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Discovery of a Synergistic Inhibitor of cAMP-Response Element Binding Protein (CREB)-Mediated Gene Transcription with 666-15

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journal contribution
posted on 10.12.2019 by Fuchun Xie, Qiuhua Fan, Bingbing X. Li, Xiangshu Xiao
CREB is a transcription factor implicated in the pathogenesis of multiple cancers. Targeting CREB is a promising strategy to develop potential cancer therapeutics. Previously, we identified 666-15 as a potent CREB inhibitor. Herein, we designed an ester prodrug of 666-15 through a long-range O,N-acyl transfer reaction for improved aqueous solubility. Unexpectedly, we discovered a small molecule 11 (653-47) that can potentiate the CREB inhibitory activity of 666-15 although 653-47 alone does not inhibit CREB.

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