目的 研究Forkhead盒(Fox)转录因子在正常和肝胆管结扎致纤维化的Balb/c小鼠肝脏中的动态表达.方法 逆转录-聚合酶链反应(RT-PCR)检测正常Balb/c小鼠肝脏中包括Foxo1、Foxo3、Foxm1、Foxl1等18个Fox转录因子的表达,并用荧光定量-聚合酶链反应(FQ-PCR)检测肝胆管结扎后Balb/c小鼠肝脏中9个炎症和增殖相关性Fox转录因子的mRNA动态变化.结果 18个Fox转录因子基因在正常Balb/c小鼠肝脏中均有表达,且以Foxo1和Foxo3表达最高;肝胆管结扎后Foxo1表达显著下调,而Foxol1和Foxm1表达显著增高.结论 肝胆管结扎致纤维化的Balb/e小鼠肝脏中,炎症和增殖相关性Fox转录因子的动态改变提示Fox转录因子可能参与肝纤维化的发生.
Objective The present study was initiated to determine the expression profiles of the Fox genes in normal Balb/c mouse liver and their dynamic expression changes during fibrogenesis induced by experimental bile duct ligation(BDL).Methods RT-PCR was employed to detect 18 Fox family members including Foxo1,Foxo3,Foxm1,and Foxl1 in normal mouse liver.After mice were bile-duct-ligated,real time fluorescence quantitative PCR(FQ-PCR)was performed to ananlyze the dynamic mRNA expression changes of 9 inflammation-or proliferation-related Fox family genes.Results All the 18 Fox genes were found to be exDressed in the normal mouse liver and bile duct ligation profoundly influenced the expression of Fox transcriptional factor family genes.The expression of Foxol was significantly reduced by BDL,while FoxoL1 and Foxom1 expression were enhanced in this roodel.Moreover,the expression of Foxo1 and Foxo3 were the highest among the Fox members.Conclusion The Fox family genes-related to inflammation and proliferation were dynamically changed during BDL-induced liver injury,it indicates these genes were involved in the pathogenesis of liver fibrosis.