Related Experiment Video
Updated: Jul 15, 2026

Induction of Murine Intestinal Inflammation by Adoptive Transfer of Effector CD4+CD45RBhigh T Cells into Immunodeficient Mice
Published on: April 21, 2015
Inflammatory bowel disease: cause and immunobiology
Daniel C Baumgart1, Simon R Carding
1Department of Medicine, Division of Gastroenterology and Hepatology, Charité Medical Centre, Virchow Hospital, Medical School of the Humboldt-University of Berlin, 13344 Berlin, Germany. daniel.baumgart@charite.de
Inflammatory bowel disorders like Crohn's disease and ulcerative colitis arise from environmental factors, microbes, genetics, and immune system dysfunction. Understanding these triggers is key to developing new therapies for mucosal inflammation.
Area of Science:
- Gastroenterology
- Immunology
- Microbiology
Background:
- Crohn's disease and ulcerative colitis are idiopathic inflammatory bowel disorders.
- These conditions involve complex interactions between environmental factors, genetics, and the immune system.
- The gut microbiota plays a crucial role in maintaining intestinal homeostasis.
Purpose of the Study:
- To elucidate the multifactorial causes of mucosal inflammation in inflammatory bowel disorders.
- To detail the mechanisms of immune dysregulation and its role in disease pathogenesis.
- To highlight the interaction between the host immune system and the gut microbiome.
Main Methods:
- Review of current literature on inflammatory bowel disorders.
- Analysis of environmental, microbial, genetic, and immunological factors.
- Focus on pattern-recognition receptors and immune cell modulation.
Main Results:
- Identified key environmental factors (geography, smoking, hygiene) and infectious microbes contributing to disease.
- Described the symbiotic relationship between commensal microbiota and host immune system.
- Detailed the role of pattern-recognition receptors (e.g., Toll-like receptors, NOD-like receptors) in initiating inflammation.
- Highlighted the function of dendritic cells in modulating immune responses and T cell subpopulations.
Conclusions:
- Mucosal inflammation in IBD is a result of dysregulated immune responses to various triggers.
- Pattern-recognition receptors and immune cell interactions are central to IBD pathogenesis.
- Further research into these mechanisms may lead to novel therapeutic strategies.
Related Concept Videos
Inflammatory Bowel Disease III: Crohn's Disease
Inflammatory Bowel Disease II: Ulcerative Colitis
Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory Bowel Disease I: Introduction
Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by transmural...
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...

