What question did this study set out to answer?

To identify the cellular reservoir and molecular characteristics responsible for maintaining long-term allergen-specific IgE memory in allergic conditions.

February 7, 2024Science Translational Medicine

Type 2–polarized memory B cells hold allergen-specific IgE memory

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Authors

JKJoshua F. E. KoenigMcMaster University NKNiels Peter Hell KnudsenALK-Abelló (Denmark)APAllyssa PhelpsMcMaster University

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Implication

Immunological analysis reveals type 2-polarized memory B cells maintain allergen-specific IgE in allergic patients, highlighting a key cellular reservoir for allergic memory.

Key Points

To identify the cellular reservoir and molecular characteristics responsible for maintaining long-term allergen-specific IgE memory in allergic conditions.
Characterized transcriptional and surface protein expression profiles of memory B cells in individuals with allergic rhinitis and food allergy.
Tracked allergen-specific IgE production from type 2-polarized memory B cells (MBC2s) during sublingual immunotherapy.
Allergen-specific B cells from patients with allergic rhinitis and food allergy were markedly enriched in MBC2s, which expressed IgG1 and IgG4 while constitutively expressing IgE germline transcripts.
MBC2s actively produced allergen-specific IgE during sublingual immunotherapy, identifying this specific cell subset as a principal reservoir for IgE memory.

Cite This Study

Koenig et al. (2024) studied this question.

synapsesocial.com/papers/69ff7dc4b124fe5819857736 https://doi.org/10.1126/scitranslmed.adi0944

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Implication

Immunological analysis reveals type 2-polarized memory B cells maintain allergen-specific IgE in allergic patients, highlighting a key cellular reservoir for allergic memory.

Type 2–polarized memory B cells hold allergen-specific IgE memory

Discussion

Member takes

Implication

Key Points

Cite This Study

Type 2–polarized memory B cells hold allergen-specific IgE memory

Discussion

Member takes

Implication

Key Points

Cite This Study

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