Dr. Lötvall is a specialist in Clinical Pharmacology as well as Clinical Allergy, and also has previous experience in General Surgery and Internal Medicine. He has over the last ten years been a pioneer in studies of the biological function of exosomes and other extracellular vesicles, and their natural ability of transferring RNA between cells. Dr. Lötvall published the first study documenting the ability of exosomes to send functional RNA into cells in 2007 in Nature Cell Biology. In 2013 he received the International Society for Extracellular Vesicles (ISEV) Special Achievement Award for this discovery and for his role in developing the ISEV community. Dr. Lötvall was a fellow at the Department of Thoracic Medicine, Imperial College, London from 1988 to 1990, and a visiting professor in the Department of Respiratory Medicine, McMaster University, Canada from 1997 to 1998. He has published approximately 260 scientific papers and has been instrumental in starting two open access journals, including the Journal of Extracellular Vesicles as well as Clinical and Translational Allergy.