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[目的]探讨买朱尼对兔子关节炎性软骨细胞凋亡的调控作用.[方法]兔子软骨细胞添加白介素1β (IL-1β)模拟关节炎性软骨细胞,用制备的低、中和高剂量买朱尼及对照含药血清进行干预.MTT法检测细胞活力;AnnexinV-FITC/PI双染色流式细胞术检测细胞凋亡;实时定量PCR和蛋白质印迹法检测Fas/FasL信号通路中死亡受体(Fas)、死亡配体(FasL)、含半胱氨酸的天冬氨酸蛋白水解酶8(caspase-8)、含半胱氨酸的天冬氨酸蛋白水解酶3(caspase-3)、Fas相关的死亡结构域白介素-1β-转换酶抑制蛋白(I-FLICE)和DNA修复酶(PARP)相关mRNA和蛋白表达水平.[结果]与模型组相比,买朱尼各剂量组显著减少IL-1β诱导的细胞活力下降(P<0.001),显著减少软骨细胞的早期凋亡(P<0.05),显著减少Fas、FasL、caspase-8和caspase-3的mRNA和蛋白表达(P<0.001),增加I-FLICE和PARP的mRNA和蛋白表达(P<0.001).[结论]买朱尼·阿扎拉克通过抑制Fas/FasL信号通路减少IL-1β诱导的兔子软骨细胞凋亡.“,”[Objective]ToexpLorethereguLationeffectandmechanismofMaizhuniontheapoptosisofrabbit chondrocytesofarthritis.[Methods]ApoptosisofarthriticchondrocyteswasinducedbyIL-1beta.NormaLserum orLow,mediumandhighdoseofMaizhuniserum wereaddedtocuLturemediumtoreguLateapoptosisofarthritic chondrocytes.CeLLviabiLitywasmeasuredbyMTTassay.CeLLapoptosiswasdetectedbyfLowcytometryusingthe AnnexinV-FITC/PIdoubLestaining.TheexpressionLeveLofFas,FasL,caspase-8,caspase-3,I-FLICE,PARP wasanaLyzedbyreaLtimequantitativePCRand westernbLotting.[ResuLts]ComparedtonormaLserum mimic group,aLLdosesofmaizhuni-treatedgroupssignificantLyincreasedtheviabiLityofchondrocytes(P<0.001)and significantLyreducedearLyapoptosisofchondrocytes(P<0.05).MeanwhiLe,maizhunisignificantLydecreasedthe expressionLeveLs(mRNAandprotein)ofFas,FasL,caspase-8andcaspase-3,whiLeincreasedtheexpressionofI-FLICEandPARP (P<0.001).[ConcLusion]Maizhuniinhibitstheapoptosisofrabbitchondrocytesinducedby IL-1betathroughmechanismofreguLatingFas/FasLsignaLpathway.