Information LJH685 LJH685 is a potent pan- RSK inhibitor with IC50 of 6 nM, 5 nM and 4 nM for RSK1, RSK2, and RSK3, respectively. Targets RSK3 (Cell-free assay); RSK2 (Cell-free assay); RSK1 (Cell-free assay) 4 nM; 5 nM; 6 nM In vitro LJH685 modulates YB1 phosphorylation by potently and selectively inhibiting RSK in cells. In MAPK pathway–dependent cancer cell lines, LJH685 shows antiproliferative effects, and causes cell-cycle regulation and apoptosis induction. Cell Research(from reference) Cell lines：Calu6, NCI-H2122, NCI-H358, NCI-H727, NCI-H2087, SW620, SW480, HT29, Capan-2, MiaPaCa2, SW1990, Panc02.03, MDA-MB-231, A375, G361, Colo205, Malme3M, WM1799, WM983B and WM266-4 cells Concentrations：~100 μM Incubation Time：72 h