Novel class of 7-Oxabicyclo[2.2.1]heptene sulfonamides with long alkyl chains displaying improved estrogen receptor α degradation activity.

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ID: 12984
2019
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Ranked #80 of 406 articles by views in European journal of medicinal chemistry

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Abstract
Hormone therapy is widely used in clinic for breast cancer treatment, such as tamoxifen, but long-term use can cause drug resistance. In this regard, a strategy based on small molecule-induced protein degradation, i.e. selective estrogen receptor downregulator (SERD), might be an effective alternative to hormone therapy for breast cancer. However, most of the SERD candidates involve very limited scaffolds and are still in clinical trials, and none of them has been approved for marketing. In this study, a series of novel 7-oxabicyclo[2.2.1]heptene sulfonamide (OBHSA) derivatives with long alkyl chains were identified as novel SERDs. We found that the position and the length of alkyl side chain have significant effect on the biological activity of the SERD compounds and with the six-carbon side chain was the best. Among them, compounds 23a and 36 displayed potent inhibitory activity against MCF-7 breast cancer cell line with IC values of 0.84 μM and 0.77 μM, respectively, as well as excellent ERα degradation activity. Primary mechanism study indicated that the degradation of ERα is mediated through proteasome-mediated process. Flow cytometry analysis of apoptosis of 36 suggested that the effect of this type compounds on MCF-7 cells is associated with apoptosis. As such, these compounds have shown potential to become promising leads for the development of highly efficient SERDs for drug-resistance breast cancer therapies.
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hu2019noveleuropean Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Hu, Zhiye;Li, Yuanyuan;Xie, Baohua;Ning, Wentao;Xiao, Yuan;Huang, Yuan;Zhao, Chenxi;Huang, Jian;Dong, Chune;Zhou, Hai-Bing;
Journal European journal of medicinal chemistry
Year 2019
DOI
S0223-5234(19)30739-1
URL
Keywords Keywords not found

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