Allergen Immunotherapy: Current and Future Trends.

Area of Science:

• Immunology and Allergy
• Pharmacology
• Biotechnology

Background:

• Allergen immunotherapy (AIT) is the only disease-modifying treatment for allergic rhinitis, preventing asthma progression and reducing medication needs.
• Current AIT methods are effective for mites, insect venom, and pollen allergies but require long administration periods and can cause adverse reactions.
• AIT functions by inducing immunological tolerance, marked by elevated IL-10, TGF-β, IgG4, and Treg cells.

Purpose of the Study:

• To review advancements in AIT, focusing on novel approaches for improved allergic illness treatment.
• To explore how modified allergens and adjuvants enhance clinical-immunological effects and reduce side effects.
• To assess the potential of molecular AIT in treating specific allergies like grass and birch.

Main Methods:

• Review of recent developments in allergen identification and structural/chemical modification of allergens.
• Inclusion of adjuvants to enhance immune response and tolerance induction.
• Analysis of clinical studies on molecular AIT efficacy and safety.

Main Results:

• Novel AIT forms utilize modified allergens to preserve B and T cell epitopes, leading to similar tolerance induction with fewer adverse events.
• Molecular AIT has demonstrated efficiency in treating grass and birch allergies.
• Enhanced AIT strategies show potential for cross-tolerance to related allergens.

Conclusions:

• New AIT strategies offer improved safety and efficacy profiles compared to traditional methods.
• Molecular AIT represents a promising advancement in managing allergic diseases.
• Further research into novel AIT is crucial for optimizing allergic illness treatment.