Differential modulation of hepatic cytochrome P-450 enzymes in rat and syrian hamster by 4′-trifluoromethyl-2,3,4,5-tetrachlorobiphenyl
作者:Marie-Hélène Bani、Jean-Franc??is Narbonne、Morio Fukuhara、Fusao Ushio、Larry W. Robertson
DOI:10.1002/jbt.2570090504
日期:1994.10
The effects of a single injection (40 mg/kg) of 4'-trifluoromethyl-2,3,4,5-tetrachlorobiphenyl (CF3) on hepatic cytochrome P-450 monooxygenases were assessed in rat and syrian hamster. The CF3 treatment significantly increased the total amount of cytochrome P-450 in both species. In rats, CF3 treatment caused marked increases in ethoxyresorufin O-deethylase (EROD), arylhydrocarbon hydroxylase (AHH)
在大鼠和叙利亚仓鼠中评估了单次注射(40 mg / kg)4'-三氟甲基-2,3,4,5-四氯联苯(CF3)对肝细胞色素P-450单加氧酶的影响。CF3处理显着增加了两个物种中细胞色素P-450的总量。在大鼠中,CF3处理导致乙氧基间苯二酚O-脱乙基酶(EROD),芳基烃羟化酶(AHH)和睾丸酮7α-羟化酶活性显着增加,但显着降低了苯丙胺N-脱甲基酶(BzND),红霉素N-脱甲基酶(ErND)的活性),睾丸激素6β,16α和16β-羟化酶,并形成雄烯二酮。CF3仓鼠给药强烈诱导EROD,AHH,BzND,睾丸激素15α和16α-羟基酶和雄烯二酮的产生,而ErND,睾丸激素6β和7α-羟化酶减少。给大鼠施用CF3诱导了CYP1A家族蛋白和CYP2A1,而CF3降低了CYP2B1的水平,并在较小程度上降低了CYP6 beta 2的水平。在仓鼠中,CF3处理显着诱导了CYP1A2,CYP2A1,CYP2A8和CYP2B1同工酶。