Journal
CURRENT ALLERGY AND ASTHMA REPORTS
Volume 15, Issue 10, Pages -Publisher
CURRENT MEDICINE GROUP
DOI: 10.1007/s11882-015-0562-9
Keywords
Crohn's; Colitis; Microbiota; Intestine; Inflammation; Immune
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Inflammatory bowel diseases (IBDs), including Crohn's disease and ulcerative colitis, are characterized by chronic, T-cell-mediated inflammation of the gastrointestinal tract that can cause significant, lifelong morbidity. Data from both human and animal studies indicate that IBDs are likely caused by dysregulated immune responses to resident intestinal microbes. Certain products from mycobacteria, fungi, and Clostridia stimulate increased effector T cell responses during intestinal inflammation, whereas other bacterial products from Clostridia and Bacteroides promote anti-inflammatory regulatory T cell responses. Antibody responses to bacterial and fungal components may help predict the severity of IBDs. While most currently approved treatments for IBDs generally suppress the patient's immune system, our growing understanding of microbial influences in IBDs will likely lead to the development of new diagnostic tools and therapies that target the intestinal microbiota.
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