期刊
SCIENCE
卷 365, 期 6456, 页码 883-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaw6433
关键词
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资金
- Food Allergy Research and Education Ira and Diana Riklis Family Research Award in Food Allergy [R01 AI136942, R01 AI108829]
- Gershon-Trudeau Fellowship from Immunobiology at Yale University
- Agency for Science, Technology, and Research, Singapore
- Robert E. Leet and Clara Guthrie Patterson Trust Mentored Research Award
- [R21 AI135221]
- [R21 AI133440]
Cross-linking of high-affinity immunoglobulin E (IgE) results in the life-threatening allergic reaction anaphylaxis. Yet the cellular mechanisms that induce B cells to produce IgE in response to allergens remain poorly understood. T follicular helper (T-FH) cells direct the affinity and isotype of antibodies produced by B cells. Although T-FH cell-derived interleukin-4 (IL-4) is necessary for IgE production, it is not sufficient. We report a rare population of IL-13-producing T-FH cells present in mice and humans with IgE to allergens, but not when allergen-specific IgE was absent or only low-affinity. These T(FH)13 cells have an unusual cytokine profile (IL-13(hi)IL-4(hi)IL-5(hi)IL-21(lo)) and coexpress the transcription factors BCL6 and GATA3. T(FH)13 cells are required for production of high-but not low-affinity IgE and subsequent allergen-induced anaphylaxis. Blocking T(FH)13 cells may represent an alternative therapeutic target to ameliorate anaphylaxis.
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