CD79A and food allergy: However, whereas a recent report demonstrated the inhibition of IgE‐mediated basophil and mast cell degranulation by IgA in a food allergy model,118 other studies could not demonstrate an inhibitory role of AIT‐induced allergen‐specific IgA on the binding of IgE to the allergens,119 or of binding of IgE‐allergen immune complexes to B cells.120