A Mouse Model for Severe Ulcerative Colitis
Author Information
Author(s): Kang Silvia S, Bloom Seth M, Norian Lyse A, Geske Michael J, Flavell Richard A, Stappenbeck Thaddeus S, Allen Paul M
Primary Institution: Washington University School of Medicine
Hypothesis
Multiple genetic hits to the regulatory machinery that inhibits immune activation in the intestine would generate more severe, reproducible pathology that mimics either ulcerative colitis or Crohn's disease.
Conclusion
The study developed a mouse model of fulminant ulcerative colitis that is sensitive to both anticytokine therapy and broad-spectrum antibiotics.
Supporting Evidence
- The new mouse model developed showed rapid and severe symptoms of ulcerative colitis.
- Treatment with antibiotics completely inhibited the disease in the mouse model.
- Elevated levels of proinflammatory cytokines were observed in the diseased mice.
- Neutralization of IFNγ and TNFα significantly reduced the severity of colitis.
- Pathology in the dnKO mice was characterized by diffuse mucosal damage and high immune cell infiltration.
Takeaway
Researchers created a special mouse that gets really sick from a gut disease like ulcerative colitis, and they found that giving it antibiotics can help it get better.
Methodology
The study involved creating a new mouse line with defects in TGFβRII and IL-10R2 signaling and observing the resulting disease pathology.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website