2- and 3-Substituted 1,4-Naphthoquinone Derivatives as Subversive Substrates of Trypanothione Reductase and Lipoamide Dehydrogenase from <i>Trypanosoma</i> <i>c</i><i>ruzi</i>: Synthesis and Correlation between Redox Cycling Activities and in Vitro Cytotoxicity
作者:Laurence Salmon-Chemin、Eric Buisine、Vanessa Yardley、Sven Kohler、Marie-Ange Debreu、Valérie Landry、Christian Sergheraert、Simon L. Croft、R. Luise Krauth-Siegel、Elisabeth Davioud-Charvet
DOI:10.1021/jm001079l
日期:2001.2.1
Trypanothione reductase (TR) is both a valid and an attractive target for the design of new trypanocidal drugs. Starting from menadione, plumbagin, and juglone, three distinct series of 1,4-naphthoquinones (NQ) were synthesized as potential inhibitors of TR from Trypanosoma cruzi (TcTR). The three parent molecules were functionalized at carbons 2 and/or 3 by various polyamine chains. Optimization of
Trypanothione还原酶(TR)是设计新的锥虫病药物的既有效又有吸引力的靶标。从甲萘醌,羽扇豆蛋白和胡桃木酮开始,合成了三个不同系列的1,4-萘醌(NQ)作为克氏锥虫(TcTR)潜在的TR抑制剂。三个母体分子通过各种多胺链在碳2和/或3上官能化。利用3,3'-[聚氨基双(羰基烷基)]双(1,4-NQ)系列19-20实现了相对于人类二硫键还原酶的TcTR抑制和TcTR特异性的优化,其中确定了抑制TcTR的最佳链长。锥虫二硫化物还原。还研究了在培养物中针对锥虫的活性最高的衍生物作为TcTR和脂酰胺脱氢酶(TcLipDH)的颠覆性底物。通过随后的NAD(P)H氧化以及将反应与细胞色素c的还原反应耦合来测量活性,从而可以检测单电子转移。对于TcTR,20(4-c)被证明是有效的颠覆性底物,并且是与锥硫磷二硫化物和NADPH相比有效的非竞争性抑制剂。进行了基于TcTR和hGR的已知X射线结构