Design, Synthesis, and Bioactivity Evaluation of Dual-Target Inhibitors of Tubulin and Src Kinase Guided by Crystal Structure
作者:Lun Wang、Yunhua Zheng、Dan Li、Jianhong Yang、Lei Lei、Wei Yan、Wei Zheng、Minghai Tang、Mingsong Shi、Ruijia Zhang、Xiaoying Cai、Hengfan Ni、Xu Ma、Na Li、Feng Hong、Haoyu Ye、Lijuan Chen
DOI:10.1021/acs.jmedchem.0c01961
日期:2021.6.24
enhancing the interaction of KX01 with α-tubulin could increase tubulin inhibition and synthesized a series of KX01 derivatives directed by docking studies. Among these derivatives, 8a exhibited more than 10-fold antiproliferation activity in several tumor cells than KX01 and significantly improved in vivo antitumor effects. The X-ray crystal structure suggested that 8a both bound to the colchicine site and
Klisyri (KX01) 是一种微管蛋白/Src 蛋白双重抑制剂,已在多种肿瘤模型中显示出潜在的治疗效果。然而,一项针对骨转移性去势抵抗性前列腺癌患者的 II 期临床试验因缺乏疗效而停止。我们之前报道过KX01与β-微管蛋白的秋水仙碱位点结合,其吗啉基团靠近α-微管蛋白的表面。因此,我们假设增强KX01与α-微管蛋白的相互作用可以增加微管蛋白的抑制作用,并通过对接研究合成了一系列KX01衍生物。在这些衍生物中, 8a在多种肿瘤细胞中表现出比KX01高10倍以上的抗增殖活性,并显着提高了体内抗肿瘤效果。 X射线晶体结构表明8a既与秋水仙碱位点结合,又延伸至α-微管蛋白内部,形成有效的相互作用,呈现出一种新颖的结合模式。这项研究确定了一种潜在的癌症治疗临床候选药物。