Dr. Sean Morrison is Director of the Children's Medical Center Research Institute at UT Southwestern and Professor of Pediatrics, and he holds the Kathryne and Gene Bishop Distinguished Chair in Pediatric Research at Children's Research Institute at UT Southwestern and the Mary McDermott Cook Chair in Pediatric Genetics. He is known for his significant discoveries in stem cell biology, particularly at its interface with cancer. The Morrison laboratory studies the mechanisms that maintain stem cell function in adult tissues and the ways in which cancer cells hijack these mechanisms to enable neoplastic proliferation. A better understanding of these mechanisms offers the potential to yield new regenerative medicine and cancer therapies. Dr. Morrison is a Howard Hughes Medical Institute (HHMI) Investigator, and he was elected to the National Academy of Medicine in 2018 and to the National Academy of Sciences in 2020.