多耐药肺结核患者特异性细胞免疫失衡与调节性T细胞CD4+CD25+CD127low有关

被引:16
作者
范任华 [1 ]
向延根 [1 ]
杨励 [1 ]
刘艳科 [1 ]
陈平圣 [2 ]
尹柯 [1 ]
许忆新 [1 ]
封文军 [1 ]
傅满姣 [1 ]
吴佳玲 [1 ]
王雷 [1 ]
齐志强 [1 ]
喻容 [1 ]
张婷 [1 ]
机构
[1] 长沙市中心医院
[2] 东南大学医学院
关键词
调节性T细胞CD4+CD25+CD127low; CD4+T细胞; CD8+T细胞; 多耐药肺结核;
D O I
暂无
中图分类号
R521 [肺结核];
学科分类号
摘要
目的:探讨调节性T细胞CD4+CD25+CD127low、CD4+及CD8+T细胞在多耐药结核患者中的免疫调节作用。方法:采取30例健康体检者(HD)、30例非耐药初治肺结核(S-TB)患者及30例多耐药结核病(MDR-TB)患者2 ml肝素抗凝外周静脉血,经CD3、CD4、CD8、CD25、CD127流式抗体标记后Beckman流式细胞仪计数各组CD4+CD25+CD127low、CD3+、CD4+、CD8+百分比含量,计算CD4/CD8值。结果:MDR-TB组CD4+CD25+CD127low调节性T细胞百分比含量明显高于HD组与S-TB组(P=0.000),MDR-TB组CD4+T细胞百分比含量明显低于HD组与S-TB组(P<0.05),MDR-TB组CD8+T细胞百分比含量与HD组与STB组相比明显上升(P<0.05),MDR-TB组CD4/CD8值明显低于HD组与S-TB组(P<0.001);线性回归分析发现:HD组中CD4+CD25+CD127low调节性T细胞百分比含量与CD3+、CD4+、CD8+T细胞及CD4/CD8值均无相关性(P>0.05),非耐药初治肺结核患者CD4+CD25+CD127low调节性T细胞百分比含量与CD3+、CD4+T细胞无相关性(P>0.05)、与CD8+T细胞存在正相关(r=0.419,P=0.011)、与CD4/CD8值存在负相关(r=-0.519,P=0.002),耐药结核病患者CD4+CD25+CD127low调节性T细胞百分比含量与CD3+T细胞无相关性(P>0.05)、与CD4+存在负相关(r=-0.476,P=0.004)、与CD8+T细胞存在正相关(r=0.638,P=0.000)、与CD4/CD8值存在负相关(r=-0.776,P=0.000)。结论:随着肺结核病程的发展,外周血中CD4+CD25+CD127low调节性T细胞逐渐上调,特异性细胞免疫水平下调,二者之间存在相关性,调节性T细胞可能通过抑制结核患者特异性细胞免疫应答来影响肺结核病的进程。
引用
收藏
页码:525 / 531
页数:7
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