| Title: |
A conserved Bacteroidetes antigen induces anti-inflammatory intestinal T lymphocytes |
| Authors: |
Bousbaine, Djenet; Fisch, Laura I.; London, Mariya; Bhagchandani, Preksha; Rezende de Castro, Tiago B.; Mimee, Mark; Olesen, Scott; Reis, Bernardo S.; VanInsberghe, David; Bortolatto, Juliana; Poyet, Mathilde; Cheloha, Ross W.; Sidney, John; Ling, Jingjing; Gupta, Aaron; Lu, Timothy K.; Sette, Alessandro; Alm, Eric J.; Moon, James J.; Victora, Gabriel D.; Mucida, Daniel; Ploegh, Hidde L.; Bilate, Angelina M. |
| Source: |
Science ; volume 377, issue 6606, page 660-666 ; ISSN 0036-8075 1095-9203 |
| Publisher Information: |
American Association for the Advancement of Science (AAAS) |
| Publication Year: |
2022 |
| Description: |
The microbiome contributes to the development and maturation of the immune system. In response to commensal bacteria, intestinal CD4 + T lymphocytes differentiate into functional subtypes with regulatory or effector functions. The development of small intestine intraepithelial lymphocytes that coexpress CD4 and CD8αα homodimers (CD4IELs) depends on the microbiota. However, the identity of the microbial antigens recognized by CD4 + T cells that can differentiate into CD4IELs remains unknown. We identified β-hexosaminidase, a conserved enzyme across commensals of the Bacteroidetes phylum, as a driver of CD4IEL differentiation. In a mouse model of colitis, β-hexosaminidase–specific lymphocytes protected against intestinal inflammation. Thus, T cells of a single specificity can recognize a variety of abundant commensals and elicit a regulatory immune response at the intestinal mucosa. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1126/science.abg5645 |
| Availability: |
https://doi.org/10.1126/science.abg5645; https://www.science.org/doi/pdf/10.1126/science.abg5645 |
| Accession Number: |
edsbas.933CA30D |
| Database: |
BASE |