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- Title
A Structure—Activity Relationship Study of Bis-Benzamides as Inhibitors of Androgen Receptor—Coactivator Interaction.
- Authors
Lee, Tae-Kyung; Ravindranathan, Preethi; Sonavane, Rajni; Raj, Ganesh V.; Ahn, Jung-Mo; Mosberg, Henry; Sawyer, Tomi; Haskell-Luevano, Carrie
- Abstract
The interaction between androgen receptor (AR) and coactivator proteins plays a critical role in AR-mediated prostate cancer (PCa) cell growth, thus its inhibition is emerging as a promising strategy for PCa treatment. To develop potent inhibitors of the AR–coactivator interaction, we have designed and synthesized a series of bis-benzamides by modifying functional groups at the N/C-terminus and side chains. A structure–activity relationship study showed that the nitro group at the N-terminus of the bis-benzamide is essential for its biological activity while the C-terminus can have either a methyl ester or a primary carboxamide. Surveying the side chains with various alkyl groups led to the identification of a potent compound 14d that exhibited antiproliferative activity (IC50 value of 16 nM) on PCa cells. In addition, biochemical studies showed that 14d exerts its anticancer activity by inhibiting the AR–PELP1 interaction and AR transactivation.
- Subjects
ANDROGEN receptors; STRUCTURE-activity relationships; ALKYL group; FUNCTIONAL groups; METHYL formate; ADRENERGIC receptors
- Publication
Molecules, 2019, Vol 24, Issue 15, p2783
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules24152783