BAY-61-3606

Catalog No.S7006 Batch:S700602

Technical Data

Formula	C₂₀H₁₈N₆O₃.2HCl
Molecular Weight	463.32	CAS No.	648903-57-5
Solubility (25°C)*	In vitro	DMSO	14 mg/mL (30.21 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

BAY-61-3606 is a potent and selective inhibitor of Syk kinase (Ki = 7.5 nM). BAY-61-3606 induces cell cycle arrest and apoptosis.

Targets

Syk ^[1]
(Cell-free assay)

7.5 nM(Ki)

In vitro

BAY 61-3606 is a highly selective inhibitor of Syk kinase. Other selected tyrosine kinases, Lyn, Fyn, Src, Itk, and Btk, are not inhibited by BAY 61-3606 in concentrations up to 4.7 μM. BAY 61-3606 is also found to inhibit B cell receptor (BCR)-mediated signaling^[1].

Bay 61-3606 is a sensitizer of TRAIL-induced apoptosis. Mcl-1 downregulation by Bay 61-3606 are concentration- and time-dependent in MCF-7 cells. phosphorylation of Syk is reduced by Bay 61-3606 in MCF-7 and T47D cells. Downregulation of Mcl-1 by Bay 61-3606 is independent of Syk in breast cancer cells. Bay 61-3606 promotes the ubiquitin/proteasome-dependent degradation of the Mcl-1 protein in MCF-7 cells. Bay 61-3606 inhibits the phosphorylation of CDK9, RNA polymerase II, and Mcl-1 expression in MCF-7 cells. Bay 61-3606 inhibits CDK9 kinase activity with an in vitro IC50 of 37 nM^[2].

In vivo

After 20 days of drug administration, the volume of the xenografted tumor was significantly (P <0.001) reduced the efficacy of Bay 61–3606 when administered in TRAIL combination^[2].

Oral administration of BAY 61-3606 to rats significantly suppresses antigen-induced passive cutaneous anaphylactic reaction, bronchoconstriction, and bronchial edema at 3 mg/kg. Furthermore, BAY 61-3606 attenuates antigen-induced airway inflammation in rats^[1].

Protocol (from reference)

Cell Assay:^{^[2]}	Cell lines MCF-7 cells Concentrations 2.5 μM or 5 μM Incubation Time 12 h or 24 h Method MCF-7 cells are exposed to TRAIL (indicated concentrations:0, 12.5, 25, 37.5 ng/ml) with or without Bay 61-3606 (2.5 μM) for 24 h; After exposure to the agents for 12 h, MCF-7 cells are subjected to immunocytochemistry using an active Bak antibody; Caspase activity is measured in MCF-7 cells exposed to Bay 61-3606 (5 μM) with or without TRAIL (50 ng/ml) for 24 h.

Cell Assay:^{^[2]}

Cell lines
MCF-7 cells
Concentrations
2.5 μM or 5 μM
Incubation Time
12 h or 24 h
Method
MCF-7 cells are exposed to TRAIL (indicated concentrations:0, 12.5, 25, 37.5 ng/ml) with or without Bay 61-3606 (2.5 μM) for 24 h; After exposure to the agents for 12 h, MCF-7 cells are subjected to immunocytochemistry using an active Bak antibody; Caspase activity is measured in MCF-7 cells exposed to Bay 61-3606 (5 μM) with or without TRAIL (50 ng/ml) for 24 h.

References

Selleck's BAY-61-3606 has been cited by 16 publications

Probucol protects against brain damage caused by intra-neural pyroptosis in rats with vascular dementia through inhibition of the Syk/Ros pathway [ Aging (Albany NY), 2024, 16(5):4363-4377]	PubMed: 38441564
HP1 induces ferroptosis of renal tubular epithelial cells through NRF2 pathway in diabetic nephropathy [ Open Life Sci, 2023, 18(1):20220678]	PubMed: 37589000
Proteogenomics refines the molecular classification of chronic lymphocytic leukemia [ Nat Commun, 2022, 13(1):6226]	PubMed: 36266272
Proteogenomics refines the molecular classification of chronic lymphocytic leukemia [ Nat Commun, 2022, 13(1):6226]	PubMed: 36266272
Fcγ receptor activation mediates vascular inflammation and abdominal aortic aneurysm development [ Clin Transl Med, 2021, 11(7):e463]	PubMed: 34323424
ARPC1B binds WASP to control actin polymerization and curtail tonic signaling in B cells [ JCI Insight, 2021, e149376]	PubMed: 34673575
Dectin-2-mediated initiation of immune responses caused by influenza virus hemagglutinin [ Biomed Res, 2021, 42(2):53-66]	PubMed: 33840686
Mapping phospho-catalytic dependencies of therapy-resistant tumours reveals actionable vulnerabilities. [ Nat Cell Biol, 2019, 21(6):778-790]	PubMed: 31160710
Berberine suppresses mast cell-mediated allergic responses via regulating FcɛRI-mediated and MAPK signaling. [ Int Immunopharmacol, 2019, 71:1-6]	PubMed: 30861392
Multiple sources of signal amplification within the B-cell Ras/MAPK pathway. [ Mol Biol Cell, 2019, 30(13):1610-1620]	PubMed: 31042097

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

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