PMID- 21811249 OWN - NLM STAT- MEDLINE DCOM- 20120203 LR - 20220311 IS - 1525-0024 (Electronic) IS - 1525-0016 (Print) IS - 1525-0016 (Linking) VI - 19 IP - 10 DP - 2011 Oct TI - Alternative for anti-TNF antibodies for arthritis treatment. PG - 1887-95 LID - 10.1038/mt.2011.156 [doi] AB - Tumor necrosis factor-alpha (TNF-alpha), a proinflammatory cytokine, plays a key role in the pathogenesis of many inflammatory diseases, including arthritis. Neutralization of this cytokine by anti-TNF-alpha antibodies has shown its efficacy in rheumatoid arthritis (RA) and is now widely used. Nevertheless, some patients currently treated with anti-TNF-alpha remain refractory or become nonresponder to these treatments. In this context, there is a need for new or complementary therapeutic strategies. In this study, we investigated in vitro and in vivo anti-inflammatory potentialities of an anti-TNF-alpha triplex-forming oligonucleotide (TFO), as judged from effects on two rat arthritis models. The inhibitory activity of this TFO on articular cells (synoviocytes and chondrocytes) was verified and compared to that of small interfering RNA (siRNA) in vitro. The use of the anti-TNF-alpha TFO as a preventive and local treatment in both acute and chronic arthritis models significantly reduced disease development. Furthermore, the TFO efficiently blocked synovitis and cartilage and bone destruction in the joints. The results presented here provide the first evidence that gene targeting by anti-TNF-alpha TFO modulates arthritis in vivo, thus providing proof-of-concept that it could be used as therapeutic tool for TNF-alpha-dependent inflammatory disorders. FAU - Paquet, Joseph AU - Paquet J AD - UMR 7561 CNRS, Nancy Universite Physiopathologie, Pharmacologie et Ingenierie Articulaires, Vandoeuvre les Nancy, France. FAU - Henrionnet, Christel AU - Henrionnet C FAU - Pinzano, Astrid AU - Pinzano A FAU - Vincourt, Jean-Baptiste AU - Vincourt JB FAU - Gillet, Pierre AU - Gillet P FAU - Netter, Patrick AU - Netter P FAU - Chary-Valckenaere, Isabelle AU - Chary-Valckenaere I FAU - Loeuille, Damien AU - Loeuille D FAU - Pourel, Jacques AU - Pourel J FAU - Grossin, Laurent AU - Grossin L LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110802 PL - United States TA - Mol Ther JT - Molecular therapy : the journal of the American Society of Gene Therapy JID - 100890581 RN - 0 (Autoantibodies) RN - 0 (RNA, Small Interfering) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Animals MH - Arthritis/*drug therapy/immunology MH - Autoantibodies/immunology/*therapeutic use MH - Cells, Cultured MH - Disease Models, Animal MH - *Immunotherapy MH - RNA, Small Interfering/genetics MH - Rats MH - Tumor Necrosis Factor-alpha/genetics/*immunology PMC - PMC3188747 EDAT- 2011/08/04 06:00 MHDA- 2012/02/04 06:00 PMCR- 2012/10/01 CRDT- 2011/08/04 06:00 PHST- 2011/08/04 06:00 [entrez] PHST- 2011/08/04 06:00 [pubmed] PHST- 2012/02/04 06:00 [medline] PHST- 2012/10/01 00:00 [pmc-release] AID - S1525-0016(16)32781-2 [pii] AID - 10.1038/mt.2011.156 [doi] PST - ppublish SO - Mol Ther. 2011 Oct;19(10):1887-95. doi: 10.1038/mt.2011.156. Epub 2011 Aug 2.