Article (Scientific journals)
B cell-intrinsic MyD88 signaling controls IFN-γ-mediated early IgG2c class switching in mice in response to a particulate adjuvant
Lee, M. S. J.; Natsume-Kitatani, Y.; Temizoz, B. et al.
2019In European Journal of Immunology, 49 (9), p. 1433-1440
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Keywords :
B cells; IFN-γ; Myd88 protein, mouse; Article; B lymphocyte; T lymphocyte; C57BL mouse; Adjuvants, Immunologic; Animals; B-Lymphocytes; Dendritic Cells; Immunoglobulin Class Switching; Immunoglobulin G; Interferon-gamma; Killer Cells, Natural; Mice; Mice, Inbred C57BL; Mice, Knockout; Myeloid Differentiation Factor 88; Signal Transduction; T-Lymphocytes
Abstract :
[en] Adjuvants improve the potency of vaccines, but the modes of action (MOAs) of most adjuvants are largely unknown. TLR-dependent and -independent innate immune signaling through the adaptor molecule MyD88 has been shown to be pivotal to the effects of most adjuvants; however, MyD88's involvement in the TLR-independent MOAs of adjuvants is poorly understood. Here, using the T-dependent antigen NIPOVA and a unique particulate adjuvant called synthetic hemozoin (sHZ), we show that MyD88 is required for early GC formation and enhanced antibody class-switch recombination (CSR) in mice. Using cell-type-specific MyD88 KO mice, we found that IgG2c class switching, but not IgG1 class switching, was controlled by B cell-intrinsic MyD88 signaling. Notably, IFN-γ produced by various cells including T cells, NK cells, and dendritic cells was the primary cytokine for IgG2c CSR and B-cell intrinsic MyD88 is required for IFN-γ production. Moreover, IFN-γ receptor (IFNγR) deficiency abolished sHZ-induced IgG2c production, while recombinant IFN-γ administration successfully rescued IgG2c CSR impairment in mice lacking B-cell intrinsic MyD88. Together, our results show that B cell-intrinsic MyD88 signaling is involved in the MOA of certain particulate adjuvants and this may enhance our specific understanding of how adjuvants and vaccines work. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Disciplines :
Life sciences: Multidisciplinary, general & others
Author, co-author :
Lee, M. S. J.;  Laboratory of Malaria Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
Natsume-Kitatani, Y.;  Laboratory of Bioinformatics, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
Temizoz, B.;  Laboratory of Vaccine Science, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
Fujita, Y.;  Laboratory of Malaria Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
Konishi, A.;  Laboratory of Malaria Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
Matsuda, K.;  Laboratory of Malaria Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
Igari, Y.;  ZENOAQ, Nippon Zenyaku Kogyo Co. Ltd., Koriyama, Fukushima, Japan
Tsukui, T.;  ZENOAQ, Nippon Zenyaku Kogyo Co. Ltd., Koriyama, Fukushima, Japan
Kobiyama, K.;  Laboratory of Vaccine Science, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan, Laboratory of Adjuvant Innovation, National Institutes of Biomedical Innovation Health and Nutrition (NIBIOHN), Osaka, Japan
Kuroda, E.;  Laboratory of Vaccine Science, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan, Laboratory of Adjuvant Innovation, National Institutes of Biomedical Innovation Health and Nutrition (NIBIOHN), Osaka, Japan
Onishi, M.;  Laboratory of Adjuvant Innovation, National Institutes of Biomedical Innovation Health and Nutrition (NIBIOHN), Osaka, Japan
Marichal, Thomas  ;  Université de Liège - ULiège > GIGA I3 - Immunophysiology
Ise, W.;  Laboratory of Lymphocyte Differentiation, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
Inoue, T.;  Laboratory of Lymphocyte Differentiation, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
Kurosaki, T.;  Laboratory of Lymphocyte Differentiation, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
Mizuguchi, K.;  Laboratory of Bioinformatics, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
Akira, S.;  Laboratory of Host Defense, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
Ishii, K. J.;  Laboratory of Vaccine Science, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan, Laboratory of Adjuvant Innovation, National Institutes of Biomedical Innovation Health and Nutrition (NIBIOHN), Osaka, Japan
Coban, C.;  Laboratory of Malaria Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka, Japan
More authors (9 more) Less
Language :
English
Title :
B cell-intrinsic MyD88 signaling controls IFN-γ-mediated early IgG2c class switching in mice in response to a particulate adjuvant
Publication date :
2019
Journal title :
European Journal of Immunology
ISSN :
0014-2980
eISSN :
1521-4141
Publisher :
Wiley-VCH Verlag
Volume :
49
Issue :
9
Pages :
1433-1440
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Japan Agency for Medical Research and Development, AMED: 16H05181, AMED 16ak0101010h0005, AMED J-PRIDE 17fm0208021h0001
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