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NF-κB信号通路的阻断对类风湿关节炎滑膜细胞凋亡与炎症的影响 被引量:19

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摘要 目的探讨核因子(NF)-κB信号通路的阻断对类风湿关节炎(RA)滑膜细胞凋亡与炎症的影响。方法分离正常滑膜组织及RA滑膜组织中成纤维滑膜细胞(FLS),分为正常FLS组(正常组),RA FLS组(模型组),NF-κB抑制剂(PDTC)低、中、高剂量组(2,5,10μmol/L)(PDTC组)。四甲基偶氮唑蓝比色法(MTT)检测PDTC对RA FLS细胞活力的影响,Annexin V-FITC流式双染检测各组细胞凋亡情况,酶联免疫吸附(ELISA)法检测各组细胞上清液中肿瘤坏死因子(TNF)-α,白介素(IL)-1β含量,Western印迹检测各组细胞中环氧化酶(COX)-2,Bax,Bcl-2蛋白的表达。结果与模型组比较,PDTC低、中、高剂量组能显著抑制RA FLS活力,诱导RA FLS凋亡,抑制RA FLS细胞释放TNF-α、IL-1β因子,下调COX-2和Bcl-2表达,上调Bax表达(均P<0.05)。结论阻断NF-κB信号通路能够显著抑制RA FLS细胞炎症并诱导细胞凋亡。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2015年第24期7022-7024,共3页 Chinese Journal of Gerontology
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