目的探讨下肢动脉硬化闭塞(arteriosclerosis obliteran,ASO)动物模型外周血辅助性T细胞17(helper T cell type 17,Th17)/调节性T细胞(regulatory T cell,Treg)比值平衡及M1巨噬细胞和M2巨噬细胞极化比率。方法20只SD大鼠随机分为ASO组...目的探讨下肢动脉硬化闭塞(arteriosclerosis obliteran,ASO)动物模型外周血辅助性T细胞17(helper T cell type 17,Th17)/调节性T细胞(regulatory T cell,Treg)比值平衡及M1巨噬细胞和M2巨噬细胞极化比率。方法20只SD大鼠随机分为ASO组和对照组,每组10只,其中ASO组构建ASO模型并在90d取材获得血液样本,检测血清中促炎因子白细胞介素(interleukin,IL)-6、IL-17和抑炎因子IL-10的分泌情况、Th17和Treg、M1和M2型巨噬细胞的含量及比率,以及淋巴细胞中叉头状/翼状螺旋转录因子3(forkhead or winged helix transcription 3,Foxp3)、IL-6、IL-10、IL-17的表达情况。结果ASO组大鼠血清IL-6、IL-17显著升高,而IL-10显著降低,差异有统计学意义(P<0.05)。ASO组Th17/Treg比例和M1/M2巨噬细胞比例均显著升高,差异有统计学意义(P<0.05)。在大鼠淋巴细胞中,ASO组的Foxp3和IL-10的mRNA及蛋白含量显著低于对照组,而IL-6和IL-17的mRNA及蛋白水平显著高于对照组,差异有统计学意义(P<0.05)。结论Th17/Treg平衡、M1/M2比例以及血液及淋巴细胞炎症因子表达可能与下肢ASO的炎症反应趋势变化有关。展开更多
The transcription factor nuclear factor κB(NF-κB) plays major roles in inflammatory diseases through regulation of inflammation and cell viability.Multiple sclerosis(MS) is a chronic inflammatory demyelinating a...The transcription factor nuclear factor κB(NF-κB) plays major roles in inflammatory diseases through regulation of inflammation and cell viability.Multiple sclerosis(MS) is a chronic inflammatory demyelinating and neurodegenerative disease of the central nervous system(CNS).It has been shown that NF-κB is activated in multiple cell types in the CNS of MS patients,including T cells,microglia/macrophages,astrocytes,oligodendrocytes,and neurons.Interestingly,data from animal model studies,particularly studies of experimental autoimmune encephalomyelitis,have suggested that NF-κB activation in these individual cell types has distinct effects on the development of MS.In this review,we will cover the current literature on NF-κB and the evidence for its role in the development of MS and its animal model experimental autoimmune encephalomyelitis.展开更多
The prognosis of T-cell lymphoma (TCL) has been shown to be associated with the clinical characteristics of patients. However, there is little knowledge of whether genetic variations also affect the prognosis of TCL. ...The prognosis of T-cell lymphoma (TCL) has been shown to be associated with the clinical characteristics of patients. However, there is little knowledge of whether genetic variations also affect the prognosis of TCL. This study investigated the associations between single nucleotide polymorphisms(SNPs) in tumor necrosis factor receptor superfamily(TNFRSF) genes and the survival of patients with TCL. A total of 38 tag SNPs in 18 TNFRSF genes were genotyped using Sequenom platform in 150 patients with TCL. Kaplan-Meier survival estimates were plotted and significance was assessed using log-rank tests. Cox proportional hazard models were used to analyze each of these 38 SNPs with adjustment for covariates that might influence patient survival, including sex and international prognostic Index score. Hazard ratios (HRs) and their 95% confidence intervals(CIs) were calculated. Among the 38 SNPs tested, 3 were significantly associated with the survival of patients with TCL. These SNPs were located at LTβR (rs3759333C>T) and TNFRSF17(rs2017662C>T and rs2071336C>T). The 5-year survival rates were significantly different among patients carrying different genotypes and the HRs for death between the different genotypes ranged from 0.45 to 2.46. These findings suggest that the SNPs in TNFRSF genes might be important determinants for the survival of TCL patients.展开更多
文摘目的探讨下肢动脉硬化闭塞(arteriosclerosis obliteran,ASO)动物模型外周血辅助性T细胞17(helper T cell type 17,Th17)/调节性T细胞(regulatory T cell,Treg)比值平衡及M1巨噬细胞和M2巨噬细胞极化比率。方法20只SD大鼠随机分为ASO组和对照组,每组10只,其中ASO组构建ASO模型并在90d取材获得血液样本,检测血清中促炎因子白细胞介素(interleukin,IL)-6、IL-17和抑炎因子IL-10的分泌情况、Th17和Treg、M1和M2型巨噬细胞的含量及比率,以及淋巴细胞中叉头状/翼状螺旋转录因子3(forkhead or winged helix transcription 3,Foxp3)、IL-6、IL-10、IL-17的表达情况。结果ASO组大鼠血清IL-6、IL-17显著升高,而IL-10显著降低,差异有统计学意义(P<0.05)。ASO组Th17/Treg比例和M1/M2巨噬细胞比例均显著升高,差异有统计学意义(P<0.05)。在大鼠淋巴细胞中,ASO组的Foxp3和IL-10的mRNA及蛋白含量显著低于对照组,而IL-6和IL-17的mRNA及蛋白水平显著高于对照组,差异有统计学意义(P<0.05)。结论Th17/Treg平衡、M1/M2比例以及血液及淋巴细胞炎症因子表达可能与下肢ASO的炎症反应趋势变化有关。
基金supported by grants from the National Institutes of Health(NS094151 and NS105689)the National Multiple Sclerosis Society(RG5239-A-3)(to WL)
文摘The transcription factor nuclear factor κB(NF-κB) plays major roles in inflammatory diseases through regulation of inflammation and cell viability.Multiple sclerosis(MS) is a chronic inflammatory demyelinating and neurodegenerative disease of the central nervous system(CNS).It has been shown that NF-κB is activated in multiple cell types in the CNS of MS patients,including T cells,microglia/macrophages,astrocytes,oligodendrocytes,and neurons.Interestingly,data from animal model studies,particularly studies of experimental autoimmune encephalomyelitis,have suggested that NF-κB activation in these individual cell types has distinct effects on the development of MS.In this review,we will cover the current literature on NF-κB and the evidence for its role in the development of MS and its animal model experimental autoimmune encephalomyelitis.
文摘The prognosis of T-cell lymphoma (TCL) has been shown to be associated with the clinical characteristics of patients. However, there is little knowledge of whether genetic variations also affect the prognosis of TCL. This study investigated the associations between single nucleotide polymorphisms(SNPs) in tumor necrosis factor receptor superfamily(TNFRSF) genes and the survival of patients with TCL. A total of 38 tag SNPs in 18 TNFRSF genes were genotyped using Sequenom platform in 150 patients with TCL. Kaplan-Meier survival estimates were plotted and significance was assessed using log-rank tests. Cox proportional hazard models were used to analyze each of these 38 SNPs with adjustment for covariates that might influence patient survival, including sex and international prognostic Index score. Hazard ratios (HRs) and their 95% confidence intervals(CIs) were calculated. Among the 38 SNPs tested, 3 were significantly associated with the survival of patients with TCL. These SNPs were located at LTβR (rs3759333C>T) and TNFRSF17(rs2017662C>T and rs2071336C>T). The 5-year survival rates were significantly different among patients carrying different genotypes and the HRs for death between the different genotypes ranged from 0.45 to 2.46. These findings suggest that the SNPs in TNFRSF genes might be important determinants for the survival of TCL patients.