Dietary Supplementation with Nondigestible Oligosaccharides Reduces Allergic Symptoms and Supports Low Dose Oral Immunotherapy in a Peanut Allergy Mouse Model

Authors Laura Wagenaar , Marianne Bol-Schoenmakers , Giulio Giustarini , Marlotte M. Vonk , Betty C.A.M. van Esch , Léon M.J. Knippels , Johan Garssen , Joost Smit , Raymond Pieters
Published in Molecular nutrition and food research
Publication date 13 August 2018
Research groups Innovative Testing in Life Sciences and Chemistry
Type Article

Summary

Abstract 1 Scope A major downside of oral immunotherapy (OIT) for food allergy is the risk of severe side effects. Non‐digestible short‐ and long‐chain fructo‐oligosaccharides (scFOS/lcFOS) reduce allergy development in murine models. Therefore, it is hypothesized that scFOS/lcFOS can also support the efficacy of OIT in a peanut allergy model. 2 Methods and Results After sensitization to peanut extract (PE) using cholera toxin, C3H/HeOuJ mice are fed a 1% scFOS/lcFOS or control diet and receive OIT (1.5 or 15 mg PE). Hereafter, mice are exposed to PE via different routes to determine the safety and efficacy of treatment in clinical outcomes, PE‐specific antibody production, and numbers of various immune cells. scFOS/lcFOS increases short‐chain fatty acid levels in the caecum and reduce the acute allergic skin response and drop in body temperature after PE exposure. Interestingly, 15 mg and 1.5 mg OIT with scFOS/lcFOS induce protection against anaphylaxis, whereas 1.5 mg OIT alone does not. OIT, with or without scFOS/lcFOS, induces PE‐specific immunoglobulin (Ig) IgG and IgA levels and increases CD103+ dendritic cells in the mesenteric lymph nodes. 3 Conclusions scFOS/lcFOS and scFOS/lcFOS combined with low dose OIT are able to protect against a peanut‐allergic anaphylactic response.

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  • Raymond Pieters | Professor | Research group Innovative Testing in Life Sciences & Chemistry
    Raymond Pieters
    • Professor
    • Research groups: Innovative Testing in Life Sciences and Chemistry

Language English
Published in Molecular nutrition and food research
Key words food allergy

Innovative Testing in Life Sciences and Chemistry