T细胞功能紊乱,尤其是辅助性CD4+T细胞异常活化,在类风湿关节炎(rheumatoid ar thritis,RA)的发生发展中处于中心环节,CD4+T细胞亚群Th1/Th2细胞及Th17/Treg细胞之间的失衡可能是RA发病的最直接和最重要的因素。Th细胞相关细胞因子通过...T细胞功能紊乱,尤其是辅助性CD4+T细胞异常活化,在类风湿关节炎(rheumatoid ar thritis,RA)的发生发展中处于中心环节,CD4+T细胞亚群Th1/Th2细胞及Th17/Treg细胞之间的失衡可能是RA发病的最直接和最重要的因素。Th细胞相关细胞因子通过作用于多种细胞并相互调节形成一个复杂的网络,Th1和Th17细胞通过产生炎性细胞因子IFN、TNF-α、IL-2、IL-1、IL-17等造成了滑膜炎的发生,Th2和Treg细胞通过直接接触或分泌细胞因子IL-4、IL-10等参与抗炎效应。本文旨在阐述Th细胞及相关细胞因子的促炎和抗炎平衡在RA发生发展中所起的关键作用。展开更多
Objective： To measure the proportions of blood T cel subsets, Th1, Th2, Th17, Th22, and Treg cel s, and other parameters in patients with chronic immune thrombocytopenia（CITP） before and after treatment with Yiqi T...Objective： To measure the proportions of blood T cel subsets, Th1, Th2, Th17, Th22, and Treg cel s, and other parameters in patients with chronic immune thrombocytopenia（CITP） before and after treatment with Yiqi Tongyang Decoction（益气通阳方, YTD） to explore T cel status of patients with CITP, and to define the mechanism of action of YTD. Methods： The changes in peripheral blood T lymphocyte subsets, and those of Th1, Th2, Th17, Th22, and Treg cel s in 30 patients with CITP（22 females and 8 males） were analyzed using multiparametric flow cytometry before and after treatment with YTD for 6 months, and 26 healthy volunteers（14 males and 12 females） acted as a control. T-box expressed in T-cel s（T-bet） and GATA binding protein 3（GATA-3） m RNA levels in patients and controls were analyzed using real-time reverse transcription-polymerase chain reaction. Results： The proportions of Th1, Th17, Th22, Th1/Th2, and Th17/Treg cells increased in the peripheral blood of patients with CITP compared to those in controls before YTD therapy（P〈0.05）. Th1 cel numbers and the Th1/Th2 ratio fel in the treated patients with CITP to approximate the values of the control group（P〉0.05）. Th17 cel numbers and the Th17/Treg ratio also decreased in the treatment group（P〈0.05）, but not to the levels of the controls. The number of Treg cel s in the peripheral blood of patients with CITP before treatment was lower than that in the control group（P〈0.05）, but increased after YTD treatment（P〈0.05）, but not to the level of controls. T-bet and GATA-3 m RNA levels in peripheral blood were initially higher in patients before treatment than controls（P〈0.05）, but decreased after YTD therapy（P〈0.05）. Conclusions： Imbalances in T lymphocyte levels, particularly those of Th1/Th2 and Th17/Treg cel s, play important roles in the pathogenesis of CITP. YTD efficiently regulated the dynamics of Th1/Th2 and Th17/Treg equilibria.展开更多
目的探讨支气管哮喘患者外周程序性死亡受体1(programmend cell death protein l,PD-1)、干扰素-γ(intorferon-γ,IFN-γ)、白细胞介素-4(interleukin-4,IL-4)与辅助性T细胞(helper-T cell,Th细胞)及T细胞亚群水平表达的临床意义。方...目的探讨支气管哮喘患者外周程序性死亡受体1(programmend cell death protein l,PD-1)、干扰素-γ(intorferon-γ,IFN-γ)、白细胞介素-4(interleukin-4,IL-4)与辅助性T细胞(helper-T cell,Th细胞)及T细胞亚群水平表达的临床意义。方法选取2019年9月~2020年9月就诊于西安国际医学中心医院的80例哮喘患者为研究组,另以同期在该院体检的80例健康成人为对照组,采用肺功能仪检测两组研究对象的肺功能指标;ELISA法检测两组研究对象血清PD-1,IFN-γ和IL-4水平;单克隆抗体间接免疫荧光法检测两组研究对象外周血Th细胞和T淋巴细胞亚群占比,比较两组以上指标差异并分析其临床意义。结果与对照组相比,研究组肺功能指标FEV1和FEV1/预计值百分比(fevl%pred)、血清PD-1和IFN-γ水平、外周血Th1细胞占比、Th1/Th2比值、CD8+水平以及CD4^(+)/CD8+比值均显著降低,血清IL-4表达水平和外周血Th2细胞及CD4^(+)水平占比均显著升高,差异均有统计学意义(t=3.221~19.847,均P<0.01),而两组CD3+水平无显著差异(t=1.132,P=0.259)。结论支气管哮喘发作伴随着患者血清PD-1水平降低以及IL-4水平增高,从而抑制了Th1细胞产生IFN-γ,并使得Th1/Th2和CD4^(+)/CD8+平衡状态破坏,各细胞及细胞因子相互制约、相互调节,构成复杂的调节网络,对哮喘的诊断治疗有重要意义。展开更多
文摘T细胞功能紊乱,尤其是辅助性CD4+T细胞异常活化,在类风湿关节炎(rheumatoid ar thritis,RA)的发生发展中处于中心环节,CD4+T细胞亚群Th1/Th2细胞及Th17/Treg细胞之间的失衡可能是RA发病的最直接和最重要的因素。Th细胞相关细胞因子通过作用于多种细胞并相互调节形成一个复杂的网络,Th1和Th17细胞通过产生炎性细胞因子IFN、TNF-α、IL-2、IL-1、IL-17等造成了滑膜炎的发生,Th2和Treg细胞通过直接接触或分泌细胞因子IL-4、IL-10等参与抗炎效应。本文旨在阐述Th细胞及相关细胞因子的促炎和抗炎平衡在RA发生发展中所起的关键作用。
基金Supported by the National Natural Science Foundation of China(No.81072928)
文摘Objective： To measure the proportions of blood T cel subsets, Th1, Th2, Th17, Th22, and Treg cel s, and other parameters in patients with chronic immune thrombocytopenia（CITP） before and after treatment with Yiqi Tongyang Decoction（益气通阳方, YTD） to explore T cel status of patients with CITP, and to define the mechanism of action of YTD. Methods： The changes in peripheral blood T lymphocyte subsets, and those of Th1, Th2, Th17, Th22, and Treg cel s in 30 patients with CITP（22 females and 8 males） were analyzed using multiparametric flow cytometry before and after treatment with YTD for 6 months, and 26 healthy volunteers（14 males and 12 females） acted as a control. T-box expressed in T-cel s（T-bet） and GATA binding protein 3（GATA-3） m RNA levels in patients and controls were analyzed using real-time reverse transcription-polymerase chain reaction. Results： The proportions of Th1, Th17, Th22, Th1/Th2, and Th17/Treg cells increased in the peripheral blood of patients with CITP compared to those in controls before YTD therapy（P〈0.05）. Th1 cel numbers and the Th1/Th2 ratio fel in the treated patients with CITP to approximate the values of the control group（P〉0.05）. Th17 cel numbers and the Th17/Treg ratio also decreased in the treatment group（P〈0.05）, but not to the levels of the controls. The number of Treg cel s in the peripheral blood of patients with CITP before treatment was lower than that in the control group（P〈0.05）, but increased after YTD treatment（P〈0.05）, but not to the level of controls. T-bet and GATA-3 m RNA levels in peripheral blood were initially higher in patients before treatment than controls（P〈0.05）, but decreased after YTD therapy（P〈0.05）. Conclusions： Imbalances in T lymphocyte levels, particularly those of Th1/Th2 and Th17/Treg cel s, play important roles in the pathogenesis of CITP. YTD efficiently regulated the dynamics of Th1/Th2 and Th17/Treg equilibria.
文摘目的探讨支气管哮喘患者外周程序性死亡受体1(programmend cell death protein l,PD-1)、干扰素-γ(intorferon-γ,IFN-γ)、白细胞介素-4(interleukin-4,IL-4)与辅助性T细胞(helper-T cell,Th细胞)及T细胞亚群水平表达的临床意义。方法选取2019年9月~2020年9月就诊于西安国际医学中心医院的80例哮喘患者为研究组,另以同期在该院体检的80例健康成人为对照组,采用肺功能仪检测两组研究对象的肺功能指标;ELISA法检测两组研究对象血清PD-1,IFN-γ和IL-4水平;单克隆抗体间接免疫荧光法检测两组研究对象外周血Th细胞和T淋巴细胞亚群占比,比较两组以上指标差异并分析其临床意义。结果与对照组相比,研究组肺功能指标FEV1和FEV1/预计值百分比(fevl%pred)、血清PD-1和IFN-γ水平、外周血Th1细胞占比、Th1/Th2比值、CD8+水平以及CD4^(+)/CD8+比值均显著降低,血清IL-4表达水平和外周血Th2细胞及CD4^(+)水平占比均显著升高,差异均有统计学意义(t=3.221~19.847,均P<0.01),而两组CD3+水平无显著差异(t=1.132,P=0.259)。结论支气管哮喘发作伴随着患者血清PD-1水平降低以及IL-4水平增高,从而抑制了Th1细胞产生IFN-γ,并使得Th1/Th2和CD4^(+)/CD8+平衡状态破坏,各细胞及细胞因子相互制约、相互调节,构成复杂的调节网络,对哮喘的诊断治疗有重要意义。
