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Peery R, Kyei-Baffour K, Dong Z, Liu J, de Andrade Horn P, Dai M, Liu JY, Zhang JT. Synthesis and Identification of a Novel Lead Targeting Survivin Dimerization for Proteasome-Dependent Degradation. J Med Chem 2020; 63:7243-7251. [PMID: 32421328 DOI: 10.1021/acs.jmedchem.0c00475] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Survivin, a homodimeric member of the Inhibitor of Apoptosis Protein (IAP) family, is required for cancer cell survival and overexpressed in almost all solid tumors. However, targeting survivin has been challenging due to its "undruggable" nature. Recently, we used a novel approach to target the dimerization interface and identified inhibitors of two scaffolds that can directly bind to and inhibit survivin dimerization. One of the scaffolds, represented by the compound LQZ-7, contains an undesirable labile hydrazone linker and a potentially nonfunctional furazanopyrazine ring that we attempted to eliminate in this study. We found one compound, 7I, that is more active than the parent compound, LQZ-7, and when given orally effectively inhibits xenograft tumor growth and induces survivin loss in tumors. These findings indicate that 7I with a stable linker and a quinoxaline ring can be used as a lead for further optimization of this novel class of survivin inhibitors.
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Affiliation(s)
- Robert Peery
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
| | - Kwaku Kyei-Baffour
- Department of Chemistry and Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
| | - Zizheng Dong
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States.,Department of Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614, United States
| | - Jianguo Liu
- Department of Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614, United States
| | - Pedro de Andrade Horn
- Department of Chemistry and Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
| | - Mingji Dai
- Department of Chemistry and Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jing-Yuan Liu
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States.,Department of Medicine, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614, United States
| | - Jian-Ting Zhang
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States.,Department of Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio 43614, United States
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