Induction and suppression of allergic diarrhea and systemic anaphylaxis in a murine model of food allergy

JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY

卷:129

Article

Kucuk, Zeynep Yesim³  Strait, Richard⁴  Khodoun, Marat V.^2,6  Mahler, Ashley⁴  Hogan, Simon³  Finkelman, Fred D.^1,5,6 

[1] Cincinnati Vet Affairs Med Ctr, Dept Med, Cincinnati, OH 45220 USA

[2] Cincinnati Vet Affairs Med Ctr, Dept Res, Cincinnati, OH 45220 USA

[3] Cincinnati Childrens Hosp Med Ctr, Dept Pediat, Div Allergy & Immunol, Cincinnati, OH USA

[4] Cincinnati Childrens Hosp Med Ctr, Dept Pediat, Div Emergency Med, Cincinnati, OH USA

[5] Cincinnati Childrens Hosp Med Ctr, Dept Pediat, Div Immunobiol, Cincinnati, OH USA

[6] Univ Cincinnati, Coll Med, Dept Internal Med, Div Immunol Allergy & Rheumatol, Cincinnati, OH 45221 USA

关键词: IgA;    IgE;    IgG;    J chain;    polymeric immunoglobulin receptor;   

DOI  :  10.1016/j.jaci.2012.03.004

来源: Elsevier

【 摘 要 】

Background: The clinical manifestations of food allergy include diarrhea and systemic anaphylaxis (shock), which can occur together or by themselves in different subjects. Although ingested food antigens need to be absorbed to induce shock, it is not known whether they need to be absorbed to induce diarrhea. Objective: We sought to identify mechanisms that determine whether food allergy induces diarrhea versus shock and determine whether diarrhea requires absorption of ingested antigens. Methods: These issues were studied in mice in active, passive, and hybrid immunization models. The active model was used to determine the allergic diarrhea susceptibility of J chain-and polymeric immunoglobulin receptor-deficient mice, which are unable to secrete IgA. The hybrid model was used to determine whether intravenously administered antigen-specific IgG antibody, which is not secreted into the gut, can protect against allergic diarrhea, as well as shock. Results: Shock, but not diarrhea, was induced in naive mice by using intravenous IgE anti-trinitrophenyl (TNP) antibody, followed by oral TNP-BSA, whereas both were induced in mice presensitized with intraperitoneal ovalbumin/alum plus oral ovalbumin. More TNP-BSA was required to induce shock than diarrhea in presensitized mice, and intravenous IgG anti-TNP antibody, which is not secreted into the gut, protected these mice against both diarrhea and shock. Consistent with this, chicken ovalbumin-immunized J chain-and polymeric immunoglobulin receptor-deficient mice, which have high serum IgA levels but little intestinal IgA, resisted diarrhea induction. Conclusion: Intestinal immunity and oral antigen dose determine whether diarrhea, systemic anaphylaxis, or both are induced, and ingested antigen must be absorbed to induce either response. (J Allergy Clin Immunol 2012;129:1343-8.)

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