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Updated: Jun 1, 2026

Protocols for Analyzing the Role of Paneth Cells in Regenerating the Murine Intestine using Conditional Cre-lox Mouse Models

Protocols for Analyzing the Role of Paneth Cells in Regenerating the Murine Intestine using Conditional Cre-lox Mouse Models

Published on: November 21, 2015

Paneth cell function--implications in pediatric Crohn disease.

Julia Beisner¹, Eduard F Stange, Jan Wehkamp

¹Dr. Margarete Fischer-Bosch, Institute of Clinical Pharmacology and University of Tübingen, Tübingen, Germany.

|June 4, 2011

Summary

This summary is machine-generated.

Children with ileal Crohn's disease have reduced intestinal barrier function due to lower HD-5 expression. This is linked to Wnt signaling disruption affecting Paneth cell innate immunity.

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Last Updated: Jun 1, 2026

Protocols for Analyzing the Role of Paneth Cells in Regenerating the Murine Intestine using Conditional Cre-lox Mouse Models

Protocols for Analyzing the Role of Paneth Cells in Regenerating the Murine Intestine using Conditional Cre-lox Mouse Models

Published on: November 21, 2015

Area of Science:

Gastroenterology
Immunology
Cell Biology

Background:

Intestinal barrier defects are central to disease pathogenesis.
Reduced small intestinal HD-5 expression in pediatric ileal Crohn's disease suggests compromised mucosal barrier function.
This compromise may be a key factor in early disease development.

Purpose of the Study:

To summarize recent findings on Paneth cell function in pediatric ileal Crohn's disease.
To discuss the role of HD-5 and Wnt signaling in disease pathogenesis.
To explore the implications for innate immune function.

Main Methods:

Analysis of HD-5 expression in children with ileal Crohn's disease.
Investigation of Wnt signaling pathway components, specifically TCF-4.
Assessment of Paneth cell differentiation and defensin secretion.

Main Results:

Children with ileal Crohn's disease exhibit reduced expression of small intestinal HD-5.
Disturbance in the Wnt signaling transcription factor TCF-4 was identified as a mechanism for HD-5 deficiency.
This deficiency may impair innate immune function via compromised defensin secretion by Paneth cells.

Conclusions:

Compromised mucosal barrier function, indicated by reduced HD-5, is implicated in early pediatric ileal Crohn's disease pathogenesis.
Wnt signaling pathway disruption, affecting TCF-4, contributes to HD-5 deficiency.
Paneth cell differentiation and function are critical factors in the pathogenesis of this condition.