Flow cytometric identification of T<sub>fh</sub>13 cells in mouse and human.

Chen, Jennifer S; Grassmann, Jessica D S; Gowthaman, Uthaman; Olyha, Sam J; Simoneau, Tregony; Berin, M Cecilia; Eisenbarth, Stephanie C; Williams, Adam · J Allergy Clin Immunol · 2021

basic_science · Level V

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Abstract

Anaphylaxis is a life-threatening allergic reaction caused by cross-linking of high-affinity IgE antibodies on the surface of mast cells and basophils. Understanding the cellular mechanisms that lead to high-affinity IgE production is required to develop better therapeutics for preventing this severe reaction. A recently discovered population of T follicular helper T<sub>fh</sub>13 cells regulates the production of high-affinity IgE in mouse models of allergy and can also be found in patients with allergies with IgE antibodies against food or aeroallergens. Here we describe optimized protocols for identifying T<sub>fh</sub>13 cells in both mice and humans.

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