Microbiome-induced antigen-presenting cell recruitment coordinates skin and lung allergic inflammation.

Details

Serval ID
serval:BIB_0DA90E297789
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Microbiome-induced antigen-presenting cell recruitment coordinates skin and lung allergic inflammation.
Journal
The Journal of allergy and clinical immunology
Author(s)
Ubags N.D., Trompette A., Pernot J., Nibbering B., Wong N.C., Pattaroni C., Rapin A., Nicod L.P., Harris N.L., Marsland B.J.
ISSN
1097-6825 (Electronic)
ISSN-L
0091-6749
Publication state
Published
Issued date
03/2021
Peer-reviewed
Oui
Volume
147
Number
3
Pages
1049-1062.e7
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
Allergic skin inflammation often presents in early childhood; however, little is known about the events leading to its initiation and whether it is transient or long-term in nature.
We sought to determine the immunologic rules that govern skin inflammation in early life.
Neonatal and adult mice were epicutaneously sensitized with allergen followed by airway allergen challenge. Epicutaneous application of labeled allergen allowed for determination of antigen uptake and processing by antigen-presenting cells. RNAseq and microbiome analysis was performed on skin from neonatal and adult specific pathogen-free and germ-free mice.
A mixed T <sub>H</sub> 2/T <sub>H</sub> 17 inflammatory response in the skin and the lungs of adult mice was observed following sensitization and challenge. Comparatively, neonatal mice did not develop overt skin inflammation, but exhibited systemic release of IL-17a and a T <sub>H</sub> 2-dominated lung response. Mechanical skin barrier disruption was not sufficient to drive allergic skin inflammation, although it did promote systemic immune priming. Skin of neonatal mice and adult germ-free mice was seeded with low numbers of antigen-presenting cells and impaired chemokine and alarmin production. Enhanced chemokine and alarmin production, and seeding of the skin with antigen-presenting cells capable of instructing recruited cells to elicit their effector function, was, at least in part, dependent on formation of the microbiome, and consequently contributed to the development of overt skin disease.
These data shed light on the principles that underlie allergic inflammation in different tissues and highlight a window of opportunity that might exist for early-life prevention of allergic diseases.
Keywords
airway inflammation, allergy, early life, epicutaneous sensitization, immune regulation, Epicutaneous sensitization, immune maturation
Pubmed
Web of science
Open Access
Yes
Create date
20/07/2020 11:22
Last modification date
30/04/2022 5:36
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