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Gastrodia elata attenuates inflammatory response by inhibiting the NF-κB pathway in rheumatoid arthritis fibroblast-like synoviocytes.
Biomedicine & Pharmacotherapy 2017 January
Gastrodia elata (GE), which belongs to the Orchidaceae family, was found to possess anti-inflammatory activity. However, the effect of GE on inflammatory response in rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS) remains largely unknown. Thus, the aim of this study was to investigate the effects of GE on tumor necrosis factor-α (TNF-α)-induced inflammatory response in RA-FLS and the underlying molecular mechanism was also explored. Our results demonstrated that GE significantly attenuated TNF-α-induced IL-6 and IL-8 production in RA-FLS. GE also inhibited TNF-α-induced MMP-3 and MMP-13 expression in RA-FLS. Furthermore, pretreatment with GE significantly attenuated TNF-α-induced the expression of p-p65 and IκBα degradation in RA-FLS. In conclusion, this study demonstrated for the first time that GE attenuated inflammatory response by inhibiting the NF-κB pathway signaling in RA-FLS. Thus, GE might have a therapeutic potential towards the treatment of RA.
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