Design, synthesis and anti-cancer activity evaluation of podophyllotoxin-norcantharidin hybrid drugs
作者:Hong-Wei Han、Han-Yue Qiu、Cui Hu、Wen-Xue Sun、Rong-Wu Yang、Jin-Liang Qi、Xiao-Ming Wang、Gui-Hua Lu、Yong-Hua Yang
DOI:10.1016/j.bmcl.2016.05.063
日期:2016.7
In this study, we designed and synthesized eighteen podophyllotoxin-norcantharidin hybrid drugs which could exhibit more potent anti-cancer activity than the parent drugs. Through the anti-proliferation assay, the most potent anti-cancer agent was screened out, namely Q9 (IC50 = 0.88 ± 0.18 μM against MCF-7 cell line), and it showed lower cytotoxicity against non-cancer cells, human embryonic kidney
在这项研究中,我们设计和合成了18种鬼臼毒素-降冰素原杂合药物,它们比母体药物具有更强的抗癌活性。通过抗增殖试验,筛选出最有效的抗癌药,即Q9( 针对MCF-7细胞系的IC 50 = 0.88±0.18μM),并且对非癌细胞,人胚肾的细胞毒性较低。细胞(293T)(IC 50 = 54.38±3.78μM)。另外,基于流式细胞仪分析结果,它可以引起显着的细胞周期停滞在G2 / M期,并比鬼臼毒素或降冰片抑制素本身更明显地诱导MCF-7细胞凋亡。此外,细胞周期相关蛋白CDK1的表达上调,而有丝分裂起始所需的蛋白Cyclin B1的表达下调。此外,根据共聚焦显微镜观察结果,发现Q9是有效的微管蛋白聚合抑制剂,其作用与秋水仙碱相当。为了进一步研究上述机制,我们进行了蛋白质印迹实验,从而发现PARP裂解的增加。与这些新发现一致,分子对接观察表明化合物Q9可作为潜在的抗癌药开发。