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  • P-ISSN 1010-0695
  • E-ISSN 2288-3339

Mechanism of Herbal­ Acupuncture of Clematis Mandshurica Maxim. Water Extractby Stimulation of Sinsu loci Subcutaneouslyas Dual Inhibitor of Proinflammatory Cytokines on Adjuvant Arthritis in Rats.

Journal of Korean Medicine / Journal of Korean Medicine, (P)1010-0695; (E)2288-3339
2006, v.27 no.4, pp.186-191


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Abstract

Objective : Based on immunological mechanisms, this study examined whether subcutaneous (s.c.) injection of Clematis mandshurica Maxim. water extract (CMA) has anti-inflammatory effects, and its effect on TNF-α, IL-1 and IL-10 release from synoviocytes on adjuvant arthritis (AA) in the rat. Methods : Complete Freund's adjuvant was used to induce AA in rats. Synoviocytes were separated by the method of collagenase and DNase digestion. Synoviocytes proliferation was assayed by 3-(4, 5 dimethylthiazol 2 yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. TNF-α, IL-1 and interleukin-10 (IL-10) production of synoviocytes was measured with ELISA. The expression of IL-10 mRNA of synoviocytes was determined using RT PCR. Results : There were significant secondary inflammatory reactions in AA rats, accompanied by the decrease of body and immune organs weight simultaneously. Synoviocytes proliferation of AA rats significantly increased, and the levels of TNF-α and IL-1 in supernatants of synoviocytes in AA rats were also elevated compared with the sham group. The administration of CMA (2, 5, 10 mg/kg, s.c.) reduced the above changes significantly. In contrast to TNF-α and IL-1, IL-10 production and the level of its mRNA of synoviocytes in AA rats apparently decreased. CMA (2, 5, 10 mg/kg, s.c.) markedly increased IL-10 in synoviocytes at protein and transcription level. Conclusion : The results indicate that CMA has a beneficial effect on rat AA due to modulating inflammatory cytokine production of synoviocytes, which play a crucial role in the pathogenesis of this disease.

keywords
Clematis Mandshurica Maxim. water extract, adjuvant arthritis, Sinsu (BL 23)-loci, synoviocytes, TNF-α, IL-1, IL-10


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