Dr. Sun obtained his Ph.D. degree in Molecular Biology and Genetics by studying mechanisms of Neurofibromatosis Type 1 (NF1)-associated Malignant Peripheral Nerve Sheath Tumors (MPNST) at School of Medicine, Wayne State University. He further received postdoctoral training from the Developmental Biology Department at the University of Texas, Southwestern Medical Center, and Cancer Biology and Genetics program in Memorial Sloan Kettering Cancer Center. His works emphasize the cell-of-origins of the tumor, and he identified a stem-like cell population playing essential roles in tumorigenesis, relapse, and metastasis of NF1-associated plexiform neurofibromas and MPNST. These discoveries may provide novel strategies to prevent tumor transformation, progression, chemoresistance, and metastasis.