The changes of CD4^+CD25^+ regulatory T cells (CD4^+CD25^+ Treg) and Foxp3 mRNA in peripheral blood mononuclear cells (PBMCs) from patients with asthma were investigated in order to elucidate the possible role...The changes of CD4^+CD25^+ regulatory T cells (CD4^+CD25^+ Treg) and Foxp3 mRNA in peripheral blood mononuclear cells (PBMCs) from patients with asthma were investigated in order to elucidate the possible roles of CD4^+CD25^+ Treg in the development of asthma. The peripheral blood samples were collected from 29 healthy controls (normal control group) and 78 patients with asthma which included 30 patients in exacerbation group, 25 patients in persistent group, and 23 patients in remission group. By using flow cytometry and RT-PCR, the CD4^+CD25^+ Treg ratio and Foxp3 mRNA in PBMCs were detected. The CD4^+CD25^+ Treg ratio and Foxp3 mRNA in PBMCs of exacerbation and persistent groups were lower than that of remission and normal control groups (P〈0.05). Although the CD4^+CD25^+ Treg ratio and Foxp3 mRNA of remission group were also lower than that of normal control group, there was no significant difference between them (P〉0.05). As compared with persistent group, exacerbation group had lower CD4^+CD25^+ Treg ratio and Foxp3 mRNA (P〈0.05). It was indicated that the decrease of CD4^+CD25^+ Treg ratio and its function in PBMCs may be responsible for pathogenesis of asthma.展开更多
目的探讨宫颈癌患者外周血CD4^+CD25^+Foxp3^+调节性T淋巴细胞(regulatory T cells,Treg)、T淋巴细胞亚群以及血清IL-10、TGF-β1、TGF-β2细胞因子的表达及其临床意义。方法选取32例宫颈癌患者和24位健康体检者为研究对象,采用流式细...目的探讨宫颈癌患者外周血CD4^+CD25^+Foxp3^+调节性T淋巴细胞(regulatory T cells,Treg)、T淋巴细胞亚群以及血清IL-10、TGF-β1、TGF-β2细胞因子的表达及其临床意义。方法选取32例宫颈癌患者和24位健康体检者为研究对象,采用流式细胞术检测受试者外周血中CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比例、T淋巴细胞亚群细胞比例;采用ELISA方法检测血清中细胞因子IL-10、TGF-β1、TGF-β2的含量。结果与健康对照组相比,宫颈癌组外周血中CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比值明显增高,差异有统计学意义(P<0.01),T淋巴细胞亚群(CD3^+、CD4^+、CD8^+、CD4^+/CD8^+、CD19^+)比例差异无统计学意义(P>0.05),血清IL-10含量明显增高,TGF-β2含量明显降低,差异有统计学意义(P<0.01),TGF-β1的含量差异无统计学意义(P>0.05);宫颈癌组手术后、化疗后CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比例,血清IL-10、TGF-β1、TGF-β2含量均明显降低,差异有统计学意义(P<0.01),CD4^+CD25^+Foxp3^+Treg与TGF-β1之间存在正相关(r=0.673,P<0.01)。结论宫颈癌患者CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比值增高,且与TGF-β1含量呈正相关,可能在宫颈癌的肿瘤发生发展及肿瘤免疫逃逸中起着重要作用。展开更多
目的:探讨HBV感染者外周血CD4^+CD25^+Fox- p3^+调节性T细胞水平与HBV感染后疾病进程的相关性.方法:HBV感染者136名及健康对照40名,应用流式细胞仪胞内染色技术检测外周血CD4^+CD25^+Foxp3^+调节性T细胞表达,结合HBV感染者临床情况进行...目的:探讨HBV感染者外周血CD4^+CD25^+Fox- p3^+调节性T细胞水平与HBV感染后疾病进程的相关性.方法:HBV感染者136名及健康对照40名,应用流式细胞仪胞内染色技术检测外周血CD4^+CD25^+Foxp3^+调节性T细胞表达,结合HBV感染者临床情况进行分析.结果:HBV感染者外周血CD4^+CD25^+Foxp3^+调节性T细胞表达率较健康对照组显著增高(7.48%±1.03% vs 3.58%±0.71%,P<0.01);慢性乙肝组与慢性重型乙肝组相比,外周血CD4^+CD25^+Foxp3^+T调节细胞的表达率有明显差异(6.55%±1.26% vs 8.65%±2.58%,P<0.05);HBV病毒载量的对数值与外周血CD4^+CD25^+Foxp3^+T调节细胞的表达率之间存在正相关(r=0.332,P<0.01).结论:HBV感染者外周血CD4^+CD25^+Foxp3^+调节性T细胞水平与疾病进展明显相关.展开更多
基金This project was supported by a program of Science Project of Hubei Province (No.2003AA301C10).
文摘The changes of CD4^+CD25^+ regulatory T cells (CD4^+CD25^+ Treg) and Foxp3 mRNA in peripheral blood mononuclear cells (PBMCs) from patients with asthma were investigated in order to elucidate the possible roles of CD4^+CD25^+ Treg in the development of asthma. The peripheral blood samples were collected from 29 healthy controls (normal control group) and 78 patients with asthma which included 30 patients in exacerbation group, 25 patients in persistent group, and 23 patients in remission group. By using flow cytometry and RT-PCR, the CD4^+CD25^+ Treg ratio and Foxp3 mRNA in PBMCs were detected. The CD4^+CD25^+ Treg ratio and Foxp3 mRNA in PBMCs of exacerbation and persistent groups were lower than that of remission and normal control groups (P〈0.05). Although the CD4^+CD25^+ Treg ratio and Foxp3 mRNA of remission group were also lower than that of normal control group, there was no significant difference between them (P〉0.05). As compared with persistent group, exacerbation group had lower CD4^+CD25^+ Treg ratio and Foxp3 mRNA (P〈0.05). It was indicated that the decrease of CD4^+CD25^+ Treg ratio and its function in PBMCs may be responsible for pathogenesis of asthma.
文摘目的探讨宫颈癌患者外周血CD4^+CD25^+Foxp3^+调节性T淋巴细胞(regulatory T cells,Treg)、T淋巴细胞亚群以及血清IL-10、TGF-β1、TGF-β2细胞因子的表达及其临床意义。方法选取32例宫颈癌患者和24位健康体检者为研究对象,采用流式细胞术检测受试者外周血中CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比例、T淋巴细胞亚群细胞比例;采用ELISA方法检测血清中细胞因子IL-10、TGF-β1、TGF-β2的含量。结果与健康对照组相比,宫颈癌组外周血中CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比值明显增高,差异有统计学意义(P<0.01),T淋巴细胞亚群(CD3^+、CD4^+、CD8^+、CD4^+/CD8^+、CD19^+)比例差异无统计学意义(P>0.05),血清IL-10含量明显增高,TGF-β2含量明显降低,差异有统计学意义(P<0.01),TGF-β1的含量差异无统计学意义(P>0.05);宫颈癌组手术后、化疗后CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比例,血清IL-10、TGF-β1、TGF-β2含量均明显降低,差异有统计学意义(P<0.01),CD4^+CD25^+Foxp3^+Treg与TGF-β1之间存在正相关(r=0.673,P<0.01)。结论宫颈癌患者CD4^+CD25^+Foxp3^+Treg占CD4^+T淋巴细胞的比值增高,且与TGF-β1含量呈正相关,可能在宫颈癌的肿瘤发生发展及肿瘤免疫逃逸中起着重要作用。
文摘目的:探讨HBV感染者外周血CD4^+CD25^+Fox- p3^+调节性T细胞水平与HBV感染后疾病进程的相关性.方法:HBV感染者136名及健康对照40名,应用流式细胞仪胞内染色技术检测外周血CD4^+CD25^+Foxp3^+调节性T细胞表达,结合HBV感染者临床情况进行分析.结果:HBV感染者外周血CD4^+CD25^+Foxp3^+调节性T细胞表达率较健康对照组显著增高(7.48%±1.03% vs 3.58%±0.71%,P<0.01);慢性乙肝组与慢性重型乙肝组相比,外周血CD4^+CD25^+Foxp3^+T调节细胞的表达率有明显差异(6.55%±1.26% vs 8.65%±2.58%,P<0.05);HBV病毒载量的对数值与外周血CD4^+CD25^+Foxp3^+T调节细胞的表达率之间存在正相关(r=0.332,P<0.01).结论:HBV感染者外周血CD4^+CD25^+Foxp3^+调节性T细胞水平与疾病进展明显相关.