BIO

Catalog No.S7198 Batch:S719802

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Technical Data

Formula

C16H10BrN3O2
Molecular Weight 356.17 CAS No. 667463-62-9
Solubility (25°C)* In vitro DMSO 71 mg/mL (199.34 mM)
Ethanol 7 mg/mL (19.65 mM)
Water 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.)

Preparing Stock Solutions

Biological Activity

Description BIO (GSK-3 Inhibitor IX, 6-bromoindirubin-3-oxime, 6-Bromoindirubin-3'-oxime, MLS 2052) is a specific inhibitor of GSK-3 with IC50 of 5 nM for GSK-3α/β in a cell-free assay, shows >16-fold selectivity over CDK5, also a pan-JAK inhibitor with IC50 of 30 nM for Tyk2. BIO induces apoptosis in human melanoma cells.
Targets
GSK-3 [1]
(Cell-free assay)		 TYK2 [4]
(Cell-free assay)		 CDK5/p35 [1]
(Cell-free assay)		 CDK2/CyclinA [1]
(Cell-free assay)		 CDK1/CyclinB [1]
(Cell-free assay)		 View More
5 nM 30 nM 0.08 μM 0.30 μM 0.32 μM
In vitro BIO (6-bromoindirubin-3'-oxime) is a specific inhibitor of glycogen synthase kinase-3 (GSK-3), with IC50 of 5 nM for GSK-3α/β, shows >16-fold selectivity over CDK5. BIO interacts within the ATP binding pocket of these kinases, reduces β-catenin phosphorylation on a GSK-3-specific site in cellular models, closely mimicks Wnt signaling in Xenopus embryos. [1] In human and mouse embryonic stem cells, BIO maintains the undifferentiated phenotype and sustains expression of the pluripotent state-specific transcription factors Oct-3/4, Rex-1 and Nanog. BIO-mediated Wnt activation is functionally reversible, as withdrawal of the compound leads to normal multidifferentiation programs in both human and mouse embryonic stem cells. [2] BIO promotes proliferation in mammalian cardiomyocytes. [3]6BIO is also a pan-JAK inhibitor, with IC50 values of 0.03, 1.5, 8.0, 0.5 μM for TYK2, JAK1, JAK2 and JAK3. BIO selectively inhibits phosphorylation of STAT3 and induces apoptosis of human melanoma cells. [4]
In vivo BIO suppresses melanoma tumor growth in a mouse xenograft model. [4]
Features The first pharmacological agent shown to maintain self-renewal in human and mouse embryonic stem cells.

Protocol (from reference)

Kinase Assay:[1]
  • Kinase assay

    Kinase activities are assayed in Buffer A or C at 30°C, at a final ATP concentration of 15 μM. Blank values are subtracted and activities calculated as pmoles of phosphate incorporated during a 10 min incubation. Controls are performed with appropriate dilutions of dimethylsulfoxide. In a few cases phosphorylation of the substrate is assessed by autoradiography after SDS-PAGE. GSK-3α/β is purified from porcine brain by affinity chromatography on immobilized axin. It is assayed, following a 1/100 dilution in 1 mg BSA/ml 10 mM DTT, with 5 μl 40 μM GS-1 peptide, a specific GSK-3 substrate, (YRRAAVPPSPSLSRHSSPHQSpEDEEE), in buffer A, in the presence of 15 μM [γ-32P] ATP (3,000 Ci/mmol; 1 mCi/ml) in a final volume of 30 μl. After 30 min incubation at 30°C, 25 μl aliquots of supernatant are spotted onto 2.5 × 3 cm pieces of Whatman P81 phosphocellulose paper, and 20 seconds later, the filters are washed five times (for at least 5 min each time) in a solution of 10 ml phosphoric acid/liter of water. The wet filters are counted in the presence of 1 ml ACS scintillation fluid.
Cell Assay:[1]
  • Cell lines

    COS1, Hepa or SH-SY5Y cells

  • Concentrations

    ~10 μM

  • Incubation Time

    12 or 24 h

  • Method

    COS1, Hepa (wild-type, CEM/LM AhR deficient and ELB1 ARNT deficient), or SH-SY5Y cells are grown in 6 cm culture dishes in Dulbecco's Modified Medium (DMEM) containing 10% fetal bovine serum. For treatment, IO (5 μM), BIO (5 or 10 μM), MeBIO (5 or 50 μM), LiCl (20 or 40 mM), or mock solution (DMSO, 0.5% final concentration) is added to medium when cell density reaches ∼70% confluence. After 12 (SH-SY5Y) or 24 hours, the cells, while still in plate, are lysed with lysis buffer (1% SDS, 1 mM sodium orthovanadate, 10 mM Tris [pH 7.4]). The lysate is passed several times through a 26G needle, centrifuged at 10,000 × g for 5 min, and adjusted to equal protein concentration. About 8 μg of each sample is loaded for immunoblotting. Enhanced chemiluminescence is used for detection. The following primary antibodies are used: mouse anti-β-catenin CT (Upstate Biotechnolgies, Clone 7D8, recognizes total β-catenin), mouse anti-phospho-β-catenin (Upstate Biotechnologies, Clone 8E7, recognizes dephosphorylated β-catenin), mouse anti-GSK-3 β, mouse anti-GSK-3 phosphoTyr216, rabbit anti-AhR (Aryl hydrocarbon receptor), and rabbit anti-actin.
Animal Study:[4]
  • Animal Models

    mouse

  • Dosages

    50 mg/kg

  • Administration

    Oral gavage

Customer Product Validation

Data from [Data independently produced by PLoS One, 2014, 9(7), e100947]

Data from [Data independently produced by , , Int J Oncol, 2017, 50(1):101-110]

Selleck's BIO has been cited by 35 publications

Extraembryonic mesoderm cells derived from human embryonic stem cells rely on Wnt pathway activation [ Cell Prolif, 2024, 10.1111/cpr.13761] PubMed: 39385268
CDKAL1 Drives the Maintenance of Cancer Stem-Like Cells by Assembling the eIF4F Translation Initiation Complex [ Adv Sci (Weinh), 2023, 10(12):e2206542] PubMed: 36786012
Upregulation of β-catenin signaling represents a single common pathway leading to the various phenotypes of spinal degeneration and pain [ Bone Res, 2023, 11(1):18] PubMed: 37059724
Epithelial cell adhesion molecule (EpCAM) regulates HGFR signaling to promote colon cancer progression and metastasis [ J Transl Med, 2023, 21(1):530] PubMed: 37543570
Epithelial cell adhesion molecule (EpCAM) regulates HGFR signaling to promote colon cancer progression and metastasis [ J Transl Med, 2023, 21(1):530] PubMed: 37543570
MEK inhibition overcomes chemoimmunotherapy resistance by inducing CXCL10 in cancer cells [ Cancer Cell, 2022, S1535-6108(21)00662-0] PubMed: 35051357
Neddylation is essential for β-catenin degradation in Wnt signaling pathway [ Cell Rep, 2022, 38(12):110538] PubMed: 35320710
Yes-associated protein activation potentiates glycogen synthase kinase-3 inhibitor-induced proliferation of neonatal cardiomyocytes and iPS cell-derived cardiomyocytes [ J Cell Physiol, 2022, 10.1002/jcp.30724] PubMed: 35312066
BAP31 Regulates Wnt Signaling to Modulate Cell Migration in Lung Cancer [ Front Oncol, 2022, 12:859195] PubMed: 35359416
Establishment and characterization of immortalized sweat gland myoepithelial cells [ Sci Rep, 2022, 12(1):7] PubMed: 34997030

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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.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.