Role of interferon alpha in promoting T helper cell type 1 responses in the small intestine in coeliac disease
| Autor: | G, Monteleone, S L, Pender, E, Alstead, A C, Hauer, P, Lionetti, C, McKenzie, T T, MacDonald |
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| Rok vydání: | 2001 |
| Předmět: |
Adolescent
Blotting Western Alpha interferon Case Reports Biology Coeliac disease Interferon-gamma Intestinal mucosa Leukemia Myelogenous Chronic BCR-ABL Positive medicine Humans Enteropathy Interferon gamma Intestinal Mucosa Child Interferon alfa Gastroenterology Interferon-alpha T helper cell T-Lymphocytes Helper-Inducer Middle Aged medicine.disease Small intestine Celiac Disease medicine.anatomical_structure Case-Control Studies Child Preschool Immunology Electrophoresis Polyacrylamide Gel Female medicine.drug |
| Zdroj: | Gut. 48(3) |
| ISSN: | 0017-5749 |
| Popis: | Coeliac disease (CD) is caused by a CD4 T helper cell type 1 (Th1) response in the small intestinal mucosa to dietary gluten. As the major Th1 inducing cytokine, interleukin 12, is undetectable in CD gut mucosa, the mechanism by which Th1 effector cells are generated remains unknown. Interferon (IFN) α, a cytokine capable of promoting IFN-γ synthesis, has been implicated in the development of Th1 mediated immune diseases. Here we report a case of CD-like enteropathy in a patient receiving IFN-α for chronic myeloid leukaemia. Morphological assessment of duodenal biopsies taken from the patient showed total villous atrophy, crypt cell hyperplasia, and a high number of CD3+ intraepithelial lymphocytes. Both antigliadin antibodies and antiendomysial antibodies were positive. RNA analysis revealed pronounced expression of IFN-γ. Withdrawal of gluten from the diet resulted in a patchy improvement in intestinal morphology, normalisation of laboratory parameters, and resolution of clinical symptoms. By western blot analysis, IFN-α protein was seen in the duodenal mucosa from untreated CD patients but not in controls. This was associated with marked expression of IFN-γ protein in CD mucosa. Collectively, these results suggest a role for IFN-α in promoting Th1 responses to gluten. Keywords: coeliac disease; interferon; small intestine; T helper cell response |
| Databáze: | OpenAIRE |
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