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Retinoic acid‐induced autoantigen‐specific type 1 regulatory T cells suppress autoimmunity
Author(s) -
Raverdeau Mathilde,
Christofi Maria,
Malara Anna,
Wilk Mieszko M,
Misiak Alicja,
Kuffova Lucia,
Yu Tian,
McGinley Aoife M,
Quinn Shauna M,
Massilamany Chandirasegaran,
Reddy Jay,
Forrester John V,
Mills Kingston HG
Publication year - 2019
Publication title -
embo reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.584
H-Index - 184
eISSN - 1469-3178
pISSN - 1469-221X
DOI - 10.15252/embr.201847121
Subject(s) - autoimmunity , retinoic acid , microbiology and biotechnology , immunology , biology , genetics , immune system , gene
Abstract Regulatory T (Treg) cells help to maintain tolerance and prevent the development of autoimmune diseases. Retinoic acid (RA) can promote peripheral conversion of naïve T cells into Foxp3 + Treg cells. Here, we show that RA can act as an adjuvant to induce antigen‐specific type 1 Treg (Tr1) cells, which is augmented by co‐administration of IL‐2. Immunization of mice with the model antigen KLH in the presence of RA and IL‐2 induces T cells that secrete IL‐10, but not IL‐17 or IFN‐γ, and express LAG‐3, CD49b and PD‐1 but not Foxp3, a phenotype typical of Tr1 cells. Furthermore, immunization of mice with the autoantigen MOG in the presence of RA and IL‐2 induces Tr1 cells, which suppress pathogenic Th1 and Th17 cells that mediate the development of experimental autoimmune encephalomyelitis (EAE), an autoimmune disease of the CNS. Furthermore, immunization with a surrogate autoantigen, RA and IL‐2 prevents development of spontaneous autoimmune uveitis. Our findings demonstrate that the induction of autoantigen‐specific Tr1 cells can prevent the development of autoimmunity.