Cytochrome P450-Mediated Metabolism of Haloperidol and Reduced Haloperidol to Pyridinium Metabolites
作者:Kathryn M. Avent、J. J. DeVoss、Elizabeth M. J. Gillam
DOI:10.1021/tx0600090
日期:2006.7.1
Haloperidol (HP) has been reported to undergo cytochrome P450 (P450)-mediated metabolism to potentially neurotoxic pyridinium metabolites; however, the chemical pathways and specific enzymes involved in these reactions remain to be identified. The aims of the current study were to (i) fully identify the cytochrome P450 enzymes capable of metabolizing HP to the pyridinium metabolite, 4-(4-chlorophe
氟哌啶醇(HP)据报道会经历细胞色素P450(P450)介导的代谢,转化为可能具有神经毒性的吡啶鎓代谢物。然而,涉及这些反应的化学途径和特定酶仍有待确定。本研究的目的是(i)完全鉴定能够将HP代谢为吡啶鎓代谢物4-(4-氯苯基)-1-(4-氟苯基)-4-氧丁基吡啶鎓(HPP(+))的细胞色素P450酶),然后将HP(RHP)还原为4-(4-氯苯基)-1-(4-氟苯基)-4-羟基丁基吡啶鎓(RHPP(+));(ii)确定4-(4-氯苯基)-1-(4-氟苯基)-4-氧丁基-1,2,3,6-四氢吡啶(HPTP)和4-(4-氯苯基)-1-( 4-氟苯基)-4-羟基丁基-1,2,3,6-四氢吡啶(RHPTP)是这些途径中的代谢中间体。使用人肝微粒体制剂和重组人细胞色素P450酶(P450 1A1、1A2、1B1、2A6、2B6、2C9、2C19 2D6、2E1、3A4、3A5和3A7)与人NADPH