CIP2A is overexpressed in several types of cancer cell [5, 10, 15–18], and its utility as a prognostic marker has been established in various solid and hematological cancers, including esophageal squamous cell and non-small cell lung carcinoma; breast, gastric, bladder, ovarian, tongue, hepatocellular, and colon cancers; and chronic myelogenous leukemia [5, 10, 15–21]. This evidence concerns the gene CIP2A and chronic myelogenous leukemia, BCR-ABL1 positive.