Robert Sackstein, M.D., Ph.D., is a bone marrow transplant physician and a leading researcher in adult stem cell therapeutics. He received his undergraduate degree from Harvard College, Summa cum Laude in biology, and his M.D. and Ph.D. (in Immunology) degrees from Harvard Medical School. Dr. Sackstein is widely recognized for developing the platform technology (known as “GPS”) that directs migration of stem cells from the bloodstream to sites of tissue injury. He is a Professor of Dermatology and of Medicine at Harvard Medical School, is the Director of the Translational Research Program of the Bone Marrow Transplantation Unit at the Massachusetts General Hospital, and is a Bone Marrow Transplant Physician at Brigham and Women’s Hospital and the Dana-Farber Cancer Institute (Boston, MA).