GNE-493

Pan-PI3K/mTOR inhibitor CAS# 1033735-94-2

GNE-493

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GNE-493

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Chemical Properties of GNE-493

Cas No. 1033735-94-2 SDF Download SDF
PubChem ID 25242324 Appearance Powder
Formula C17H20N6O2S M.Wt 372.44
Type of Compound N/A Storage Desiccate at -20°C
Solubility DMSO : ≥ 45 mg/mL (120.82 mM)
*"≥" means soluble, but saturation unknown.
Chemical Name 2-[2-(2-aminopyrimidin-5-yl)-4-morpholin-4-ylthieno[3,2-d]pyrimidin-6-yl]propan-2-ol
SMILES CC(C)(C1=CC2=C(S1)C(=NC(=N2)C3=CN=C(N=C3)N)N4CCOCC4)O
Standard InChIKey LEXMMFPAPDGYGZ-UHFFFAOYSA-N
Standard InChI InChI=1S/C17H20N6O2S/c1-17(2,24)12-7-11-13(26-12)15(23-3-5-25-6-4-23)22-14(21-11)10-8-19-16(18)20-9-10/h7-9,24H,3-6H2,1-2H3,(H2,18,19,20)
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of GNE-493

DescriptionGNE-493 is a potent, selective, and orally available dual pan-PI3-kinase/mTOR inhibitor with IC50s of 3.4 nM, 12 nM, 16 nM, 16 nM and 32 nM for PI3Kα, PI3Kβ, PI3Kδ, PI3Kγ and mTOR.In Vitro:GNE-493 is a low molecular weight, potent dual inhibitor of pan-PI3 kinases and mTOR. GNE-493 displays approximately equipotent inhibition of Class I PI3K isoforms, is submitted for screening in a 142 kinase panel provided by Invitrogen’s SelectScreen service. Of these kinases, only three are subject to greater than 50% inhibition by GNE-493, and none are inhibited greater than 80% when tested at 1 μM. Subsequently measured IC50s demonstrated that GNE-493 is more than 100-fold selective for PI3Kα over these three unrelated kinases (Aurora A IC50>10 μM, MLK1 IC50=591 nM and SYK IC50=371 nM)[1].In Vivo:To confirm and compare in vivo efficacy, GNE-493 is examined in the human MCF7.1 breast cancer xenograft model that harbors a PI3Kα activating mutation. Mice bearing xenografts are dosed orally once daily with 10 mg/kg of GNE-493 for 21 continuous days. Similar to observations made in the PC3 prostate cancer xenograft model, 10 mg/kg of GNE-493 results in 73% tumor growth inhibition at day 21 when compared to vehicle control animals. When achieving comparable levels of drug exposure, GNE-493 shows a similar suppression of the PI3K pathway and consequently, a similar efficacy profile against MCF7.1 breast tumors[1].

References:
[1]. Sutherlin DP, et al. Discovery of (thienopyrimidin-2-yl)aminopyrimidines as potent, selective, and orally available pan-PI3-kinase and dual pan-PI3-kinase/mTOR inhibitors for the treatment of cancer. J Med Chem. 2010 Feb 11;53(3):1086-97.

Protocol

Kinase Assay [1]
Enzymatic activity of the Class I PI3K isoforms is measured using a fluorescence polarization assay that monitors formation of the product 3,4,5-inositoltriphosphate molecule as it competes with fluorescently labeled PIP3 for binding to the GRP-1 pleckstrin homology domain protein. An increase in phosphatidyl inositide-3-phosphate product results in a decrease in fluorescence polarization signal as the labeled fluorophore is displaced from the GRP-1 protein binding site. Class I PI3K isoforms are expressed and purified as heterodimeric recombinant proteins. Tetramethylrhodamine-labeled PIP3 (TAMRA-PIP3), di-C8-PIP2, and PIP3 detection reagents are used. PI3K isoforms are assayed under initial rate conditions in the presence of 10 mM Tris (pH 7.5), 25 μM ATP, 9.75 μM PIP2, 5% glycerol, 4 mM MgCl2, 50 mM NaCl, 0.05% (v/v) Chaps, 1 mM dithiothreitol, 2% (v/v) DMSO at the following concentrations for each isoform: PI3Kα, PI3β at 60 ng/mL; PI3Kγ at 8 ng/mL; PI3Kδ at 45 ng/mL. After assay for 30 min at 25°C, reactions are terminated with a final concentration of 9 mM EDTA, 4.5 nM TAMRA-PIP3, and 4.2 μg/mL GRP-1 detector protein before reading fluorescence polarization on an Envision plate reader. IC50s are calculated from the fit of the dose−response curves to a 4-parameter equation[1].

Animal Administration [1]
Mice[1] Human prostate cancer PC3 cells are resuspended in Hank’s Balanced Salt Solution and 3×106 cells implanted subcutaneously into the right hind flank of athymic nu/nu (nude) mice. Tumors are monitored until they reached a mean tumor volume of 150-200 mm3 prior to the initiation of dosing. MCF7.1 cells resuspended in a 1:1 mixture of Hank’s Buffered Salt Solution and Matrigel Basement Membrane Matrix, were 5×106 subcutaneously implanted into the right hind flank of athymic nu/nu (nude) mice. Prior to cell inoculation, 17 β-estradiol (0.36 mg/pellet, 60-day release) are implanted into the dorsal shoulder blade area of each nude mouse. After implantation of cells, tumors are monitored until they reached a mean tumor volume of 250-350 mm3 prior to initiating dosing. Female nude (nu/nu) mice that are 6-8 weeks old and weighed 20-30 g are used. Tumor bearing mice are dosed orally daily with 10 mg/kg of GNE-493 for 14 continuous days. Tumor volume is measured in two dimensions (length and width) and is analyzed using Excel version 11.2. Animal body weights are measured. Tumor sizes are recorded twice weekly over the course of the study (14-21 days)

References:
[1]. Sutherlin DP, et al. Discovery of (thienopyrimidin-2-yl)aminopyrimidines as potent, selective, and orally available pan-PI3-kinase and dual pan-PI3-kinase/mTOR inhibitors for the treatment of cancer. J Med Chem. 2010 Feb 11;53(3):1086-97.

GNE-493 Dilution Calculator

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Preparing Stock Solutions of GNE-493

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.685 mL 13.425 mL 26.85 mL 53.6999 mL 67.1249 mL
5 mM 0.537 mL 2.685 mL 5.37 mL 10.74 mL 13.425 mL
10 mM 0.2685 mL 1.3425 mL 2.685 mL 5.37 mL 6.7125 mL
50 mM 0.0537 mL 0.2685 mL 0.537 mL 1.074 mL 1.3425 mL
100 mM 0.0268 mL 0.1342 mL 0.2685 mL 0.537 mL 0.6712 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on GNE-493

GNE-493 is a potent, selective, and orally available dual pan-PI3K/mTOR inhibitor with IC50s of 3.4/12/16/16/32 nM for PI3Kα/PI3Kβ/PI3Kγ/PI3Kδ/mTOR respectively.

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References on GNE-493

Integrated Genomic, Epigenomic, and Expression Analyses of Ovarian Cancer Cell Lines.[Pubmed:30485824]

Cell Rep. 2018 Nov 27;25(9):2617-2633.

To improve our understanding of ovarian cancer, we performed genome-wide analyses of 45 ovarian cancer cell lines. Given the challenges of genomic analyses of tumors without matched normal samples, we developed approaches for detection of somatic sequence and structural changes and integrated these with epigenetic and expression alterations. Alterations not previously implicated in ovarian cancer included amplification or overexpression of ASXL1 and H3F3B, deletion or underexpression of CDC73 and TGF-beta receptor pathway members, and rearrangements of YAP1-MAML2 and IKZF2-ERBB4. Dose-response analyses to targeted therapies revealed unique molecular dependencies, including increased sensitivity of tumors with PIK3CA and PPP2R1A alterations to PI3K inhibitor GNE-493, MYC amplifications to PARP inhibitor BMN673, and SMAD3/4 alterations to MEK inhibitor MEK162. Genome-wide rearrangements provided an improved measure of sensitivity to PARP inhibition. This study provides a comprehensive and broadly accessible resource of molecular information for the development of therapeutic avenues in ovarian cancer.

Discovery of (thienopyrimidin-2-yl)aminopyrimidines as potent, selective, and orally available pan-PI3-kinase and dual pan-PI3-kinase/mTOR inhibitors for the treatment of cancer.[Pubmed:20050669]

J Med Chem. 2010 Feb 11;53(3):1086-97.

The PI3K/AKT/mTOR pathway has been shown to play an important role in cancer. Starting with compounds 1 and 2 (GDC-0941) as templates, (thienopyrimidin-2-yl)aminopyrimidines were discovered as potent inhibitors of PI3K or both PI3K and mTOR. Structural information derived from PI3K gamma-ligand cocrystal structures of 1 and 2 were used to design inhibitors that maintained potency for PI3K yet improved metabolic stability and oral bioavailability relative to 1. The addition of a single methyl group to the optimized 5 resulted in 21, which had significantly reduced potency for mTOR. The lead compounds 5 (GNE-493) and 21 (GNE-490) have good pharmacokinetic (PK) parameters, are highly selective, demonstrate knock down of pathway markers in vivo, and are efficacious in xenograft models where the PI3K pathway is deregulated. Both compounds were compared in a PI3K alpha mutated MCF7.1 xenograft model and were found to have equivalent efficacy when normalized for exposure.

Description

GNE-493 is a potent, selective, and orally available dual pan-PI3-kinase/mTOR inhibitor with IC50s of 3.4 nM, 12 nM, 16 nM, 16 nM and 32 nM for PI3Kα, PI3Kβ, PI3Kδ, PI3Kγ and mTOR.

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