AUTHOR=Haks Mariëlle C. , Bottazzi Barbara , Cecchinato Valentina , De Gregorio Corinne , Del Giudice Giuseppe , Kaufmann Stefan H. E. , Lanzavecchia Antonio , Lewis David J. M. , Maertzdorf Jeroen , Mantovani Alberto , Sallusto Federica , Sironi Marina , Uguccioni Mariagrazia , Ottenhoff Tom H. M. TITLE=Molecular Signatures of Immunity and Immunogenicity in Infection and Vaccination JOURNAL=Frontiers in Immunology VOLUME=8 YEAR=2017 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2017.01563 DOI=10.3389/fimmu.2017.01563 ISSN=1664-3224 ABSTRACT=

Vaccinology aims to understand what factors drive vaccine-induced immunity and protection. For many vaccines, however, the mechanisms underlying immunity and protection remain incompletely characterized at best, and except for neutralizing antibodies induced by viral vaccines, few correlates of protection exist. Recent omics and systems biology big data platforms have yielded valuable insights in these areas, particularly for viral vaccines, but in the case of more complex vaccines against bacterial infectious diseases, understanding is fragmented and limited. To fill this gap, the EC supported ADITEC project (http://www.aditecproject.eu/; http://stm.sciencemag.org/content/4/128/128cm4.full) featured a work package on “Molecular signatures of immunity and immunogenicity,” aimed to identify key molecular mechanisms of innate and adaptive immunity during effector and memory stages of immune responses following vaccination. Specifically, technologies were developed to assess the human immune response to vaccination and infection at the level of the transcriptomic and proteomic response, T-cell and B-cell memory formation, cellular trafficking, and key molecular pathways of innate immunity, with emphasis on underlying mechanisms of protective immunity. This work intersected with other efforts in the ADITEC project. This review summarizes the main achievements of the work package.