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Updated: Jun 21, 2026
12:55
A Microphysiological System to Study Leukocyte-Endothelial Cell Interaction during Inflammation
Published on: December 9, 2021
The tight junction in inflammatory disease: communication breakdown.
Karen L Edelblum1, Jerrold R Turner
1Department of Pathology, The University of Chicago, Chicago, IL 60637, USA.
Current Opinion in Pharmacology
|July 28, 2009
Summary
Intestinal barrier dysfunction in inflammatory bowel disease (IBD) may worsen disease progression. Restoring gut barrier function could be a novel therapeutic strategy alongside immune-based treatments.
Area of Science:
- Gastroenterology and Immunology
Background:
- The intestinal epithelium maintains gut homeostasis by regulating paracellular transport via tight junctions.
- Inflammatory bowel disease (IBD) is characterized by impaired tight junction barrier function, elevated pro-inflammatory cytokines, and immune dysregulation.
- The precise interplay between epithelial barrier defects and immune activation in IBD pathogenesis remains unclear.
Purpose of the Study:
- To explore the relationship between intestinal barrier dysfunction and immune responses in IBD.
- To evaluate the potential of barrier restoration as a therapeutic approach for IBD.
Main Methods:
- The study reviews existing literature and proposes a model integrating epithelial barrier function and mucosal immunity in IBD.
- Experimental models of IBD and analysis of patient data were considered.
Main Results:
- While epithelial barrier defects alone do not cause IBD, they can exacerbate immune activation.
- Increased intestinal permeability influences mucosal immune responses.
Conclusions:
- Epithelial barrier dysfunction may predispose individuals to or enhance IBD progression.
- Therapies aimed at restoring intestinal barrier integrity represent a promising complementary or alternative strategy to current immunology-based treatments for IBD.
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