GNE-317 |
| Catalog No.GC17338 |
potent, brain-penetrant PI3K inhibitor
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 1394076-92-6
Sample solution is provided at 25 µL, 10mM.
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GNE-317 is a potent inhibitor of PI3K [1].
Phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K) are a series of enzymes and play an important role in cell growth, proliferation, differentiation, survival, motility and intracellular trafficking.
In the GL261 cell line, GNE-317 showed cytotoxic activity [2].
In mouse brain, GNE-317(50 mg/kg) significantly inhibited pAkt, p4EBP1 and pS6 by 80%, 84%, and 92% respectively, which were downstream markers of the PI3K/mTOR pathway. In U87, GS2 and GBM10 tumor-bearing mice, GNE-317 inhibited tumor growth by 90%, 50% and a survival benefit, respectively [1]. In C57B6/J mice inoculated with GL261-GFP-Luc cells, the concentrations of GNE-317 in the normal brain, tumor core and rim were not significantly different. In tumor-bearing mice, GNE-317 significantly reduced the levels of p-AktSer473, p-S6Ser235/236 and p-4EBP1Thr37/46 within the tumor [2]. In U87 and GS2 glioblastoma multiforme (GBM) models, GNE-317 was uniformly distributed in the brain. The brain-to-plasma ratios for GNE-317 were greater than 1, in agreement with the brain penetration properties of GNE-317 [3].
References:
[1]. Salphati L, Heffron TP, Alicke B, et al. Targeting the PI3K pathway in the brain--efficacy of a PI3K inhibitor optimized to cross the blood-brain barrier. Clin Cancer Res, 2012, 18(22): 6239-6248.
[2]. Becker CM, Oberoi RK, McFarren SJ, et al. Decreased affinity for efflux transporters increases brain penetrance and molecular targeting of a PI3K/mTOR inhibitor in a mouse model of glioblastoma. Neuro Oncol, 2015, pii: nov081.
[3]. Salphati L, Shahidi-Latham S, Quiason C, et al. Distribution of the phosphatidylinositol 3-kinase inhibitors Pictilisib (GDC-0941) and GNE-317 in U87 and GS2 intracranial glioblastoma models-assessment by matrix-assisted laser desorption ionization imaging. Drug Metab Dispos, 2014, 42(7): 1110-1116.
Cell experiment: | GL261 is an aggressive C57BL/6J-derived glioma line. This cell line is transfected with both green fluorescent protein (GFP) and luciferase (Luc) from separate plasmids. The resultant monoclonal GL261-GFP-Luc cells are maintained in Dulbecco's modified Eagle's medium supplemented with 10% FBS and Penicillin/Streptomycin (100 U/mL) and cultured at 5% oxygen. Cell selection used 4 mg/mL Puromycin and 4 mg/mL G418. Cellular viability assays are set up in a 96-well format with 2000 cells plated per well in the culture conditions. Cells are incubated in the presence of drug or vehicle for 48 hours, and viability was assessed by MTS assay. Absorbance at 490 nm is used to determine viability and at 650 nm to account for background using a Synergy Mx automated plate reader. Numerical values from drug-treated wells are normalized to the values of vehicle-treated wells to yield percent survival[1]. |
Animal experiment: | Mice[1] GL261-GFP-Luc cells are implanted into 7-week-old C57BL/6J mice. When tumors reach 5e7 photons/s/cm2/sr (radiance), animals are orally administered the maximum tolerated dose of GDC-0980 (7.5 mg/kg), GNE-317 (30 mg/kg) or vehicle once a day for 3 days. The maximum tolerated doses are defined as the greatest dose that could be administered to mice with <10% drop in bodyweight. Even at these different doses, both doses provide similar plasma concentrations and thus the same overall systemic exposure. At 1 or 6 hours after the third dose, mice are euthanized with carbon dioxide and perfused with 30 mL PBS. With the aid of GFP goggles, brains are dissected into tumor core, tumor rim, and normal brain tissue. Tissue samples and blood are processed, and tissue specimens from each group are analyzed for drug concentrations using LC-MS/MS. |
References: [1]. Salphati L, et al. Distribution of the phosphatidylinositol 3-kinase inhibitors Pictilisib (GDC-0941) and GNE-317 in U87 and GS2 intracranial glioblastoma models-assessment by matrix-assisted laser desorption ionization imaging. Drug Metab Dispos. 2014 Jul;42(7):1110-6. | |
| Cas No. | 1394076-92-6 | SDF | |
| Chemical Name | 5-(6-(3-methoxyoxetan-3-yl)-7-methyl-4-morpholinothieno[3,2-d]pyrimidin-2-yl)pyrimidin-2-amine | ||
| Canonical SMILES | COC1(COC1)C2=C(C)C3=C(S2)C(N4CCOCC4)=NC(C5=CN=C(N)N=C5)=N3 | ||
| Formula | C19H22N6O3S | M.Wt | 414.48 |
| Solubility | Soluble in DMSO | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
|
1 mg | 5 mg | 10 mg |
| 1 mM | 2.4127 mL | 12.0633 mL | 24.1266 mL |
| 5 mM | 0.4825 mL | 2.4127 mL | 4.8253 mL |
| 10 mM | 0.2413 mL | 1.2063 mL | 2.4127 mL |
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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
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- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
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Average Rating: 5 (Based on Reviews and 11 reference(s) in Google Scholar.)
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