Tim Tree is a specialist in human T cell immunology with particular expertise in analysing the function of autoreactive and regulatory T cells in human health and disease. Tim is a Professor of Immune Regulation and Immunotherapy in the Department of Immunobiology, King’s College London. He is Head of the Diabetes UK/JDRF funded Type 1 Diabetes Immunotherapy Consortium Mechanistic Core and leads the Biomarker Work Package of the INNODIA Harvest EU Consortium both of which aim to understand and arrest the development of type 1 diabetes.