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Galectins (Gals) have emerged as potent immunoregulatory molecules that control chronic inflammation through distinct mechanisms. Gal-8, a tandem-repeat type Gal with unique preference for α2,3-sialylated glycans, is ubiquitously expressed, but little is known about its role in T-cell differentiation. Here we report that Gal-8 promotes the polyclonal differentiation of primary mouse regulatory T (Treg) cells in vitro. We further show that Gal-8 also facilitates antigen-specific differentiation of Treg cells, and that Treg cells polarized in the presence of Gal-8 express cytotoxic T-lymphocyte antigen-4 and interleukin (IL)-10 at a higher frequency than control Treg cells, and efficiently inhibit proliferation of activated T-cells in vitro. Investigation of the mechanism by which Gal-8 promotes Treg conversion revealed that Gal-8 activates transforming growth factor-β signaling and promotes sustained IL-2R signaling. Taken together, these data suggest that Gal-8 promotes the differentiation of highly suppressive Treg cells, which has implications for the treatment of inflammatory and autoimmune diseases.
Pubmed ID: 26282995
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Commercial antibody supplier and developer for biomedical research. These products are compatible with use in flow cytometry and mass cytometry, immunoprecipitation and chip, western blotting, immunofluorescence microscopy, and quantitative multiplexing.
View all literature mentionsAn independent, nonprofit organization focused on mammalian genetics research to advance human health. Their mission is to discover the genetic basis for preventing, treating, and curing human disease, and to enable research for the global biomedical community. Jackson Laboratory breeds and manages colonies of mice as resources for other research institutions and laboratories, along with providing software and techniques. Jackson Lab also conducts genetic research and provides educational material for various educational levels.
View all literature mentionsSoftware for single-cell flow cytometry analysis. Its functions include management, display, manipulation, analysis and publication of the data stream produced by flow and mass cytometers.
View all literature mentionsBiotechnology company in San Diego, California. Provides life scientists with innovative research reagents including immunity and cell culture products.
View all literature mentionsMus musculus with name B6.Cg-Tg(TcraTcrb)425Cbn/J from IMSR.
View all literature mentionsMus musculus with name C57BL/6J from IMSR.
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