As48
Based on 1 Customer Validation
As48 is a selective TREM2 agonist with a KD value of 12.48 μM in TRIC binding assay. As48 binds near the TREM2 cleavage region, forms hydrogen bonds with Gly68, reduces conformational flexibility in regions 58-102, restricts protease accessibility to the cleavage site. As48 activates SYK phosphorylation, enhances microglial phagocytosis, and induces downstream calcium signaling in TREM2-expressing cells. As48 inhibits TREM2 ectodomain shedding without affecting ADAM10/17 protease activities. As48 can be used for the research of Alzheimer's disease.
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- Pureté : 97.52%
- CAS No.: 1214405-38-5
- Formule: C20H15N3OS
- Masse moléculaire:345.42
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Stockage:
4°C, sealed storage, away from moisture and light
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
Activité biologique
Description
IC50 & Target
[1]|
TREM-2 12.48 μM (Kd) |
In Vitro
As48 (0.1-1000 μM; 10 min) binds directly to recombinant human TREM2 protein with a K0 of 12.48 μM, as measured by TRIC binding assay[1].
As48 (0.01-100 μM; 10 min) binds to recombinant human TREM2 with a KD of 13.8 μM, and binds 7-fold more weakly to recombinant human TREM1 (KD = 97.92 μM), as measured by MST binding assay[1].
As48 (30 μM; 20 min) increases the thermal stability of recombinant human TREM2 protein by +3.86°C, as measured by thermal shift assay[1].
As48 (1.23-100 μM) binds directly to biotinylated recombinant human TREM2 protein with a KD of 29.5 μM, as measured by SPR binding assay[1].
As48 (0-300 μM; overnight) exhibits minimal cytotoxicity in HMC3 human microglial cells, with no significant viability loss at concentrations up to 100 μM, as measured by MTS assay[1].
As48 (5-100 μM; 5-60 min) activates TREM2 signaling in HEK293-hTREM2/DAP12 cells by inducing dose- and time-dependent SYK phosphorylation[1].
As48 (0.3-30 μM; 10 min) induces TREM2-dependent intracellular calcium mobilization in HEK293-hTREM2/DAP12 cells[1].
As48 (0.3-30 μM; 0-120 min) activates TREM2 signaling in HMC3 TREM2 OE human microglial cells by inducing dose- and time-dependent SYK phosphorylation[1].
As48 (25 μM; 30 min) enhances phagocytic activity in BV2 murine microglial cells by twofold compared to vehicle control, as measured by fluorescent latex bead uptake assay[1].
As48 (1-30 μM; 18 h) inhibits TREM2 ectodomain shedding in HEK293-TREM2 OE cells in vitro in a dose-dependent manner[1].
As48 (10-300 μM; 30 min) does not inhibit the proteolytic activity of recombinant human ADAM10 or ADAM17 at concentrations up to 300 μM, as measured by fluorogenic protease activity assay[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
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Cell Line:HMC3 human microglial cells
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Concentration:0, 3, 10, 30, 100, 300 μM
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Incubation Time:overnight
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Result:Showed no significant cytotoxicity at concentrations up to 100 μM; Showed ~20% reduction in cell viabilityat 300 μM.
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Cell Line:HMC3 human microglial cells stably overexpressing TREM2 (HMC3 TREM2 OE cells)
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Concentration:0.3, 1, 3, 10, 30 μM
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Incubation Time:5, 10, 30, 60, 120 min
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Result:Induced dose- and time-dependent SYK phosphorylation.
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Cell Line:HEK293 cells stably overexpressing TREM2 (HEK293-TREM2 OE cells)
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Concentration:1, 3, 10, 30 μM
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Incubation Time:18 h
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Result:Showed dose-dependent preservation of the TREM2 extracellular domain, with significant protection against shedding at concentrations above 10 μM and maximal effect at 30 μM.
Reduced soluble TREM2 levels in conditioned media to a magnitude comparable to GM6001(HY-15768) (30 μM) at 3 μM, with no effect on APP secretion.
Chemical Information
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CAS No. 1214405-38-5
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Appearance Solid
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Masse moléculaire 345.42
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Formule C20H15N3OS
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Color Light brown to gray
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SMILES
O=C(N1C2=C(CC1)C=C(C3=CN4C=CC=CC4=N3)C=C2)C5=CC=CS5
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
4°C, sealed storage, away from moisture and light
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
Solvant et solubilité
In Vitro:
DMSO : 1 mg/mL (2.90 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
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, 6 months; -20°C, 1 month (sealed storage, away from moisture and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
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, 6 months; -20°C, 1 month (sealed storage, away from moisture and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Protocole
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Kinase activity and phosphorylation assays
Kinase activity assays measure the ability of kinases to transfer phosphate groups from ATP to specific substrates, while phosphorylation assays detect the presence and levels of phosphorylated proteins. Common methods include radiolabeled ATP incorporation (e. g. ,), ADP release detection via bioluminescence (e. g. ,[3]), enzyme-linked immunosorbent assays (ELISA) for phospho-specific epitopes (e. g. ,[6]), and microtiter-based formats for high-throughput screening (e. g. ,[8]). The ADP-Glo assay quantifies kinase activity by measuring ADP produced during phosphorylation using a luciferase-based system. Radiometric assays involve autoradiography or scintillation counting after incorporation of 32P-labeled ATP into substrate proteins. ELISA-based approaches rely on phospho-specific antibodies to detect activated kinases in cell lysates or purified samples.
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Phagocytosis Functional Assay
A phagocytosis functional assay measures the ability of phagocytic cells, such as neutrophils, macrophages, monocytes, or microglia/macrophages, to bind and internalize particulate targets including bacteria, yeast particles, beads, or myelin particles. Fluorescent flow-cytometry assays detect target uptake as fluorescence associated with gated phagocytes, while pH-sensitive dyes such as pHrodo increase signal in acidic phagosomal compartments and therefore preferentially report internalized particles rather than particles remaining outside the cell. Microscopy or high-content imaging can be used to confirm intracellular localization and, in some protocols, to follow uptake kinetics.
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Western Blot
Western blotting (WB) is a commonly used experimental method in molecular biology, biochemistry, and immunogenetics for identifying and quantifying target proteins. It combines gel electrophoresis with immunoassay, enabling researchers to analyze protein expression, post-translational modifications, and molecular weight.
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Protocol for Kinase activity and phosphorylation assays
Kinase activity assays measure transfer of phosphate from ATP to a protein or peptide substrate, generating phosphorylated substrate, ADP, or incorporated radiolabeled phosphate as the readout; phosphorylation assays measure site-specific phosphorylation in cells or tissues as a proxy for kinase-pathway activation, inhibition, or substrate regulation. Phosphorylation can be detected by phospho-specific Western blot, immunoprecipitation kinase assay, phospho-immunofluorescence, phospho-flow cytometry, luminescent ADP detection, radiolabeled ATP incorporation, or reporter-based pathway assays, and these readouts can be applied to cancer cells, primary neurons, mouse tumors, organoids, inflammatory macrophages, ferroptosis studies, and mitophagy studies when the kinase target is biologically relevant.
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Alzheimer’s Disease Modeling
Alzheimer’s Disease (AD) is a neurodegenerative disorder characterized by a progressive decline in cognitive functions and loss of specific types of neurons and synapses. Alzheimer's symptoms can be simulated in mice by injecting drugs (such as Aβ) or genetically modified.
Pureté et documentation
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Fiche technique (277 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Instruction de manipulation (2659 KB)
Références
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, 6 months; -20°C, 1 month (sealed storage, away from moisture and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.8950 mL | 14.4751 mL | 28.9503 mL | 72.3757 mL |