1. Protein Tyrosine Kinase/RTK
  2. VEGFR
    c-Met/HGFR
  3. TAS-115

TAS-115 

Cat. No.: HY-12423
Handling Instructions

TAS-115 is a potent VEGFR and hepatocyte growth factor receptor (c-Met/HGFR)-targeted kinase inhibitor with IC50s of 30 and 32 nM for rVEGFR2 and rMET, respectively.

For research use only. We do not sell to patients.

TAS-115 Chemical Structure

TAS-115 Chemical Structure

CAS No. : 1190836-34-0

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Description

TAS-115 is a potent VEGFR and hepatocyte growth factor receptor (c-Met/HGFR)-targeted kinase inhibitor with IC50s of 30 and 32 nM for rVEGFR2 and rMET, respectively.

IC50 & Target[1]

VEGFR2

30 nM (IC50)

c-Met

32 nM (IC50)

In Vitro

TAS-115 is ATP antagonism with inhibition constant (Ki) values against rVEGFR2 and rMET of 12 and 39 nM, respectively. AS-115 inhibits the kinase activity of both VEGFR2 and MET and their signal-dependent cell growth as strongly as other known VEGFR or MET inhibitors. TAS-115 induces less damage in various normal cells than do other VEGFR inhibitors[1]. TAS-115 does not affect the growth of PC-9 or HCC827 cells at concentrations less than 10 μM; however, the combined use of TAS-115 with erlotinib reverses HGF-induced resistance in the cell lines in a concentration-dependent manner. TAS-115 inhibits VEGF production by cancer cells and endothelial proliferation[2].

In Vivo

TAS-115 (50 mg/kg/d) completely prevents tumor growth during the treatment period. TAS-115 (200 mg/kg/d) induces a 48% regression from the initial tumor volume in MET-amplified human cancer transplanted models. The estimated 50% effective dose (ED50) of TAS-115 in this model is 8 mg/kg/d. TAS-115 significantly prolongs survival of these mice when administered at doses of 50 or 200 mg/kg/d[1]. TAS-115 inhibits angiogenesis in PC-9/HGF tumors in vivo. Moreover, the doublet erlotinib and TAS-115 successfully inhibit PC-9/HGF tumor growth and delay tumor regrowth associated with sustained tumor vasculature inhibition even after cessation of the treatment[2].

Molecular Weight

518.56

Formula

C₂₇H₂₃FN₄O₄S

CAS No.

1190836-34-0

SMILES

O=C(C1=C(OC)C=C2N=CC=C(OC3=CC=C(NC(NC(CC4=CC=CC=C4)=O)=S)C=C3F)C2=C1)NC

Shipping

Room temperature in continental US; may vary elsewhere

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

References
Kinase Assay
[1]

Enzyme inhibition studies are performed using a mobility shift assay. Briefly, 0.3 μg/mL of recombinant MET (rMET, N-terminal glutathione S-transferase (GST) Tag) and 1.5 μM of FL-Peptide 2 or 2 μg/mL of recombinant VEGFR2 (rVEGFR2, amino acid 790-end, N-terminal 6His Tagged) and 1.5 μM of FL-Peptide 22 are added to a 25 μL mixture containing 1/2 the Michaelis constant (Km) level of ATP, 100 mM of HEPES (pH 7.2), 0.003% (w/v) Brij35, 0.04% (v/v) Tween 20, 10 mM of MgCl2, 1 mM of dithiothreitol, a Complete Mini EDTA-free Protease Inhibitor Cocktail Tablet, and a PhosSTOP Phosphatase Inhibitor Cocktail Tablet, with the addition of 0.05% (w/v) CHAPSO only in the case of rVEGFR2. The reaction mixture is incubated for 90 minutes at 28°C and is stopped by the addition of 15 mM of EDTA. Phosphorylated peptide is calculated using a LabChip EZ Reader, Version 2.1.82.0 (UCC Version: 1.96, CCD Version: 102). On the basis of the amount of phosphorylated peptide formed in the control well and the drug-treated well, the 50% inhibitory concentration (IC50) is calculated using a logistic regression analysis. A total of 192 kinase panel assays is performed using the ProfilerPro Kit 1-8 and is analyzed using a mobility shift assay.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Assay
[2]

Cell growth is measured using the MTT dye reduction method. Tumor cells are plated into 96-well plates at a density of 2×103 cells/100 mL RPMI-1640 medium with 10% FBS per well. After 24-hour incubation, various reagents are added to each well, and the cells incubated for a further 72 hours, followed by the addition of 50 μL of MTT solution (2 mg/mL) to each well and incubation for 2 hours. The media containing MTT solution is removed, and the dark blue crystals are dissolved by adding 100 mL of dimethyl sulfoxide. The absorbance of each well is measured with a microplate reader at test and reference wavelengths of 550 and 630 nm, respectively. The percentage of growth is shown relative to untreated controls. Each reagent concentration is tested at least in triplicate during each experiment, and each experiment is conducted at least three times.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Administration
[1]

A SC-9 fragment is implanted subcutaneously into the right abdomen of each mouse via a trocar. Suspensions of MKN45 cells are prepared and are implanted subcutaneously into the right abdomen of each nude mouse. The tumor volume (TV, mm3) is calculated. The TAS-115 dose levels are set at 12.5, 50, and 200 mg/kg/d. The dose level for sunitinib is set at 40 mg/kg/d; this dose is equivalent to the maximum tolerated dose (MTD). Oral drug treatment is continued for 14 or 42 consecutive days for the chronic dosing in the SC-9 xenograft model. During the treatment period, TV and body weight are measured twice per week.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References
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