Synthesis of Hsp90 inhibitor dimers as potential antitumor agents

被引:13
|
作者
Muranaka, Kazuhiro [1 ]
Sano, Akiko [2 ]
Ichikawa, Satoshi [1 ]
Matsuda, Akira [1 ]
机构
[1] Hokkaido Univ, Fac Pharmaceut Sci, Sapporo, Hokkaido 0600812, Japan
[2] Taiho Pharmaceut Co Ltd, Hanno Res Ctr, Discovery & Dev Lab 1, Hannou 3578527, Japan
关键词
heat shock protein; Hsp90; PU3; anticancer; structure-based drug design;
D O I
10.1016/j.bmc.2008.04.070
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Structure-based drug design was used to systematically synthesize PU3-dimers. The cytotoxicity of PU3 dimers 6 against breast cancer cell lines was evaluated, and their potency increased as the length of the bridging linker increased. Among the compounds tested, 6e with a C-20 linker was the most potent and exhibited a 20- to 30-fold increase in activity compared with that of the parent compound 5. Western blot analyses of the cell lysates treated with 6c revealed that 6c resulted in the concentration-dependent degradation of the Hsp90 client protein Her2, which is consistent with other Hsp90 inhibitors. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:5862 / 5870
页数:9
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