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本文研究了白芍总甙(TGP)对大鼠佐剂性关节炎(AA)滑膜细胞功能以及脾淋已细胞增殖反应的影响及其作用机理。结果表明,TGP50mg·kg-1·d-1×10dig可使AA大鼠滑膜细胞过度分泌白介素1,肿癌坏死因子(TNF)和前列腺素E2(PGE2)的功能恢复正常,继而下调滑膜成纤维细胞的增殖;吲哚美辛2mg·kg-1·d-1×10dig抑制PGE2产生,但增加AA大鼠滑膜细胞分泌白介素1与TNF,从而促进滑膜成纤维细胞的增殖。TGP50mg·kg-1·d-1×10dig恢复AA大鼠脾细胞过低的伴刀豆球蛋白A(ConA)增殖反应与其下调巨噬细胞产生一氧化氮和PGE2有关;体外实验亦证明,高浓度(0.4——6.4mg·L-1)TGP负调节脾细胞ConA增殖反应与其促进巨噬细胞产生一氧化氮和PGE2有关。
This paper studied the effects of TGP on the synoviocyte function and the proliferation of splenocytes in rats with adjuvant arthritis (AA) and its mechanism of action. The results showed that TGP50mg·kg-1·d-1×10dig could make the synoviocytes of AA rats excessively secrete interleukin-1, and the function of tumor necrosis factor (TNF) and prostaglandin E2 (PGE2) returned to normal, and then the synovial membrane was down-regulated. Fibroblast proliferation; indomethacin 2mg·kg-1·d-1×10dig inhibited PGE2 production but increased interleukin-1 and TNF in synovial cells of AA rats, thereby promoting the proliferation of synovial fibroblasts. The recovery of concanavalin A (ConA) proliferative response of spleen cells in AA rats restored by TGP 50mg·kg-1·d-1×10dig was related to the downregulation of nitric oxide and PGE2 production by macrophages. In vitro experiments also showed that The concentration of (0.4-6.4 mg·L-1) TGP negatively regulates the proliferation of splenocytes ConA and is related to the promotion of nitric oxide and PGE2 production by macrophages.