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For a preferential homing of T cells to the gut, expression of the integrin α4β7 and the chemokine receptor CCR9 is essential and is induced by antigenic stimulation with dendritic cells from the gut-associated lymphoid organs. Here, we show that the vitamin A (retinol) metabolite, retinoic acid, enhances the expression of α4β7 and CCR9 on T cells upon activation and imprints them with the gut tropism...
Some endocrine disrupting chemicals (EDCs) have been evidenced to affect cytokine production and lymphocyte proliferation. However, it is unknown whether EDCs disturb Th1/Th2 development. We chose alkylphenols that have been widely used as plastic additives and surfactants, and some of them are recognized as xenoestrogens. We examined whether they exert direct effects on T cells to suppress or enhance...
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