MALAT1 and Miyoshi myopathy: This lncRNA was overexpressed in a wide variety of solid tumours and also in haematological malignancies, including MM.43, 44, 45 Moreover, high levels of expression of MALAT1 in MM have been associated with the onset of the disease, progression from normal PCs to MM and extramedullary dissemination.44, 45, 46, 47MAGED1 was down‐regulated in JJN3 FAM46C KO clones and RHOBTB1 in two (JJN3 and U266) out of the three HMCLs analysed.