Alkylation potency and protein specificity of aromatic urea derivatives and bioisosteres as potential irreversible antagonists of the colchicine-binding site
作者:Jessica S. Fortin、Jacques Lacroix、Michel Desjardins、Alexandre Patenaude、Éric Petitclerc、René C.-Gaudreault
DOI:10.1016/j.bmc.2007.04.028
日期:2007.7
antimitotics through their covalent binding to the colchicine-binding site on intracellular beta-tubulin. The present communication aimed to evaluate the role of the electrophilic 2-chloroethyl amino moiety of CEU on cell growth inhibition and the specificity of the drugs as irreversible antagonists of the colchicine-binding site. To that end, several N-phenyl-N'-(2-ethyl)urea (EU), N-phenyl-N'-(2-chloroethyl)urea
已经显示出许多N-苯基-N'-(2-氯乙基)脲(CEU)通过与细胞内β-微管蛋白上秋水仙碱结合位点的共价结合而成为有效的抗有丝分裂剂。本交流旨在评估CEU的亲电2-氯乙基氨基部分对细胞生长的抑制作用以及作为秋水仙碱结合位点的不可逆拮抗剂的药物的特异性。为此,一些N-苯基-N'-(2-乙基)脲(EU),N-苯基-N'-(2-氯乙基)脲(CEU),N-芳基氨基-2-恶唑啉(OXA)制备了N-苯基-N'-(2-氯乙酰基)脲(CAU)衍生物,并测试了它们的抗增殖活性,对细胞周期的影响以及与β-微管蛋白的不可逆结合。欧盟衍生物缺乏抗增殖活性。CEU(2h-2i,2k,2l,OXA 3e,3h,3i,3k,3l,tBCEU和ICEU),OXA(3h,3i,3k,3l,tBOXA和IOXA)和CAU(4a-4m,tBCAU和ICAU)在三种肿瘤细胞系上的GI(50)在1.7和10microM之间。细胞毒