PTPN11 and acute myeloid leukemia: RESULTS: Reverse-phase protein array in 818 primary AML samples revealed significantly high MERTK protein expression in monocytic acute myeloid leukemia (AML), especially in those with PTPN11, RAS, CEBPA mutations, t (9;11) translocation, and high WBC count, suggesting its potential as a therapeutic target in AML.