湖南艾滋病患者Th17和Tr细胞及IL-17在抗病毒治疗过程中的变化

目的 观察HIV感染者和AIDS患者血IL-17、CD3+CD4+IL-17+细胞(Th17细胞)和CD4+CD25+Foxp3+T细胞(Tr细胞)的平衡状态及其在1年高效抗反转录病毒治疗(HAART)中的变化.方法 选取经HAART治疗的HIV/AIDS患者33例,同时选取33例健康志愿者为对照,分别于治疗0、6、12个月采集静脉血,检测血清IL-17水平、Th17细胞及Tr细胞百分比,并对比分析其相互关系.结果 HIV/AIDS在HAART治疗前、治疗6个月、12个月及健康对照外周血的Th17细胞在CD4+T细胞中的比例分别为(1.20±0.37)%、(2.50±1.03)%、(3.70±1.56)%和(4.70±1.43)%;Tr细胞在CD4+T细胞中的比例分别为(9.16±3.33)%、(7.19±2.91)%、(5.53±1.88)%和(4.43±0.97)%;血清IL-17水平分别为(5.3±2.5) pg/ml、(7.7±2.4) pg/ml、(10.4±3.1) pg/ml和(17.7±6.6) pg/ml.Th17细胞水平与CD4+T细胞计数正相关,与病毒载量负相关;Tr细胞水平与CD4+T细胞计数负相关,与病毒载量正相关.结论 HIV感染导致IL-17、Th17细胞和Tr细胞的失平衡,而HAART治疗可能逐渐恢复二者的免疫平衡状态.提示三者可能在艾滋病发病机制中起作用,并有可能成为观察艾滋病进展和HAART治疗效果的有效指标.

Abstract：

Objective To observe the Th17, IL-17 and Tr cells equilibrium state as well as their changes of HIV infected or AIDS suffered patients in one-year HAART treatment. Methods Select 33 HIV/AIDS patients received HAART treatment while 33 healthy volunteers as controls. Flow cytometry was used to analyze Th17 and Tr cells in venous blood at the time of pre-therapy, 6th, 12th month when IL-17 levels in serum are tested by ELISA. Results The ratio of Th17 cells in CD4 cells in HIV/AIDS patients and volunteers were (1.20±0.37)%, (2.50±1.03)%, (3.70±1.56)%, (4.70±1.43)%, respectively; The ratio of Tr cells were (9.16±3.33)%, (7.19±2.91)%, (5.53±1.88)%, (4.43±0.97)%, respectively; The levels of IL-17 in serum were (5.3±2.5) pg/ml, (7.7±2.4) pg/ml, (10.4±3.1) pg/ml, (17.7±6.6) pg/ml respectively. The Th17 cells' level was positively correlative with the amount of CD4 cells, negatively correlate with the count of viral load. However, the Tr cells level is positively correlative with the count of viral load, negatively relate to the quantity of CD4 cells. Conclusion HIV could make IL-17, Th17 cells and Tr cells lost their balance, but the immune equilibrium state may gradually recover after HAART treatment. Which indicates the IL-17, Th17 cells and Treg cells may play an important role in the pathogenesis of AIDS, and they are likely to be the effective indexes to observe the progress of AIDS and the treatment effect of highly active antiretroviral therapy(HAART).

The changes of Th17, Tr cells and IL-17 in the process of antiviral treatment of Hunan AIDS patients

Objective To observe the Th17, IL-17 and Tr cells equilibrium state as well as their changes of HIV infected or AIDS suffered patients in one-year HAART treatment. Methods Select 33 HIV/AIDS patients received HAART treatment while 33 healthy volunteers as controls. Flow cytometry was used to analyze Th17 and Tr cells in venous blood at the time of pre-therapy, 6th, 12th month when IL-17 levels in serum are tested by ELISA. Results The ratio of Th17 cells in CD4 cells in HIV/AIDS patients and volunteers were (1.20±0.37)%, (2.50±1.03)%, (3.70±1.56)%, (4.70±1.43)%, respectively; The ratio of Tr cells were (9.16±3.33)%, (7.19±2.91)%, (5.53±1.88)%, (4.43±0.97)%, respectively; The levels of IL-17 in serum were (5.3±2.5) pg/ml, (7.7±2.4) pg/ml, (10.4±3.1) pg/ml, (17.7±6.6) pg/ml respectively. The Th17 cells' level was positively correlative with the amount of CD4 cells, negatively correlate with the count of viral load. However, the Tr cells level is positively correlative with the count of viral load, negatively relate to the quantity of CD4 cells. Conclusion HIV could make IL-17, Th17 cells and Tr cells lost their balance, but the immune equilibrium state may gradually recover after HAART treatment. Which indicates the IL-17, Th17 cells and Treg cells may play an important role in the pathogenesis of AIDS, and they are likely to be the effective indexes to observe the progress of AIDS and the treatment effect of highly active antiretroviral therapy(HAART).