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Cat.No.S1094
| Related Targets | EGFR VEGFR PDGFR FGFR Src MEK CSF-1R FLT3 HER2 c-Kit |
|---|---|
| Other c-Met Inhibitors | Tepotinib Dihexa SGX-523 PHA-665752 Foretinib SU11274 BMS-777607 JNJ-38877605 Tivantinib Savolitinib (AZD6094) |
| Cell Lines | Assay Type | Concentration | Incubation Time | Formulation | Activity Description | PMID |
|---|---|---|---|---|---|---|
| human A549 cells | Function assay | 1 h | Antagonist activity at c-MET receptor in human A549 cells assessed as inhibition of autophosphorylation after 1 hr by ELISA, IC50=4 nM | |||
| Click to View More Cell Line Experimental Data | ||||||
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In vitro |
DMSO
: 74 mg/mL
(198.72 mM)
Water : Insoluble Ethanol : Insoluble |
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In vivo |
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| Molecular Weight | 372.38 | Formula | C19H16N8O |
Storage (From the date of receipt) | |
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| CAS No. | 956905-27-4 | Download SDF | Storage of Stock Solutions |
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| Synonyms | N/A | Smiles | C1=CC2=C(C=CC(=C2)CN3C4=NC(=CN=C4N=N3)C5=CN(N=C5)CCO)N=C1 | ||
| Targets/IC50/Ki |
c-Met
(A549 cells) 4.8 nM
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| In vitro |
Being more selective than staurosporine or PF-02341066, PF-04217903 displays >1000-fold selectivity for c-Met over a panel of 208 kinases, although more susceptible to oncogenic mutations of c-Met that attenuate potency than PF-02341066. In addition to WT c-Met, this compound displays similar potency to inhibit the activity of c-Met-H1094R, c-Met-R988C, and c-Met-T1010I with IC50 of 3.1 nM, 6.4 nM, and 6.7 nM, respectively, but has no inhibitory activity against c-Met-Y1230C with IC50 of >10 μM. This chemical in combination with sunitinib significantly inhibits endothelial cells, but not the tumor cells B16F1, Tib6, EL4, and LLC It significantly inhibits the clonogenic growth of LXFA 526L and LXFA 1647L with IC50 values of 16 nM, and 13 nM, respectively, yielding an additive effect when in combination with cetuximab. This compound potently inhibits c-Met-driven processes such as cell growth, motility, invasion, and morphology of a variety of tumor cells. Its treatment (2 μM) increased cell death of GTL-16 cells, which involves the downregulation of phosphorylated 4E-BP1, ERK/MAPK associated proteins and PI3K/AKT pathway.
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| Kinase Assay |
Cellular c-Met phosphorylation ELISA
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A549 cells with endogenous human WT c-Met are seeded in 96-well plates in growth medium and cultured overnight. On the second day of the assay, the growth medium is replaced with serum-free medium (with 0.04% BSA). Serial dilutions of this compound are added to each well, and cells are incubated at 37 °C for 1 hour. Then 40 ng/mL HGF is added to the cells for 20 minutes. The cells are washed once with HBSS supplemented with 1 mM Na3VO4, and protein lysates are generated from cells using lysis buffer. Phosphorylation of c-Met is assessed by an ELISA method utilizing capture antibodies specific for c-Met and a detection antibody specific for phosphorylated tyrosine residues. Antibody-coated plates are incubated in the presence of protein lysates at 4 °C overnight and washed with 1% Tween 20 in PBS seven times. HRP-PY20 (horseradish peroxidase-conjugated anti-phosphotyrosine) is diluted 1:500 in blocking buffer and added to each plate for 30 minutes. Plates are then washed again, and TMB peroxidase substrate is added to initiate the HRP-dependent colorimetric reaction and the reaction stopped by addition of 0.09 N H2SO4. ELISA end points are the absorbance measured at 450 nm using a spectrophotometer. IC50 value is calculated by concentration-response curve fitting utilizing a Microsoft Excel-based four-parameter analytical met
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| In vivo |
Although unable to inhibit tumor growth in the sunitinib-sensitive B16F1 and Tib6 tumor models, the combination of PF-04217903 and sunitinib significantly inhibits tumor growth in sunitinib-resistant EL4, and LLC tumor models compared with sunitinib or this compound alone by significantly blocking vascular expansion, indicating a functional role for HGF/c-Met axis in the sunitinib-resistant tumors.
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References |
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(data from https://clinicaltrials.gov, updated on 2024-05-22)
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT00706355 | Terminated | Neoplasms |
Pfizer |
August 2008 | Phase 1 |
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