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    Tandutinib (MLN518, CT53518, NSC-726292)
    Tandutinib (MLN518, CT53518, NSC-726292)

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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 #: V0585
    CAS #: 387867-13-2Purity ≥98%

    Description: Tandutinib (formerly also known as MLN-518, CT-53518, D06005, NSC726292), a piperazinyl quinazoline, is a novel, potent and selective FLT3 inhibitor/antagonist with potential antitumor activity. It inhibits FLT3  with an IC50 of 0.22 μM. Tandutinib also inhibits PDGFR and c-Kit, and shows 15 to 20-fold higher potency for inhibiting FLT3 over CSF-1R, and >100-fold higher selectivity over FGFR, EGFR and KDR. Tandutinib has potential antineoplastic activity by inhibiting the autophosphorylation of FLT3 (FMS-Like Tyrosine kinase-3), c-KIT and PDGF (platelet-derived growth factor) receptor tyrosine kinases, thereby inhibiting cellular proliferation and inducing apoptosis. 

    References: Cancer Cell. 2002 Jun;1(5):421-32; Blood. 2004 Nov 1;104(9):2912-8. 

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    Molecular Weight (MW)562.7
    FormulaC31H42N6O4
    CAS No.387867-13-2
    Storage-20℃ for 3 years in powder form
    -80℃ for 2 years in solvent
    Solubility (In vitro)DMSO: 5 mg/mL (8.9 mM)
    Water: <1 mg/mL
    Ethanol: 6 mg/mL (10.7 mM)
    Solubility (In vivo)0.5% methylcellulose: 30 mg/mL
    SynonymsMLN 518; CT 53518, D06005, NSC726292, MLN-518, MLN0518, MLN 518, MLN518, NSC 726292, CT53518, NSC-726292, CT-53518, D-06005, D 06005, Tandutinib

    Chemical Name: N-(4-isopropoxyphenyl)-4-(6-methoxy-7-(3-(piperidin-1-yl)propoxy)quinazolin-4-yl)piperazine-1-carboxamide

    InChi Key: UXXQOJXBIDBUAC-UHFFFAOYSA-N

    InChi Code: InChI=1S/C31H42N6O4/c1-23(2)41-25-10-8-24(9-11-25)34-31(38)37-17-15-36(16-18-37)30-26-20-28(39-3)29(21-27(26)32-22-33-30)40-19-7-14-35-12-5-4-6-13-35/h8-11,20-23H,4-7,12-19H2,1-3H3,(H,34,38)

    SMILES Code: O=C(N1CCN(C2=C3C=C(OC)C(OCCCN4CCCCC4)=CC3=NC=N2)CC1)NC5=CC=C(OC(C)C)C=C5


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    In Vitro

    In vitro activity: Tandutinib has little activity against EGFR, FGFR, KDR, InsR, Src, Abl, PKC, PKA and MAPKs. Tandutinib inhibits IL-3-independent cell growth and FLT3-ITD autophosphorylation with an IC50 of 10-100 nM. Tandutinib also inhibits the proliferation of human leukemia Ba/F3 cells containing FLT3-ITD mutations with IC50 values of 10-30 nM, and the FLT3-ITD-positive Molm-13 and Molm-14 cells with an IC50 of 10 nM. In FLT3-ITD-positive Molm-14 cells but not the FLT3-ITD-negative THP-1 cells, Tandutinib treatment leads to significant apoptosis by 51% and 78% at 24 and 96 hours, respectively, due to specific FLT3 inhibition. Tandutinib preferentially inhibits the growth of blast colonies from FLT3 ITD-positive compared with ITD-negative patients with AML, without affecting colony formation by normal human progenitor cells.


    Kinase Assay: Autophosphorylation of PDGFR family kinase assays are cell-based enzyme-linked immunosorbent (ELISA) assays using CHO cells expressing wild-type PDGFRβ, chimeric protein PDGFRβ/c-Kit, and PDGFRβ/Flt3 which contain the extracellular and transmembrane domains of PDGFRβ and the cytoplasmic domain of c-Kit, and Flt-3. Cells are grown to confluency in 96-well microtiter plates under standard tissue culture conditions, followed by serum starvation for 16 hours. Briefly, quiescent cells are incubated at 37 °C with increasing concentrations of Tandutinib for 30 minutes followed by the addition of 8 nM PDGF-BB for 10 minutes. Cells are lysed in 100 mM Tris, pH 7.5, 750 mM NaCl, 0.5% Triton X-100, 10 mM sodium pyrophosphate, 50 mM NaF, 10 μg/mL aprotinin, 10 μg/mL leupeptin, 1 mM phenylmethylsulfonyl fluoride, 1 mM sodium vanadate, and the lysate is cleared by centrifugation at 15,000g for 5 minutes. Clarified lysates are transferred into a second microtiter plate in which the wells are previously coated with 500 ng/well of 1B5B11 anti-PDGFRβ mAb and then incubated for 2 hours at room temperature. After washing three times with binding buffer (0.3% gelatin, 25 mM HEPES, pH 7.5, 100 mM NaCl, 0.01% Tween 20), 250 ng/mL of rabbit polyclonal anti-phosphotyrosine antibody is added and plates are incubated at 37 °C for 60 minutes. Subsequently, each well is washed three times with binding buffer and incubated with 1 μg/mL of horseradish peroxidase-conjugated anti-rabbit antibody at 37 °C for 60 minutes. Wells are washed prior to adding 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid), and the rate of substrate formation is monitored at 650 nm.


    Cell Assay: Cells (Ba/F3, Molm-13, Molm-14, HL60, AML193, KG-1, KG-1a, THP-1, and RS4) are exposed to increasing concentrations of Tandutinib (0.004-30 μM). Cells are grown for 3-7 days in tissue culture, and viable cells, determined by Trypan blue dye exclusion, are counted. At daily intervals, cells are harvested, washed, and resuspended in 100 uL binding buffer containing 10 mM HEPES (pH 7.4), 140 mM NaCl, and 2.5 mM CaCl2. Annexin V-FITC (100 ng) and propidium iodide (250 ng) are added to the cell suspension followed by incubation at room temperature for 15 minutes. Flow cytometry is performed immediately after staining on a FACSort flow cytometer with excitation at 488 nm. Fluorescence of annexin V-FITC and DNA propidium iodide staining are measured at 515 nm and 585 nm, respectively.

    In VivoOral administration of Tandutinib at 60 mg/kg bid significantly increases the survival in mice bearing Ba/F3 cells expressing W51 FLT3-ITD mutant, and gives a significant reduction in mortality in a mouse bone marrow transplantation model. Tandutinib treatment at 180 mg/kg twice daily has mild toxicity toward normal hematopoiesis, however, it is a dose at which Tandutinib is effective in treating FLT3 ITD-positive leukemia in mice.
    Animal modelFemale athymic nude (nu/nu) mice injected with Ba/F3 cells expressing W51 FLT3-ITD mutant
    Formulation & DosageFormulated in a 0.5% methylcellulose (MC); 40-120 mg/kg;  Oral gavage
    References

    Blood. 2009 Oct 1;114(14):2984-92.


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

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