作者:Preetpal S. Sidhu、Nicholas Nassif、Megan M. McCallum、Kelly Teske、Belaynesh Feleke、Nina Y. Yuan、Premchendar Nandhikonda、James M. Cook、Rakesh K. Singh、Daniel D. Bikle、Leggy A. Arnold
DOI:10.1021/ml400462j
日期:2014.2.13
Nuclear receptor coregulators are master regulators of transcription and selectively interact with the vitamin D receptor (VDR) to modulate cell differentiation, cell proliferation, and calcium homeostasis. Herein, we report the syntheses and evaluation of highly potent and selective VDR-coactivator inhibitors based on a recently identified 3-indolylmethanamine scaffold. The most active compound, PS121912, selectively inhibited VDR-mediated transcription among eight other nuclear receptors tested. PS121912 is also selectively disrupting the binding between VDR and the third nuclear receptor interaction domain of the coactivator SRC2. Genetic studies revealed that PS121912 behaves. like a VDR antagonist by repressing 1,25-(OH)(2)D-3 activated gene transcription. In addition, PS121912 induced apoptosis in HL-60.