DUARTE, Calif.--(BUSINESS WIRE)--Gene therapy pioneer John A. Zaia, M.D., has been named director of the Center for Gene Therapy within City of Hope's new Hematologic Malignancies and Stem Cell Transplantation Institute. Internationally known and respected for his groundbreaking research into potential gene therapy treatments for HIV, Zaia will maximize the potential of gene therapy not just for HIV, but also for cancer and other diseases as City of Hope expands its commitment to this revolutionary field of research.