肺结核患者外周血树突状细胞和T辅助细胞水平的变化及其临床意义

目的探讨肺结核患者外周血树突状细胞（DC）与T辅助（Th）细胞水平的变化及其临床意义。方法利用流式细胞仪对73例初治肺结核患者、30名健康人外周血DCs亚群（DC1和DC2）与Th细胞亚群（Th1和Th2）按疾病分组进行检测。结果浸润性肺结核、结核性胸膜炎、粟粒型肺结核患者外周血中DC1、Th1含量均明显低于健康对照组,Th2含量均明显高于健康对照组（P〈0.05或〈0.01）。DC2含量在这3个病程中有下降趋势,前两者无显著差异（P〉0.05）,而粟粒型肺结核明显低于健康对照组（P〈0.05）。粟粒型肺结核与浸润性肺结核患者外周血中Th1、Th2含量有明显差异（P〈0.05）。糖尿病并发肺结核患者Th1含量明显低于肺结核组（P〈0.05）,Th2含量明显高于肺结核组（P〈0.05）。15例重度肺结核患者经抗结核化疗与微卡治疗3个月后,DC1、DC2、Th1水平较治疗前明显升高（P〈0.05）,而Th2水平较治疗前明显降低（P〈0.01）。结论浸润性肺结核、结核性胸膜炎、粟粒型肺结核患者存在着不同程度的免疫功能抑制,DC1、DC2表达水平调控着Th0向Th1、Th2分化,Th1、Th2的分化也间接地负反馈调节DC1、DC2表达,维持这种平衡对疾病的转归有重要意义。

Study of Dendritic Cells and Th Cells in the Patients with Pulmonary Tuberculosis

Objective To investigate the characteristics as well as relationship of subsets of dendritic cells(DCs)and the deviation of T-helper(Th)cells in the peripheral blood of patients with pulmonary tuberculosis.Methods Subsets of DCs and Th cells in the peripheral blood were detected by flow cytometry in 73 preliminary diagnosed patients with pulmonary tuberculosis and 30 healthy donors.Results Quantities of DC1 and Th1 cells in the peripheral blood of patients with pulmonary tuberculosis were significantly smal...