ARV-771 is a small-molecule pan-BET degrader with Kd values of 4.7, 7.6, 7.6 nM against BRD2, BRD3 and BRD4, respectively. ARV-771 potently 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.
In vivo, 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 results in 37% and 76% down-regulation of BRD4 and c-MYC levels, respectively, in tumor tissue.
|Cell lines||22Rv1 cells|
|Preparation method||ARV-771 is dissolved in DMSO. 22Rv1 cells (5,000 cells per well) are dosed with ARV-771 serially diluted 1:3 for a 10-point dose curve for 72 h. CellTiter-Glo Luminescent Cell Viability Assay is added, and the plate is read on a luminometer. Data are analyzed and plotted using GraphPad Prism software.|
|Incubation time||72 h|
|Animal models||Mice bearing tumors|
|Dosages||(5, 10, 30, 50 mg/kg) for up to 3 wk|
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
|Solubility||DMSO 10 mM|
Novel BET protein proteolysis-targeting chimera exerts superior lethal activity than bromodomain inhibitor (BETi) against post-myeloproliferative neoplasm secondary (s) AML cells.
Saenz DT, et al. Leukemia. 2017 Sep;31(9):1951-1961. PMID: 28042144.
PROTAC-induced BET protein degradation as a therapy for castration-resistant prostate cancer.
Raina K, et al. Proc Natl Acad Sci U S A. 2016 Jun 28;113(26):7124-9. PMID: 27274052.
|Related Epigenetic Reader Domain Products|
AZD5153 is a potent bivalent triazolopyridazine based Bromodomain and Extraterminal (BET) Inhibitor, with IC50 value of 5 nM.
MS417 (also known as GTPL7512) is a potent and selective BRD4 inhibitor, which binds to BRD4-BD1 and BRD4-BD2 with IC50s of 30 and 46 nM, respectively.
FL-411 is a selective BRD4 inhibitor.
dBET6 is a highly potent, selective and cell-permeable degrader of BET with an IC50 of 14 nM.
dBET1 is a potent BRD4 protein degrader with an EC50 of 430 nM.
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