ArticleProceedings of the National Academy of Sciences of the United States of America2013
MAIT cells are critical for optimal mucosal immune responses during in vivo pulmonary bacterial infection.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05598346 (Significance and Biological Importance of Mucosal Associated Invariant T Cells in Inflammatory Bowel Disease Patients), which is not on this map. Cited by 229 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Significance and Biological Importance of Mucosal Associated Invariant T Cells in Inflammatory Bowel Disease Patients
Who cites it
229 citing papers in PubMed, 362 citations in OpenAlex.
- Probiotic supplementation in marathonists and its impact on lymphocyte population and function after a marathon: a randomized placebo-controlled double-blind study.Scientific reports · 2020Trial
- Opsonization-Enhanced Antigen Presentation by MR1 Activates Rapid Polyfunctional MAIT Cell Responses Acting as an Effector Arm of Humoral Antibacterial Immunity.Journal of immunology (Baltimore, Md. : 1950) · 2020Trial
- Mucosal-associated invariant T cells and Vδ2Clinical and experimental immunology · 2020Trial
- Vitamin D treatment modulates immune activation in cystic fibrosis.Clinical and experimental immunology · 2017Trial
- Gut archaea drive human MAIT cell responses.bioRxiv : the preprint server for biology · 2026Article
- Immunopeptidomics reveals conserved and abundant Francisella tularensis proteins as immunogenic CD4 T cell antigens in mice.PLoS pathogens · 2026Article
- Avoidance of MAIT cells is an essential determinant ofProceedings of the National Academy of Sciences of the United States of America · 2026Article
- Mucosal-associated invariant T (MAIT) cells are reduced and dysfunctional in acute melioidosis.Scientific reports · 2026Article
- Allelic variation alters expression and antigen presentation of MR1 allomorphs.The Journal of biological chemistry · 2026Article
- The PGDCommunications biology · 2026Article
- Antibiotic use in early life impairs MAIT cell-mediated immunity in adulthood.The Journal of experimental medicine · 2026Article
- IL-21 Selectively Augments Cytotoxic Potential of Antigen-Activated MAIT Cells.European journal of immunology · 2026Article
- Dual Roles of MAIT Cells in the Tumor Microenvironment: Implications for Cancer Immunity and Therapy.Immune network · 2026Review
- Review
- Mucosal-Associated Invariant T (MAIT) Cells in Skin Immunity: Metabolic Regulation, Tissue Adaptation, and Roles in Skin Inflammation and Disease.JID innovations : skin science from molecules to population health · 2026Review
- Mucosal-Associated Invariant T Cells: Origins, Biological Functions, Diseases, and Therapeutic Targets.MedComm · 2025Review
- Immune cells display an abnormal maturation and a proinflammatory profile in telomere biology disorders.Blood advances · 2025Article
- Circulating Soluble Factors and T-Cell Subsets as Immunological Predictors of Therapy Response in Human Cutaneous Leishmaniasis.The Journal of infectious diseases · 2025Article
- Single-cell map of innate-like lymphocyte response toiScience · 2025Article
- MAIT cells protect against sterile lung injury.Cell reports · 2025Article
169 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mucosa-associated invariant T (MAIT) cells are "innate" T cells that express an invariant T-cell receptor α-chain restricted by the nonclassical MHC class I molecule MHC-related protein 1 (MR1). A recent discovery that MR1 presents vitamin B metabolites, presumably from pathogenic and/or commensal bacteria, distinguishes MAIT cells from peptide- or lipid-recognizing αβ T cells in the immune system. MAIT cells are activated by a wide variety of bacterial strains in vitro, but their role in defense against infectious assaults in vivo remains largely unknown. To investigate how MAIT cells contribute to mucosal immunity in vivo, we used a murine model of pulmonary infection by using the live vaccine strain (LVS) of Francisella tularensis. In the early acute phase of infection, MAIT cells expanded robustly in the lungs, where they preferentially accumulated after reaching their peak expansion in the late phase of infection. Throughout the course of infection, MAIT cells produced the critical cytokines IFN-γ, TNF-α, and IL-17A. Mechanistic studies showed that MAIT cells required both MR1 and IL-12 40 kDa subunit (IL-12p40) signals from infected antigen presenting cells to control F. tularensis LVS intracellular growth. Importantly, pulmonary F. tularensis LVS infection of MR1-deficient (MR1(-/-)) mice, which lack MAIT cells, revealed defects in early mucosal cytokine production, timely recruitment of IFN-γ-producing CD4(+) and CD8(+) T cells to the infected lungs, and control of pulmonary F. tularensis LVS growth. This study provides in vivo evidence demonstrating that MAIT cells are an important T-cell subset with activities that influence the innate and adaptive phases of mucosal immunity.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.