Journal
GUT MICROBES
Volume 8, Issue 4, Pages 400-411Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/19490976.2017.1299846
Keywords
antibiotics; bacterial translocation; goblet cells
Categories
Funding
- NIH [P30 CA91842, P30 DK052574, DK097317, AI112626, AI131342]
- Children's Discovery Institute Grant [MD-II-2015-481]
- AGA Providence Food Intolerance Award
- [DK097893]
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Bacterial translocation is defined as the passage of live bacteria from the gut lumen to distant sites. Gut commensal bacteria translocation has been attributed to 'leakiness', or 'barrier breach' of the intestinal epithelium, allowing live bacteria to cross an inappropriately permeable barrier and disseminate to distant sites. Alternatively, studies suggest dendritic cells directly capture luminal commensal bacteria and transport them to distant sites in the steady-state by extending dendrites between epithelial cells into the lumen. Recently we identified translocation of commensal gut bacteria following antibiotics was associated with the formation of goblet cell associated antigen passages (GAPs) in the colon and dependent upon goblet cells (GCs). The translocation of native gut commensal bacteria resulted in low-level inflammatory responses and potentiated mucosal damage in response to concurrent epithelial injury. Here we extend these observations and demonstrate properties of colonic GAPs and observations supporting their priority in the translocation of colonic commensal bacteria.
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