USP7 and pancreatic adenocarcinoma: Comparison of SF3B1 and USP7 protein levels in T-ALL and other hematological (B-ALL and myeloid subtypes) and solid tumors (lung, breast, melanoma, and pancreatic adenocarcinomas) showed relatively high levels of SF3B1 and USP7 in leukemia cells compared to solid cancer cells (fig.