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Choline Deficiency Causes Colonic Type II Natural Killer T (NKT) Cell Loss and Alleviates Murine Colitis under Type I NKT Cell Deficiency
Serum levels of choline and its derivatives are lower in patients with inflammatory bowel disease (IBD) than in healthy individuals. However, the effect of choline deficiency on the severity of colitis has not been investigated. In the present study, we investigated the role of choline deficiency in...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5241147/ https://www.ncbi.nlm.nih.gov/pubmed/28095507 http://dx.doi.org/10.1371/journal.pone.0169681 |
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author | Sagami, Shintaro Ueno, Yoshitaka Tanaka, Shinji Fujita, Akira Niitsu, Hiroaki Hayashi, Ryohei Hyogo, Hideyuki Hinoi, Takao Kitadai, Yasuhiko Chayama, Kazuaki |
author_facet | Sagami, Shintaro Ueno, Yoshitaka Tanaka, Shinji Fujita, Akira Niitsu, Hiroaki Hayashi, Ryohei Hyogo, Hideyuki Hinoi, Takao Kitadai, Yasuhiko Chayama, Kazuaki |
author_sort | Sagami, Shintaro |
collection | PubMed |
description | Serum levels of choline and its derivatives are lower in patients with inflammatory bowel disease (IBD) than in healthy individuals. However, the effect of choline deficiency on the severity of colitis has not been investigated. In the present study, we investigated the role of choline deficiency in dextran sulfate sodium (DSS)-induced colitis in mice. Methionine-choline-deficient (MCD) diet lowered the levels of type II natural killer T (NKT) cells in the colonic lamina propria, peritoneal cavity, and mesenteric lymph nodes, and increased the levels of type II NKT cells in the livers of wild-type B6 mice compared with that in mice fed a control (CTR) diet. The gene expression pattern of the chemokine receptor CXCR6, which promotes NKT cell accumulation, varied between colon and liver in a manner dependent on the changes in the type II NKT cell levels. To examine the role of type II NKT cells in colitis under choline-deficient conditions, we assessed the severity of DSS-induced colitis in type I NKT cell-deficient (Jα18(-/-)) or type I and type II NKT cell-deficient (CD1d(-/-)) mice fed the MCD or CTR diets. The MCD diet led to amelioration of inflammation, decreases in interferon (IFN)-γ and interleukin (IL)-4 secretion, and a decrease in the number of IFN-γ and IL-4-producing NKT cells in Jα18(-/-) mice but not in CD1d(-/-) mice. Finally, adaptive transfer of lymphocytes with type II NKT cells exacerbated DSS-induced colitis in Jα18(-/-) mice with MCD diet. These results suggest that choline deficiency causes proinflammatory type II NKT cell loss and alleviates DSS-induced colitis. Thus, inflammation in DSS-induced colitis under choline deficiency is caused by type II NKT cell-dependent mechanisms, including decreased type II NKT cell and proinflammatory cytokine levels. |
format | Online Article Text |
id | pubmed-5241147 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-52411472017-02-06 Choline Deficiency Causes Colonic Type II Natural Killer T (NKT) Cell Loss and Alleviates Murine Colitis under Type I NKT Cell Deficiency Sagami, Shintaro Ueno, Yoshitaka Tanaka, Shinji Fujita, Akira Niitsu, Hiroaki Hayashi, Ryohei Hyogo, Hideyuki Hinoi, Takao Kitadai, Yasuhiko Chayama, Kazuaki PLoS One Research Article Serum levels of choline and its derivatives are lower in patients with inflammatory bowel disease (IBD) than in healthy individuals. However, the effect of choline deficiency on the severity of colitis has not been investigated. In the present study, we investigated the role of choline deficiency in dextran sulfate sodium (DSS)-induced colitis in mice. Methionine-choline-deficient (MCD) diet lowered the levels of type II natural killer T (NKT) cells in the colonic lamina propria, peritoneal cavity, and mesenteric lymph nodes, and increased the levels of type II NKT cells in the livers of wild-type B6 mice compared with that in mice fed a control (CTR) diet. The gene expression pattern of the chemokine receptor CXCR6, which promotes NKT cell accumulation, varied between colon and liver in a manner dependent on the changes in the type II NKT cell levels. To examine the role of type II NKT cells in colitis under choline-deficient conditions, we assessed the severity of DSS-induced colitis in type I NKT cell-deficient (Jα18(-/-)) or type I and type II NKT cell-deficient (CD1d(-/-)) mice fed the MCD or CTR diets. The MCD diet led to amelioration of inflammation, decreases in interferon (IFN)-γ and interleukin (IL)-4 secretion, and a decrease in the number of IFN-γ and IL-4-producing NKT cells in Jα18(-/-) mice but not in CD1d(-/-) mice. Finally, adaptive transfer of lymphocytes with type II NKT cells exacerbated DSS-induced colitis in Jα18(-/-) mice with MCD diet. These results suggest that choline deficiency causes proinflammatory type II NKT cell loss and alleviates DSS-induced colitis. Thus, inflammation in DSS-induced colitis under choline deficiency is caused by type II NKT cell-dependent mechanisms, including decreased type II NKT cell and proinflammatory cytokine levels. Public Library of Science 2017-01-17 /pmc/articles/PMC5241147/ /pubmed/28095507 http://dx.doi.org/10.1371/journal.pone.0169681 Text en © 2017 Sagami et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Sagami, Shintaro Ueno, Yoshitaka Tanaka, Shinji Fujita, Akira Niitsu, Hiroaki Hayashi, Ryohei Hyogo, Hideyuki Hinoi, Takao Kitadai, Yasuhiko Chayama, Kazuaki Choline Deficiency Causes Colonic Type II Natural Killer T (NKT) Cell Loss and Alleviates Murine Colitis under Type I NKT Cell Deficiency |
title | Choline Deficiency Causes Colonic Type II Natural Killer T (NKT) Cell Loss and Alleviates Murine Colitis under Type I NKT Cell Deficiency |
title_full | Choline Deficiency Causes Colonic Type II Natural Killer T (NKT) Cell Loss and Alleviates Murine Colitis under Type I NKT Cell Deficiency |
title_fullStr | Choline Deficiency Causes Colonic Type II Natural Killer T (NKT) Cell Loss and Alleviates Murine Colitis under Type I NKT Cell Deficiency |
title_full_unstemmed | Choline Deficiency Causes Colonic Type II Natural Killer T (NKT) Cell Loss and Alleviates Murine Colitis under Type I NKT Cell Deficiency |
title_short | Choline Deficiency Causes Colonic Type II Natural Killer T (NKT) Cell Loss and Alleviates Murine Colitis under Type I NKT Cell Deficiency |
title_sort | choline deficiency causes colonic type ii natural killer t (nkt) cell loss and alleviates murine colitis under type i nkt cell deficiency |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5241147/ https://www.ncbi.nlm.nih.gov/pubmed/28095507 http://dx.doi.org/10.1371/journal.pone.0169681 |
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