Novel hybrids of brefeldin A and nitrogen mustards with improved antiproliferative selectivity: Design, synthesis and antitumor biological evaluation
作者:Tong Han、Kangtao Tian、Huaqi Pan、Yongxiang Liu、Fanxing Xu、Zhanlin Li、Takahiro Uchita、Ming Gao、Huiming Hua、Dahong Li
DOI:10.1016/j.ejmech.2018.02.088
日期:2018.4
13a−c) were obtained by introducing a variety of nitrogen mustards at 4-OH or 7-OH position to explore more efficacious and less toxic antitumor agents. The antiproliferative activities were tested against three cancer cell lines (HL-60, PC-3 and Bel-7402) and one multidrug resistant cell line Bel-7402/5-FU. Among them, compound 11a was the strongest derivative with IC50 values of 4.48, 9.37, 0.2 and 0.84 μM
通过在4-OH或7-OH位置引入各种氮芥子碱,以探索更有效和毒性更小的抗肿瘤药,获得了一系列布雷菲德菌素A的新型共轭物(11a - c,12a - c和13a - c)。测试了针对三种癌细胞系(HL-60,PC-3和Bel-7402)和一种多药耐药细胞系Bel-7402 / 5-FU的抗增殖活性。其中,化合物11a是最强的衍生物,IC 50值分别为4.48、9.37、0.2和0.84μM,比氮芥子更有效。尽管抗增殖能力比先导化合物布雷菲德菌素A(11a)弱与布雷菲德菌素A(IC 50 <0.001μM)相比,对正常人肝L-O2细胞的IC 50为9.74μM ,具有较低的毒性,在正常和恶性肝细胞之间显示出良好的选择性。机制研究证实,11a可能在亚微摩尔浓度下诱导Bel-7402细胞凋亡,使其处于G1期细胞周期并导致线粒体功能障碍。此外,11a诱导Bel-7402细胞内在的凋亡线粒体途径,这由促凋亡蛋白Bax,cyto-