Allergen-specific antibody

Allergen-specific antibodies are immunoglobulins targeting distinct allergenic proteins. IgE is central in mediating allergic reactions through binding to high-affinity Fc receptors on mast cells and basophils, leading to cell activation and histamine release upon allergen exposure[1][3][7]. Allergen-specific IgG, particularly IgG4, may develop after allergen immunotherapy and can block IgE-allergen interaction, ameliorating symptoms and promoting immune tolerance[3][6][8]. Allergen-specific antibodies are used as diagnostic biomarkers, guides for immunotherapy, and as direct therapeutic targets, with anti-IgE monoclonal antibodies showing efficacy in conditions like asthma, urticaria, and food allergy[4][8].

Other names

Allergen-specific IgEAllergen-specific IgGAllergen-specific IgAAllergen-specific immunoglobulinsBlocking antibodies (refers to IgG that competes with IgE for allergen binding)

Blocking IgE binding to receptors on mast cells and basophils (anti-IgE) Blocking allergen binding to IgE (blocking IgG) Disrupting IgE-facilitated antigen presentation (blocking antibody)