【摘 要】
：
目的 通过研究p38丝裂原活化蛋白激酶(MAPK)信号通路在肿瘤坏死因子样凋亡的微弱诱导剂(TWEAK)诱导类风湿关节炎(RA)成纤维样滑膜细胞(FLS)合成基质金属蛋白酶(MMP)-1过程中
【机 构】
：
中国医科大学附属第一医院风湿免疫科,沈阳,110001
论文部分内容阅读
目的 通过研究p38丝裂原活化蛋白激酶(MAPK)信号通路在肿瘤坏死因子样凋亡的微弱诱导剂(TWEAK)诱导类风湿关节炎(RA)成纤维样滑膜细胞(FLS)合成基质金属蛋白酶(MMP)-1过程中的作用,探讨TWEAK参与RA发病的机制.方法 将重组TWEAK与FLS共培养,对经或未经SB203580预处理的FLS,应用酶联免疫吸附试验(ELISA)法检测细胞培养液中MMP-1水平;应用Western-blot法检测FLS中p-p38MAPK和P65的表达.结果 100 ng/ml的TWEAK能够明显诱导RAFLS合成MMP-1;SB203580能够部分抑制TWEAK诱导RA FLS合成的MMP-1;TWEAK作用于RAFLS,能够使D38MAPK磷酸化,并使细胞核内P65蛋白表达增加.结论 TWEAK诱导RA FLS合成MMP-1过程中,p38MAPK信号通路处于激活状态,并诱导核因子(NF)-κB的表达.
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