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Cat.No.S1043
| Related Targets | EGFR VEGFR JAK PDGFR FGFR Src HIF FLT HER2 Bcr-Abl |
|---|---|
| Other FLT3 Inhibitors | UNC2025 Dovitinib (TKI-258) Dovitinib (TKI258) Lactate monohydrate KW-2449 ENMD-2076 AST-487 (NVP-AST487) TCS 359 FF-10101 G-749 SKLB4771 (FLT3-IN-1) |
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In vitro |
Ethanol : 100 mg/mL
DMSO
: 35 mg/mL
(62.2 mM)
Water : Insoluble |
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In vivo |
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| Molecular Weight | 562.7 | Formula | C31H42N6O4 |
Storage (From the date of receipt) | |
|---|---|---|---|---|---|
| CAS No. | 387867-13-2 | Download SDF | Storage of Stock Solutions |
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| Synonyms | CT 53518, NSC726292, MLN518 | Smiles | CC(C)OC1=CC=C(C=C1)NC(=O)N2CCN(CC2)C3=NC=NC4=CC(=C(C=C43)OC)OCCCN5CCCCC5 | ||
| Targets/IC50/Ki |
c-Kit
0.17 μM
PDGFRβ
0.20 μM
FLT3
0.22 μM
CSF-1R
3.43 μM
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|---|---|
| In vitro |
Tandutinib (MLN518) has little activity against EGFR, FGFR, KDR, InsR, Src, Abl, PKC, PKA and MAPKs. It inhibits IL-3-independent cell growth and FLT3-ITD autophosphorylation with an IC50 of 10-100 nM. This compound 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. It 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 |
Cell based receptor autophosphorylation assays
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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 (MLN518) 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 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
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| In vivo |
Oral administration of Tandutinib (MLN518) 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. Treatment with this compound at 180 mg/kg twice daily has mild toxicity toward normal hematopoiesis, however, it is a dose at which it is effective in treating FLT3 ITD-positive leukemia in mice. |
References |
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(data from https://clinicaltrials.gov, updated on 2024-05-22)
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT00904852 | Withdrawn | Glioblastoma Multiforme |
Millennium Pharmaceuticals Inc. |
June 2009 | Phase 1 |
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