USP15 and chronic myelogenous leukemia, BCR-ABL1 positive: In the present study, we detected the expression of USP15, Caspase-6, STAT5A-regulated miR-202-5p and STAT5A in CML cell lines and PBMCs of CML patients and investigated the functional relationship between these gene expression and CML cell apoptosis in the context of Imatinib or pimozide treatment.