The Blood and Brain Institute @ Caen-Normandy (BB@C) is a unique research group of international dimension, innovative in its approaches and organization. It brings together fundamental and applied researchers, clinicians and private companies, with the objective of enabling the rapid development of new tools for the diagnosis and treatment of nervous system diseases. Masterclass animated by Pr Denis VIVIEN, professor of cell biology at the Blood and Brain Institute, at the University of Caen-Normandy (BB@C) and at Inserm-PhInd.