Zhao Huiping, Moroni Elisabetta, Yan Bin, Colombo Giorgio, Blagg Brian S J
Department of Medicinal Chemistry, 1251 Wescoe Hall Drive, Malott 4070, The University of Kansas, Lawrence, Kansas 66045-7563, USA.
ACS Med Chem Lett. 2012 Jan 1;4(1):57-62. doi: 10.1021/ml300275g.
Hsp90 is an attractive therapeutic target for the treatment of cancer. Extensive structural modifications to novobiocin, the first Hsp90 C-terminal inhibitor discovered, have produced a library of novobiocin analogues and revealed some structure-activity relationships. Based upon the most potent novobiocin analogues generated from prior studies, a three-dimensional quantitative structure-activity (3D-QSAR) model was built. In addition, a new set of novobiocin analogues containing various structural features supported by the 3D-QSAR model were synthesized and evaluated against two breast cancer cell lines. Several new inhibitors produced anti-proliferative activity at mid nano-molar concentrations, which results through Hsp90 inhibition.
热休克蛋白90(Hsp90)是癌症治疗中一个具有吸引力的治疗靶点。对新霉素(首个被发现的Hsp90 C端抑制剂)进行了广泛的结构修饰,生成了一个新霉素类似物文库,并揭示了一些构效关系。基于先前研究中产生的最有效的新霉素类似物,构建了一个三维定量构效(3D-QSAR)模型。此外,合成了一组新的含有3D-QSAR模型支持的各种结构特征的新霉素类似物,并针对两种乳腺癌细胞系进行了评估。几种新的抑制剂在中纳摩尔浓度下产生了抗增殖活性,这是通过抑制Hsp90实现的。