AS2863619 free base
Based on 6 publication(s) in Google Scholar
AS2863619 free base is an orally active CDK8/19 inhibitor that also inhibits BMP2, MDA5 and RIG-I receptors. AS2863619 free base targets Stat5a-CDK8/19 to promote the differentiation of CD4+ T cells into regulatory T cells and induce FOXP3 expression, thereby restoring immune homeostasis and establishing transplant immune tolerance. AS2863619 free base also enhances the BMP2/SMAD signaling pathway to promote osteogenic differentiation and inhibit adipogenic differentiation. AS2863619 free base exerts osteoprotective effects by alleviating inflammation-induced impairment of osteogenic function and inducing neutrophil apoptosis (apoptosis). AS2863619 free base can be applied to research in related fields such as periodontitis-induced bone defects.
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- Purity: 99.67%
- CAS No.: 2241300-50-3
- 화학식: C16H12N8O
- 분자량:332.32
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보관: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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용액&용해도
- 순도&문서
- References
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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) AS2863619 free base
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Biological Activity
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CDK8 0.61 nM (IC50) |
CDK19 4.28 nM (IC50) |
GSK3α 76.67 nM (IC50) |
GSK3β 63.06 nM (IC50) |
STAT5 |
AS2863619 free base, combination with IL-2 and TGF-β, enhances the differentiation of primary CD4+ T cells isolated from the spleens of DBA/1 mice into Treg, and its efficacy is superior to that of the regimens using IL-2 alone combined with either TGF-β or AS2863619[1].
AS2863619 free base (125 nM-2 μM; 7-10 d) enhances osteogenic differentiation of human periodontal ligament stem cells, with concentrations of 250 nM and 500 nM increasing ALP activity, upregulating key osteogenic markers, and accelerating mineralized nodule formation on day 10[2].
AS2863619 free base (250 nM-500 nM; 7-21 d) inhibits adipogenic differentiation of human periodontal ligament stem cells by reducing lipid droplet formation and downregulating key adipogenic genes[2].
AS2863619 free base (250 nM-500 nM; 7-10 d) alleviates rhTNF-α-induced osteogenic differentiation impairment of human periodontal ligament stem cells by inhibiting the RIG-I/MDA5 receptor-mediated RLR signaling pathway, and the 500 nM concentration reverses the inflammatory impairment blocked by the RLR agonist Poly (I:C)[2].
Combination of AS2863619 free base (1 mM/mL; 5 d) with IL-2 and TGF-β1 induces transdifferentiation of allogeneic antigen-specific Balb/c CD4+ T cells into ag-Treg, while upregulating the expression of Treg-specific genes and enriching pathways associated with T cell tolerance induction[3].
AS2863619 free base (0.01-10 μM; 2 h) significantly increases the apoptosis level of human polymorphonuclear neutrophils (PMNs) stimulated by IC, with a value comparable to that of the negative control group, while it does not significantly reduce cell viability[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:Mouse CD4+ T cells
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Concentration:1 μM
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Incubation Time:22 hours
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Result:Suppressed serine phosphorylation of the PSP motif of STAT5b to ~40% while enhancing tyrosine phosphorylation in the C-terminal domain to ~160% of control-treated samples.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Mice with DNFB-induced contact skin hypersensitivity[1]
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Dosage:30 mg/kg
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Administration:Oral administration; daily; for 2 weeks
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Result:The degree of the secondary response, with milder infiltration of inflammatory cells into the skin and decreased ratios of interferon-γ+ (IFN-γ+) cells.
Chemical Information
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CAS No. 2241300-50-3
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Appearance Solid
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분자량 332.32
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화학식 C16H12N8O
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Color White to off-white
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SMILES
NC1=NON=C1C(N2C3=CC=C4N=C(C)NC4=C3)=NC5=C2C=CN=C5
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선적
Room temperature in continental US; may vary elsewhere.
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보관
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Publications (6)
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Journal Impact Factor
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Most Recent
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Cell Stem Cell
Human iPSC-derived CD4+ Treg-like cells engineered with chimeric antigen receptors control GvHD in a xenograft model. [Abstract]2024 Jun 6;31(6):795-802.e6. PMID: 38848686 -
Biomaterials
Engineered peripheral CD4 T cells delivery across the BBB promote intracerebral Treg conversion unleashes microglial phagocytotic activity for Alzheimer's disease treatment. [Abstract]2026 Feb:325:123574. PMID: 40763582 -
Elife
Sustained store-operated calcium entry utilizing activated chromatin state leads to instability in iTregs. [Abstract]2023 Dec 6:12:RP88874. PMID: 38055613 -
JCI Insight
CAR-engineered cytolytic Tregs reverse pulmonary fibrosis and remodel the fibrotic niche with limited CRS. [Abstract]2025 Jul 8;10(15):e182050. PMID: 40627450 -
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용액&용해도
DMSO : 250 mg/mL (752.29 mM; Need ultrasonic; 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, 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: ≥ 2.08 mg/mL (6.26 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.08 mg/mL (6.26 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
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.
순도&문서
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Data Sheet (289 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
References
[1]. Fang K, et al. Progress and Future Perspectives of Treg Cell Therapy. Front Biosci (Landmark Ed). 2025;30(11):41250. [Content Brief]
[2]. He H, et al. AS2863619 boosts osteogenesis in periodontal ligament stem cells and mitigates inflammatory impairment. Int Immunopharmacol. 2025;161:115101. [Content Brief]
[3]. Bulygin A, et al. Assessment and Characterization of Induced Alloantigen-Specific Regulatory T Cells Obtained by the Inhibition of CDK8/19 with the AS2863619 Compound. Int J Mol Sci. 2025;26(22):10957. Published 2025 Nov 12. [Content Brief]
[5]. Akamatsu M, et al. Conversion of antigen-specific effector/memory T cells into Foxp3-expressing Treg cells by inhibition of CDK8/19. Sci Immunol. 2019 Oct 25;4(40). pii: eaaw2707. [Content Brief]
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 | 3.0091 mL | 15.0457 mL | 30.0915 mL | 75.2287 mL |
| 5 mM | 0.6018 mL | 3.0091 mL | 6.0183 mL | 15.0457 mL | |
| 10 mM | 0.3009 mL | 1.5046 mL | 3.0091 mL | 7.5229 mL | |
| 15 mM | 0.2006 mL | 1.0030 mL | 2.0061 mL | 5.0152 mL | |
| 20 mM | 0.1505 mL | 0.7523 mL | 1.5046 mL | 3.7614 mL | |
| 25 mM | 0.1204 mL | 0.6018 mL | 1.2037 mL | 3.0091 mL | |
| 30 mM | 0.1003 mL | 0.5015 mL | 1.0030 mL | 2.5076 mL | |
| 40 mM | 0.0752 mL | 0.3761 mL | 0.7523 mL | 1.8807 mL | |
| 50 mM | 0.0602 mL | 0.3009 mL | 0.6018 mL | 1.5046 mL | |
| 60 mM | 0.0502 mL | 0.2508 mL | 0.5015 mL | 1.2538 mL | |
| 80 mM | 0.0376 mL | 0.1881 mL | 0.3761 mL | 0.9404 mL | |
| 100 mM | 0.0301 mL | 0.1505 mL | 0.3009 mL | 0.7523 mL |
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