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IL-10-producing CD4(+) T Cells Negatively Regulate Fucosylation of Epithelial Cells in the Gut

Overview
Journal Sci Rep
Specialty Science
Date 2015 Nov 3
PMID 26522513
Citations 15
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Abstract

Fucosylated glycans on the surface of epithelial cells (ECs) regulate intestinal homeostasis by serving as attachment receptors and a nutrient source for some species of bacteria. We show here that epithelial fucosylation in the ileum is negatively regulated by IL-10-producing CD4(+) T cells. The number of fucosylated ECs was increased in the ileum of mice lacking T cells, especially those expressing αβ T cell receptor (TCR), CD4, and IL-10. No such effect was observed in mice lacking B cells. Adoptive transfer of αβTCR(+) CD4(+) T cells from normal mice, but not IL-10-deficient mice, normalized fucosylation of ECs. These findings suggest that IL-10-producing CD4(+) T cells contribute to the maintenance of the function of ECs by regulating their fucosylation.

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