AXL and acute myeloid leukemia: Receptor tyrosine kinase TAM (TYRO3, AXL, MERTK) family members are overexpressed in several hematological malignancies, including acute myeloid leukemia, chronic myeloid leukemia, and acute lymphoid leukemia [3, 4], and in different types of solid tumors, such as pancreatic, lung, gastric, and breast cancers [5].