Article ; Online: A TNF-IL-1 circuit controls Yersinia within intestinal pyogranulomas.
The Journal of experimental medicine
2024 Volume 221, Issue 3
Abstract: Tumor necrosis factor (TNF) is a pleiotropic inflammatory cytokine that mediates antimicrobial defense and granuloma formation in response to infection by numerous pathogens. We previously reported that Yersinia pseudotuberculosis colonizes the ... ...
Abstract | Tumor necrosis factor (TNF) is a pleiotropic inflammatory cytokine that mediates antimicrobial defense and granuloma formation in response to infection by numerous pathogens. We previously reported that Yersinia pseudotuberculosis colonizes the intestinal mucosa and induces the recruitment of neutrophils and inflammatory monocytes into organized immune structures termed pyogranulomas (PG) that control Yersinia infection. Inflammatory monocytes are essential for the control and clearance of Yersinia within intestinal PG, but how monocytes mediate Yersinia restriction is poorly understood. Here, we demonstrate that TNF signaling in monocytes is required for bacterial containment following enteric Yersinia infection. We further show that monocyte-intrinsic TNFR1 signaling drives the production of monocyte-derived interleukin-1 (IL-1), which signals through IL-1 receptors on non-hematopoietic cells to enable PG-mediated control of intestinal Yersinia infection. Altogether, our work reveals a monocyte-intrinsic TNF-IL-1 collaborative inflammatory circuit that restricts intestinal Yersinia infection. |
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MeSH term(s) | Humans ; Interleukin-1 ; Yersinia ; Yersinia Infections ; Yersinia pseudotuberculosis ; Tumor Necrosis Factor-alpha ; Monocytes |
Chemical Substances | Interleukin-1 ; Tumor Necrosis Factor-alpha |
Language | English |
Publishing date | 2024-02-16 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 218343-2 |
ISSN | 1540-9538 ; 0022-1007 |
ISSN (online) | 1540-9538 |
ISSN | 0022-1007 |
DOI | 10.1084/jem.20230679 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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