AUTHOR=Frezza Christian , Mauro Claudio TITLE=Editorial: The Metabolic Challenges of Immune Cells in Health and Disease JOURNAL=Frontiers in Immunology VOLUME=6 YEAR=2015 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2015.00293 DOI=10.3389/fimmu.2015.00293 ISSN=1664-3224