ODN 1826 sodium
Based on 11 publication(s) in Google Scholar
ODN 1826 sodium is a class B CpG ODN (oligodeoxynucleotide) and TLR9 agonist. ODN 1826 sodium induces NO and iNOS production and enhances Apoptosis. ODN 1826 sodium enhances immune surveillance. ODN 1826 sodium increases aortic atherosclerotic plaque size. ODN 1826 sodium has antitumor activity against lung cancer, glioma and melanoma.
For research use only. We do not sell to patients.
- Purity: 99.51%
- Molecular Weight:6364.1 (free acid)
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Storage:
-20°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Publications Citing Use of MedChemExpress (MCE) ODN 1826 sodium
More- Nature. 2026 Apr;652(8108):209-219. [Abstract]
- Adv Mater. 2025 Sep 1:e02375. [Abstract]
- Exploration. 2025 Dec 18;5(6):20240396. [Abstract]
- Hepatology. 2025 Nov 7. [Abstract]
- Nucleic Acids Res. 2026 Apr 13;54(7):gkag328. [Abstract]
- Nano Today. 2025 Oct.
- ACS Appl Mater Interfaces. 2024 Jul 31;16(30):39153-39164. [Abstract]
- Life Sci. 2025 Aug 29:380:123930. [Abstract]
- Neurochem Res. 2025 Sep 5;50(5):288. [Abstract]
- Biochem Biophys Res Commun. 2024 Apr 16:704:149661. [Abstract]
- Research Square Preprint. 2024 Dec 18.
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RT-PCR
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Cell Proliferation/Viability Assay
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Histological Imaging/Staining
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Cell Proliferation/Viability Assay
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Apoptosis Analysis
Biological Activity
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TLR9 |
ODN 1826 (18 nM; s.c.; 3 times a week for 7 weeks) sodium increases aortic atherosclerotic plaque size in a chronic vascular injury mouse model[5].
ODN 1826 (0.05 mg; i.p.; 1, 3, 5, 8, 11, 13 days) sodium has a strong anti-tumor growth effect in a Lewis lung cancer mouse tumor model[6].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:6-week-old male C57BL/6NTac mice; GL261 glioma or B16F10 melanoma subcutaneously implanted in posterior flanks[4].
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Dosage:100 μg/tumor
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Administration:Intratumoral injection; every 3 days for up to 4 treatments
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Result:Slowed tumor growth, increased F4/80+ macrophages and B220+ B cells in tumors, with variable responses (50% mice showed prolonged stasis) (in GL261 glioma model).
Achieved complete tumor regression and induced long-term immune memory in combination with Cyclophosphamide (HY-17420).
Delayed growth but did not induce regression, with modest increases in F4/80+ macrophages and B220+ B cells in combination with Cyclophosphamide (in B16F10 melanoma model).
Chemical Information
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Appearance Solid
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Molecular Weight 6364.1 (free acid)
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Color White to off-white
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SMILES
[ODN 1826 (sodium)]
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Synonyms
CpG 1826 sodium
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
-20°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Publications (11)
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Journal Impact Factor
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Most Recent
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Nature
2026 Apr;652(8108):209-219. PMID: 41781621 -
Adv Mater
A Synergistic 3D-Printed Collar Transforms Radiofrequency Ablation Into Potent Thermal Immunotherapy for Lung Cancer. [Abstract]2025 Sep 1:e02375. PMID: 40891114
ODN 1826 sodium purchased from MedChemExpress. Usage Cited in: Adv Mater. 2025 Sep 1:e02375. [Abstract]
ODN 1826 (CpG, 500 ng per well; 24 h) significantly promoted the repolarization of M2-typed bone marrow-derived cells (BMDM), which stood for tumor-associated macrophages (TAM), with a significant increase of M1 (iNOS) and a decrease of M2 markers (Fizz1 and Mrc1).
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Exploration
A Bioorthogonal and Programmable Bacterial Delivery System for Spatiotemporally Targeted Therapy of Solid Tumors. [Abstract]2025 Dec 18;5(6):20240396. PMID: 41476656 -
Hepatology
GPC3-based circular RNA vaccine suppresses hepatocellular carcinoma progression by activating adaptive immune responses. [Abstract]2025 Nov 7. PMID: 41201153 -
Nucleic Acids Res
Engineering polymeric RNA scaffolds as programmable combinatorial innate immune agonists. [Abstract]2026 Apr 13;54(7):gkag328. PMID: 41978258 -
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ACS Appl Mater Interfaces
Therapeutic Effects of PEG-Modified Polyamide Amine Dendrimer for Cell Free DNA Adsorption in Temporomandibular Joint Osteoarthritis. [Abstract]2024 Jul 31;16(30):39153-39164. PMID: 39018481 -
Life Sci
CpG-mediated TLR9 signaling pathway enhances the efficacy of the OprF/PcrV DNA vaccine with cGAS-STING-activating properties. [Abstract]2025 Aug 29:380:123930. PMID: 40886938
ODN 1826 sodium purchased from MedChemExpress. Usage Cited in: Life Sci. 2025 Aug 29:380:123930. [Abstract]
Cytotoxicity analysis of DC 2.4 cells treated with DNA-OprF/PcrV + CpG (ODN 1826) for 24 h. CpG was functionally integrated with the DNA vaccine via physical mixing. Specifically, 10 μg of pVAX1-OprF, 10 μg of pVAX1-PcrV, and 10 μg of CpG ODN were vortex-mixed in 150 μl of 1640 medium, followed by the addition of 60 μl of transfection reagent (mass-to-volume ratio = 1:2). The mixture was incubated at room temperature for 30 min to form transfection complexes, sterilized by passage through a 0.22 μm filter, and used immediately.
ODN 1826 sodium purchased from MedChemExpress. Usage Cited in: Life Sci. 2025 Aug 29:380:123930. [Abstract]
ODN 1826 (CpG, 0.1 μg/μL; s.c.; 200 μL injected every 2 weeks for a total of three times).HE-stained image of pathological sections of the heart, liver, lung, and kidney after immunization (100×). Scale bar = 50 μm. These results revealed no obvious tissue pathological changes or inflammatory cell infiltration in the four treatment groups, including the DNA-OprF/PcrV + CpG group.
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Neurochem Res
Dual Targeting of TLR9 and cGAS-STING Pathways Attenuates Astrocyte Inflammatory Activation: Potential Implication in Multiple Sclerosis. [Abstract]2025 Sep 5;50(5):288. PMID: 40911109
ODN 1826 sodium purchased from MedChemExpress. Usage Cited in: Neurochem Res. 2025 Sep 5;50(5):288. [Abstract]
ODN 1826 (CpG) regulate astrocyte cell viability and TLR9/NF-κB pathway activation. Human astrocytes were treated with varying concentrations of CpG oligodeoxynucleotides (0, 100, 1000, and 5000 ng/mL) for 24 h. Cell viability was assessed using CCK-8 assay.
ODN 1826 sodium purchased from MedChemExpress. Usage Cited in: Neurochem Res. 2025 Sep 5;50(5):288. [Abstract]
ODN 1826 (CpG) regulate astrocyte cell viability and TLR9/NF-κB pathway activation. Human astrocytes were treated with varying concentrations of CpG oligodeoxynucleotides (0, 100, 1000, and 5000 ng/mL) for 24 h. Apoptosis rates were determined by flow cytometry analysis using Annexin V-FITC and propidium iodide staining.
ODN 1826 sodium purchased from MedChemExpress. Usage Cited in: Neurochem Res. 2025 Sep 5;50(5):288. [Abstract]
ODN 1826 (CpG) regulate astrocyte cell viability and TLR9/NF-κB pathway activation. Human astrocytes were treated with varying concentrations of CpG oligodeoxynucleotides (0, 100, 1000, and 5000 ng/mL) for 24 h. Protein expression levels of TLR9, total NF-κB, and phosphorylated NF-κB (p-NF-κB) were analyzed by Western blot with GAPDH as loading control.
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Biochem Biophys Res Commun
Sequential administration of delta-tocotrienol ameliorates radiation-induced myelosuppression in mice and non-human primates through inducing G-CSF production. [Abstract]2024 Apr 16:704:149661. PMID: 38417343 -
Purity & Documentation
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Data Sheet (273 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)
- Portuguese - PT (251 KB)
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Handling Instructions (2242 KB)
References
[1]. Hou Y, et al. Lipoamide Ameliorates Oxidative Stress via Induction of Nrf2/ARE Signaling Pathway in PC12 Cells. J Agric Food Chem. 2019 Jul 24;67(29):8227-8234. [Content Brief]
[2]. Qi XF, et al. CpG oligodeoxynucleotide induces apoptosis and cell cycle arrest in A20 lymphoma cells via TLR9-mediated pathways. Mol Immunol. 2013 Jul;54(3-4):327-37. [Content Brief]
[3]. Utaisincharoen P, et al. CpG ODN activates NO and iNOS production in mouse macrophage cell line (RAW 264.7). Clin Exp Immunol. 2002 Jun;128(3):467-73. [Content Brief]
[4]. Jordan M, et al. CpG-1826 immunotherapy potentiates chemotherapeutic and anti-tumor immune responses to metronomic cyclophosphamide in a preclinical glioma model. Cancer Lett. 2016 Apr 1;373(1):88-96. [Content Brief]
[5]. Krogmann AO, et al. Proinflammatory Stimulation of Toll-Like Receptor 9 with High Dose CpG ODN 1826 Impairs Endothelial Regeneration and Promotes Atherosclerosis in Mice. PLoS One. 2016 Jan 11;11(1):e0146326. [Content Brief]
[6]. Yuan S, et al. CpG oligodeoxynucleotide 1826 enhances the Lewis lung cancer response to radiotherapy in murine tumor. Cancer Biother Radiopharm. 2011 Apr;26(2):203-8. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)