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Curr Drug Targets. 2019 Aug 29. doi: 10.2174/1389450120666190829162544. [Epub ahead of print]

Recent Advances in the Discovery of Novel HSP90 Inhibitors: An Update from 2014.

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Department of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Wenhua Road No. 103, Shenyang 110016. China.
School of Life Science and Medicine, Dalian University of Technology, Dagong Road No. 2, Panjin, 124221. China.


HSP90 is a member in the family of heat shock proteins responsible for folding proteins into mature conformations and thus maintaining their biological function in cells. Since it is involved in all hallmarks of cancer, HSP90 has been considered as a promising drug target for cancer therapy. Eighteen HSP90 inhibitors have entered clinical trials, however, none has been approved by FDA. There is still a great need for novel HSP90 inhibitors with strong anticancer activity and good safety profile. In the past several years, many new molecules were identified as HSP90 inhibitors and some of them have shown promising pharmacological profiles in preclinical evaluations. In this review, HSP90 inhibitors identified from 2014 to date are summarized and their design strategies, chemical structures and biological activities are reviewed. The inhibitors are categorized by their different target domains and selectivity as N-terminal, C-terminal, and isoform selective HSP90 inhibitors.


HSP90; Anticancer; Drug design; HSP90 inhibitor; HSP90β GRP94; Lead optimization

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