目的:探讨Foxp3和RORγt在肝泡型包虫病患者肝脏组织中的表达及意义。方法:将手术治疗的14位肝泡型包虫病患者的肝脏组织分为3组:病灶组织组(L组)14例,病灶旁组织组(P组)14例,正常肝组织组(N组)14例。应用实时荧光定量PCR(q RT-PCR)法检测各肝脏组织中Foxp3和RORγt m RNA的表达,分析其结果。结果:Foxp3 m RNA在L组中的表达明显高于P组(P=0.005)和N组(P=0.004),P组中的表达高于N组(P=0.246)。RORγt m RNA在L组中的表达高于P组和N组(L组vs P组,P=0.187);L组vs N组,P=0.044),在P组中的表达高于N组(P=0.027)。肝脏不同组织中,RORγt与Foxp3的表达量呈正相关。结论:Th17细胞转录因子Foxp3和Treg细胞转录因子RORγt在肝脏病灶组织中m RNA的表达升高,这些变化可能与泡型包虫病发病过程中寄生虫肉芽肿的形成有关。
Background Alveolar echinococcosis （AE） is caused by the metacestode stage of Echinococcus multilocularis （E. multilocularis） and is a rare but life-threatening disease. This disease commonly is characterized by an infiltrative, tumor-like growth of the E. multilocularis metacestode in the liver of human. Liver transplantation is an effective therapy for end-stage of hepatic AE, but the characteristics of host immunity associated with E. multilocularis infection with organ transplantation are poorly defined. We hereby aimed to study the immunological status and allograft heart survival in inbred rats with E. multilocularis infection. Methods Rat models of AE were established by injecting the E. multilocularis suspension made from E. multilocularis infected tissues into the abdomen of Lewis （LEW） rats. Three months later, in the experimental group, allograft heart transplantation was performed from Brown-Norway （BN） rats to the E. multilocularis infected LEW rats. In the control group, we transplanted hearts from BN rats to healthy LEW rats. The influence of the disturbed immune system in E. multilocularis infected rats on the heart transplantation was assessed, including observation of allograft heart survival time, histopathological examination of grafts and immunohistochemical examination of infiltrating cells （CD4＋ T cells, CD8＋ T cells and eosinophile granulocytes）, measurement of interleukin （IL）-4 and interferon （IFN）-γ in the serum by enzyme-linked immunosorbent assay （ELISA） and analysis of CD4＋CD25＋ regulatory T cells in peripheral blood by fluorescence activated cell sorting （FACS） flow cytometric analysis. Results The survival time of recipients in the experimental group was prolonged compared with those in the control group. The numbers of graft infiltrating CD8＋ T cells were decreased whereas the graft infiltrating eosinophil granulocytes （CD15＋） were increased in grafts in the experimental group （P 〈0.05）. Furthermore, the proportion of CD4�
Mai Hepiretihan.Ai ErkenZHAO Jin-mingGUAN Xiao-yanWEN HaoWANG Yun-hai
