The third edition of the internal LBAI annual seminar will take place on Thursday 13 and Friday 14 September in Brest. Several members of the unit will make a presentation of their current work. We will also have the pleasure to host three guest speakers: Christophe RICHEZ (UMR/CNRS 5164, ImmunoConcEpT, Bordeaux University), Karl Balabanian (Inserm U1131, Paris-Cité University), Aymeric Silvin (InsermU1015, Gustave Roussy Institute).