NVP-BVU972

Catalog No.S2761 Batch:S276101

Technical Data

Formula	C₂₀H₁₆N₆
Molecular Weight	340.38	CAS No.	1185763-69-2
Solubility (25°C)*	In vitro	DMSO	68 mg/mL (199.77 mM)
		Ethanol	68 mg/mL (199.77 mM)
		Water	Insoluble
* <1 mg/ml means slightly soluble or insoluble. * 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. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description

NVP-BVU972 is a selective and potent Met (c-Met) inhibitor with IC50 of 14 nM.

Targets

Met ^[1]

14 nM

In vitro

NVP-BVU972 potently inhibits MET kinase but displays low inhibition against other kinases including the most closely related kinase RON with IC50 values of more than 1000 nM. NVP-BVU972 also suppresses constitutive MET phosphorylation in GTL-16 cells or HGF-stimulated MET phosphorylation in A549 cells with IC50 values of 7.3 nM and 22 nM, respectively. NVP-BVU972 potently prevents the growth of the MET gene amplified cell lines GTL-16, MKN-45 and EBC-1 with IC50 values of 66 nM, 82 nM and 32 nM, respectively. In line with their high frequency in the NVP-BVU972 screen, Y1230 and D1228 mutations give rise to dramatic shifts in the measured IC50 values for NVP-BVU972 in BaF3 cell line. Resistance triggered by V1155L is more limited to NVP-BVU972. A dose-dependent reduction in TPR-MET phosphorylation when applying NVP-BVU972 to BaF3 cells expressing wild-type TPR-MET. Both Y1230H and D1228A mutations abrogated the effect of NVP-BVU972 but not AMG 458. However, F1200I and L1195V interferes with the potency of NVP-BVU972 to prevent TPR-MET phosphorylation.^[1]

Protocol (from reference)

Kinase Assay:^{^[1]}	TR-FRET biochemical assay with MET wild type and mutants Enzyme activity is measured in a time resolved fluorescence resonance energy transfer (TR-FRET) assay, detecting tyrosine phosphorylation with a Eu-labelled anti-phospho-tyrosine antibody (fluorescence donor) and Allophycocyanin conjugated to Streptavidin (fluorescence acceptor) which binds to a biotin on the substrate peptide. For each variant, K_m concentrations for ATP are determined in the absence of NVP-BVU972, and the ATP concentration in the kinase reaction is set to K_m (4 μM for MET wt, 1 μM for MET Y1230H and MET F1200I). NVP-BVU972 is dissolved and diluted in DMSO and assayed in quadruplicate. Kinase reactions are carried out in 50 mM Tris-HCl pH 7.5, 8 mM MgCl₂, 4 mM MnCl₂, 0.05 % Tween 20, 0.05% bovine serum albumin, 0.1 mM EDTA, 1 mM DTT, 0.1 mM Na₃VO₄, in white 1536 well plates at room temperature. NVP-BVU972 and enzyme are incubated in a volume of 2 μL for 20 min, followed by the addition of 1 μL ATP and 1 μL biotinylated peptide substrate (PTK1) to final concentrations of K_m and 1 μM, respectively. Enzyme concentrations in the reactions are 5 nM for MET wt, and 4 nM for the F1200I and Y1230H variants. After 90 min, reactions are stopped by addition of 1 μL stop/detection solution to reach final concentrations of 10 mM EDTA, 3.5 nM Eu-labelled antiphospho-tyrosine antibody PY20, and 10 nM Streptavidin Allophycocyanin. Time resolved fluorescence resonance energy transfer is measured in an Envision plate reader (excitation 320 nm, emission 615 nm and 665 nm).
Cell Assay:^{^[1]}	Cell lines BaF3 cells Concentrations 0.6-9.6 μM Incubation Time 72 hours Method BaF3 cells containing TPR-MET or various mutants thereof are grown in RPMI 1640 medium containing 10% fetal calf serum. For maintenance of parental BaF3 cells the medium is additionally supplemented with 10 ng/mL interleukin-3 (IL-3). For proliferation assays, BaF3 cells are seeded on 96-well-plates in triplicates at 10⁴ cells per well and incubated with various concentrations of NVP-BVU972 for 72 hours followed by quantification of viable cells using a resazurin sodium salt dye reduction readout. IC50 values are determined with the XLFit Excel Add-In using a 4-parameter dose response model.

Kinase Assay:^{^[1]}

TR-FRET biochemical assay with MET wild type and mutants
Enzyme activity is measured in a time resolved fluorescence resonance energy transfer (TR-FRET) assay, detecting tyrosine phosphorylation with a Eu-labelled anti-phospho-tyrosine antibody (fluorescence donor) and Allophycocyanin conjugated to Streptavidin (fluorescence acceptor) which binds to a biotin on the substrate peptide. For each variant, K_m concentrations for ATP are determined in the absence of NVP-BVU972, and the ATP concentration in the kinase reaction is set to K_m (4 μM for MET wt, 1 μM for MET Y1230H and MET F1200I). NVP-BVU972 is dissolved and diluted in DMSO and assayed in quadruplicate. Kinase reactions are carried out in 50 mM Tris-HCl pH 7.5, 8 mM MgCl₂, 4 mM MnCl₂, 0.05 % Tween 20, 0.05% bovine serum albumin, 0.1 mM EDTA, 1 mM DTT, 0.1 mM Na₃VO₄, in white 1536 well plates at room temperature. NVP-BVU972 and enzyme are incubated in a volume of 2 μL for 20 min, followed by the addition of 1 μL ATP and 1 μL biotinylated peptide substrate (PTK1) to final concentrations of K_m and 1 μM, respectively. Enzyme concentrations in the reactions are 5 nM for MET wt, and 4 nM for the F1200I and Y1230H variants. After 90 min, reactions are stopped by addition of 1 μL stop/detection solution to reach final concentrations of 10 mM EDTA, 3.5 nM Eu-labelled antiphospho-tyrosine antibody PY20, and 10 nM Streptavidin Allophycocyanin. Time resolved fluorescence resonance energy transfer is measured in an Envision plate reader (excitation 320 nm, emission 615 nm and 665 nm).

Cell Assay:^{^[1]}

Cell lines
BaF3 cells
Concentrations
0.6-9.6 μM
Incubation Time
72 hours
Method
BaF3 cells containing TPR-MET or various mutants thereof are grown in RPMI 1640 medium containing 10% fetal calf serum. For maintenance of parental BaF3 cells the medium is additionally supplemented with 10 ng/mL interleukin-3 (IL-3). For proliferation assays, BaF3 cells are seeded on 96-well-plates in triplicates at 10⁴ cells per well and incubated with various concentrations of NVP-BVU972 for 72 hours followed by quantification of viable cells using a resazurin sodium salt dye reduction readout. IC50 values are determined with the XLFit Excel Add-In using a 4-parameter dose response model.

References

[1] Tiedt R, et al. Cancer Res. 2011, 71(15), 5255-5264.

Selleck's NVP-BVU972 has been cited by 1 publication

A chemical screen for modulators of mRNA translation identifies a distinct mechanism of toxicity for sphingosine kinase inhibitors [ PLoS Biol, 2021, 19(5):e3001263]	PubMed: 34033645

A chemical screen for modulators of mRNA translation identifies a distinct mechanism of toxicity for sphingosine kinase inhibitors [ PLoS Biol, 2021, 19(5):e3001263]

PubMed: 34033645

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