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    Nintedanib (Vargatef; BIBF 1120)
    Nintedanib (Vargatef; BIBF 1120)

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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 #: V0530
    CAS #: 656247-17-5 Purity ≥98%

    Description: Nintedanib (formerly BIBF-1120; trade name: Vargatef) is an orally bioavailable multi-kinase inhibitor with potential antineoplastic and anti-fibrotic activity. It inhibits VEGFR1/2/3, FGFR1/2/3 and PDGFRα/β with IC50s of 34 nM/13 nM/13 nM, 69 nM/37 nM/108 nM and 59 nM/65 nM in cell-free assays. As of Nov 2014, Nintedanib was approved by FDA for the treatment of idiopathic pulmonary fibrosis (IPF).

    References: Cancer Res. 2008 Jun 15;68(12):4774-82; J Med Chem. 2009 Jul 23;52(14):4466-80.

    Related CAS: 928326-83-4 (free base); 656247-18-6 (esylate)

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    Molecular Weight (MW)539.62
    FormulaC31H33N5O4
    CAS No.656247-17-5(free base); 
    Storage-20℃ for 3 years in powder form
    -80℃ for 2 years in solvent
    Solubility (In vitro)DMSO: 6 mg/mL (11.11mM)
    Water:<1 mg/mL
    Ethanol: 3 mg/mL (5.6 mM)
    Solubility (In vivo)30% PEG400+0.5% Tween80+5% propylene glycol: 30 mg/mL
    SynonymsNintedanib; BIBF-1120; Intedanib, BIBF 1120; BIBF1120;trade name: Vargatef. 

    Chemical Name: (Z)-methyl 3-(((4-(N-methyl-2-(4-methylpiperazin-1-yl)acetamido)phenyl)amino)(phenyl)methylene)-2-oxoindoline-6-carboxylate

    InChi Key: XZXHXSATPCNXJR-ZIADKAODSA-N

    InChi Code: InChI=1S/C31H33N5O4/c1-34-15-17-36(18-16-34)20-27(37)35(2)24-12-10-23(11-13-24)32-29(21-7-5-4-6-8-21)28-25-14-9-22(31(39)40-3)19-26(25)33-30(28)38/h4-14,19,32H,15-18,20H2,1-3H3,(H,33,38)/b29-28-

    SMILES Code: O=C(C1=CC(NC/2=O)=C(C=C1)C2=C(NC3=CC=C(N(C)C(CN4CCN(C)CC4)=O)C=C3)/C5=CC=CC=C5)OC


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    In Vitro

    In vitro activity: BIBF1120 inhibits PDGFR kinase activity of PDGFR alpha and PDGFR beta types with IC50 values of 59 nM and 65 nM, respectively. In addition, BIBF1120 suppresses the FGFR subtypes with IC50 of 60 nM, 37 nM and 108 nM for FGFR1, FGFR2, and FGFR3, respectively. BIBF1120 binds to the ATP-binding site in the cleft between the amino and carboxy terminal lobes of the kinase domain. The indolinone scaffold forms two hydrogen bonds with the backbone nitrogen of Cys919 and the backbone carbonyl oxygen of Glu917 in the hinge region. BIBF 1120 inhibits proliferation of PDGF-BB stimulated BRPs with EC50 of 79 nM in cell assays. BIBF1120 at concentrations as low as 100 nM blocks activation of MAPK after stimulation with 5% serum plus PDGF-BB. In cultures of human vascular smooth muscle cells (HUASMC), BIBF1120 prevents PDGF-BB stimulated proliferation with an EC50 of 69 nM.


    Kinase Assay: The cytoplasmic tyrosine kinase domain of VEGFR2 (residues 797-1355 according to sequence deposited in databank SWISS-PROT P35968) is cloned into pFastBac fused to GST and extracted. Enzyme activity is assayed in the presence or absence of serial dilutions of BIBF1120 performed in 25% DMSO. Each microtiter plate contains internal controls such as blank, maximum reaction, and historical reference compound. All incubations are conducted at room temperature on a rotation shaker. 10 μL of each BIBF1120 dilution is added to 10 μL of diluted kinase (0.8 μg/mL VEGFR2, 10 mM Tris pH 7.5, 2 mM EDTA, and 2 mg/mL BSA) and preincubated for 1 hour. The reaction is started by addition of 30 μL of substrate mix containing 62.4 mM Tris pH 7.5, 2.7 mM DTT, 5.3 mM MnCl2, 13.3 mM Mg-acetate, 0.42 mM ATP, 0.83 mg/mL Poly-Glu-Tyr(4:1), and 1.7 μg/mL Poly-Glu-Tyr(4:1)-biotin and incubated for 1 hour. The reaction is stopped by addition of 50 μL of 250 mM EDTA, 20 mM HEPES, pH 7.4. 90 μL of the reaction mix is transferred to a streptavidin plate and incubated for 1-2 hours. After three washes with PBS the EU-labeled antibody, PY20 is added (recommended dilution 1:2000 of 0.5 mg/mL labeled antibody in DELFIA assay buffer). Excessive detection antibody is removed by three washes of DELFIA washing buffer. Then 10 minutes before measurement on the multilabel reader, each well is incubated with 100 μL of DELFIA enhancement solution.


    Cell Assay: The cell lines (HUVEC, HUASMC, and BRP) are used for the assay. BIBF1120 is added to the cultures two hours before the addition of ligands. Cell lysates are generated. Western blotting is done using standard SDS-PAGE methods, loading 50 to 75 μg of protein per lane. Detection is facilitated by enhanced chemiluminescence. Total and phosphorylated mitogen-activated protein kinase (MAPK) is analyzed using monoclonal antibodies M3807 and M8159. Total Akt is detected using the corresponding polyclonal antibody and phosphorylated Akt (Ser473) is analyzed by using its monoclonal antibody. Monoclonal antibody is also used to detect cleaved caspase-3 while KDR (VEGFR2) protein is detected using a corresponding antibody.

    In VivoIn all tumor models tested thus far, including human tumor xenografts growing in nude mice and a syngeneic rat tumor model, BIBF1120 is highly active at well-tolerated doses (25-100 mg/kg daily p.o.). This is evident in the magnetic resonance imaging of tumor perfusion after 3 days, reducing vessel density and vessel integrity after 5 days, and profound growth inhibition.
    Animal modelAthymic NMRI-nu/nu female mice bearing FaDu, Caki-1, SKOV-3, H460, HT-29, or PAC-120 xenografts
    Formulation & Dosage Dissolved in a 0.5 % Natrosol solution; 100 mg/kg; oral gavage
    References

    Cancer Res. 2008 Jun 15;68(12):4774-82; J Med Chem. 2009 Jul 23;52(14):4466-80.Jun;10(6):949-59.


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

    Nintedanib (BIBF 1120)

    Cancer Res. 2008 Jun 15;68(12):4774-82.

    Nintedanib (BIBF 1120)

    Nintedanib (BIBF 1120)

    Cancer Res. 2008 Jun 15;68(12):4774-82.


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