Innate lymphoid cells regulate intestinal epithelial cell glycosylation

Science. 2014 Sep 12;345(6202):1254009. doi: 10.1126/science.1254009. Epub 2014 Aug 21.

Abstract

Fucosylation of intestinal epithelial cells, catalyzed by fucosyltransferase 2 (Fut2), is a major glycosylation mechanism of host-microbiota symbiosis. Commensal bacteria induce epithelial fucosylation, and epithelial fucose is used as a dietary carbohydrate by many of these bacteria. However, the molecular and cellular mechanisms that regulate the induction of epithelial fucosylation are unknown. Here, we show that type 3 innate lymphoid cells (ILC3) induced intestinal epithelial Fut2 expression and fucosylation in mice. This induction required the cytokines interleukin-22 and lymphotoxin in a commensal bacteria-dependent and -independent manner, respectively. Disruption of intestinal fucosylation led to increased susceptibility to infection by Salmonella typhimurium. Our data reveal a role for ILC3 in shaping the gut microenvironment through the regulation of epithelial glycosylation.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Base Sequence
  • Disease Models, Animal
  • Fucose / metabolism*
  • Fucosyltransferases / genetics
  • Fucosyltransferases / metabolism
  • Galactoside 2-alpha-L-fucosyltransferase
  • Germ-Free Life
  • Glycosylation
  • Goblet Cells / enzymology
  • Goblet Cells / immunology
  • Goblet Cells / microbiology
  • Ileum / enzymology
  • Ileum / immunology
  • Ileum / microbiology
  • Immunity, Innate*
  • Interleukin-22
  • Interleukins / immunology
  • Intestinal Mucosa / enzymology
  • Intestinal Mucosa / immunology*
  • Intestinal Mucosa / microbiology
  • Lymphocytes / immunology*
  • Mice
  • Mice, Inbred BALB C
  • Mice, Inbred C57BL
  • Mice, Mutant Strains
  • Microbiota / immunology*
  • Molecular Sequence Data
  • Paneth Cells / enzymology
  • Paneth Cells / immunology
  • Paneth Cells / microbiology
  • Salmonella Infections / immunology*
  • Salmonella Infections / microbiology
  • Salmonella typhimurium*

Substances

  • Interleukins
  • Fucose
  • Fucosyltransferases

Associated data

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