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November 1, 2025The Journal of ImmunologyOpen Access

Immunosuppressive role of mucosal-associated invariant T (MAIT) cells in inflammatory skin disease 2798

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Authors

GCGrace CrosslandLMLindsay MendykaMCMichael G. Constantinides

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Overview

Findings reveal that MAIT cell-driven immunosuppression impacts skin lesions in chronic inflammatory disease, suggesting a therapeutic target.

Key Points

  • To investigate the role of mucosal-associated invariant T (MAIT) cells in chronic inflammatory skin disease.
  • Utilized MAIT cell specific tetramer in mouse models of chronic inflammatory skin disease.
  • Compared MAIT cell levels in mice with cutaneous lupus erythematosus versus control.
  • Examined the effects of topical MAIT cell antigen, 5-OP-RU, on inflammatory cytokine gene expression and Treg expansion.
  • MAIT cells are significantly reduced in the skin of mice with chronic inflammatory disease.
  • Topical treatment with 5-OP-RU increased MAIT cell levels and decreased inflammatory genes (Il6, Tnf).
  • Short-term MAIT cell expansion led to lasting resolution of skin lesions in mice.

Cite This Study

Crossland et al. (2025) studied this question.

synapsesocial.com/papers/69254f8ec0ce034ddc3597a9https://doi.org/10.1093/jimmun/vkaf283.679
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Antigen-driven MAIT cell activation restores skin Treg levels and attenuates lupus-like skin inflammation 22575342026
  2. 2MAIT cells support Treg response to UV light in healthy skin and restrain CD8 activation in lupus skin 22575002026
  3. 3Mucosal‐Associated Invariant T Cells in Health and Disease2026
  4. 4MAIT cells exacerbate colonic inflammation in a genetically diverse murine model of spontaneous colitis2025 · 9 citations
  5. 5Mucosal‐associated invariant T cells modulate innate immune cells and inhibit colon cancer growth2024 · 12 citations