摘要
目的探讨法尼酯X受体(farnesoid X receptor,FXR)对脂肪酸合酶(fatty acid synthetase,FAS)表达的影响。方法用FXR激动剂CDCA作用人肝癌细胞株(HepG2),应用RT-PCR和Western blotting分别从mRNA水平和蛋白质水平检测FAS的表达情况。结果用不同浓度的CDCA(25、50、75μmol/L)分别作用于HepG2细胞,6、12、24、48h后,FASmRNA和蛋白质水平呈时间和剂量依赖性下调。结论FXR激动剂可抑制脂肪酸合酶的表达。
Objective To investigate the effect of the farnesoid X receptor (FXR) on fatty acid synthetase expression. Methods Human hepatoblastoma HepG2 cells were treated with a FXR's agonist, chenodeoxycholic acid (CDCA) at 75 ttmol/L for 6, 12, 24 and 48 h respectively, or at 25, 50 and 75 μmol/L for48 h. Expressions of FAS mRNA and protein were determined by RT-PCR and Western blot analysis respectively. Results RT-PCR and Western blot analysis indicated that the mRNA and protein were expressed in a time and dose-dependent manner in the HepG2 cells treatmented by CDCA. Conclusion FXR agonist decreases the expression of fatty acid synthetase.
出处
《第三军医大学学报》
CAS
CSCD
北大核心
2007年第22期2142-2144,共3页
Journal of Third Military Medical University
基金
第三军医大学留学回国人员启动基金(2006)
重庆市自然科学基金计划项目(2007BB5050)~~