CASC3 and plasma cell myeloma: The combination treatment of DM plus the anti-myeloma drugs, BTZ (10 nM), Dex (10uM), lenalidomide (Len) (10uM), or doxorubicin (Dox) (1uM), resulted in synergistic death in both of the drug resistant MM cell lines (Fig. 3e and Fig. S3).