ILC precursors differentiate into metabolically distinct ILC1-like cells during Mycobacterium tuberculosis infection

Dan Corral, Alison Charton, Maria Eduarda Zancanaro Krauss, Eve Blanquart, Florence Levillain, Emma Lefrançais, Tamara Sneperger, Zoï Vahlas, Jean-Philippe Girard, Gérard Eberl, Yannick Poquet, Jean-Charles Guéry, Rafael J. Arguello, Yasmine Belkaid, Katrin D Mayer-Barber, Matthew Hepworth, Olivier Neyrolles, Denis Hudrisier

Research output: Contribution to journalArticlepeer-review

Abstract

Tissue-resident innate lymphoid cells (ILCs) regulate tissue homeostasis, protect against pathogens at mucosal surfaces and are key players at the interface of innate and adaptive immunity. How ILCs adapt their phenotype and function to environmental cues within tissues remains to be fully understood. Here, we show that Mycobacterium tuberculosis infection alters the phenotype and function of lung IL-18R+ ILC toward a protective interferon--producing ILC1-like population. This differentiation is controlled by type 1 cytokines and is associated with a glycolytic program. Moreover, a BCG-driven type I milieu enhances the early generation of ILC1-like cell during secondary challenge with Mycobacterium tuberculosis (Mtb). Collectively, our data reveal how tissue-resident ILCs adapt to type 1 inflammation toward a pathogen tailored immune response.
Original languageEnglish
JournalCell Reports
Publication statusAccepted/In press - 29 Mar 2022

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