The EBI2-oxysterol axis promotes the development of intestinal lymphoid structures and colitis
The gene encoding for Epstein-Barr virus-induced G-protein-coupled receptor 2 (EBI2) is a risk gene for inflammatory bowel disease (IBD). Together with its oxysterol ligand 7α,25-dihydroxycholesterol, EBI2 mediates migration and differentiation of immune cells. However, the role of EBI2 in the colon...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
11 February 2019
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| In: |
Mucosal immunology
Year: 2019, Jahrgang: 12, Heft: 3, Pages: 733-745 |
| ISSN: | 1935-3456 |
| DOI: | 10.1038/s41385-019-0140-x |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1038/s41385-019-0140-x Verlag, Volltext: https://www.nature.com/articles/s41385-019-0140-x 
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| Verfasserangaben: | Annika Wyss, Tina Raselli, Nathan Perkins, Florian Ruiz, Gérard Schmelczer, Glynis Klinke, Anja Moncsek, René Roth, Marianne R. Spalinger, Larissa Hering, Kirstin Atrott, Silvia Lang, Isabelle Frey-Wagner, Joachim C. Mertens, Michael Scharl, Andreas W. Sailer, Oliver Pabst, Martin Hersberger, Caroline Pot, Gerhard Rogler and Benjamin Misselwitz |
MARC
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| 245 | 1 | 4 | |a The EBI2-oxysterol axis promotes the development of intestinal lymphoid structures and colitis |c Annika Wyss, Tina Raselli, Nathan Perkins, Florian Ruiz, Gérard Schmelczer, Glynis Klinke, Anja Moncsek, René Roth, Marianne R. Spalinger, Larissa Hering, Kirstin Atrott, Silvia Lang, Isabelle Frey-Wagner, Joachim C. Mertens, Michael Scharl, Andreas W. Sailer, Oliver Pabst, Martin Hersberger, Caroline Pot, Gerhard Rogler and Benjamin Misselwitz |
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| 520 | |a The gene encoding for Epstein-Barr virus-induced G-protein-coupled receptor 2 (EBI2) is a risk gene for inflammatory bowel disease (IBD). Together with its oxysterol ligand 7α,25-dihydroxycholesterol, EBI2 mediates migration and differentiation of immune cells. However, the role of EBI2 in the colonic immune system remains insufficiently studied. We found increased mRNA expression of EBI2 and oxysterol-synthesizing enzymes (CH25H, CYP7B1) in the inflamed colon of patients with ulcerative colitis and mice with acute or chronic dextran sulfate sodium (DSS) colitis. Accordingly, we detected elevated levels of 25-hydroxylated oxysterols, including 7α,25-dihydroxycholesterol in mice with acute colonic inflammation. Knockout of EBI2 or CH25H did not affect severity of DSS colitis; however, inflammation was decreased in male EBI2−/− mice in the IL-10 colitis model. The colonic immune system comprises mucosal lymphoid structures, which accumulate upon chronic inflammation in IL-10-deficient mice and in chronic DSS colitis. However, EBI2−/− mice formed significantly less colonic lymphoid structures at baseline and showed defects in inflammation-induced accumulation of lymphoid structures. In summary, we report induction of the EBI2-7α,25-dihydroxycholesterol axis in colitis and a role of EBI2 for the accumulation of lymphoid tissue during homeostasis and inflammation. These data implicate the EBI2-7α,25-dihydroxycholesterol axis in IBD pathogenesis. | ||
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