Enkephalin-mediated modulation of basal somatic sensitivity by regulatory T cells in mice - Sorbonne Université
Journal Articles eLife Year : 2024

Enkephalin-mediated modulation of basal somatic sensitivity by regulatory T cells in mice

Julien Schopp
Gilles Dietrich
Cedric Peirs

Abstract

CD4 + CD25 + Foxp3 + regulatory T cells (Treg) have been implicated in pain modulation in various inflammatory conditions. However, whether Treg cells hamper pain at steady state and by which mechanism is still unclear. From a meta-analysis of the transcriptomes of murine Treg and conventional T cells (Tconv), we observe that the proenkephalin gene ( Penk ), encoding the precursor of analgesic opioid peptides, ranks among the top 25 genes most enriched in Treg cells. We then present various evidence suggesting that Penk is regulated in part by members of the Tumor Necrosis Factor Receptor (TNFR) family and the transcription factor Basic leucine zipper transcription faatf-like (BATF). Using mice in which the promoter activity of Penk can be tracked with a fluorescent reporter, we also show that Penk expression is mostly detected in Treg and activated Tconv in non-inflammatory conditions in the colon and skin. Functionally, Treg cells proficient or deficient for Penk suppress equally well the proliferation of effector T cells in vitro and autoimmune colitis in vivo. In contrast, inducible ablation of Penk in Treg leads to heat hyperalgesia in both male and female mice. Overall, our results indicate that Treg might play a key role at modulating basal somatic sensitivity in mice through the production of analgesic opioid peptides.
Fichier principal
Vignette du fichier
Aubert et al-2024.pdf (4.96 Mo) Télécharger le fichier
Origin Publisher files allowed on an open archive
Licence

Dates and versions

hal-04678921 , version 1 (02-09-2024)

Licence

Identifiers

Cite

Nicolas Aubert, Madeleine Purcarea, Julien Novarino, Julien Schopp, Alexis Audibert, et al.. Enkephalin-mediated modulation of basal somatic sensitivity by regulatory T cells in mice. eLife, 2024, 13, ⟨10.7554/eLife.91359⟩. ⟨hal-04678921⟩
38 View
10 Download

Altmetric

Share

More