DDX39A and plasma cell myeloma: Oncomine DDX39 expression meta-analysis in cancer vs. normal tissues showed that DDX39 was highly expressed in kidney, bladder, brain, cervical, colorectal, esophageal, gastric cancer, head and neck, liver cancer, lung, ovarian, pancreatic and prostate cancers, as well as in lymphoma, melanoma, myeloma and sarcoma (Figure 1A, Table S5).