目的利用计算机辅助药物设计技术从中药天然产物库中挖掘极光激酶A(Aurora A kinase,AURKA)抑制剂。方法搭建类药性筛选、药动学预测、分子对接、分子动力学(molecular dynamics,MD)模拟于一体的药物筛选平台,从中药化合物数据库中挖掘A...目的利用计算机辅助药物设计技术从中药天然产物库中挖掘极光激酶A(Aurora A kinase,AURKA)抑制剂。方法搭建类药性筛选、药动学预测、分子对接、分子动力学(molecular dynamics,MD)模拟于一体的药物筛选平台,从中药化合物数据库中挖掘AURKA抑制剂并通过MD模拟进行验证。结果采用计算机辅助药物设计方法从Bai-TCM数据库6220种中草药的47696种中药天然化合物中筛选出5种能与AURKA结合的化合物。经MD模拟验证发现Compound X能够在AURKA抑制活性口袋中形成稳定的受体-配体二元复合物,在Compound X存在的情况下,AURKA-MYCN复合物的稳定性明显降低。结论结合多种虚拟筛选技术从中药天然产物数据库发现神经母细胞瘤治疗靶点MYCN的AURKA抑制剂Compound X。展开更多
A three-dimensional pharmacophore model was developed from a series of inhibitors of Aurora A kinase to discover new potent anti-cancer agents using the HypoGen module in the Catalyst software. The pharmacophore model...A three-dimensional pharmacophore model was developed from a series of inhibitors of Aurora A kinase to discover new potent anti-cancer agents using the HypoGen module in the Catalyst software. The pharmacophore model was developed based on the structure of 20 currently available inhibitors, which were carefully selected from the literature. The best hypothesis （Hypo 1） was defined by four features： one hydrogen-bond donor and three hy- drophobic points, with the best correlation coefficient of 0.909, the lowest rms deviation of 1.563, and the highest cost difference of 99.075. The Hypo 1 was then validated by a test set consisting of 24 compounds and by a cross-validation of 95% confidence level through randomizing the data using the CatScramble program, which suggested that a predictive pharmacophore model had been successfully obtained.展开更多
Aurora A is a cell cycle kinase linked to cancer. For the purpose of finding biologically active of novel compounds and providing new ideas for drug-design, we performed virtual screening in commercially available dat...Aurora A is a cell cycle kinase linked to cancer. For the purpose of finding biologically active of novel compounds and providing new ideas for drug-design, we performed virtual screening in commercially available databases and got pyrazoleanthrone with promising inhibitory activity against Aurora A. Optimization of solvent accessible C7 position of pyrazoleanthrone made us get thirteen target compounds. These pyrazoleanthrone derivatives were evaluated by Aurora A inhibition assays in vitro. The results show that some target compounds could inhibit Aurora A kinase. Meanwhile, these title compounds were tested in vitro against hepatocellular carcinoma（HepG2） cells by the 3＇-（4,5-dimethylthiazol-2-yl）-2,5-diphenyltetrazolium bromide（MTT） method, showing that most of them had inhibitory potency. The inhibition rate of compound 6h was about 80% against HepG2 cells, and the 1C50 value was 17.4 μmol/L, which would be considered for further study.展开更多
文摘A three-dimensional pharmacophore model was developed from a series of inhibitors of Aurora A kinase to discover new potent anti-cancer agents using the HypoGen module in the Catalyst software. The pharmacophore model was developed based on the structure of 20 currently available inhibitors, which were carefully selected from the literature. The best hypothesis （Hypo 1） was defined by four features： one hydrogen-bond donor and three hy- drophobic points, with the best correlation coefficient of 0.909, the lowest rms deviation of 1.563, and the highest cost difference of 99.075. The Hypo 1 was then validated by a test set consisting of 24 compounds and by a cross-validation of 95% confidence level through randomizing the data using the CatScramble program, which suggested that a predictive pharmacophore model had been successfully obtained.
文摘Aurora A is a cell cycle kinase linked to cancer. For the purpose of finding biologically active of novel compounds and providing new ideas for drug-design, we performed virtual screening in commercially available databases and got pyrazoleanthrone with promising inhibitory activity against Aurora A. Optimization of solvent accessible C7 position of pyrazoleanthrone made us get thirteen target compounds. These pyrazoleanthrone derivatives were evaluated by Aurora A inhibition assays in vitro. The results show that some target compounds could inhibit Aurora A kinase. Meanwhile, these title compounds were tested in vitro against hepatocellular carcinoma（HepG2） cells by the 3＇-（4,5-dimethylthiazol-2-yl）-2,5-diphenyltetrazolium bromide（MTT） method, showing that most of them had inhibitory potency. The inhibition rate of compound 6h was about 80% against HepG2 cells, and the 1C50 value was 17.4 μmol/L, which would be considered for further study.
