Biotransformation of Vinclozolin in Rat Precision-Cut Liver Slices: Comparison with <i>in Vivo</i> Metabolic Pattern
作者:Julian Bursztyka、Laurent Debrauwer、Elisabeth Perdu、Isabelle Jouanin、Jean-Philippe Jaeg、Jean-Pierre Cravedi
DOI:10.1021/jf0728045
日期:2008.6.1
Vinclozolin is a dicarboxymide fungicide that presents antiandrogenic properties through its two hydrolysis products M1 and M2, which bind to the androgen receptor. Because of the lack of data on the biotransformation of vinclozolin, its metabolism was investigated in vitro in precision-cut rat liver slices and in vivo in male rat using [ (14)C]-vinclozolin. Incubations were performed using different
Vinclozolin是一种二羧酰亚胺杀真菌剂,通过其两个与雄激素受体结合的水解产物M1和M2表现出抗雄激素特性。由于缺乏关于vinclozolin的生物转化的数据,使用[(14)C] -vinclozolin在精确切割的大鼠肝切片中体外研究了其代谢,在雄性大鼠体内研究了vinclozolin的代谢。使用不同浓度的底物进行孵育,并研究了主要代谢物形成的动力学。用[[14)C] -VZ饲喂三只雄性Wistar大鼠。收集尿液24小时,并通过放射-HPLC分析其代谢谱。代谢物鉴定是在LCQ离子阱质谱仪上进行的。在大鼠肝脏切片和体内,主要的主要代谢产物已被鉴定为3',5'-dichloro-2,3,4-三羟基-2-甲基丁酰苯胺(M5),主要以葡萄糖醛酸偶联物的形式存在。M5是通过M2的乙烯基二羟基化产生的。其他代谢物已被确定为3-(3,5-二氯苯基)-5-甲基-5-(1,2-二羟乙基)-1,3-恶唑烷-2