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    GW5074
    GW5074

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    This product is for research use only, not for human use. We do not sell to patients.
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    InvivoChem Cat #: V1011
    CAS #: 220904-83-6Purity ≥98%

    Description: GW5074 (GW-5074; GW 5074) is a novel, potent and selective c-Raf inhibitor with potential neuroprotective activity. It inhibits c-Raf with an IC50 of 9 nM and exhibits no activities against other kinases such as JNK1/2/3, MKK6/7, CDK1/2, MEK1, c-Src, VEGFR2, p38 MAP, or c-Fms. GW-5074 is able to prevent neurodegeneration and improve behavioral outcome in an animal model of Huntington's disease. GW 5074 has therapeutic potential for treating neurodegenerative pathologies in humans.

    References: [1] Chin PC, et al. J Neurochem, 2004, 90(3), 595-608.[2] Yue X, et al. Eur J Pharmacol, 2006, 540(1-3), 57-59.

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    Molecular Weight (MW)520.94
    FormulaC15H8Br2INO2
    CAS No.220904-83-6
    Storage-20℃ for 3 years in powder form
    -80℃ for 2 years in solvent
    Solubility (In vitro)DMSO:104 mg/mL (199.6 mM)     
    Water: <1 mg/mL
    Ethanol: <1 mg/mL
    Solubility (In vivo)30% propylene glycol, 5% Tween 80, 65% D5W: 30mg/mL
    SynonymsGW5074; GW 5074; GW-5074; 3-(3,5-Dibromo-4-hydroxy-benzylidene)-5-iodo-1,3-dihydro-indol-2-one


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    In Vitro

    In vitro activity: GW5074 is a potent and specific inhibitor of c-Raf with IC50 of 9 nM and has no effect of MKK6, MKK7, p38 MAP kinase and cdks in vitro. However, treatment of neuronal cultures with GW5074 permits accumulation of activating modifications on c-Raf and also B-Raf. The inhibition of LK-induced apoptosis by GW5074 in cerebellar granule neurons is not MEK-ERK-dependent. GW5074 delays down-regulation of Akt activity but inhibits apoptosis by an Akt-independent mechanism. GW5074 affects Ras, nuclear factor-kappa B and c-jun. GW5074 inhibits cell death caused by neurotoxins in granule cells and other neuronal types.


    Kinase Assay: In general, in vitro kinase assays are performed using purified kinase and synthetic substrates under standard conditions using the Kinase Profiling service of Upstate Biotechnology. Briefly, for each assay 5–10 mU of purified kinase is used. For GSK3β, cdk1, cdk2, cdk3, cdk5, the kinase is incubated with 1 μM GW5074 in a buffer containing 8 mM MOPS, pH 7.2, 0.2 mM EDTA, 10 mM magnesium acetate and [c- 33P-ATP] for 40 min at room temperature. Kinase activity is quantified by measuring 33P incorporation by spotting an aliquot on P30 filters, washing in 50 mM phosphoric acid and scintillation counting. The buffer composition for c-Raf, JNK1, JNK2, JNK3, MEK1, MKK6, MKK7 is 50 mM Tris pH 7.5, 0.1 mM EGTA, 10 mM magnesium acetate and [c- 33P-ATP]. The peptide substrates used are as follows: For c-Raf, 0.66 mg/mL MBP; for cdks, 0.1 mg/mL histone H1; for JNKs, 3 μM ATF2; for MEK1, 1 μM MAPK2; for MKK6, 1 μM of SAPK2a and for MKK7, 2 μM JNK1α.  


    Cell Assay: HCA is diluted from 100-fold concentrated solutions that are adjusted to pH 7.5. To evaluate the effects of GW5074 on HCA-induced cytotoxicity, GW5074 is added at the time cortical neurons are exposed to HCA. Viability is assessed 24 h later.

    In VivoGW5074 is protective in an in vivo experimental model of Huntington’s disease. GW5074 (5 mg/Kg) completely prevented extensive bilateral striatal lesions induced by 3-NP in mice. GW5074 completely abolishes chronic morphine-mediated AC superactivation I in CHO cells stably expressing the humanμ-opioid receptor. GW5074 suppresses sidestream smoke-induced airway hyperresponsiveness in mice.
    Animal modelC57BL/6 male mice
    Formulation & DosageDissolved in saline; 0.5–10 mg/kg; i.p. injection
    References

    [1] Chin PC, et al. J Neurochem, 2004, 90(3), 595-608.[2] Yue X, et al. Eur J Pharmacol, 2006, 540(1-3), 57-59.


    These protocols are for reference only. InvivoChem does not independently validate these methods.

    GW5074

    Effect of kinase inhibitors on cell surface expression of DF508-CFTR analyzed by flow cytometry. Summary of increase in cell surface expression of DF508-CFTR (% change in fluorescence intensity) of the hits analyzed by flow cytometry (two independent experiments, 10,000 live cells per treatment per experiment).
    Mol Cell Proteomics 2012 11, 745-57.

    GW5074


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