The abstract is read at the publisher; the summary is JClub's.
AhR acts as a transcriptional repressor in M-CSF-dependent human monocyte-derived macrophages, restraining acquisition of a resident-like (LYVE1+/FOLR2+) and pro-fibrotic phenotype.
- Why it matters: The field lacks clarity on how AhR tunes human monocyte-derived macrophage identity, especially how environmental sensing shapes anti-inflammatory and pro-fibrotic programs.
- What they did: Using integrated ChIP-Seq and transcriptomic profiling, the study found AhR activity enriched in M-Mac in a MAFB-dependent manner, directly binding regulatory regions of CD163, LGMN, and IL10; siRNA knockdown and CRISPR/Cas9 ablation tested function.
- The result: AhR deficiency accelerated and exacerbated resident-like and pro-fibrotic features, restricted the M-Mac anti-inflammatory response to TLR7 ligation, and limited tolerogenic T-cell effects, with FICZ and SR1 confirming control of the MAFB-driven program and autocrine IL-10 signaling.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.