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Cell. 2015 Jan 29;160(3):447-60. doi: 10.1016/j.cell.2015.01.002. Epub 2015 Jan 22.

Disease-specific alterations in the enteric virome in inflammatory bowel disease.

Author information

1
Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA.
2
Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA.
3
Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110, USA.
4
Division of Colorectal Surgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
5
The F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
6
Department of Medicine, Division of Digestive Diseases and Nutrition, Rush University Medical Center, Chicago, IL 60612, USA.
7
Gastrointestinal Unit and Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
8
Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
9
Gastrointestinal Unit and Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
10
Division of Gastroenterology Addenbrooke's Hospital and Department of Medicine, University of Cambridge, Cambridge CB2 0QQ, UK.
11
Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA. Electronic address: virgin@wustl.edu.

Abstract

Decreases in the diversity of enteric bacterial populations are observed in patients with Crohn's disease (CD) and ulcerative colitis (UC). Less is known about the virome in these diseases. We show that the enteric virome is abnormal in CD and UC patients. In-depth analysis of preparations enriched for free virions in the intestine revealed that CD and UC were associated with a significant expansion of Caudovirales bacteriophages. The viromes of CD and UC patients were disease and cohort specific. Importantly, it did not appear that expansion and diversification of the enteric virome was secondary to changes in bacterial populations. These data support a model in which changes in the virome may contribute to intestinal inflammation and bacterial dysbiosis. We conclude that the virome is a candidate for contributing to, or being a biomarker for, human inflammatory bowel disease and speculate that the enteric virome may play a role in other diseases.

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PMID:
25619688
PMCID:
PMC4312520
DOI:
10.1016/j.cell.2015.01.002
[Indexed for MEDLINE]
Free PMC Article

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