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Related Experiment Video

Updated: May 24, 2026

A TNBS-Induced Rodent Model to Study the Pathogenic Role of Mechanical Stress in Crohn's Disease

A TNBS-Induced Rodent Model to Study the Pathogenic Role of Mechanical Stress in Crohn's Disease

Published on: March 1, 2022

Taking inflammatory bowel disease up a Notch.

Lauren E Laitman¹, Stephanie Dahan

¹Immunology Institute, Mount Sinai School of Medicine, 1425 Madison Avenue, Box 1089, New York, NY 10029, USA.

Immunologic Research

|March 20, 2012

Summary

The intestinal epithelium maintains body equilibrium by regulating nutrient transport and preventing microbial invasion. Understanding the interactions between intestinal epithelial cells and immune cells is key to addressing inflammatory bowel disease.

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Published on: December 16, 2021

Area of Science:

Gastroenterology
Immunology
Cell Biology

Background:

The gastrointestinal tract epithelium is the body's largest surface area, constantly interacting with its environment.
Intestinal epithelial cells (IECs) form crucial barriers for nutrient/water transport and microbial defense.
IECs distinguish between beneficial and harmful antigens, influencing immune cell activity.

Purpose of the Study:

To explore the molecular dialogue between the intestinal epithelium and immune cells.
To elucidate the mechanisms underlying intestinal homeostasis.
To identify potential defects in epithelial-immune cell interactions in inflammatory bowel disease.

Main Methods:

Analysis of the gastrointestinal tract epithelium.
Investigation of intestinal epithelial cell (IEC) functions.
Study of immune cell interactions within the lamina propria (LP).

Main Results:

The intestinal epithelium plays a vital role in maintaining homeostasis.
IECs possess the ability to differentiate between 'peaceful' and 'harmful' antigens.
Molecular adjustments by the epithelium influence innate and adaptive immune cells.

Conclusions:

Crosstalk between the epithelium and immune cells is essential for intestinal homeostasis.
Further understanding of normal LP lymphocyte (LPL) and IEC interactions is needed.
Insights into these interactions may reveal defects in inflammatory bowel disease.