Biotransformation of a Novel Antimitotic Agent, I-387, by Mouse, Rat, Dog, Monkey, and Human Liver Microsomes and In Vivo Pharmacokinetics in Mice
作者:Sunjoo Ahn、Jeffrey D. Kearbey、Chien-Ming Li、Charles B. Duke、Duane D. Miller、James T. Dalton
DOI:10.1124/dmd.110.036673
日期:2011.4
min/kg, 5.3 l/kg, and 7 h, respectively. In the in vitro metabolic stability study, half-lives of I-387 were between 10 and 54 min by mouse, rat, dog, monkey, and human liver microsomes in the presence of NADPH, demonstrating interspecies variability. I-387 was most stable in rat liver microsomes and degraded quickly in monkey liver microsomes. Liquid chromatography-tandem mass spectrometry was used to
3-(1H-吲哚-2-基)苯基)(3,4,5-三甲氧基苯基)甲酮(I-387)是在各种临床前模型中均具有抗微管蛋白作用和强效抗肿瘤活性的新型吲哚化合物。在体内研究中,I-387避免了由P-糖蛋白介导的耐药性,并且比长春花生物碱显示出更少的神经毒性。我们检查了小鼠I-387的药代动力学和代谢,将其作为该化合物临床前开发的组成部分,并对抗微管蛋白剂的结构活性关系持续感兴趣。静脉注射1 mg / kg后,血浆中非房室药代动力学分析显示I-的清除率(CL),稳态时的分布体积(Vd(ss))和终末半衰期(t(1/2)) 387分别是27 ml每分钟/kg、5.3 l / kg和7小时。在体外代谢稳定性研究中,在NADPH存在下,小鼠,大鼠,狗,猴子和人肝微粒体的I-387半衰期在10到54分钟之间,证明了种间变异性。I-387在大鼠肝微粒体中最稳定,在猴子肝微粒体中迅速降解。液相色谱-串联质谱法用于