ARV-771 是基于 PROTAC 技术的有效 BET 降解剂，对 BRD2(1)、BRD2(2)、BRD3(1)、BRD3(2)、BRD4 (1) 和 BRD4(2)的 Kd 分别为 34、4.7、8.3、7.6、9.6 和 7.6 nM。

ARV-771 is a potent BET degrader based on PROTAC technology with Kds of 34, 4.7, 8.3, 7.6, 9.6, and 7.6 nM for BRD2(1), BRD2(2), BRD3(1), BRD3(2), BRD4(1), and BRD4(2), respectively[1].

ARV-771, a small-molecule pan-BET degrader based on proteolysis-targeting chimera (PROTAC) technology, demonstrates dramatically improved efficacy in cellular models of CRPC as compared with BET inhibition. ARV-771 effectively degrades BRD2/3/4 in 22Rv1 cells with a DC50 less than 5 nM. c-MYC protein is a downstream effector of BET proteins. Treatment with ARV-771 results in depletion of c-MYC with an IC50 of less than 1 nM. ARV-771 shows strong antiproliferative effect on 22Rv1, VCaP, and LnCaP95 cell lines. ARV-771 treatment has a pronounced effect on cell morphology consistent with apoptosis. FL-AR and AR-V7 mRNA are down-regulated upon treatment with 10 nM ARV-771 in VCaP cells. ARV-771 has an antiandrogenic effect on a number of AR-regulated genes in VCaP cells[1].

Treatment of non castrated male Nu/Nu mice bearing AR-V7+ 22Rv1 tumor xenografts with daily subcutaneous injections of ARV-771 at 10 mg/kg for 3 d leads to 37% and 76% down-regulation of BRD4 and c-MYC levels, respectively, in tumor tissue. A marked down-regulation in levels of AR-V7 is observed in the 22Rv1 tumors after ARV-771 treatment[1].

1949837-12-0

C49H60ClN9O7S2

986.65

DMSO:10 mM
Powder: -20°C for 3 years
In solvent: -80°C for 2 years