多器官功能障碍综合征患者外周血CD4+CD25+调节性T细胞的检测及临床意义

目的：探讨多器官功能障碍综合征（MODS）患者外周血CD4⁺ CD25⁺调节性T细胞在治疗前后的改变及与病情的关系。方法： 采集10例MODS患者在治疗前和治疗后1周及10例健康人的外周抗凝血，应用CD4（PE-CY5）、CD25（FITC）和CD127（PE）特异性荧光抗体标记后，通过流式细胞仪对CD4⁺ CD25⁺ CD127^-调节性T细胞进行三色荧光抗体检测。结果：MODS患者治疗后外周血中CD4⁺ CD25⁺ CD127^-调节性T细胞的百分比（2.11％±0.33％）低于治疗前(7.44％±1.59％)（P<0.05），但仍高于正常对照组（0.77％±0.09％）（P<0.05）。结论：MODS患者CD4⁺ CD25⁺ CD127^-调节性T细胞的比例增加，并可能在 MODS的发生发展中起抑制作用。

Determination of CD4+ CD25+ regulatory T cells from peripheral blood in patients with multiple organ dysfunction syndrome and clinical significance

Objective To explore the change of CD4+ CD25+ regulatory T cells(Treg) from peripheral blood in patiens with multiple organ dysfunction syndrome(MODS) before and after treatment and its significance.Methods The frequencies of CD4+ CD25+ CD127-Treg were detected in 10 patients with MODS respectively before treatment and 1 week after treatment and 10 healthy donors by flow cytometry labeled with specific fluorescent antibodies,such as anti-CD4(PE-CY5),anti-CD25(FITC) and anti-CD127(PE).Results The frequency of CD4+ CD25+ CD127-Treg in patients after treatment(2.11%±0.33%) was significantly lower than before treatment(7.44%±1.59%)(P<0.05),and they were all higher than that of healthy donors(P<0.05).Conclusion The frequency of CD4+ CD25+ CD127-Treg increases in patients with MODS.That may surpress the process of MODS.