目的:研究五虎汤对病毒诱发幼年哮喘大鼠脾细胞悬液T-bet、GATA-3、RORγt、Foxp3 m RNA表达的影响。方法:采用RSV诱导OVA致敏大鼠哮喘模型。造模成功后,随机分成五虎汤高、中、低[4.752 g/(kg·d)、2.376 g/(kg·d)、1.188 g/(...目的:研究五虎汤对病毒诱发幼年哮喘大鼠脾细胞悬液T-bet、GATA-3、RORγt、Foxp3 m RNA表达的影响。方法:采用RSV诱导OVA致敏大鼠哮喘模型。造模成功后,随机分成五虎汤高、中、低[4.752 g/(kg·d)、2.376 g/(kg·d)、1.188 g/(kg·d)]剂量组、地塞米松组[地塞米松片,2.4 mg/(kg·d))]、模型组。干预14 d后,取脾组织,采用RT-PCR法检测脾细胞悬液中T-bet、GATA-3、RORγt、Foxp3 m RNA表达情况。结果:模型组脾组织T-bet、Foxp3m RNA表达低于空白组(P<0.05),而GATA-3、RORγt m RNA表达高于空白对照组(P<0.05)。五虎汤高、中剂量组脾组织GATA-3、RORγt m RNA表达均明显低于模型组(P<0.01或P<0.05),而T-bet、Foxp3 m RNA表达均明显高于模型组(P<0.01或P<0.05)。结论:五虎汤能调控病毒诱发幼年哮喘大鼠脾组织转录因子T-bet、GATA-3、RORγt、Foxp3 m RNA的表达,调控Thl、Th2、Thl7、Treg细胞,重建免疫平衡,抑制哮喘气道炎症形成。展开更多
目的观察慢性乙型重型肝炎患者外周血单个核细胞(PBMC)维A酸相关孤独受体γt(RORγt)和叉头状螺旋转录因子(Foxp3)m RNA表达水平,探讨其对慢性乙型重型肝炎发生发展的影响。方法选择2010年1月至2012年6月本院收治的26例慢性乙型重型肝...目的观察慢性乙型重型肝炎患者外周血单个核细胞(PBMC)维A酸相关孤独受体γt(RORγt)和叉头状螺旋转录因子(Foxp3)m RNA表达水平,探讨其对慢性乙型重型肝炎发生发展的影响。方法选择2010年1月至2012年6月本院收治的26例慢性乙型重型肝炎患者(重型组)、20例慢性乙型肝炎重度患者(重度组)及同期本院体检中心20例健康志愿者(对照组)作为研究对象。采集三组研究对象静脉血,采用逆转录-聚合酶链式反应(RT-PCR)检测PBMC RORγt和Foxp3 m RNA表达水平,采用酶联免疫吸附测定(ELISA)检测患者PBMC培养上清液中白细胞介素-17(IL-17)和转化生长因子-β(TGF-β)水平。结果与对照组比较,重度组和重型组患者PBMC RORγt和Foxp3m RNA表达水平较高(P<0.05),PBMC培养上清液中IL-17和TGF-β水平显著升高(P<0.05)。与重度组比较,重型组患者Foxp3 m RNA表达水平较低而RORγt m RNA表达水平较高(P<0.05)。PBMC培养上清液中IL-17水平明显升高而TGF-β水平显著下降(P<0.05)。RORγt m RNA表达水平与IL-17和TGF-β存在显著相关性(P<0.05),Foxp3 m RNA表达水平与IL-17和TGF-β无相关性(P>0.05)。结论 RORγt和Foxp3 m RNA表达水平变化与慢性乙型重型肝炎发生发展有关,其表达失衡可能是导致慢性乙型肝炎患者外周血辅助性T细胞17/调节性T细胞(Th17/Treg)失衡的原因之一。展开更多
The changes of CD4^＋CD25^＋ regulatory T cells （CD4^＋CD25^＋ Treg） and Foxp3 mRNA in peripheral blood mononuclear cells （PBMCs） from patients with asthma were investigated in order to elucidate the possible role...The changes of CD4^＋CD25^＋ regulatory T cells （CD4^＋CD25^＋ Treg） and Foxp3 mRNA in peripheral blood mononuclear cells （PBMCs） from patients with asthma were investigated in order to elucidate the possible roles of CD4^＋CD25^＋ Treg in the development of asthma. The peripheral blood samples were collected from 29 healthy controls （normal control group） and 78 patients with asthma which included 30 patients in exacerbation group, 25 patients in persistent group, and 23 patients in remission group. By using flow cytometry and RT-PCR, the CD4^＋CD25^＋ Treg ratio and Foxp3 mRNA in PBMCs were detected. The CD4^＋CD25^＋ Treg ratio and Foxp3 mRNA in PBMCs of exacerbation and persistent groups were lower than that of remission and normal control groups （P〈0.05）. Although the CD4^＋CD25^＋ Treg ratio and Foxp3 mRNA of remission group were also lower than that of normal control group, there was no significant difference between them （P〉0.05）. As compared with persistent group, exacerbation group had lower CD4^＋CD25^＋ Treg ratio and Foxp3 mRNA （P〈0.05）. It was indicated that the decrease of CD4^＋CD25^＋ Treg ratio and its function in PBMCs may be responsible for pathogenesis of asthma.展开更多
文摘目的:研究五虎汤对病毒诱发幼年哮喘大鼠脾细胞悬液T-bet、GATA-3、RORγt、Foxp3 m RNA表达的影响。方法:采用RSV诱导OVA致敏大鼠哮喘模型。造模成功后,随机分成五虎汤高、中、低[4.752 g/(kg·d)、2.376 g/(kg·d)、1.188 g/(kg·d)]剂量组、地塞米松组[地塞米松片,2.4 mg/(kg·d))]、模型组。干预14 d后,取脾组织,采用RT-PCR法检测脾细胞悬液中T-bet、GATA-3、RORγt、Foxp3 m RNA表达情况。结果:模型组脾组织T-bet、Foxp3m RNA表达低于空白组(P<0.05),而GATA-3、RORγt m RNA表达高于空白对照组(P<0.05)。五虎汤高、中剂量组脾组织GATA-3、RORγt m RNA表达均明显低于模型组(P<0.01或P<0.05),而T-bet、Foxp3 m RNA表达均明显高于模型组(P<0.01或P<0.05)。结论:五虎汤能调控病毒诱发幼年哮喘大鼠脾组织转录因子T-bet、GATA-3、RORγt、Foxp3 m RNA的表达,调控Thl、Th2、Thl7、Treg细胞,重建免疫平衡,抑制哮喘气道炎症形成。
文摘目的观察慢性乙型重型肝炎患者外周血单个核细胞(PBMC)维A酸相关孤独受体γt(RORγt)和叉头状螺旋转录因子(Foxp3)m RNA表达水平,探讨其对慢性乙型重型肝炎发生发展的影响。方法选择2010年1月至2012年6月本院收治的26例慢性乙型重型肝炎患者(重型组)、20例慢性乙型肝炎重度患者(重度组)及同期本院体检中心20例健康志愿者(对照组)作为研究对象。采集三组研究对象静脉血,采用逆转录-聚合酶链式反应(RT-PCR)检测PBMC RORγt和Foxp3 m RNA表达水平,采用酶联免疫吸附测定(ELISA)检测患者PBMC培养上清液中白细胞介素-17(IL-17)和转化生长因子-β(TGF-β)水平。结果与对照组比较,重度组和重型组患者PBMC RORγt和Foxp3m RNA表达水平较高(P<0.05),PBMC培养上清液中IL-17和TGF-β水平显著升高(P<0.05)。与重度组比较,重型组患者Foxp3 m RNA表达水平较低而RORγt m RNA表达水平较高(P<0.05)。PBMC培养上清液中IL-17水平明显升高而TGF-β水平显著下降(P<0.05)。RORγt m RNA表达水平与IL-17和TGF-β存在显著相关性(P<0.05),Foxp3 m RNA表达水平与IL-17和TGF-β无相关性(P>0.05)。结论 RORγt和Foxp3 m RNA表达水平变化与慢性乙型重型肝炎发生发展有关,其表达失衡可能是导致慢性乙型肝炎患者外周血辅助性T细胞17/调节性T细胞(Th17/Treg)失衡的原因之一。
基金This project was supported by a program of Science Project of Hubei Province (No.2003AA301C10).
文摘The changes of CD4^＋CD25^＋ regulatory T cells （CD4^＋CD25^＋ Treg） and Foxp3 mRNA in peripheral blood mononuclear cells （PBMCs） from patients with asthma were investigated in order to elucidate the possible roles of CD4^＋CD25^＋ Treg in the development of asthma. The peripheral blood samples were collected from 29 healthy controls （normal control group） and 78 patients with asthma which included 30 patients in exacerbation group, 25 patients in persistent group, and 23 patients in remission group. By using flow cytometry and RT-PCR, the CD4^＋CD25^＋ Treg ratio and Foxp3 mRNA in PBMCs were detected. The CD4^＋CD25^＋ Treg ratio and Foxp3 mRNA in PBMCs of exacerbation and persistent groups were lower than that of remission and normal control groups （P〈0.05）. Although the CD4^＋CD25^＋ Treg ratio and Foxp3 mRNA of remission group were also lower than that of normal control group, there was no significant difference between them （P〉0.05）. As compared with persistent group, exacerbation group had lower CD4^＋CD25^＋ Treg ratio and Foxp3 mRNA （P〈0.05）. It was indicated that the decrease of CD4^＋CD25^＋ Treg ratio and its function in PBMCs may be responsible for pathogenesis of asthma.
