Sean J. Morrison, Ph.D., is the Director of the Children’s Medical Center Research Institute (CRI) at UT Southwestern, the Mary McDermott Cook Chair in Pediatric Genetics, the Kathryne and Gene Bishop Distinguished Chair in Pediatric Research, and a Howard Hughes Medical Institute Investigator. The Morrison laboratory studies the cellular and molecular mechanisms that regulate the function of stem cells and cancer cells in the nervous and hematopoietic systems. His laboratory is particularly interested on the mechanisms that regulate stem cell self-renewal and stem cell aging, as well as the role these mechanisms play in cancer. He is a former President of the International Society for Stem Cell Research (2015).