...we tested the inhibitory effects of PKC412 in a more clinically relevant system by performing a dose–response analysis using FGFR3-positive t(4;14)-positive primary MM cell lines, including OPM-1, LP1 and KMS11... PKC412 effectively inhibited the growth of OPM-1 and KMS11 cells (Figure 3a). PKC412 also inhibits LP1 cells with relatively higher cellular IC50...These data suggest that PKC412 effectively inhibits proliferation of FGFR3-positive t(4;14) MM cells...