Johannes van der Loo, Ph.D., is an Adjunct Associate Professor of Pathology and Laboratory Medicine at Perelman School of Medicine at the University of Pennsylvania and Director of the Clinical Vector Core at the Children's Hospital of Philadelphia (CHOP). His expertise includes process development and manufacturing of pre-clinical and GMP-grade adeno-associated virus (AAV) and lentiviral vectors applicable to early-phase clinical trials since 2002. He was involved in the development, design, commissioning, and qualification of several cGMP facilities. In 2021, the manufacturing facility at CHOP received the 2021 Facility of the Year Honorable Mention Award by the International Society for Pharmaceutical Engineering. Previously, Dr. van der Loo was a founder and served as the Director of the Vector Production Facility at the Cincinnati Children's Hospital Medical Center. He served on the Translational Science and Product Development Committee of the American Society of Gene & Cell Therapy (2016-2022) and the Editorial Board of Molecular Therapy – Methods & Clinical Development, Translational Science (2013-2022). He continues to serve as a thought leader, scientific advisor, and consultant in several capacities. Dr. van der Loo obtained his Ph.D. in cell biology from the Erasmus University in Rotterdam, The Netherlands.