Transcription factor decoy for NFkappaB inhibits TNF-alpha-induced cytokine and adhesion molecule expression in vivo.

Journal Article

The expression of several cytokines and adhesion molecules is regulated by the transcription factor NFkappaB, which is activated by tumor necrosis factor alpha (TNF-alpha). In this study, we employed a mouse model of nephritis induced by TNF-alpha to examine whether inhibition of NFkappaB activity using transcription factor decoy oligonucleotides (ODN) blocks cytokine and adhesion molecule expression and attenuates the renal inflammatory response. First, we developed a method for delivering FITC-ODN in vivo into mouse kidney glomeruli by employing HVJ-liposome. Then, in order to study the feasibility of decoy strategy in vivo, the reporter gene chloramphenicol acetyltransferase (CAT) driven by three tandemly repeated NFkappaB binding sequences was transfected into the kidney. Intrapenetorial injection of TNF-alpha stimulated CAT expression in vivo, and the increase in CAT expression was completely abolished by NFkappaB decoy ODN, but not scrambled ODN. Therefore, we examined the effect of NFkappaB decoy ODN transfection on TNF-alpha-induced endogenous interleukin (IL)-1alpha, IL-1beta, IL-6, ICAM-1 and VCAM-1 gene expression as assessed by RT-PCR and Northern blotting. Our present data showed that NFkappaB decoy, but not scrambled, ODN abolished TNF-alpha induced gene expression in vivo, as well as glomerular inflammation as assessed by CD45 staining. Taken together, our results suggest the potential utility of NFkappaB decoy strategy for molecular therapy to glomerular inflammatory diseases.

Full Text

Duke Authors

Cited Authors

  • Tomita, N; Morishita, R; Tomita, S; Gibbons, GH; Zhang, L; Horiuchi, M; Kaneda, Y; Higaki, J; Ogihara, T; Dzau, VJ

Published Date

  • August 2000

Published In

Volume / Issue

  • 7 / 15

Start / End Page

  • 1326 - 1332

PubMed ID

  • 10918504

International Standard Serial Number (ISSN)

  • 0969-7128

Digital Object Identifier (DOI)

  • 10.1038/sj.gt.3301243

Language

  • eng

Conference Location

  • England