MAPK3 and acute lymphoblastic leukemia: Interestingly, combined treatment with OP449 and dovitinib induced both OP449- and dovitinib-mediated effects and blocked the phosphorylation of c-MYC, AKT, ERK1/2, p70S6, and pan-phosphotyrosine activity in both NOTCH-dependent and independent T-ALL cell lines.