1. Microbial metabolites control the thymic development of mucosal-associated invariant T cells
- Author
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Manal Sarkis, Jules Gilet, Kristina Niort, François Legoux, Yara El Morr, Olivier Lantz, Emanuele Procopio, Aurélie Balvay, Ahmed El Marjou, Aurélie Darbois, Frédéric Schmidt, Anne Foussier, Déborah Bellet, Celine Daviaud, Marion Salou, Sylvie Rabot, Bernhard Ryffel, Recherches en cancérologie, Université de Nantes (UN)-IFR26-Institut National de la Santé et de la Recherche Médicale (INSERM), Immunité et cancer (U932), Institut Curie-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Recherche en Transplantation et Immunologie (U1064 Inserm - CRTI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN), Centre de Recherche des Cordeliers (CRC (UMR_S 872)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Immunologie et Neurogénétique Expérimentales et Moléculaires (INEM), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), MICrobiologie de l'ALImentation au Service de la Santé (MICALIS), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Chimie biologique des membranes et ciblage thérapeutique (CBMCT - UMR 3666 / U1143), Institut Curie-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Curie [Paris]-Centre National de la Recherche Scientifique (CNRS), Université Paris Descartes - Paris 5 (UPD5)-Institut Curie [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Centre National de la Recherche Scientifique (CNRS)-Institut Curie [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC), and Université Paris Descartes - Paris 5 (UPD5)-Institut Curie-Institut National de la Santé et de la Recherche Médicale (INSERM)
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[SDV]Life Sciences [q-bio] ,Receptors, Antigen, T-Cell ,Thymus Gland ,Mucosal associated invariant T cell ,Major histocompatibility complex ,medicine.disease_cause ,Mucosal-Associated Invariant T Cells ,Minor Histocompatibility Antigens ,Mice ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Antigen ,Escherichia coli ,medicine ,[CHIM]Chemical Sciences ,Animals ,Germ-Free Life ,Symbiosis ,Uracil ,Receptor ,Lung ,ComputingMilieux_MISCELLANEOUS ,Ribitol ,030304 developmental biology ,Mice, Knockout ,Orphan receptor ,0303 health sciences ,Mucous Membrane ,Multidisciplinary ,biology ,Escherichia coli Proteins ,Histocompatibility Antigens Class I ,biology.organism_classification ,Gastrointestinal Microbiome ,Specific Pathogen-Free Organisms ,Cell biology ,Mice, Inbred C57BL ,Nucleotide Deaminases ,biology.protein ,Spleen ,Bacteria ,Sugar Alcohol Dehydrogenases ,030215 immunology - Abstract
Commensals rule the MAITrix Mucosal-associated invariant T (MAIT) cells play an important role in mucosal homeostasis. MAIT cells recognize microbial small molecules presented by the major histocompatibility complex class Ib molecule MR1. MAIT cells are absent in germ-free mice, and the mechanisms by which microbiota control MAIT cell development are unknown (see the Perspective by Oh and Unutmaz). Legoux et al. show that, in mice, development of MAIT cells within the thymus is governed by the bacterial product 5-(2-oxopropylideneamino)-6- d -ribitylaminouracil, which rapidly traffics from the mucosa to the thymus, where it is captured by MR1 and presented to developing MAIT cells. Constantinides et al. report that MAIT cell induction only occurs during a limited, early-life window and requires exposure to defined microbes that produce riboflavin derivatives. Continual interactions between MAIT cells and commensals in the skin modulates tissue repair functions. Together, these papers highlight how the microbiota can direct immune cell development and subsequent function at mucosal sites by secreting compounds that act like self-antigens. Science , this issue p. 494 , p. eaax6624 ; see also p. 419
- Published
- 2019
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