Cytokine Production by Human Colonic Intraepithelial Lymphocytes
Author Information
Author(s): P. Hoang, H. R. Dalton, H. J. de Silv, D. P. Jewell
Primary Institution: Service de Gastro-Enterologie, Université Catholique de Louvain, Bruxelles, Belgium; The Gastroenterology Unit, Radcliffe Infirmary, Oxford, UK
Hypothesis
Abnormal amounts of IL-2 and T-interferon are produced by human colonic IEL in patients with ulcerative colitis.
Conclusion
Colonic intraepithelial lymphocytes produce small amounts of T-interferon and IL-2, with no significant difference between control and ulcerative colitis patients.
Supporting Evidence
- Colonic IEL produced low concentrations of T-interferon and IL-2 when stimulated with PHA.
- Significantly higher cytokine production was observed in stimulated IEL compared to unstimulated IEL.
- There was no significant difference in cytokine production between control and ulcerative colitis patients.
Takeaway
The cells in the gut that help fight infections make tiny amounts of two important substances, and this amount is about the same in healthy people and those with a certain gut disease.
Methodology
The study involved isolating intraepithelial lymphocytes from colonic resection specimens and measuring cytokine production using ELISA techniques.
Limitations
The study only included a small number of patients and focused on specific cytokines.
Participant Demographics
Nine control patients (median age 68 years) and six patients with ulcerative colitis (median age 35 years).
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
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