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Vitamin A controls the allergic response through T follicular helper cell as well as plasmablast differentiation

机译:维生素A通过T滤泡辅助细胞以及Plasmablast分化控制过敏反应

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摘要

Background Vitamin A regulates the adaptive immune response and a modulatory impact on type I allergy is discussed. The cellular mechanisms are largely unknown. Objective To determine the vitamin A-responding specific lymphocyte reaction in vivo. Methods Antigen-specific B and T lymphocytes were analyzed in an adoptive transfer airway inflammation mouse model in response to 9-cis retinoic acid (9cRA) and after lymphocyte-specific genetic targeting of the receptor RAR alpha. Flow cytometry, quantitative PCR, next-generation sequencing, and specific Ig-ELISA were used to characterize the cells functionally. Results Systemic 9cRA profoundly enhanced the specific IgA-secreting B-cell frequencies in the lung tissue and serum IgA while reducing serum IgE concentrations. RAR alpha overexpression in antigen-specific B cells promoted differentiation into plasmablasts at the expense of germinal center B cells. In antigen-specific T cells, RAR alpha strongly promoted the differentiation of T follicular helper cells followed by an enhanced germinal center response. Conclusions 9cRA signaling via RAR alpha impacts the allergen-specific immunoglobulin response directly by the differentiation of B cells and indirectly by promoting T follicular helper cells.
机译:None

著录项

  • 来源
    《Allergy》 |2021年第4期|共14页
  • 作者单位

    Humboldt Univ Charite Univ Berlin Berlin Inst Hlth Div Allergy &

    Immunol Dept Dermatol Venereol;

    Leibniz Inst Deutsch Rheuma Forschungszentrum A Berlin Germany;

    Leibniz Inst Deutsch Rheuma Forschungszentrum A Berlin Germany;

    Leibniz Inst Deutsch Rheuma Forschungszentrum A Berlin Germany;

    Leibniz Inst Deutsch Rheuma Forschungszentrum A Berlin Germany;

    Humboldt Univ Charite Univ Berlin Berlin Inst Hlth Div Allergy &

    Immunol Dept Dermatol Venereol;

    Humboldt Univ Charite Univ Berlin Berlin Inst Hlth Div Allergy &

    Immunol Dept Dermatol Venereol;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 医学免疫学;
  • 关键词

    9-cis retinoic acid; allergy; RAR; Tfh cells; vitamin A;

    机译:9-CIS维甲酸;过敏;RAR;TFH细胞;维生素A;

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