中国HIV感染长期不进展者CD4+CD25+Foxp3+调节性T细胞变化研究
首发时间:2007-12-20
摘要:目的:对中国HIV感染者长期不进展者CD4+CD25+Foxp3+调节性T细胞水平及与疾病进展相关性进行研究,探讨CD4+CD25+Foxp3+调节性T细胞在长期不进展者保护机制中发挥的作用。方法:选取74名HIV-1感染者(长期不进展者、典型进展HIV组、AIDS组)及16名健康对照,应用流式细胞仪胞内染色技术在单细胞水平检测CD4+CD25+Foxp3+调节性T细胞表达水平,分析其与CD4+T细胞、病毒载量、淋巴细胞活化、凋亡水平的相关性。结果:中国HIV感染长期不进展者CD4+CD25+Foxp3+T细胞百分率明显低于典型进展HIV、AIDS组及健康对照组(P<0.05)。HIV/AIDS患者CD4+CD25+Foxp3+T细胞百分率与CD4+T细胞显著负相关(r=-0.509,P<0.001),与病毒载量明显正相关(r=-0.414,P<0.01),与CD4、CD8+T细胞表面CD38、CD95表达水平明显正相关(P<0.05),与CD4、CD8+T细胞表面HLA-DR表达无显著相关性。结论:中国HIV感染长期不进展者CD4+CD25+Foxp3+调节性T细胞百分率明显低于典型进展者,提示调节性T细胞与长期不进展者保护机制相关。
关键词: HIV-1 调节性T细胞 长期不进展者 Foxp3 活化 凋亡
For information in English, please click here
Correlation between CD4+CD25+Foxp3+ regulatory T cells and disease progression in HIV infected long term nonprogressors of China
Abstract:To detect the frequency, function associated marker of CD4+CD25+Foxp3+ regulatory T cells of HIV infected long term non progressors in China, and to study the protective role of regulatory T cell in long term non progressors. Methods: 74 untreated HIV-1 infected patients and 16 normal controls were enrolled and the frequency of CD4+CD25+Foxp3+ regulatory T cells were detected by flow-cytometry. To study the correlation between CD4+CD25+Foxp3+ regulatory T cells and disease progression, the absolute CD4+T cells, viral load, apoptosis and activation of T cells were also examined. Results: We found that the frequency of CD4+CD25+Foxp3+ regulatory T cells in LTNP group was significantly lower than that in HIV and AIDS group (P<0.05). The frequency of CD4+CD25+Foxp3+Treg cells was inversely related to CD4+T cells and closely related to viral load and CD38, CD95 expression on CD4, CD8+T cells (P<0.05). Conclusions: The frequency of CD4+CD25+Foxp3+ regulatory T cells of HIV infected long term non progressors were significantly lower than typical progressors, which indicate that alternation of regulatory T cells may play a protective role in long term non progressors.
Keywords: HIV-1 Regulatory T cell Long term non progressor Foxp3 Activation Apoptosis
论文图表:
引用
No.1721317737211981****
同行评议
共计0人参与
勘误表
中国HIV感染长期不进展者CD4+CD25+Foxp3+调节性T细胞变化研究
评论
全部评论0/1000