Pt(IV) prodrugs containing microtubule inhibitors displayed potent antitumor activity and ability to overcome cisplatin resistance
作者:Lingxue Li、Xiaochao Huang、Rizhen Huang、Shaohua Gou、Zhimei Wang、Hengshan Wang
DOI:10.1016/j.ejmech.2018.07.016
日期:2018.8
broad spectrum of anticancer activities against many solid tumors, but its severe toxicity and drug resistance have largely limited wider clinical applications. Various strategies have been tried to discover new Pt (II) drugs with at least equal activity as well as low toxicity compared to cisplatin, but the inherent problem remains unsolved. Here we report that Pt (IV) complexes comprising a CA-4
众所周知,顺铂对多种实体瘤表现出广泛的抗癌活性,但其严重的毒性和耐药性在很大程度上限制了其更广泛的临床应用。已经尝试了各种策略来发现与顺铂相比至少具有相同活性以及低毒性的新的Pt(II)药物,但是固有的问题仍未解决。在这里,我们报告合成了包含CA-4类似物的Pt(IV)复合物,作为双重靶向的Pt(IV)前药,并使用MTT分析评估了其抗增殖活性。其中,复合物19对测试的癌细胞系表现出最强的活性,同时在癌细胞和正常细胞之间显示出比顺铂更好的细胞选择性。机制研究表明,复杂19有效诱导细胞周期阻滞在G2 / M期,并显着破坏了微管的组织。此外,复合物19显着诱导细胞凋亡并降低MMP。重要的是,复合物19在体内明显抑制SK-OV-3异种移植模型中的肿瘤生长,而没有明显的毒性。