Annalisa Ruggeri, MD, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy, discusses cellular therapy, specifically the engineering of T-cells and the use of mesenchymal stem cells (MSCs) for treating graft-versus-host disease (GvHD). This interview was recorded via an online conference call with The Video Journal of Hematological Oncology (VJHemOnc).