Influenza vaccination induces NK-cell-mediated type-II IFN response that regulates humoral immunity in an IL-6-dependent manner

Farsakoglu, Yagmur; Palomino-Segura, Miguel; Latino, Irene; Zanaga, Silvia; Chatziandreou, Nikolaos; Pizzagalli, Diego Ulisse; Rinaldi, Andrea; Bolis, Marco; Sallusto, Federica; Stein, Jens V.; Gonzalez, Santiago F.

doi:10.1016/j.celrep.2019.01.104

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Journal article

Influenza vaccination induces NK-cell-mediated type-II IFN response that regulates humoral immunity in an IL-6-dependent manner

Farsakoglu, Yagmur Institute for Research in Biomedicine (IRB), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland - Graduate School of Cellular and Molecular Sciences, Faculty of Medicine, University of Bern, Switzerland
Palomino-Segura, Miguel Institute for Research in Biomedicine (IRB), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland - Graduate School of Cellular and Molecular Sciences, Faculty of Medicine, University of Bern, Switzerland
Latino, Irene Institute for Research in Biomedicine (IRB), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland
Zanaga, Silvia Institute for Research in Biomedicine (IRB), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland
Chatziandreou, Nikolaos Institute for Research in Biomedicine (IRB), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland
Pizzagalli, Diego Ulisse Institute for Research in Biomedicine (IRB), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland - Institute of Computational Science (ICS), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland
Rinaldi, Andrea Institute of Oncology Research (IOR), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland
Bolis, Marco Institute of Oncology Research (IOR), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland - Laboratory of Molecular Biology, Instituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
Sallusto, Federica Institute for Research in Biomedicine (IRB), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland - Institute for Microbiology, ETH Zurich, Switzerland
Stein, Jens V. Theodor Kocher Institute (TKI), University of Bern, Switzerland
Gonzalez, Santiago F. Institute for Research in Biomedicine (IRB), Faculty of Biomedical Sciences, Università della Svizzera italiana, Switzerland

26.02.2019

Published in:

Cell reports. - 2019, vol. 26, no. 9, p. 2307-2315.e5

English The role of natural killer (NK) cells in the immune response against vaccines is not fully understood. Here, we examine the function of infiltrated NK cells in the initiation of the inflammatory response triggered by inactivated influenza virus vaccine in the draining lymph node (LN). We observed that, following vaccination, NK cells are recruited to the interfollicular and medullary areas of the LN and become activated by type I interferons (IFNs) produced by LN macrophages. The activation of NK cells leads to their early production of IFNγ, which in turn regulates the recruitment of IL-6+ CD11b+ dendritic cells. Finally, we demonstrate that the interleukin-6 (IL-6)-mediated inflammation is important for the development of an effective humoral response against influenza virus in the draining LN.

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