How mucosal-associated invariant T (MAIT) cells acquire memory-like features after infection and the factors that control this process have been unclear. A study now defines two subsets of antigen-adapted MAIT cells emerging after immunization that differ in functions, lung localization and metabolic requirements.
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Dominguez-Villar, M. Host protection by two memory-like MAIT subsets. Nat Cell Biol 25, 802–804 (2023). https://doi.org/10.1038/s41556-023-01149-1
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DOI: https://doi.org/10.1038/s41556-023-01149-1