For research use only. Not for therapeutic Use.
LJI308 is a new and potent pan-RSK inhibitor, with IC50 of 6 nM, 4 nM, and 13 nM for RSK1, RSK2, and RSK3, respectively.
IC50 value: 6/4/13 nM
Target: RSK1/2/3
in vitro: LJI308 efficiently inhibits RSK activity. LJI308 inhibites S6K1 with an IC50 of 0.8 μM, representing a 200-fold lower inhibition than that of RSK2. LJI308 inhibits MEK4 less than 50% at 10 μMand HIP kinase 1 less than 50% at 1 μM. [1] LJI308 inhibits the growth and survival of TNBC. LJI308 also suppresses the growth of HTRY-LT cells in 3-dimensional soft agar cultures. LJI308 is one of the first potent and effective targeted therapies for TNBC that, unlike currently utilized drugs, exhibits efficacy in eliminating the CSC population. [2]
| Catalog Number | I013779 |
| CAS Number | 1627709-94-7 |
| Molecular Formula | C₂₁H₁₈F₂N₂O₂ |
| Purity | ≥95% |
| Target | Ribosomal S6 Kinase (RSK) |
| Solubility | DMSO: ≥ 32 mg/mL |
| IUPAC Name | 2,6-difluoro-4-[4-(4-morpholin-4-ylphenyl)pyridin-3-yl]phenol |
| InChI | InChI=1S/C21H18F2N2O2/c22-19-11-15(12-20(23)21(19)26)18-13-24-6-5-17(18)14-1-3-16(4-2-14)25-7-9-27-10-8-25/h1-6,11-13,26H,7-10H2 |
| InChIKey | YUYJEQHNWKQNBT-UHFFFAOYSA-N |
| SMILES | C1COCCN1C2=CC=C(C=C2)C3=C(C=NC=C3)C4=CC(=C(C(=C4)F)O)F |
| Reference | [1]. Aronchik I, et al. Novel potent and selective inhibitors of p90 ribosomal S6 kinase reveal the heterogeneity of RSK function in MAPK-driven cancers. Mol Cancer Res. 2014 May;12(5):803-12.<br>[2]. Davies AH, et al. Inhibition of RSK with the novel small-molecule inhibitor LJI308 overcomes chemoresistance by eliminating cancer stem cells. Oncotarget. 2015 Aug 21;6(24):20570-7.<br>[3]. Jain R, et al. Discovery of Potent and Selective RSK Inhibitors as Biological Probes. J Med Chem. 2015 Sep 10;58(17):6766-83. |
