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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 cells: maestros of the small intestinal crypts
Hans C Clevers1, Charles L Bevins
1Hubrecht Institute-KNAW, University Medical Center Utrecht, Uppsalalaan, Utrecht 3584CT, The Netherlands. h.clevers@hubrecht.eu
Annual Review of Physiology
|February 13, 2013
Summary
Paneth cells in the small intestine secrete antimicrobial peptides and growth factors. Their dysfunction is linked to inflammatory bowel disease, highlighting their crucial role in gut health.
Area of Science:
- Gastroenterology
- Cell Biology
- Immunology
Background:
- Paneth cells are specialized epithelial cells found at the base of small intestinal crypts.
- They were identified over a century ago based on their distinct secretory granules.
- These cells are crucial for maintaining intestinal homeostasis.
Purpose of the Study:
- To summarize the diverse physiological roles of Paneth cells.
- To highlight their function in host-microbe interactions and innate immunity.
- To underscore their importance in regulating intestinal stem cells and their link to inflammatory bowel disease.
Main Methods:
- Histological identification of Paneth cells.
- Biochemical analysis of secreted antimicrobial peptides and proteins.
- Functional studies on Paneth cell-derived factors.
- Correlation of Paneth cell dysfunction with disease pathogenesis.
Main Results:
- Paneth cells synthesize and secrete abundant antimicrobial peptides and proteins.
- These molecules mediate host-microbe interactions, maintaining microbiota balance and protecting against pathogens.
- Paneth cells also secrete factors essential for epithelial stem and progenitor cell maintenance and rejuvenation.
- Paneth cell dysfunction is implicated in the development of chronic inflammatory bowel disease.
Conclusions:
- Paneth cells are vital players in small intestinal physiology, immunity, and regeneration.
- Their antimicrobial secretions and growth factors are key to gut health.
- Disruptions in Paneth cell function contribute significantly to inflammatory bowel disease pathogenesis.
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