BRD4770

Catalog No.S7591 Batch:S759102

Technical Data

Formula	C₂₅H₂₃N₃O₃
Molecular Weight	413.47	CAS No.	1374601-40-7
Solubility (25°C)*	In vitro	DMSO	20 mg/mL (48.37 mM)
		Water	Insoluble
		Ethanol	Insoluble
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description

BRD4770 is a histone methyltransferase G9a inhibitor with IC50 of 6.3 μM, and induces cell senescence.

Targets

G9a ^[1]

In vitro

BRD4770 reduces cellular levels of di- and trimethylated H3K9 via inhibition of G9a, induces senescence, and inhibits both anchorage-dependent and -independent proliferation in the pancreatic cancer cell line PANC-1. ^[1] The combination of gossypol and BRD4770 increases LC3-II levels and the autophagosome number, and thus acts in synergy to induce cell death in PANC-1 cells. ^[2]

Protocol (from reference)

Kinase Assay:^{^[1]}	Biochemical activity of G9a Dissociation Enhanced Lanthanide Fluoro-ImmunoAssays (DELFIA) are performed in white, opaque 384-well plates coated with Neutravidin. Test compounds are diluted to 12 μg/mL in 50mM Tris-HCl pH 8.5 containing 4% DMSO and 10 μL is dispensed into the wells. Blank and control wells received only compound buffer. GST-G9a at 10 μg/mL and SAM at 40 μM are diluted in 50mM Tris HCl pH 8.5/10 mM DTT and added in a volume of 20 μL. Blank wells receives Tris/DTT buffer only. The reactions are initiated by the addition of 800 nM H3(1-20)-cysbiotin substrate in 50 mM Tris pH 8.5 in a volume of 10 μl, and incubated at room temperature for 60 minutes. The plates are washed 3 times with 100 μl of Wash Buffer (50mM Tris pH 7.4, 150 mM NaCl, 0.05% Tween 20, 0.2% BSA). Next, 50 μl of Fluoroimmunoassay (FI) Buffer (50 mM Tris HCl pH 7.8, 150 mM NaCl, 0.05% Tween 40, 25 μM DTPA, 0.2% BSA, 0.05% BGG) containing 5ng α-2X-di-meth H3-K9 and 5ng goat anti-rabbit Eu chelate is added to all wells of the plate, and the plate is incubated for an additional hour at room temperature. The plates are washed 3 times with 100 μL of Wash Buffer, and 50 μL of Enhancement Solution is added to each well. Time resolved fluorescence is measured after 45 minutes on a Viewlux Microplate Imager imaging for 15 seconds with a 354 μs window, 400 μs delay, excitation at 360 nm, and emission at 618 nm.
Cell Assay:^{^[1]}	Cell lines PANC-1 cells Concentrations ~20 μM Incubation Time 72 hours Method PANC-1 cells are seeded and treated with BRD4770 in 6-well plates for 72 h. Cells are trypsinized and tested for soft agar colony formation using CytoSelect 96-Well Cell Transformation Assay, using the CyQuant GR dye to measure total cellular nucleic acid levels. Fluorescence is detected with an Analyst HT plate reader using a 485/520 nm filter set.

Kinase Assay:^{^[1]}

Biochemical activity of G9a
Dissociation Enhanced Lanthanide Fluoro-ImmunoAssays (DELFIA) are performed in white, opaque 384-well plates coated with Neutravidin. Test compounds are diluted to 12 μg/mL in 50mM Tris-HCl pH 8.5 containing 4% DMSO and 10 μL is dispensed into the wells. Blank and control wells received only compound buffer. GST-G9a at 10 μg/mL and SAM at 40 μM are diluted in 50mM Tris HCl pH 8.5/10 mM DTT and added in a volume of 20 μL. Blank wells receives Tris/DTT buffer only. The reactions are initiated by the addition of 800 nM H3(1-20)-cysbiotin substrate in 50 mM Tris pH 8.5 in a volume of 10 μl, and incubated at room temperature for 60 minutes. The plates are washed 3 times with 100 μl of Wash Buffer (50mM Tris pH 7.4, 150 mM NaCl, 0.05% Tween 20, 0.2% BSA). Next, 50 μl of Fluoroimmunoassay (FI) Buffer (50 mM Tris HCl pH 7.8, 150 mM NaCl, 0.05% Tween 40, 25 μM DTPA, 0.2% BSA, 0.05% BGG) containing 5ng α-2X-di-meth H3-K9 and 5ng goat anti-rabbit Eu chelate is added to all wells of the plate, and the plate is incubated for an additional hour at room temperature. The plates are washed 3 times with 100 μL of Wash Buffer, and 50 μL of Enhancement Solution is added to each well. Time resolved fluorescence is measured after 45 minutes on a Viewlux Microplate Imager imaging for 15 seconds with a 354 μs window, 400 μs delay, excitation at 360 nm, and emission at 618 nm.

Cell Assay:^{^[1]}

Cell lines
PANC-1 cells
Concentrations
~20 μM
Incubation Time
72 hours
Method
PANC-1 cells are seeded and treated with BRD4770 in 6-well plates for 72 h. Cells are trypsinized and tested for soft agar colony formation using CytoSelect 96-Well Cell Transformation Assay, using the CyQuant GR dye to measure total cellular nucleic acid levels. Fluorescence is detected with an Analyst HT plate reader using a 485/520 nm filter set.

References

Selleck's BRD4770 has been cited by 5 publications

BRD4770 inhibits vascular smooth muscle cell proliferation via SUV39H2, but not EHMT2 to protect against neointima formation [ Hum Cell, 2023, 10.1007/s13577-023-00924-4]	PubMed: 37306883
The CHCHD2/Sirt1 corepressors involve in G9a-mediated regulation of RNase H1 expression to control R-loop [ Cell Insight, 2023, 2(4):100112]	PubMed: 37388553
BRD4770 functions as a novel ferroptosis inhibitor to protect against aortic dissection [ Pharmacol Res, 2022, 177:106122]	PubMed: 35149187
Epigenetic Reprogramming with Antisense Oligonucleotides Enhances the Effectiveness of Androgen Receptor Inhibition in Castration-Resistant Prostate Cancer [ Cancer Res, 2018, 78(20):5731-5740]	PubMed: 30135193
The histone methyltransferase G9a: a new therapeutic target in biliary tract cancer [Mayr C, et al. Hum Pathol, 2018, 72:117-126]	PubMed: 29133140

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