The first stable serially transplantable patient-derived xenograft of M5 acute myeloid leukemia in mice is described. Cytokines that support the autocrine mechanism for the growth of the implants were produced. This was the first patient-derived xenograft with both FLT3-ITD and IDH2 mutant acute myeloid leukemia. The drug effect in this model differed between chemotherapy standard of care and FLT target agent.