作者:Feng Li、Jie Lu、Laiyou Wang、Xiaochao Ma
DOI:10.1124/dmd.110.036327
日期:2011.3
Atazanavir (ATV) is an antiretroviral drug of the protease inhibitor class. Multiple adverse effects of ATV have been reported in clinical practice, such as jaundice, nausea, abdominal pain, and headache. The exact mechanisms of ATV-related adverse effects are unknown. It is generally accepted that a predominant pathway of drug-induced toxicity is through the generation of reactive metabolites. Our current study was designed to explore reactive metabolites of ATV. We used a metabolomic approach to profile ATV metabolism in mice and human liver microsomes. We identified 5 known and 13 novel ATV metabolites. Three potential reactive metabolites were detected and characterized for the first time: one aromatic aldehyde, one α-hydroxyaldehyde, and one hydrazine. These potential reactive metabolites were primarily generated by CYP3A. Our results provide a clue for studies on ATV-related adverse effects from the aspect of metabolic activation. Further studies are suggested to illustrate the impact of these potential reactive metabolites on ATV-related adverse effects.
阿扎那韦(ATV)是一种蛋白酶抑制剂类抗逆转录病毒药物。临床实践中有报告称,ATV会产生多种不良反应,例如黄疸、恶心、腹痛和头痛。目前尚不清楚ATV相关不良反应的确切机制。人们普遍认为,药物毒性主要通过活性代谢产物的生成产生。我们目前的研究旨在探索ATV的活性代谢产物。我们使用代谢组学方法对小鼠和人类肝脏微粒体中的ATV代谢进行了分析。我们发现了5种已知和13种新的ATV代谢产物。首次检测并鉴定了三种潜在的活性代谢产物:一种芳香醛、一种α-羟基醛和一种肼。这些潜在的活性代谢产物主要由CYP3A生成。我们的研究结果为从代谢活化的角度研究ATV相关不良反应提供了线索。建议进一步研究,以阐明这些潜在的活性代谢产物对ATV相关不良反应的影响。