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B-cell responses in allergen immunotherapy.

Pattraporn Satitsuksanoa1,2, Willem van de Veen1,2, Mübeccel Akdis1,2

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Area of Science:

  • Immunology
  • Allergology

Background:

  • Allergen immunotherapy (AIT) aims to establish long-term clinical tolerance to allergens.
  • This involves basophils, mast cells, regulatory T and B cells, and specific antibody production (IgG, IgG4).

Purpose of the Study:

  • To review the multifaceted role of B cells in AIT.
  • To elucidate their mechanisms of action and potential for optimizing AIT.

Main Methods:

  • Review of current scientific literature on B cells in AIT.
  • Analysis of B cell involvement in immune tolerance and allergic disease research.

Main Results:

  • B cells are central to allergy and allergen tolerance, producing IgE-blocking antibodies.
  • Emerging evidence highlights B cells' antibody-independent regulatory roles, including immunosuppression via anti-inflammatory cytokines.

Conclusions:

  • Successful AIT relies on B cells for immune tolerance induction, symptom reduction, and improved clinical outcomes.
  • B cells contribute through both antibody-dependent and antibody-independent mechanisms.