Dr. Frederic Sierro is a Research Leader at ANSTO, investigating the crosstalk between food, nutrition and Immunometabolism. His interests relate to the role of the immune system as a regulator of local and systemic metabolism and how, in turn, the metabolic status of immune cells can affect some of their key development steps as well as their pro or anti-inflammatory polarisation. Originally trained in Switzerland, in the field of Mucosal Immunology he moved to Australia at the Garvan Institute, Sydney where he then became an Associate Group leader. His work involved characterising the function of atypical chemokine receptors and revealed previously unsuspected roles in development and in fibrosis for the chemokine receptor CXCR7/ACKR3. Prior to joining ANSTO he worked at the Centenary Institute, Sydney, in the Liver Immunology Program where the combination of classical and novel immune system characterisation methods led him to describe a hitherto unknown hepatic macrophage population at the interface between blood, lymph and peritoneal space.