_date
2010-04-01 00:00:00pages
73-85issue
2eissn
0925-4692issn
1568-5608journal_volume
18pub_type
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journal_title:Inflammopharmacology
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journal_title:Inflammopharmacology
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journal_title:Inflammopharmacology
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journal_title:Inflammopharmacology
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journal_title:Inflammopharmacology
pub_type: 杂志文章
doi:10.1007/s10787-998-0009-1
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