MALAT1 and Miyoshi myopathy: To decipher the role of MALAT1 in bortezomib sensitivity, we combined g#5 with bortezomib and evaluated effects on cell viability: notably, g#5 enhanced bortezomib activity on AMO-1 (Fig. 5e) and on MM patient-derived primary PCs (Fig. S13c), and overcame bortezomib resistance in AMO-BZB cells (Fig. 5f).