Adrian E. Morelli, M.D., Ph.D., is Professor of the Departments of Surgery and Immunology at the University of Pittsburgh (USA). He is a faculty member of the T.E. Starzl Transplantation Institute (University of Pittsburgh). His major areas of research are the role of dendritic cells of the immune system in the pathogenesis of transplant rejection, and the study of the in vivo mechanisms by which regulatory dendritic cell-based therapies control the anti-donor response in transplantation. He is also interested in the role of extracellular vesicles (i.e. exosomes) as mechanism transfer of allo-antigens, regulatory RNAs, and other regulatory molecules between donor cells and recipient antigen-presenting cells. His work is funded by the National Institutes of Health (USA).