In Vivo (Add solvents to the product individually and in order.)
Homogeneous suspension
CMC-NA
≥5mg/ml
Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution
5%DMSO
40%PEG300
5%Tween80
50%ddH2O
Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.
2.750mg/ml
(6.00mM)
Taking the 1 mL working solution as an example, add 50 μL of 55 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution
5% DMSO
95% Corn oil
Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.
0.456mg/ml
(0.99mM)
Taking the 1 mL working solution as an example, add 50 μL of 9.12 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)
Preparing Stock Solutions
Biological Activity
Description
Motolimod is a selective and potent Toll-like receptor 8 (TLR8) agonist with EC50 of 100 nM, > 50-fold selectivity over TLR7. Phase 2.
Targets
TLR8
100 nM(EC50)
In vitro
VTX-2337 stimulates the production of both TNFα with EC50 of 140 nM and IL-12 with EC50 of 120 nM in PBMCs. In monocytes and mDCs, VTX-2337 selectively induces the production of TNFα and IL-12 via NF-κB activation. VTX-2337 also stimulates IFNγ production from NK cells, augments the lytic function of NK cells and enhances ADCC.
In Vivo
In an ovarian cancer mouse model, TX-2337 enhances the effect of pegylated liposomal doxorubicin (PLD).
The activity of specific TLR agonists is assessed using the secretory embryonic alkaline phosphatase (SEAP) reporter gene that is linked to NF-κB activation in response to TLR stimulation. Measurement of SEAP activity using the Quanti-blue substrate (InvivoGen) after TLR agonist treatment is carried out.
PBMCs or purified NK cells are prepared as previously described, and the purity of NK cells was approximately 99%. NK cell–mediated cytotoxicity is assessed by Calcein AM release from labeled target cells. In brief, PBMCs or purified NK cells are cultured for 48 hours in RPMI medium in the presence of VTX-2337 (167 or 500 nmol/L) before incubation with target cells.
References
https://pubmed.ncbi.nlm.nih.gov/22128302/
http://meetinglibrary.asco.org/content/117195-132
Sellecks Motolimod Has Been Cited by 11 Publications
Toll-like receptor 8 activation induces a neutrophil inflammatory phenotype: therapeutic implications for the utility of toll-like receptor 8 inhibition
[ J Leukoc Biol, 2025, 117(5)qiaf036]
Preclinical Evidence for the Glucocorticoid-Sparing Potential of a Dual Toll-Like Receptor 7/8 Inhibitor in Autoimmune Diseases
[ J Pharmacol Exp Ther, 2024, 388(3):751-764]
Human Neutrophils Activated by TLR8 Agonists, With or Without IFNγ, Synthesize and Release EBI3, but Not IL-12, IL-27, IL-35, or IL-39
[ J Leukoc Biol, 2020, 1]
Determination of motolimod concentration in rat plasma by liquid chromatography-tandem mass spectrometry and its application in a pharmacokinetic study.
[ J Pharm Biomed Anal, 2020, 179:112987]
TLR7/8-agonist-loaded Nanoparticles Promote the Polarization of Tumour-Associated Macrophages to Enhance Cancer Immunotherapy
[ Nat Biomed Eng, 2018, 2(8):578-588]
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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.
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