MARK2 and acute myeloid leukemia: These have been stimulated kinases, like epidermal growth factor receptor (EGFR) in melanoma, B-Raf proto-oncogene, serine/threonine kinase (BRAF) in pulmonary cancer, and fms-like tyrosine kinase 3 (FLT3) in acute myeloid leukemia (AML) cases.