Dear colleagues, It is our pleasure to invite you to the "Thymus@Lisbon" Symposium, which will take place on the 12th of June, 2015 at the Instituto de Medicina Molecular, Lisbon, Portugal. This one-day symposium focuses on the latest advances in the field of T-lymphocyte development, tolerance and thymic regeneration therapies. We will welcome 6 international experts of high reputation in the area of Immunology: Adrian Hayday (UK), Georg Holländer (UK, CH), Nancy Manley (USA), Ludger Klein (DE), Adrian Liston (BE) e Bianca Blom (NL). Registration is free! You will find more information at http://imm.fm.ul.pt/web/imm/thymuslisbon