Jason Howitt is head of the cell signaling laboratory at Swinburne University and an honorary fellow at the Florey Institute of Neuroscience and Mental Health. He obtained his PhD in biochemistry in 2002 and performed postdoctoral training at Brookhaven National Laboratory, New York, and at Imperial College, London. He returned to Australia in 2006 as a NHMRC Howard Florey Fellow and has been continually funded since then by five further NHMRC project grants. He has over fifteen years’ experience as a neurobiologist working on both neurodevelopmental and neurodegenerative disorders. Dr. Howitt’s laboratory is focused on ubiquitin-mediated trafficking of proteins in Parkinson’s disease, in particular, how extracellular vesicles called exosomes can transport alpha-synuclein from cell to cell in the body. His previous work has investigated how to engineer exosomes to transport target proteins and discovered the tumor suppresser PTEN is carried in exosomes.