Synthesis and biological evaluation of D-ring fused 1,2,3-thiadiazole dehydroepiandrosterone derivatives as antitumor agents
作者:Hai-Wei Cui、Shihong Peng、Xiang-Zhong Gu、Huang Chen、Yuan He、Wei Gao、Fang Lv、Jin-Hua Wang、Yan Wang、Jia Xie、Ming-Yao Liu、Zhengfang Yi、Wen-Wei Qiu
DOI:10.1016/j.ejmech.2016.01.058
日期:2016.3
series of D-ring fused 1,2,3-thiadiazole DHEA derivatives were synthesized and investigated for their activity against the growth of various tumor cell lines using the sulforhodamine B (SRB) assay. It is amazing that for these compounds, T47D cell line was much more sensitive than other tumor cell lines. The most potent saturated N-heterocyclic derivatives showed similar antitumor effect with the positive
合成了一系列D环稠合的1,2,3-噻二唑DHEA衍生物,并使用磺基罗丹明B(SRB)分析了它们对各种肿瘤细胞系生长的活性。令人惊讶的是,对于这些化合物,T47D细胞系比其他肿瘤细胞系敏感得多。最有效的饱和N杂环衍生物对T47D细胞具有与阳性对照化合物ADM(阿霉素)相似的抗肿瘤作用,效力比先导化合物DHEA高44-60倍。大多数具有有效抗肿瘤活性的化合物对正常人的成纤维细胞(HAF)均显示出低毒性。特别是化合物25(CH33)的IC 50在T47D细胞上的0.058μM的抗性,其在HAF和T47D之间的选择性指数(SI)为364,比ADM高214倍(SI = 1.7)。在T47D细胞系上进行25种细胞的凋亡,集落形成和transwell迁移分析。主要机理研究表明,25引起剂量依赖性细胞凋亡诱导,并诱导T47D细胞中EphA2和EphB3磷酸化。在体内的抗肿瘤效果25在T47D荷瘤小鼠中也观察到无明显毒性。