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RANKL和M-CSF在CIA大鼠关节滑膜的表达及药物的干预作用

, PP. 1813-1817

Keywords: 胶原诱导性关节炎,大鼠,艾拉莫德,甲氨蝶呤

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Abstract:

目的初步探讨RANKL和M-CSF在CIA大鼠关节滑膜的表达及T-614、MTX的干预作用。方法通过鸡Ⅱ型胶原和完全弗氏佐剂混合的胶原乳剂免疫大鼠,建立CIA大鼠模型,将CIA大鼠随机分为模型对照组、T-614组、MTX组和T-614+MTX组。药物干预组大鼠分别用T-614、MTX及T-614联合MTX干预3周。关节炎指数(arthritisindex,AI)评分评价关节炎程度,HE染色观察踝关节组织形态学变化,X线片观察骨侵蚀情况,高频超声观察踝关节并测量滑膜厚度,Westernblot法检测滑膜RANKL和M-CSF表达。结果与正常对照组相比,模型对照组AI评分、病理评分、X线评分、超声下滑膜厚度、关节滑膜RANKL,M-CSF表达均增加(P<0.05);与模型对照组相比,T-614组、MTX组、T-614联合MTX组上述观察指标均降低(P<0.05);与T-614组、MTX组相比,T-614联合MTX组上述观察指标均降低(P<0.05);T-614组和MTX组之间上述观察指标差异无统计学意义(P>0.05)。结论RANKL和M-CSF参与了CIA大鼠关节滑膜病变的发生、发展,T-614、MTX可能通过减少细胞因子RANKL,M-CSF的生成来延缓关节滑膜病变的进展,T-614与MTX具有一定的协同效应。

References

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