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    InvivoChem Cat #: V0463
    CAS #: 942183-80-4Purity ≥98%

    Description: SCH772984 (SCH-772984) is a novel, potent and ATP-competitive inhibitor of ERK1/2 with potential antitumor activity. It inhibits ERK1/2 with IC50s of 4 nM and 1 nM in cell-free assay, respectively. SCH772984 was identified by an affinity-based mass spectroscopy high-throughput platform with potential anticancer activity. SCH772984 is highly selective against kinases such as CLK2, FLT4, GSG2, MAP4K4, MAPK1, MINK1, PRKD1 and TTK, out of a wide range of 300 tested with more than 50% inhibition at a concentration of 1 μmol/L.

    References: Cancer Discov. 2013 Jul;3(7):742-50.

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    Molecular Weight (MW)587.67
    CAS No.942183-80-4
    Storage-20℃ for 3 years in powder form
    -80℃ for 2 years in solvent
    Solubility (In vitro)DMSO: 0.1 mg/mL (0.17 mM)
    Water: <1 mg/mL
    Ethanol: <1 mg/mL
    Solubility (In vivo)5% DMSO+30% PEG 300+ddH2O: 0.6 mg/mL
    SynonymsSCH-772984; SCH 772984; SCH772984; (R)-1-(2-oxo-2-(4-(4-(pyrimidin-2-yl)phenyl)piperazin-1-yl)ethyl)-N-(3-(pyridin-4-yl)-1H-indazol-5-yl)pyrrolidine-3-carboxamide

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    In Vitro

    In vitro activity: SCH772984 is a novel, selective and ATP competitive inhibitor of ERK1/2. SCH772984 inhibits phosphorylation of the ERK substrate p90 ribosomal S6 kinase (T359/S363 phospho-RSK) in a dose-dependent manner. SCH772984 also inhibits phosphorylation of residues in the activation loop of ERK itself. SCH772984 demonstrates EC50 values<500 nM in approximately 88% and 49% of BRAF-mutant or RAS-mutant tumor lines, respectively. Importantly, SCH772984 effectively inhibited MAPK signaling and cell proliferation in tumor cells resistant to concurrent treatment with BRAF and MEK inhibitors.

    Kinase Assay: SCH772984 is tested in 8 point dilution curves in duplicate against purified ERK2 or ERK1. The enzyme is added to the reaction plate. and incubated with the compound before adding a solution of substrate peptide and ATP. 14μl of diluted enzyme (0.3ng active ERK2 per reaction) is added to each well of a 384-well plate. The plates are gently shaken to mix the reagents and incubated for 45 minutes at room temperature. The reaction is stopped with 60μl of IMAP Binding Solution (1:2200 dilutions of IMAP beads in 1X Binding Buffer). The plates are incubated at room temperature for an additional 0.5 hours to allow complete binding of phosphopeptides to the IMAP beads. Plates are read on the LJL Analyst.

    Cell Assay: Cell proliferation experiments are performed in a 96-well format (six replicates), and cells (BRAF-mutant or RAS-mutant tumor lines) are plated at 4,000/well density. At 24 h after cell seeding, cells are treated with DMSO or 9 point IC50 dilution (0.001-10 μM) at 1% DMSO final for all concentrations. Viability is assayed on 5 days after dosing using ViaLight luminescence kit following the manufacturer’s recommendations. For cell line panel viability assay, cells are treated with SCH772984 for 4 days and assayed by CellTiterGlo luminescent cell viability assay.

    In Vivo The therapeutic effects of combining the CDK inhibitor Dinaciclib with inhibitors of ERK inhibitor SCH772984 were evaluated using two orthotopic patient-derived human pancreatic cancer xenograft models (Panc253 and Panc265). These models closely resemble the physiological and pathological conditions of pancreatic cancer in humans. A 2-3 mm3 tumor explant was implanted into the pancreas of nude mice and ultrasound imaging was used to measure the tumor size (3D) before randomization and treatment, which began when tumors grew to 50-100 mm3. The combination of Dinaciclib (20 mg/kg, i.p., t.i.w.) and SCH772984 (25 mg/kg, i.p., b.i.d.) dramatically inhibited the growth of primary orthotopic Panc265 (82.5%, p < 0.001) and Panc253 (95.7%, p<0.001) versus control, and also the number of metastatic lesions of both Panc265 (94.9%, p <0.001) and Panc253 (92.4%, p <0.02).
    Animal modelNude mice
    Formulation & Dosage25 mg/kg; i.p. injection

    Cancer Discov. 2013 Jul;3(7):742-50.

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


    Biochemical and cell-based activity of SCH772984. A, chemical structure of SCH772984. B, effects of SCH772984 on kinase activity of ERK1, ERK2, and MEK1. C, SCH772984 inhibits ERK and RSK phosphorylation. D, TdF binding activity of SCH772984, VTX-11e, or GSK1120212 to recombinant ERK2 and MEK1 enzymes.   2013 Jul;3(7):742-50.


    SCH772984 is efficacious in BRAF- or RAS-mutant tumor cells.


    SCH772984 is efficacious in BRAF and MEK combination resistance in BRAF-mutant A101D melanoma cells.  2013 Jul;3(7):742-50.


    SCH772984 is efficacious in tumor cell lines refractory to either BRAF or MEK inhibitors.  2013 Jul;3(7):742-50.


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