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In vitro: Tomivosertib (eFT-508) has a half-maximal inhibitory concentration (IC50) of 1-2 nM against both MNK isoforms in enzyme assays and inhibits the kinase through a reversible, ATP-competitive mechanism of action. Treatment of tumor cell lines with eFT508 leads to a dose-dependent reduction in eIF4E phosphorylation at serine 209 (IC50 = 2-16 nM). In a panel of ~50 hematological cancers, eFT508 shows anti-proliferative activity against multiple DLBCL cell lines. Sensitivity to eFT508 in TMD8, OCI-Ly3 and HBL1 DLBCL cell lines is associated with dose-dependent decreases in production of pro-inflammatory cytokines including TNFα, IL-6, IL-10 and CXCL10.
In vivo: Tomivosertib (eFT-508) is well-tolerated and shows efficacy against MyD88-mutant DLBCL models in vivo. Significant anti-tumor activity of eFT508 is observed in the TMD8 and HBL-1 ABC-DLBCL models(subcutaneous human lymphoma xenograft models), both of which harbor activating MyD88 mutations.
| Cell Experiment | |
|---|---|
| Cell lines | TMD8 cells |
| Preparation method | TMD8 cells are treated with the indicated concentrations of eFT508 for 24 h. Cell lysates are subjected to m7-GTP Sepharose pull-down and bound proteins are analyzed by immunoblotting with the indicated antibodies. |
| Concentrations | 0.01, 0.1, 1, 3, 10 μM |
| Incubation time | 24 h |
| Animal Experiment | |
|---|---|
| Animal models | |
| Formulation | |
| Dosages | |
| Administration | |
| Molecular Weight | 340.38 |
| Formula | C17H20N6O2 |
| CAS Number | 1849590-01-7 |
| Form | Solid |
| Solubility (25°C) | DMSO 5 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Related MNK Products |
|---|
| CGP 57380
CGP 57380 is potent MNK1 inhibitor with IC50 of 2.2 μM, exhibiting no inhibitory activity on p38, JNK1, ERK1 and -2, PKC, or c-Src-like kinases. |
| SLV-2436
SLV-2436 (SEL201-88) is a novel ATP-competitive inhibitor of MNK1 and MNK2 with IC50 of 10.8 nM and 5.4 nM, respectively. |
All AbMole products are for research use only, cannot be used for human consumption or veterinary use. We do not provide products or services to individuals. Please comply with the intended use and do not use AbMole products for any other purpose.
Products are for research use only. Not for human use. We do not sell to patients.
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