Abstract
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 (TFH) cells direct the affinity and isotype of antibodies produced by B cells. Although TFH cell–derived interleukin-4 (IL-4) is necessary for IgE production, it is not sufficient. We report a rare population of IL-13–producing TFH cells present in mice and humans with IgE to allergens, but not when allergen-specific IgE was absent or only low-affinity. These “TFH13” cells have an unusual cytokine profile (IL-13hiIL-4hiIL-5hiIL-21lo) and coexpress the transcription factors BCL6 and GATA3. TFH13 cells are required for production of high- but not low-affinity IgE and subsequent allergen-induced anaphylaxis. Blocking TFH13 cells may represent an alternative therapeutic target to ameliorate anaphylaxis.
Original language | English (US) |
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Article number | eaaw6433 |
Journal | Science |
Volume | 365 |
Issue number | 6456 |
DOIs | |
State | Published - Aug 30 2019 |
Funding
We thank M. Firla for technical assistance; M. Wimsatt for the illustration; E. Gelfand (National Jewish Health, CO) for the Il13−/− bone marrow; C. Allen (UCSF) for IgE GC B cell staining protocol; R. D. Chow (Yale University) for discussions on analysis of scRNA-seq data; and the Single Cell Biology Laboratory led by P. Robson at the Jackson Laboratory for Genomic Medicine, for help with scRNA-seq experiments. Funding: This work was supported by Food Allergy Research and Education Ira and Diana Riklis Family Research Award in Food Allergy, R01 AI136942, and R01 AI108829 (to S.C.E.), and by R21 AI135221 and R21 AI133440 (to A.W.). U.G. is a recipient of Gershon-Trudeau Fellowship from Immunobiology at Yale University. B.Z. is a recipient of Ph.D. fellowship awarded by Agency for Science, Technology, and Research, Singapore. T.S. is a recipient of Robert E. Leet and Clara Guthrie Patterson Trust Mentored Research Award.
ASJC Scopus subject areas
- General