Friends in Low Places: Intestinal Commensals Limit Colitis through Molecular Mimicry

Publication date: 19 October 2017
Source:Cell, Volume 171, Issue 3
Author(s): D. Garrett Brown, June L. Round
Inflammatory bowel disease is thought to arise from inappropriate inflammation to gut bacteria, yet mechanisms preventing these responses remain elusive. In this issue of Cell, Nanjundappa et al. report that Bacteroides share an epitope with a pancreas-specific peptide that induces protective CD8+ T cells, identifying molecular mimicry as a mechanism to enforce tolerance in the gut.

Teaser

Inflammatory bowel disease is thought to arise from inappropriate inflammation to gut bacteria, yet mechanisms preventing these responses remain elusive. In this issue of Cell, Nanjundappa et al. report that Bacteroides share an epitope with a pancreas-specific peptide that induces protective CD8+ T cells, identifying molecular mimicry as a mechanism to enforce tolerance in the gut.


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