How IDO Affects Gut Cell Turnover and Worm Infection in Mice
Author Information
Author(s): Louise V. Bell, Else K. J.
Primary Institution: University of Manchester
Hypothesis
IDO contributes to the innate susceptibility of SCID mice to Trichuris muris infection by regulating colonic epithelial cell turnover.
Conclusion
Inhibiting IDO in SCID mice leads to increased epithelial cell turnover and significant expulsion of the Trichuris muris parasite.
Supporting Evidence
- IDO expression is upregulated in the gut during chronic infection with Trichuris muris.
- 1-MT treatment resulted in a significant reduction in parasite load by day 21 post-infection.
- Immunofluorescence staining indicated concentrated IDO levels in goblet cells within the caecal epithelium.
- BrdU+ cells were detected significantly higher up the crypt axis in T. muris-infected mice treated with 1-MT.
Takeaway
When a specific enzyme called IDO is blocked in mice, their gut cells turn over faster, helping them get rid of a worm infection.
Methodology
SCID mice were infected with Trichuris muris and treated with the IDO inhibitor 1-methyl-tryptophan, with assessments of worm burden and epithelial cell turnover.
Potential Biases
Potential bias in interpreting results due to the use of a single mouse model.
Limitations
The study primarily focuses on SCID mice, which may not fully represent immune responses in other mouse strains.
Participant Demographics
SCID mice, a type of immunodeficient mouse.
Statistical Information
P-Value
0.0007
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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