Dr Jan Joseph (Jos) Melenhorst obtained his PhD at the LUMC (Department of Hematology) on the pathogenesis of Aplastic Anemia. In 1998 he moved to Bethesda, Maryland, where he did his research - first as a postdoc, later as a staff scientist - in the laboratory of Dr. John Barrett at the National Institutes of Health, on the immunobiology of marrow failure syndromes, leukemic disorders, and allogeneic stem cell transplantation. In 2012 he was recruited by Dr. Bruce Levine and Dr. Carl June to the University of Pennsylvania, first as Deputy Director of their clinical manufacturing (cGMP) facility. After a year he was promoted to Director of Product Development & Correlative Sciences. In this role, he was at the cusp of the first ever CAR T cell therapy approved by FDA: Kymriah. Dr. Melenhorst is interested in understanding and improving the anti-tumor efficacy and safety of adoptively transferred chimeric antigen receptor-modified T cells through correlative, mechanistic, and functional genomics approaches.