Telratolimod

Catalog No.S9623 Batch:S962301

Technical Data

Formula

C₃₆H₅₉N₅O₂

Molecular Weight

593.89

CAS No.

1359993-59-1

Solubility (25°C)*

In vitro

Ethanol

13 mg/mL (21.88 mM)

DMSO

Insoluble

Water

Insoluble

In vivo (Add solvents to the product individually and in order)

Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O	0.325mg/ml	Taking the 1 mL working solution as an example, add 50 μL of 6.5 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 1 95% Corn oil	0.65mg/ml	Taking the 1 mL working solution as an example, add 50 μL of 13 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

Telratolimod (3M-052, MEDI9197) is an agonist of toll-like receptor 7 (TLR-7) and toll-like receptor 8 (TLR-8) with antitumor activity.

Targets

TLR7 ^[1]

TLR8 ^[1]

In vitro

3M-052 induces both TNFα and IFNα in human PBMCs in a manner indicative of a dual TLR7/TLR8 agonist. 3M-052 stimulates the production of IL8 in HEK293 cells stably expressing either human TLR7 or TLR8. In contrast, no IL8 is stimulated in empty vector control cells. The TLR8 agonist activity of 3M-052 may be of particular value in the immunization of neonates and infants whose monocytes and antigen presenting cells have a diminished capacity to generate TH1 polarizing signals to TNFα and IFNα.^[2]

In vivo

The co-administering CpG ODN with Telratolimod (3M-052) is remarkably effective at eliminating large established tumors and establishes long-term protective immunity. This anti-tumor activity is associated with a significant diminution in the frequency of tumor resident MDSC and accumulation of tumor-lytic NK and CD8 T cells, resulting in persistent anti-tumor immunity.^[1]

Protocol (from reference)

Cell Assay:^{^[2]}	Cell lines PBMCs Concentrations 0.001 nM, 0.01 nM, 0.1 nM, 1 nM, 0.01 μM, 0.1 μM, 1 μM, 10 μM, 100 μM Incubation Time 16 h Method PBMC are cultured at 2 × 10⁶/ml in 0.25 ml in 96-well plates. For evaluation of R848 and 3M-052, these compounds are first dissolved in DMSO and then diluted into culture medium to the final desired concentrations. DMSO concentration is maintained at 0.1% in all wells. The cultures are then incubated for 16 hr at 37 ◦C in a humidified atmosphere of 5.0% CO2 in air. The culture plates are then centrifuged to settle cells to the well surface and medium is removed for cytokine analysis by ELISA assay.
Animal Study:^{^[1]}	Animal Models 6–8-week-old BALB/c and C57BL/6 mice Dosages 50 μg, 100 μg (4 mg/ml) Administration intra tumor injection

Cell Assay:^{^[2]}

Cell lines
PBMCs
Concentrations
0.001 nM, 0.01 nM, 0.1 nM, 1 nM, 0.01 μM, 0.1 μM, 1 μM, 10 μM, 100 μM
Incubation Time
16 h
Method
PBMC are cultured at 2 × 10⁶/ml in 0.25 ml in 96-well plates. For evaluation of R848 and 3M-052, these compounds are first dissolved in DMSO and then diluted into culture medium to the final desired concentrations. DMSO concentration is maintained at 0.1% in all wells. The cultures are then incubated for 16 hr at 37 ◦C in a humidified atmosphere of 5.0% CO2 in air. The culture plates are then centrifuged to settle cells to the well surface and medium is removed for cytokine analysis by ELISA assay.

Animal Study:^{^[1]}

Animal Models
6–8-week-old BALB/c and C57BL/6 mice
Dosages
50 μg, 100 μg (4 mg/ml)
Administration
intra tumor injection

References

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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.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.