Immune System Modulation via Allergen Exposure

Immune system modulation via allergen exposure describes the complex process by which the immune system responds to allergens, ranging from sensitization and allergic reactions to desensitization and tolerance. It involves a cascade of cellular and molecular events, including antigen presentation, T cell and B cell activation, cytokine and antibody production, and the recruitment of inflammatory cells. Allergen-specific immunotherapy aims to shift the immune response from a pathogenic Th2-dominated profile toward regulatory or tolerant states, reducing allergic symptoms and improving quality of life.

Other names

Allergen-induced immune modulationAllergy desensitizationAllergen-specific immunotherapyImmune tolerance induction to allergens

Complex; involves shifting the immune response from Th2 dominance to a more balanced or regulatory state via repeated allergen exposure. Induction of Treg cells, production of IgG4 blocking antibodies, suppression of IgE production, and downregulation of mast cell/basophil activity.