Staphylococcus aureus-specific skin resident memory T cells protect against bacteria colonization but exacerbate atopic dermatitis-like flares in mice.

Autor:	Braun C; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Service de Pédiatrie, Pneumologie, Allergologie, Mucoviscidose, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Bron, France., Badiou C; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France., Guironnet-Paquet A; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Etablissement Français du Sang Auvergne Rhône-Alpes, Apheresis Unit, Hôpital Lyon Sud, Pierre-Bénite, France., Iwata M; Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan., Lenief V; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France., Mosnier A; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France., Beauclair C; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France., Renucci E; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France., Bouschon P; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France., Cuzin R; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France., Briend Y; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France., Patra V; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France., Patot S; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France., Scharschmidt TC; Department of Dermatology, University of California, San Francisco, Calif., van Wamel W; Department of Medical Microbiology and Infectious Diseases, Erasmus Medical Center, Rotterdam, The Netherlands., Lemmens N; Department of Medical Microbiology and Infectious Diseases, Erasmus Medical Center, Rotterdam, The Netherlands., Nakajima S; Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan., Vandenesh F; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Service de Microbiologie Clinique, Groupement Hospitalier Nord, Hospices Civils de Lyon, Bron, France; Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, Lyon, France., Nicolas JF; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Service d'Allergologie et Immunologie Clinique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre-Bénite, France., Lina G; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Service de Microbiologie Clinique, Groupement Hospitalier Nord, Hospices Civils de Lyon, Bron, France; Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, Lyon, France., Nosbaum A; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Service d'Allergologie et Immunologie Clinique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre-Bénite, France., Vocanson M; Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France. Electronic address: marc.vocanson@inserm.fr.
Jazyk:	angličtina
Zdroj:	The Journal of allergy and clinical immunology [J Allergy Clin Immunol] 2024 Aug; Vol. 154 (2), pp. 355-374. Date of Electronic Publication: 2024 May 09.
DOI:	10.1016/j.jaci.2024.03.032
Abstrakt:	Background: The contribution of Staphylococcus aureus to the exacerbation of atopic dermatitis (AD) is widely documented, but its role as a primary trigger of AD skin symptoms remains poorly explored. Objectives: This study sought to reappraise the main bacterial factors and underlying immune mechanisms by which S aureus triggers AD-like inflammation. Methods: This study capitalized on a preclinical model, in which different clinical isolates were applied in the absence of any prior experimental skin injury. Results: The development of S aureus-induced dermatitis depended on the nature of the S aureus strain, its viability, the concentration of the applied bacterial suspension, the production of secreted and nonsecreted factors, as well as the activation of accessory gene regulatory quorum sensing system. In addition, the rising dermatitis, which exhibited the well-documented AD cytokine signature, was significantly inhibited in inflammasome adaptor apoptosis-associated speck-like protein containing a CARD domain- and monocyte/macrophage-deficient animals, but not in T- and B-cell-deficient mice, suggesting a major role for the innate response in the induction of skin inflammation. However, bacterial exposure generated a robust adaptive immune response against S aureus, and an accumulation of S aureus-specific γδ and CD4 + tissue resident memory T cells at the site of previous dermatitis. The latter both contributed to worsen the flares of AD-like dermatitis on new bacteria exposures, but also, protected the mice from persistent bacterial colonization. Conclusions: These data highlight the induction of unique AD-like inflammation, with the generation of proinflammatory but protective tissue resident memory T cells in a context of natural exposure to pathogenic S aureus strains. Competing Interests: Disclosure statement This study was supported by institutional grants from the Institut National de la Santé et de la Recherche Médicale (INSERM) and from Pfizer. Disclosure of potential conflict of interest: The authors declare that they have no relevant conflicts of interest. (Copyright © 2024 American Academy of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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