Document Type

Article

Publication Date

11-9-2023

Keywords

JGM, Humans, Male, Cell Cycle Proteins, Interferon-gamma, Interleukin-12, Interleukin-23, Janus Kinase 2, Mycobacterium, Mycobacterium Infections, Oncogene Proteins

JAX Source

Cell. 2023;186(23):5114-34.

ISSN

1097-4172

PMID

37875108

DOI

https://doi.org/10.1016/j.cell.2023.09.024

Abstract

Human inherited disorders of interferon-gamma (IFN-γ) immunity underlie severe mycobacterial diseases. We report X-linked recessive MCTS1 deficiency in men with mycobacterial disease from kindreds of different ancestries (from China, Finland, Iran, and Saudi Arabia). Complete deficiency of this translation re-initiation factor impairs the translation of a subset of proteins, including the kinase JAK2 in all cell types tested, including T lymphocytes and phagocytes. JAK2 expression is sufficiently low to impair cellular responses to interleukin-23 (IL-23) and partially IL-12, but not other JAK2-dependent cytokines. Defective responses to IL-23 preferentially impair the production of IFN-γ by innate-like adaptive mucosal-associated invariant T cells (MAIT) and γδ T lymphocytes upon mycobacterial challenge. Surprisingly, the lack of MCTS1-dependent translation re-initiation and ribosome recycling seems to be otherwise physiologically redundant in these patients. These findings suggest that X-linked recessive human MCTS1 deficiency underlies isolated mycobacterial disease by impairing JAK2 translation in innate-like adaptive T lymphocytes, thereby impairing the IL-23-dependent induction of IFN-γ.

Comments

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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