Synthesis and in vitro cytotoxicity evaluation of β-carboline-combretastatin carboxamides as apoptosis inducing agents: DNA intercalation and topoisomerase-II inhibition
作者:Chetna Jadala、Manda Sathish、T. Srinivasa Reddy、Velma Ganga Reddy、Ramya Tokala、Suresh K. Bhargava、Nagula Shankaraiah、Narayana Nagesh、Ahmed Kamal
DOI:10.1016/j.bmc.2019.06.007
日期:2019.8
To explore a new set of cytotoxic agents, β-carboline-combretastatin carboxamide conjugates were designed, synthesized and evaluated for their in vitro cytotoxicity potential, DNA binding affinity and Topoisomerase-II (topo-II) inhibition activity. Among the designed hybrids, 10v and 10af have shown significant cytotoxic effect against A549 (lung cancer) cell line having IC50 value 1.01 µM and 1.17 µM
为了探索一组新的细胞毒性剂,设计,合成和评估了β-咔啉-combretastatin羧酰胺结合物的体外细胞毒性潜力,DNA结合亲和力和拓扑异构酶-II(topo-II)抑制活性。在设计的杂种中,10v和10af对IC50值分别为1.01 µM和1.17 µM的A549(肺癌)细胞系显示出显着的细胞毒性作用。此外,据推测,用化合物10v处理可诱导A549细胞之间的凋亡,这由Hoechst染色,DCFDA,膜联蛋白V-FITC和形态学测定法支持。流式细胞仪分析显示杂种10v以剂量依赖的方式将A549细胞阻滞在细胞周期的G2 / M期。在活性杂种中,测试了最有效的杂种10v的DNA topo-II抑制活性。而且,为了进一步支持生物活性并推断配体与DNA之间的相互作用方式,进行了光谱学和分子对接研究。对接和光谱学结果表明,配体表现出与DNA结合的插入模式,可以有效地与DNA结合并形成topo-II