Synthesis and mechanistic studies of novel spin-labeled combretastatin derivatives as potential antineoplastic agents
作者:Ying-Qian Liu、Xiao-Jing Li、Chun-Yan Zhao、Xiang Nan、Jing Tian、Susan L. Morris-Natschke、Zhi-Jun Zhang、Xiao-Ming Yang、Liu Yang、Lin-Hai Li、Xing-Wen Zhou、Kuo-Hsiung Lee
DOI:10.1016/j.bmc.2012.12.046
日期:2013.3
Two series (14a–d and 21a–h) of novel spin-labeled combretastatin derivatives were synthesized and evaluated for cytotoxicity against four tumor cell lines (K562, SGC-7901, Hela and HepG-2). Simultaneously, a representative compound 21a was selected to investigate the antitumor mechanisms of these synthetic compounds. The results indicated that some of the compounds showed significant cytotoxicity
合成了两个系列(14a – d和21a – h)的新型自旋标记的康他汀衍生物,并评估了它们对四种肿瘤细胞系(K562,SGC-7901,Hela和HepG-2)的细胞毒性。同时,选择代表性的化合物21a来研究这些合成化合物的抗肿瘤机理。结果表明,某些化合物在体外对四种肿瘤细胞系表现出显着的细胞毒性,并且比临床可用的抗癌药物依托泊苷具有更高的活性。在新合成的化合物中,21a,21b和21c对三种测试的肿瘤细胞系(HEPG-2,BGC-832和Hela)显示出最大的细胞毒性,IC 50值范围为0.15至1.05μM,3-氨基-脱氧Combretastatin A-4的值为0.014-0.403μM (3)。另外,机理分析表明,化合物21a有效地干扰微管蛋白动力学以防止癌细胞中的有丝分裂,从而导致细胞周期停滞并最终导致剂量依赖性细胞凋亡。