MEIS1 and malignant peripheral nerve sheath tumor: Oncogenic role of MEIS1 transcription factor is detected in a variety of malignancies including leukemia, malignant peripheral nerve sheath tumors (MPNST), nephroblastoma, and ovarian, where it promotes cell proliferation and inhibits programmed cell death (Blasi, Bruckmann, Penkov, & Dardaei, 2017).