Kolland, D. ; Kuhlmann, M.* ; de Almeida, G.P.* ; Köhler, A. ; Arifovic, A. ; von Strempel, A.* ; Pourjam, M.* ; Bolsega, S.* ; Wurmser, C.* ; Steiger, K.* ; Basic, M.* ; Neuhaus, K.* ; Schmidt-Weber, C.B. ; Stecher, B.* ; Zehn, D.* ; Ohnmacht, C.
A specific microbial consortium enhances Th1 immunity, improves LCMV viral clearance but aggravates LCMV disease pathology in mice.
Nat. Commun. 16:3902 (2025)
Anti-viral immunity can vary tremendously from individual to individual but mechanistic understanding is still scarce. Here, we show that a defined, low complex bacterial community (OMM12) but not the general absence of microbes in germ-free mice leads to a more potent immune response compared to the microbiome of specific-pathogen-free (SPF) mice after a systemic viral infection with LCMV Clone-13. Consequently, gnotobiotic mice colonized with OMM12 have more severe LCMV-induced disease pathology but also enhance viral clearance in the intestinal tract. Mechanistically, single-cell RNA sequencing analysis of adoptively transferred virus-specific T helper cells and endogenous T helper cells in the intestinal tract reveal a stronger pro-inflammatory Th1 profile and a more vigorous expansion in OMM12 than SPF mice. Altogether, our work highlights the causative function of the intestinal microbiome for shaping adaptive anti-viral immunity with implications for vaccination strategies and anti-cancer treatment regimens.
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Publication type
Article: Journal article
Document type
Scientific Article
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Editors
Keywords
Cd4(+) T-cells; Lymphocytic Choriomeningitis Virus; Thymus-expressed Chemokine; Transcription Factor; Gut Microbiota; Effector; Persistence; Responses; Memory; Mouse
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Language
english
Publication Year
2025
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0
HGF-reported in Year
2025
ISSN (print) / ISBN
2041-1723
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2041-1723
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Volume: 16,
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Article Number: 3902
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Nature Publishing Group
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London
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Peer reviewed
POF-Topic(s)
30202 - Environmental Health
Research field(s)
Allergy
PSP Element(s)
G-505400-001
G-505491-001
Grants
TUM Animal Research Center (ARC)
European Research Council (ERC Starting grant)
German Research Foundation
Deutsche Forschungsgemeinschaft (German Research Foundation)
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Erfassungsdatum
2025-05-10