Inflammation-induced expression of the alarmin interleukin 33 can be suppressed by galacto-oligosaccharides
| Autor: | Verheijden, Kim A T, Akbari, Peyman, Willemsen, Linette E M, Kraneveld, Aletta D, Folkerts, Gert, Garssen, Johan, Fink-Gremmels, Johanna, Braber, Saskia, Sub Immunopharmacology, Sub Airway in vivo Pharmacology, LS Pharma, Pharmacology |
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| Přispěvatelé: | Sub Immunopharmacology, Sub Airway in vivo Pharmacology, LS Pharma, Pharmacology |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Male
Asthma model Immunology Interleukin-1 Receptor-Like 1 Protein Oligosaccharides Inflammation Biology Galacto-oligosaccharides Intestinal permeability Immunomodulation Mice Immune system Intestinal mucosa Interleukin 33 Immunity Taverne medicine Immunology and Allergy Alarmins Animals House-dust mite Antigens Dermatophagoides RNA Messenger Intestinal Mucosa Receptor Immunity Mucosal Mice Inbred BALB C Galactosides General Medicine Receptors Interleukin medicine.disease Interleukin-33 Diet medicine.symptom Trichothecenes Bronchoalveolar Lavage Fluid Immunosuppressive Agents |
| Zdroj: | International Archives of Allergy and Immunology, 167(2), 127. S. Karger AG |
| ISSN: | 1018-2438 |
| Popis: | Background: The alarmin interleukin 33 (IL-33) and its receptor ST2 play an important role in mucosal barrier tissues, and seem to be crucial for Th2-cell mediated host defense. Galacto-oligosaccharides (GOS), used in infant formulas, exhibit gut and immune modulatory effects. To enhance our understanding of the immunomodulatory capacity of GOS, this study investigated the impact of dietary GOS intervention on IL-33 and ST2 expression related to intestinal barrier dysfunction and asthma. Methods: B6C3F1 and BALB/c mice were fed a control diet with or without 1% GOS. To simulate intestinal barrier dysfunction, B6C3F1 mice received a gavage with the mycotoxin deoxynivalenol (DON). To mimic asthma-like inflammatory airway responses, BALB/c mice were sensitized on day 0 and challenged on days 7-11 with house-dust mite (HDM) allergen. Samples from the intestines and lungs were collected for IL-33 and ST2 analysis by qRT-PCR, immunoblotting and immunohistochemistry. Results: Dietary GOS counteracted the DON-induced IL-33 mRNA expression and changed the IL-33 distribution pattern in the mouse small intestine. The IL-33 mRNA expression was positively correlated to the intestinal permeability. A strong positive correlation was also observed between IL-33 mRNA expression in the lung and the number of bronchoalveolar fluid cells. Reduced levels of IL-33 protein, altered IL-33 distribution and reduced ST2 mRNA expression were observed in the lungs of HDM-allergic mice after GOS intervention. Conclusions: Dietary GOS mitigated IL-33 at the mucosal surfaces in a murine model for intestinal barrier dysfunction and HDM-induced asthma. This promising effect may open up new avenues to use GOS not only as a prebiotic in infant nutrition, but also as a functional ingredient that targets inflammatory processes and allergies associated with IL-33 expression. |
| Databáze: | OpenAIRE |
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