Golvatinib (E7050)
Catalog No.S2859
Molecular Weight(MW): 633.69
Golvatinib (E7050) is a dual c-Met and VEGFR-2 inhibitor with IC50 of 14 nM and 16 nM, does not inhibit bFGF-stimulated HUVEC growth (up to 1000 nM). Phase 1/2.
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PC-9/LMC-GR cells (2 × 105 cells/well) were incubated in 6-well plates with various concentrations of gefitinib with or without crizotinib (1 μmol/L) or golvatinib (1 μmol/L) for 1 hour. Cell lysate were obtained and subjected to immunoblotting with antibodies toward the indicated molecules.
Mol Cancer Ther, 2017, 16(3):506-515. Golvatinib (E7050) purchased from Selleck.
B, PC-9/LMC-GR cells (2 × 105 cells/well) were incubated in 6-well plates with various concentrations of gefitinib with or without crizotinib (1 μmol/L) or golvatinib (1 μmol/L) for 1 hour. Cell lysate were obtained and subjected to immunoblotting with antibodies toward the indicated molecules.
Mol Cancer Ther, 2017, 16(3):506-515. Golvatinib (E7050) purchased from Selleck.
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SBC-5, DMS273, and DMS273-G3H cells were treated with either 1 lM crizotinib or golvatinib for 2 h. Cell lysates were evaluated for protein expression by Western blot analysis. Three independent experiments were carried out, and a representative result is shown. p, phosphorylated.
Cancer Sci, 2017, 108(7):1378-1385. Golvatinib (E7050) purchased from Selleck.
Purity & Quality Control
Choose Selective c-Met Inhibitors
Biological Activity
| Description | Golvatinib (E7050) is a dual c-Met and VEGFR-2 inhibitor with IC50 of 14 nM and 16 nM, does not inhibit bFGF-stimulated HUVEC growth (up to 1000 nM). Phase 1/2. | ||||
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| In vitro |
In vitro studies indicate that E7050 potently inhibits phosphorylation of both c-Met and VEGFR-2. E7050 also potently represses the growth of both c-met amplified tumor cells and endothelial cells stimulated with either HGF or VEGF. [1] E7050 circumvents resistance to all of the reversible, irreversible, and mutant-selective EGFR-TKIs induced by exogenous and/or endogenous HGF in EGFR mutant lung cancer cell lines, by blocking the Met/Gab1/PI3K/Akt pathway in vitro. E7050 also prevents the emergence of gefitinib-resistant HCC827 cells induced by continuous exposure to HGF. [2] |
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| In vivo | In vivo studies using E7050 shows inhibition of the phosphorylation of c-Met and VEGFR-2 in tumors, and strong inhibition of tumor growth and tumor angiogenesis in xenograft models. Treatment of some tumor lines containing c-met amplifications with high doses of E7050 (50–200 mg/kg) induces tumor regression and disappearance. In a peritoneal dissemination model, E7050 shows an antitumor effect against peritoneal tumors as well as a significant prolongation of lifespan in treated mice. [1] In another xenograft model research, tumors produced by HGF-transfected Ma-1 (Ma-1/HGF) cells are more angiogenic than vector control tumors and shows resistance to ZD1839. E7050 alone inhibits angiogenesis and retards growth of Ma-1/HGF tumors. E7050 combined with ZD1839 induces marked regression of tumor growth. [3] |
Protocol
| Kinase Assay:[1] |
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Western blot analysis: The phosphorylation status of c-Met and VEGFR-2 is detected by Western blot analysis. For c-Met, MKN45 cells are incubated with a serial dilution of E7050 in complete medium at 37 °C for 2 h. For VEGFR-2, HUVEC are starved with human endothelial serum free medium containing 0.5% FBS for 24 h. Subsequently HUVEC are incubated with a serial dilution of E7050 for 1 h and then incubated with 20 ng/mL of human VEGF for 5 min. Cells are lysed by lysis buffer (50 mM HEPES [pH 7.4], 150 mM NaCl, 10% glycerol, 1% Triton X-100, 1.5 mM MgCl2, 1 mM EDTA [pH 8.0], 100 mM NaF, 1 mM phenylmethylsulfonyl fluoride 1 mM sodium orthovanadate, 10 μg/mL aprotinin, 50 μg/mL leupeptin, and 1 μg/mL pepstatin A). The resected tumor samples are homogenized with lysis buffer containing 25 mM β-glycerophosphate and 0.5% (v/v) phosphatase inhibitor cocktail 2 at 4 °C. Cellular debris is removed by centrifugation at 17 860g for 20 min at 4 °C. Aliquots of the supernatants containing 5-20 μg of protein are subjected to SDS-PAGE under reducing conditions. The proteins are then transferred onto PVDF membranes, blocked with TBS containing 0.05% Tween-20 and either 5% skim milk or 5% BSA. The membranes are probed with the following antibodies: anti-c-Met polyclonal antibody (C-28) and anti-VEGFR-2 polyclonal antibody (C-20); mouse anti-phosphotyrosine clone 4G10; and anti-VEGFR-2 polyclonal antibody, anti-phospho-VEGFR-2 (Tyr996) polyclonal antibody, and anti-phospho-c-Met (Tyr1234/1235) polyclonal antibody. Detection is performed using a Super Signal enhanced chemiluminescence kit. Immunoreactive bands are visualized by chemiluminescence with an Image Master-VDS-CL detection system. The intensity of each band is measured by using an image analyzer. |
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| Cell Research:[1] |
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| Animal Research:[1] |
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Solubility (25°C)
| In vitro | DMSO | 20 mg/mL (31.56 mM) |
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| Water | Insoluble | |
| Ethanol | Insoluble | |
| In vivo | Add solvents to the product individually and in order(Data is from Selleck tests instead of citations): 30% propylene glycol, 5% Tween 80, 65% D5W For best results, use promptly after mixing. |
30 mg/mL |
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Chemical Information
| Molecular Weight | 633.69 |
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| Formula | C33H37F2N7O4 |
| CAS No. | 928037-13-2 |
| Storage | powder |
| in solvent | |
| Synonyms | N/A |
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Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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