Objective:To study the correlation of extracellular matrix metalloproteinase inducer (EMMPRIN) expression with inflammatory response and matrix metalloproteinases (MMPs) /TIMPs in patients with myocardial infarction.M...Objective:To study the correlation of extracellular matrix metalloproteinase inducer (EMMPRIN) expression with inflammatory response and matrix metalloproteinases (MMPs) /TIMPs in patients with myocardial infarction.Methods: The patients who were diagnosed with acute myocardial infarction and the patients who were diagnosed with stable angina pectoris in the Second People's Hospital of Juancheng County between March 2014 and December 2017 were selected as the AMI group and SAP group respectively, and the healthy volunteers who received physical examination during the same period were selected as the control group. Peripheral blood was collected to detect the expression of EMMPRIN, and serum was collected to determine the contents of inflammatory cytokines and MMPs/TIMPs. Results: Peripheral blood EMMPRIN expression as well as serum ICAM1, VCAM1, IL-1β, IL-17, MMP2, MMP8 and MMP9 contents of AMI group and SAP group were significantly higher than those of control group whereas TGF-β1, sFGL-2, TIMP1 and TIMP2 contents were significantly lower than those of control group and the changes of above indexes in AMI group were more significant than those in SAP group. Serum ICAM1, VCAM1, IL-1β, IL-17, MMP2, MMP8 and MMP9 contents of AMI group of patients with high EMMPRIN expression were significantly higher than those of patients with low EMMPRIN expression whereas TGF-β1, sFGL-2, TIMP1 and TIMP2 contents were significantly lower than those of patients with low EMMPRIN expression.Conclusion:The high EMMPRIN expression in peripheral blood of patients with myocardial infarction can aggravate the inflammatory response and destroy the balance of MMPs/TIMPs.展开更多
目的:探讨高迁移率族蛋白(HMGB)1在类风湿关节炎(RA)病情活动中的作用机制。方法:选取RA患者74例(活动期38例、非活动期36例)及健康对照者26例。采用RT-PCR方法检测外周血单个核细胞(PBMC)中HMGB1 mRNA的表达,酶联免疫吸附(ELISA)方法...目的:探讨高迁移率族蛋白(HMGB)1在类风湿关节炎(RA)病情活动中的作用机制。方法:选取RA患者74例(活动期38例、非活动期36例)及健康对照者26例。采用RT-PCR方法检测外周血单个核细胞(PBMC)中HMGB1 mRNA的表达,酶联免疫吸附(ELISA)方法检测血清中HMGB1蛋白的表达。采用流式细胞术分析CD14+单核细胞表面Toll样受体(TLR)4和EMMPRIN/CD147的表达。结果:活动期RA组HMGB1 mRNA相对表达量和蛋白水平均高于健康对照者和非活动期RA患者[分别为2.63 vs 0.71,0.93和(10.20±1.24 vs 7.48±1.75,8.31±1.85)ng/ml)](P<0.01)。活动期RA患者CD14+单核细胞上TLR4和CD147的表达量均显著高于非活动期和健康对照组(P<0.01),非活动期患者显著高于健康对照组(P<0.01)。TLR4和CD147双阳性细胞数量和蛋白的相对表达量在活动期RA患者中均最高。血清中HMGB1蛋白水平与ESR、CRP、RF、及关节X线分期均呈正相关,亦与TLR4和CD147的表达呈正相关(P<0.05或P<0.01)。结论:RA患者PBMC具有合成和分泌HMGB1蛋白的功能。HMGB1可能通过与TLR4结合激活CD14+单核细胞并表达CD147,促进其向滑膜组织迁移而加速骨质破坏。展开更多
文摘Objective:To study the correlation of extracellular matrix metalloproteinase inducer (EMMPRIN) expression with inflammatory response and matrix metalloproteinases (MMPs) /TIMPs in patients with myocardial infarction.Methods: The patients who were diagnosed with acute myocardial infarction and the patients who were diagnosed with stable angina pectoris in the Second People's Hospital of Juancheng County between March 2014 and December 2017 were selected as the AMI group and SAP group respectively, and the healthy volunteers who received physical examination during the same period were selected as the control group. Peripheral blood was collected to detect the expression of EMMPRIN, and serum was collected to determine the contents of inflammatory cytokines and MMPs/TIMPs. Results: Peripheral blood EMMPRIN expression as well as serum ICAM1, VCAM1, IL-1β, IL-17, MMP2, MMP8 and MMP9 contents of AMI group and SAP group were significantly higher than those of control group whereas TGF-β1, sFGL-2, TIMP1 and TIMP2 contents were significantly lower than those of control group and the changes of above indexes in AMI group were more significant than those in SAP group. Serum ICAM1, VCAM1, IL-1β, IL-17, MMP2, MMP8 and MMP9 contents of AMI group of patients with high EMMPRIN expression were significantly higher than those of patients with low EMMPRIN expression whereas TGF-β1, sFGL-2, TIMP1 and TIMP2 contents were significantly lower than those of patients with low EMMPRIN expression.Conclusion:The high EMMPRIN expression in peripheral blood of patients with myocardial infarction can aggravate the inflammatory response and destroy the balance of MMPs/TIMPs.
文摘目的:探讨高迁移率族蛋白(HMGB)1在类风湿关节炎(RA)病情活动中的作用机制。方法:选取RA患者74例(活动期38例、非活动期36例)及健康对照者26例。采用RT-PCR方法检测外周血单个核细胞(PBMC)中HMGB1 mRNA的表达,酶联免疫吸附(ELISA)方法检测血清中HMGB1蛋白的表达。采用流式细胞术分析CD14+单核细胞表面Toll样受体(TLR)4和EMMPRIN/CD147的表达。结果:活动期RA组HMGB1 mRNA相对表达量和蛋白水平均高于健康对照者和非活动期RA患者[分别为2.63 vs 0.71,0.93和(10.20±1.24 vs 7.48±1.75,8.31±1.85)ng/ml)](P<0.01)。活动期RA患者CD14+单核细胞上TLR4和CD147的表达量均显著高于非活动期和健康对照组(P<0.01),非活动期患者显著高于健康对照组(P<0.01)。TLR4和CD147双阳性细胞数量和蛋白的相对表达量在活动期RA患者中均最高。血清中HMGB1蛋白水平与ESR、CRP、RF、及关节X线分期均呈正相关,亦与TLR4和CD147的表达呈正相关(P<0.05或P<0.01)。结论:RA患者PBMC具有合成和分泌HMGB1蛋白的功能。HMGB1可能通过与TLR4结合激活CD14+单核细胞并表达CD147,促进其向滑膜组织迁移而加速骨质破坏。
