GSK1838705A
Based on 8 publication(s) in Google Scholar
GSK1838705A is a potent and reversible IGF-IR and the insulin receptor inhibitor with IC50s of 2.0 and 1.6 nM, respectively. It also inhibits ALK with an IC50 of 0.5 nM.
For research use only. We do not sell to patients.
- Purity: 99.58%
- CAS No.: 1116235-97-2
- Formula: C27H29FN8O3
- Molecular Weight:532.57
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Protocol
- Purity & Documentation
- References
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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) GSK1838705A
More- Nat Commun. 2021 Jul 16;12(1):4360. [Abstract]
- Sci Transl Med. 2018 Jul 18;10(450):eaaq1093. [Abstract]
- Aquaculture. 2025 Aug 15.
- ACS Chem Biol. 2017 May 19;12(5):1245-1256. [Abstract]
- Fundam Clin Pharmacol. 2020 Oct;34(5):571-580. [Abstract]
- Biochem Biophys Res Commun. 2018 Sep 3;503(1):71-78. [Abstract]
- bioRxiv. 2023 May 14.
- Patent. US20180263995A1.
Biological Activity
IC50: 2.0 nM (IGF-IR), 1.6 nM (insulin receptor), 0.5 nM (ALK)[1]
In cellular phosphorylation assays, GSK1838705A potently inhibits IGF-IR and insulin receptor phosphorylation with IC50s of 85 and 79 nM, respectively. appKi values are 0.7 nM for IGF-IR and 1.1 nM for insulin receptor using the filter binding assay. GSK1838705A inhibits the proliferation in a panel of cell lines derived from solid and hematologic tumors. The EC50s of GSK1838705A range from 20 nM to >8 μM, but are <1 μM in most multiple myeloma and Ewing's sarcoma cell lines[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1116235-97-2
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Appearance Solid
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Molecular Weight 532.57
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Formula C27H29FN8O3
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Color Light yellow to yellow
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SMILES
FC1=C(C(NC)=O)C(NC2=C3C(NC=C3)=NC(NC4=CC5=C(CCN5C(CN(C)C)=O)C=C4OC)=N2)=CC=C1
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Publications (8)
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Journal Impact Factor
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Most Recent
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Nat Commun
Glucocorticoid receptor triggers a reversible drug-tolerant dormancy state with acquired therapeutic vulnerabilities in lung cancer. [Abstract]2021 Jul 16;12(1):4360. PMID: 34272384 -
Sci Transl Med
PP2A inhibition is a druggable MEK inhibitor resistance mechanism in KRAS-mutant lung cancer cells. [Abstract]2018 Jul 18;10(450):eaaq1093. PMID: 30021885 -
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ACS Chem Biol
A Chemical Probe Strategy for Interrogating Inhibitor Selectivity Across the MEK Kinase Family. [Abstract]2017 May 19;12(5):1245-1256. PMID: 28263556 -
Fundam Clin Pharmacol
Urolithin C increases glucose-induced ERK activation which contributes to insulin secretion. [Abstract]2020 Oct;34(5):571-580. PMID: 32083757 -
Biochem Biophys Res Commun
T2DM inhibition of endothelial miR-342-3p facilitates angiogenic dysfunction via repression of FGF11 signaling. [Abstract]2018 Sep 3;503(1):71-78. PMID: 29852165 -
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Solvent & Solubility
DMSO : ≥ 100 mg/mL (187.77 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
* "≥" means soluble, but saturation unknown.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: 3 mg/mL (5.63 mM); Suspended solution; Need ultrasonic
This protocol yields a suspended solution of 3 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (30.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Protocol
Baculovirus-expressed glutathione S-transferase–tagged proteins encoding the intracellular domain of IGF-IR (amino acids 957–1367) and IR (amino acids 979–1382) are used for determinations of IC50s by a homogeneous time-resolved fluorescence assay. A filter binding assay is used for appKi determinations using activated IGF-IR and IR kinases. Expanded kinase-selectivity profiling of GSK1838705A is carried out by screening the compound in the KinaseProfiler panel[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Cells are seeded in 96-well dishes, incubated overnight at 37°C, and treated with DMSO or GSK1838705A for 72 h. For the NIH-3T3/LISN proliferation assays, cells are seeded on collagen-coated 96-well tissue culture plates and allowed to adhere for 24 h. The medium is replaced with serum-free medium and the cells are treated with GSK1838705A for 2 h. Cells are incubated for 72 h after addition of IGF-I (30 ng/mL). Cell proliferation is quantified using the CellTiter-Glo Luminescent Cell Viability Assay. IC50s are determined from cytotoxicity curves using a four-parameter curve fit software package[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Mice: Exponentially growing cells are implanted s.c. into the right flank of 8- to 12-wk-old female nu/nu CD-1 or SCID mice. Mice are dosed p.o. with the formulating vehicle or GSK1838705A. Mice are weighed and tumors measured by calipers twice weekly. Tumor volumes are calculated[1]
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (283 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 1.8777 mL | 9.3884 mL | 18.7769 mL | 46.9422 mL |
| 5 mM | 0.3755 mL | 1.8777 mL | 3.7554 mL | 9.3884 mL | |
| 10 mM | 0.1878 mL | 0.9388 mL | 1.8777 mL | 4.6942 mL | |
| 15 mM | 0.1252 mL | 0.6259 mL | 1.2518 mL | 3.1295 mL | |
| 20 mM | 0.0939 mL | 0.4694 mL | 0.9388 mL | 2.3471 mL | |
| 25 mM | 0.0751 mL | 0.3755 mL | 0.7511 mL | 1.8777 mL | |
| 30 mM | 0.0626 mL | 0.3129 mL | 0.6259 mL | 1.5647 mL | |
| 40 mM | 0.0469 mL | 0.2347 mL | 0.4694 mL | 1.1736 mL | |
| 50 mM | 0.0376 mL | 0.1878 mL | 0.3755 mL | 0.9388 mL | |
| 60 mM | 0.0313 mL | 0.1565 mL | 0.3129 mL | 0.7824 mL | |
| 80 mM | 0.0235 mL | 0.1174 mL | 0.2347 mL | 0.5868 mL | |
| 100 mM | 0.0188 mL | 0.0939 mL | 0.1878 mL | 0.4694 mL |
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