目的：探讨成人原发免疫性血小板减少症（ ITP）患者外周血中Th9、Th17和CD4＋CD25＋Foxp3＋调节性T细胞及相关细胞因子的表达水平及意义。方法采用流式细胞仪检测47例ITP患者外周血Th9、Th17和Treg细胞的表达率,采用酶联免疫吸附方法（...目的：探讨成人原发免疫性血小板减少症（ ITP）患者外周血中Th9、Th17和CD4＋CD25＋Foxp3＋调节性T细胞及相关细胞因子的表达水平及意义。方法采用流式细胞仪检测47例ITP患者外周血Th9、Th17和Treg细胞的表达率,采用酶联免疫吸附方法（ ELISA）检测外周血中细胞因子IL-9、IL-17、TGF-β等的表达水平。结果（1）ITP组患者外周血Th9、Th17细胞比例及细胞因子IL-9、IL-17浓度均明显高于健康对照组[（1.27±0.31）% vs （0.71±0.26）%, P〈0.05；（2.01±0.42）% vs （0.97±0.32）%, P〈0.05。（26.52±7.48） ng/L vs （16.16±5.27） ng/L, P〈0.05；（10.97±3.94） ng/L vs （7.14±2.73） ng/L, P〈0.05]。 CD4＋CD25＋Foxp3＋细胞比例及细胞因子TGF-β浓度明显低于对照组[（4.69±0.85）% vs （7.16±1.92）%,P〈0.05。（3.76±1.28）μg/L vs （6.41±1.83）μg/L,P〈0.05]。（2）相关性分析：患者Th9、Th17细胞比例及IL-9、IL-17浓度与血小板计数负相关（γs=-0.349,P=0.037；γs=-0.392,P=0.031；γs=-0.436,P=0.014；γs=-0.401,P=0.027）；患者Treg细胞比例及TGF-β浓度与血小板计数正相关（γs=0.411,P=0.024；γs=0.407,P=0.026）。结论成人原发免疫性血小板减少症患者 Th9、Th17与 CD4＋CD25＋Foxp3＋调节性 T 细胞比例失衡,血清IL-9、IL-17和TGF-β水平改变,这些原因可能参与成人原发免疫性血小板减少症的免疫发病过程。展开更多
Helper T cell(Th)has been identified as a critical immune cell for regulating immune response since 1980s.The type 2 helper Tcell(Th2),characterized by the production of interleukin-4(IL-4),IL-5 and IL-13,plays a crit...Helper T cell(Th)has been identified as a critical immune cell for regulating immune response since 1980s.The type 2 helper Tcell(Th2),characterized by the production of interleukin-4(IL-4),IL-5 and IL-13,plays a critical role in immune response against helminths invading cutaneous or mucosal sites.It also has a functional role in the pathophysiology of allergic diseases such as asthma and allergic diarrhea.Currently,most studies have shed light on Th2 cell function and behavior in specific diseases,such as asthma and helminthes inflammation,but not on Th2 cell itself and its differentiation.Based on different cytokines and specific behavior in recent research,Th2 cell is also regarded as new subtypes of T cell,such as IL-9 secreting T cell(Th9)and CXCR5+T follicular helper cells.Here,we will discuss the latest view of Th2 cell towards their function and the involvement of Th2 cell in diseases.展开更多
文摘目的：探讨成人原发免疫性血小板减少症（ ITP）患者外周血中Th9、Th17和CD4＋CD25＋Foxp3＋调节性T细胞及相关细胞因子的表达水平及意义。方法采用流式细胞仪检测47例ITP患者外周血Th9、Th17和Treg细胞的表达率,采用酶联免疫吸附方法（ ELISA）检测外周血中细胞因子IL-9、IL-17、TGF-β等的表达水平。结果（1）ITP组患者外周血Th9、Th17细胞比例及细胞因子IL-9、IL-17浓度均明显高于健康对照组[（1.27±0.31）% vs （0.71±0.26）%, P〈0.05；（2.01±0.42）% vs （0.97±0.32）%, P〈0.05。（26.52±7.48） ng/L vs （16.16±5.27） ng/L, P〈0.05；（10.97±3.94） ng/L vs （7.14±2.73） ng/L, P〈0.05]。 CD4＋CD25＋Foxp3＋细胞比例及细胞因子TGF-β浓度明显低于对照组[（4.69±0.85）% vs （7.16±1.92）%,P〈0.05。（3.76±1.28）μg/L vs （6.41±1.83）μg/L,P〈0.05]。（2）相关性分析：患者Th9、Th17细胞比例及IL-9、IL-17浓度与血小板计数负相关（γs=-0.349,P=0.037；γs=-0.392,P=0.031；γs=-0.436,P=0.014；γs=-0.401,P=0.027）；患者Treg细胞比例及TGF-β浓度与血小板计数正相关（γs=0.411,P=0.024；γs=0.407,P=0.026）。结论成人原发免疫性血小板减少症患者 Th9、Th17与 CD4＋CD25＋Foxp3＋调节性 T 细胞比例失衡,血清IL-9、IL-17和TGF-β水平改变,这些原因可能参与成人原发免疫性血小板减少症的免疫发病过程。
文摘Helper T cell(Th)has been identified as a critical immune cell for regulating immune response since 1980s.The type 2 helper Tcell(Th2),characterized by the production of interleukin-4(IL-4),IL-5 and IL-13,plays a critical role in immune response against helminths invading cutaneous or mucosal sites.It also has a functional role in the pathophysiology of allergic diseases such as asthma and allergic diarrhea.Currently,most studies have shed light on Th2 cell function and behavior in specific diseases,such as asthma and helminthes inflammation,but not on Th2 cell itself and its differentiation.Based on different cytokines and specific behavior in recent research,Th2 cell is also regarded as new subtypes of T cell,such as IL-9 secreting T cell(Th9)and CXCR5+T follicular helper cells.Here,we will discuss the latest view of Th2 cell towards their function and the involvement of Th2 cell in diseases.
