ACP5 and plasma cell myeloma: Similar to myeloma cells, exosomes isolated from MCF7 cells expressing high levels of hnRNPA2B1 (shCtrl, A2B1) induced more TRAP+ cells formation (Figure S10C) and less mature osteoblasts than those with low levels of hnRNPA2B1 (Vec or shA2B1) (Figure S10D).