PMID- 17629561 OWN - NLM STAT- MEDLINE DCOM- 20071126 LR - 20181201 IS - 0161-5890 (Print) IS - 0161-5890 (Linking) VI - 45 IP - 2 DP - 2008 Jan TI - Edaravone inhibits collagen-induced arthritis possibly through suppression of nuclear factor-kappa B. PG - 463-9 AB - OBJECTIVE: Rheumatoid arthritis (RA) is a chronic autoimmune disease which is induced by proinflammatory cytokines or oxidative stress. The activation of nuclear factor-kappa B (NF-kappaB) that contributed to imbalance between apoptosis and proliferation of rheumatoid synovial cells (SC). Edaravone, clinically available free radical scavenger in Japan, is confirmed to be beneficial in the acute stage of stroke. We aimed to investigate the suppressive effect of edaravone on collagen-induced arthritis (CIA) mice and on the activated molecules in SC stimulated by interleukin-1beta (IL-1beta). METHODS: Edaravone was administrated intravenously at a dose of 3mg/kg of body weight to CIA mice. The progression of CIA was evaluated by the macroscopic arthritis scoring system of paws. Interleukin-6 (IL-6) and matrix metalloproteinase-3 (MMP-3) concentrations in culture medium of human SC were measured by enzyme linked immunosorbent assays. Caspase-3/7 activity and nuclear factor-kappa B (NF-kappaB) protein level of cultured human SC were estimated by fluorometric assay and Western blot analysis, respectively. RESULTS: Edaravone significantly decreased macroscopic arthritis score in CIA mice. Acceleration of IL-6 and MMP-3 productions and attenuation of caspase-3/7 activity in IL-1beta-stimulated SC were abated by edaravone. Activated NF-kappaB in IL-1beta-stimulated SC was suppressed by edaravone. CONCLUSION: Edaravone, antioxidants available for clinical use, appears to have therapeutic effect on RA. We suggest that the inhibitory effect of edaravone on RA might be exerted, at least in part, through suppression of activated NF-kappaB. Therefore, we expect therapeutical use of edaravone as an anti-rheumatic agent. FAU - Arii, Kaoru AU - Arii K AD - Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Kochi University, Kohasu, Okoh-Cho, Nankoku, Kochi 783-8505, Japan. ariik@kochi-u-ac.jp FAU - Kumon, Yoshitaka AU - Kumon Y FAU - Sugahara, Kunio AU - Sugahara K FAU - Nakatani, Ko AU - Nakatani K FAU - Ikeda, Yukio AU - Ikeda Y FAU - Suehiro, Tadashi AU - Suehiro T FAU - Hashimoto, Kozo AU - Hashimoto K LA - eng PT - Journal Article DEP - 20070716 PL - England TA - Mol Immunol JT - Molecular immunology JID - 7905289 RN - 0 (Interleukin-6) RN - 0 (Transcription Factor RelA) RN - EC 3.4.22.- (Caspase 3) RN - EC 3.4.22.- (Caspase 7) RN - EC 3.4.24.17 (Matrix Metalloproteinase 3) RN - S798V6YJRP (Edaravone) RN - T3CHA1B51H (Antipyrine) SB - IM MH - Animals MH - Antipyrine/*analogs & derivatives/pharmacology MH - Arthritis, Experimental/*prevention & control MH - Caspase 3/metabolism MH - Caspase 7/metabolism MH - Cells, Cultured MH - Edaravone MH - Female MH - Humans MH - Interleukin-6/biosynthesis MH - Male MH - Matrix Metalloproteinase 3/biosynthesis MH - Mice MH - Synovial Membrane/drug effects/enzymology/pathology MH - Transcription Factor RelA/*metabolism EDAT- 2007/07/17 09:00 MHDA- 2007/12/06 09:00 CRDT- 2007/07/17 09:00 PHST- 2007/03/02 00:00 [received] PHST- 2007/05/21 00:00 [revised] PHST- 2007/05/22 00:00 [accepted] PHST- 2007/07/17 09:00 [pubmed] PHST- 2007/12/06 09:00 [medline] PHST- 2007/07/17 09:00 [entrez] AID - S0161-5890(07)00246-5 [pii] AID - 10.1016/j.molimm.2007.05.020 [doi] PST - ppublish SO - Mol Immunol. 2008 Jan;45(2):463-9. doi: 10.1016/j.molimm.2007.05.020. Epub 2007 Jul 16.