Journal
JOURNAL OF CLINICAL INVESTIGATION
Volume 115, Issue 11, Pages 3057-3071Publisher
AMER SOC CLINICAL INVESTIGATION INC
DOI: 10.1172/JCI24792
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- Intramural NIH HHS Funding Source: Medline
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The Th1 and Th2 T cell responses that underlie inflammatory bowel diseases (IBDs) are likely to depend on NF-kappa B transcriptional activity. We explored this possibility in studies in which we determined the capacity of NF-kappa B decoy oligodeoxynucleotides (decoy ODNs) to treat various murine models of IBD. In initial studies, we showed that i.r. (intrarectal) or i.p. administration of decoy ODNs encapsulated in a viral envelope prevented and treated a model of acute trinitrobenzene sulfonic acid-induced (TNBS-induced) colitis, as assessed by clinical course and effect on Th1 cytokine production. In further studies, we showed that NF-kappa B decoy ODNs were also an effective treatment of a model of chronic TNBS-colitis, inhibiting both the production of IL-23/IL-17 and the development of fibrosis that characterizes this model. Treatment of TNBS-induced inflammation by i.r. administration of NF-kappa B decoy ODNs did not inhibit NF-kappa B in extraintestinal organs and resulted in CD4(+) T cell apoptosis, suggesting that such treatment is highly focused and durable. Finally, we showed that NF-kappa B decoy ODNs also prevented and treated oxazolone-colitis and thus affect a Th2-mediated inflammatory process. In each case, decoy administration led to inflammation-clearing effects, suggesting a therapeutic potency applicable to human IBD. OF
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