title: IgE receptor signaling in food allergy pathogenesis.
abstract: The pathogenesis of food allergy remains poorly understood. Recent advances in the use of murine models have led to discoveries that mast cells and IgE receptor signaling not only drive immediate hypersensitivity reactions but also exert an immunoregulatory function, promoting the development of allergic sensitivity to foods. We review the evidence that IgE, IgE receptors, key signaling kinases and mast cells impair oral tolerance to ingested foods, preventing the induction of regulatory T cells (Treg) and promoting the acquisition of pro-allergic T helper (Th) 2 responses. We discuss innovative strategies that that could be implemented to counteract these immunoregulatory effects of IgE-mediated mast cell activation, and potentially reverse established sensitization, curing food allergy.
authors: Division of Immunology, Boston Children's Hospital, Boston, MA 02115, United States; Harvard Medical School, Boston, MA 02115, United States.
authors: Hans C
authors: HC
authors: Oettgen
authors: Division of Immunology, Boston Children's Hospital, Boston, MA 02115, United States; Harvard Medical School, Boston, MA 02115, United States. Electronic address: Oliver.burton@childrens.harvard.edu.
authors: Oliver T
authors: OT
authors: Burton
mesh_terms: D000485:Allergens / Q000276:immunology; D000818:Animals; D017951:Antigen Presentation / Q000276:immunology; D000941:Antigens / Q000276:immunology; D005512:Food Hypersensitivity / Q000188:drug therapy / Q000276:immunology* / Q000378:metabolism*; D006801:Humans; D007114:Immunization; D007073:Immunoglobulin E / Q000276:immunology* / Q000378:metabolism*; D058990:Molecular Targeted Therapy; D011485:Protein Binding; D017455:Receptors, IgE / Q000378:metabolism*; D015398:Signal Transduction / Q000187:drug effects
chemical_list: D000485:Allergens; D000941:Antigens; D017455:Receptors, IgE; D007073:Immunoglobulin E