T follicular helper and memory B cells in IgE recall responses

IgE antibodies raised against innocuous environmental antigens cause allergic diseases like allergic rhinitis, food allergy, and allergic asthma. While some allergies are often outgrown, others (peanut, shellfish, tree nut) are lifelong in the majority of individuals. Lifelong allergies are the resu...

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Main Author: Joshua F.E. Koenig
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Allergology International
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1323893024001205
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author Joshua F.E. Koenig
author_facet Joshua F.E. Koenig
author_sort Joshua F.E. Koenig
collection DOAJ
description IgE antibodies raised against innocuous environmental antigens cause allergic diseases like allergic rhinitis, food allergy, and allergic asthma. While some allergies are often outgrown, others (peanut, shellfish, tree nut) are lifelong in the majority of individuals. Lifelong allergies are the result of persistent production of allergen-specific IgE. However, IgE antibodies and the plasma cells that secrete them tend to be short-lived. Persistent allergen-specific IgE titres are thought to be derived from the continued renewal of IgE plasma cells from memory B cells in response to allergen encounters. The initial generation of allergen-specific IgE is driven by B cell activation by IL-4 producing Tfh cells, but the cellular and molecular mechanisms of the long-term production of IgE are poorly characterized. This review investigates the mechanisms governing IgE production and Tfh activation in the primary and recall responses, towards the objective of identifying molecular targets for therapeutic intervention that durably inactivate the IgE recall response.
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spelling doaj-art-492af28f514d44a7a726f5935916e1e82025-01-04T04:56:08ZengElsevierAllergology International1323-89302025-01-01741412T follicular helper and memory B cells in IgE recall responsesJoshua F.E. Koenig0McMaster Immunology Research Centre, Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada; Schroeder Allergy and Immunology Research Institute, Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, CanadaIgE antibodies raised against innocuous environmental antigens cause allergic diseases like allergic rhinitis, food allergy, and allergic asthma. While some allergies are often outgrown, others (peanut, shellfish, tree nut) are lifelong in the majority of individuals. Lifelong allergies are the result of persistent production of allergen-specific IgE. However, IgE antibodies and the plasma cells that secrete them tend to be short-lived. Persistent allergen-specific IgE titres are thought to be derived from the continued renewal of IgE plasma cells from memory B cells in response to allergen encounters. The initial generation of allergen-specific IgE is driven by B cell activation by IL-4 producing Tfh cells, but the cellular and molecular mechanisms of the long-term production of IgE are poorly characterized. This review investigates the mechanisms governing IgE production and Tfh activation in the primary and recall responses, towards the objective of identifying molecular targets for therapeutic intervention that durably inactivate the IgE recall response.http://www.sciencedirect.com/science/article/pii/S1323893024001205B cellIgEInductionMemoryTfh
spellingShingle Joshua F.E. Koenig
T follicular helper and memory B cells in IgE recall responses
Allergology International
B cell
IgE
Induction
Memory
Tfh
title T follicular helper and memory B cells in IgE recall responses
title_full T follicular helper and memory B cells in IgE recall responses
title_fullStr T follicular helper and memory B cells in IgE recall responses
title_full_unstemmed T follicular helper and memory B cells in IgE recall responses
title_short T follicular helper and memory B cells in IgE recall responses
title_sort t follicular helper and memory b cells in ige recall responses
topic B cell
IgE
Induction
Memory
Tfh
url http://www.sciencedirect.com/science/article/pii/S1323893024001205
work_keys_str_mv AT joshuafekoenig tfollicularhelperandmemorybcellsinigerecallresponses