LJI308

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 nMTarget: RSK1/2/3in 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]

Signaling Pathways >> MAPK/ERK Pathway >> Ribosomal S6 Kinase (RSK)

Research Areas >> Cancer

[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.

[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.

[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.

BI-D1870 | CMK | PF-4708671 | LY-2584702 tosylate salt | BIX 02565 | AT7867 | Pluripotin | Quercitrin | A-196 | LJH-685 | AT13148 | Carnosol