Design, synthesis, biological evaluation, and 3D-QSAR analysis of podophyllotoxin-dioxazole combination as tubulin targeting anticancer agents
作者:Zi-Zhen Wang、Wen-Xue Sun、Xue Wang、Ya-Han Zhang、Han-Yue Qiu、Jin-Liang Qi、Yan-Jun Pang、Gui-Hua Lu、Xiao-Ming Wang、Fu-Gen Yu、Yong-Hua Yang
DOI:10.1111/cbdd.12942
日期:2017.8
and high-throughput screening. To obtain new molecules for inhibiting tubulin, podophyllotoxin was adopted as the leading compound and 1,3,4-oxadiazole was brought in to the C-4 site of podophyllotoxin in this research. A series of seventeen podophyllotoxin derived esters have been achieved and then evaluated their antitumor activities against four different cancer cell lines: A549, MCF-7, HepG2 and HeLa
抗癌药的发展从来不是一个简单的线性过程。那些药物设计专家在通过创造性的药物设计和高通量筛选未能找到理想的产品后,便开始从大自然中寻找灵感。为了获得抑制微管蛋白的新分子,以鬼臼毒素为主导化合物,并将1,3,4-恶二唑引入鬼臼毒素的C-4位点。已获得一系列十七种鬼臼毒素衍生的酯,然后评估了它们对四种不同癌细胞系(A549,MCF-7,HepG2和HeLa)的抗肿瘤活性。在所有化合物中,化合物7c对MCF-7癌细胞显示出最佳的抗增殖特性,IC50 = 2.54 +/- 0.82μM。显然,MCF-7中ROS的含量以一定的剂量增加。时间和剂量依赖性的细胞周期测定表明,化合物7c可以明显阻滞G2 / M期的细胞周期,以及CyclinA2和CDK2蛋白的上调。根据进一步的研究,共聚焦显微镜实验已证明化合物7c可通过阻止微管的聚合来抑制癌症的生长。同时,化合物7c可以理想地与微管蛋白的秋水仙碱位点整合。