Expression data of human tonsilar CD4 positive T cell subsets

Type 1 regulatory T (Tr1) cells are one of the regulatory T cell subsets that are characterized by the production of high amount of IL-10 and lack of FOXP3 expression. Lymphocyte-activation gene 3 (LAG3) is a CD4 homologue molecule and we have previously reported that LAG3 is expressed on IL-10 producing regulatory T cells. However, naturally occurring Tr1 cells in human secondary lymphoid tissue have not been detected. We identified CD4+CD25-LAG3+ T cells in human tonsil.

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Sumitomo S, Nakachi S, Okamura T, Tsuchida Y, Kato R, Shoda H, Furukawa A, Kitahara N, Kondo K, Yamasoba T, Yamamoto K, Fujio K