The abstract is read at the publisher; the summary is JClub's.
MAIT cells drive early fibrogenesis in the carbon tetrachloride mouse model, exacerbating myofibroblast activation and matrix deposition during fibrosis initiation.
- Why it matters: The timing and mechanism by which MAIT cells modulate fibrogenesis across tissue contexts are unclear, despite conflicting reports of their roles in repair and fibrosis.
- What they did: In MR1- and MAIT cell-sufficient versus -deficient mice, MAIT cells were assessed during injury for hepatocellular damage, myofibroblast activation, matrix deposition, MAIT17 polarization, and profibrotic transcriptional changes.
- The result: MAIT cells limited hepatic regulatory T (T reg ) cell accumulation, and in vivo T reg cell inactivation removed MAIT-dependent differences in fibrosis severity, suggesting a targetable MAIT–T reg axis in early disease.
The findingWhy it mattersWhat they didThe result
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