目的:初步探讨强直性脊柱炎(AS)患者外周血中Th17细胞、调节性T细胞(Treg)、Th1细胞免疫失衡及其与疾病活动的相关性。方法:分离AS患者(61例)和健康对照组(36例)外周血单个核细胞(PBMCS),应用Rt-PCR检测Th17、Treg、Th1的特异性转录因子...目的:初步探讨强直性脊柱炎(AS)患者外周血中Th17细胞、调节性T细胞(Treg)、Th1细胞免疫失衡及其与疾病活动的相关性。方法:分离AS患者(61例)和健康对照组(36例)外周血单个核细胞(PBMCS),应用Rt-PCR检测Th17、Treg、Th1的特异性转录因子RORC、FoxP3、T-bet的mRNA表达水平;流式细胞术检测CD4+CD25+FoxP3+T细胞、CD4+IL-17+Th细胞及CD4+Th1细胞的比率;ELISA分析外周血IL-17、IL-23、TNF-α、IL-6等蛋白水平。结果:Foxp3 mRNA表达量AS组显著低于健康对照组(0.66±0.37 vs 1.5±0.82,P<0.01)且与AS活动度指数(ASDAS)及IL-23蛋白水平互为强负相关(r=-0.46,P<0.01,r=-0.46,P<0.05);而RORC mRNA表达水平AS组显著高于健康对照组(1.33±0.77 vs 0.83±0.52,P<0.05),与ASDAS呈显著正相关(r=0.63,P<0.05)且与IL-17、IL-23、TNF-α蛋白水平呈强正相关(r=0.52,P<0.05;r=0.57,P<0.05;r=0.52,P<0.05);T-bet mRNA表达量AS组显著低于健康对照组(0.68±0.65 vs 2.21±1.29,P<0.01)且与RORC mRNA表达量显著负相关(r=-0.37,P<0.05);CD4+IL-17+Th17细胞比率AS组明显高于健康对照组(1.987±0.58 vs 0.647±0.33,P<0.05),CD4+CD25+FoxP3+T细胞及CD4+Th1细胞的比率AS组明显低于对照组(0.94±0.38 vs2.13±0.75;3.98±0.72 vs 6.85±1.36,P<0.05);IL-17、IL-23、TNF-α表达量AS组显著高于健康对照组(37.81±5.81 vs 8.68±0.88,540.89±46.95 vs 181.85±32.91,37.84±4.34 vs 7.48±2.04,P<0.01)且之间互为强正相关(r=0.88,0.92,0.95)。结论:AS患者存在Th17/Treg/Th1细胞平衡失调,且与AS病情活动密切相关,可能为AS的预防和治疗提供新思路。展开更多
Objectives Regular consumption of moderate amounts of Chinese yellow wine is associated with a reduced risk of coronary disease. Matrix metalloproteinases (MMPs) that participate in extracellular matrix degradation ha...Objectives Regular consumption of moderate amounts of Chinese yellow wine is associated with a reduced risk of coronary disease. Matrix metalloproteinases (MMPs) that participate in extracellular matrix degradation have been involved in atherosclerotic plaque growth and instability. The present research aimed to study the effects of Chinese yellow wine on the production of homocysteine-induced extracellular MMP-2 in cultured rats’ vascular smooth muscle cells. Methods The effects of different homocysteine levels (0-1000 ?滋mol/l) on MMP-2 production, and the effects of Chinese yellow wine with low alcohol concentrations (12-19%) on homocysteine-induced MMP-2 in cultured rat vascular smooth muscle cells (VSMCs) were examined using gelatin zymography and western blotting. The changes of MMP-2 under various treatments for 12 h, 24 h and 48 h were further compared. Results Homocysteine (50-1000 ?滋mol/l) increased the production of MMP-2 significantly in a dose-dependent manner. Increased production of MMP-2 induced by homocysteine was reduced by extracellularly added Chinese yellow wine. Production of MMP-2 under various treatments for 48 h increased more than 12 h and 24 h. Conclusions Extracellularly added Chinese yellow wine decreased homocysteine-induced MMP-2 secretion. The inhibitory effect of yellow wine on the activation of MMP-2 might contribute to their beneficial effects on the cardiovascular system.展开更多
文摘目的:初步探讨强直性脊柱炎(AS)患者外周血中Th17细胞、调节性T细胞(Treg)、Th1细胞免疫失衡及其与疾病活动的相关性。方法:分离AS患者(61例)和健康对照组(36例)外周血单个核细胞(PBMCS),应用Rt-PCR检测Th17、Treg、Th1的特异性转录因子RORC、FoxP3、T-bet的mRNA表达水平;流式细胞术检测CD4+CD25+FoxP3+T细胞、CD4+IL-17+Th细胞及CD4+Th1细胞的比率;ELISA分析外周血IL-17、IL-23、TNF-α、IL-6等蛋白水平。结果:Foxp3 mRNA表达量AS组显著低于健康对照组(0.66±0.37 vs 1.5±0.82,P<0.01)且与AS活动度指数(ASDAS)及IL-23蛋白水平互为强负相关(r=-0.46,P<0.01,r=-0.46,P<0.05);而RORC mRNA表达水平AS组显著高于健康对照组(1.33±0.77 vs 0.83±0.52,P<0.05),与ASDAS呈显著正相关(r=0.63,P<0.05)且与IL-17、IL-23、TNF-α蛋白水平呈强正相关(r=0.52,P<0.05;r=0.57,P<0.05;r=0.52,P<0.05);T-bet mRNA表达量AS组显著低于健康对照组(0.68±0.65 vs 2.21±1.29,P<0.01)且与RORC mRNA表达量显著负相关(r=-0.37,P<0.05);CD4+IL-17+Th17细胞比率AS组明显高于健康对照组(1.987±0.58 vs 0.647±0.33,P<0.05),CD4+CD25+FoxP3+T细胞及CD4+Th1细胞的比率AS组明显低于对照组(0.94±0.38 vs2.13±0.75;3.98±0.72 vs 6.85±1.36,P<0.05);IL-17、IL-23、TNF-α表达量AS组显著高于健康对照组(37.81±5.81 vs 8.68±0.88,540.89±46.95 vs 181.85±32.91,37.84±4.34 vs 7.48±2.04,P<0.01)且之间互为强正相关(r=0.88,0.92,0.95)。结论:AS患者存在Th17/Treg/Th1细胞平衡失调,且与AS病情活动密切相关,可能为AS的预防和治疗提供新思路。
文摘Objectives Regular consumption of moderate amounts of Chinese yellow wine is associated with a reduced risk of coronary disease. Matrix metalloproteinases (MMPs) that participate in extracellular matrix degradation have been involved in atherosclerotic plaque growth and instability. The present research aimed to study the effects of Chinese yellow wine on the production of homocysteine-induced extracellular MMP-2 in cultured rats’ vascular smooth muscle cells. Methods The effects of different homocysteine levels (0-1000 ?滋mol/l) on MMP-2 production, and the effects of Chinese yellow wine with low alcohol concentrations (12-19%) on homocysteine-induced MMP-2 in cultured rat vascular smooth muscle cells (VSMCs) were examined using gelatin zymography and western blotting. The changes of MMP-2 under various treatments for 12 h, 24 h and 48 h were further compared. Results Homocysteine (50-1000 ?滋mol/l) increased the production of MMP-2 significantly in a dose-dependent manner. Increased production of MMP-2 induced by homocysteine was reduced by extracellularly added Chinese yellow wine. Production of MMP-2 under various treatments for 48 h increased more than 12 h and 24 h. Conclusions Extracellularly added Chinese yellow wine decreased homocysteine-induced MMP-2 secretion. The inhibitory effect of yellow wine on the activation of MMP-2 might contribute to their beneficial effects on the cardiovascular system.
