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Epithelial stem cells in gastrointestinal morphogenesis, adaptation and carcinogenesis
1Histopathology Unit, Imperial Cancer Research Fund, Lincoln's Inn Fields, London, UK.
Seminars in Cell Biology
|December 1, 1992
Summary
Epithelial stem cells maintain tissues and may drive metaplasia and cancer. This review compares gastrointestinal stem cell functions and discusses new organotypic culture methods for their study.
Area of Science:
- Gastroenterology
- Stem Cell Biology
- Epithelial Biology
Background:
- Epithelial stem cells are crucial for tissue homeostasis.
- These cells are increasingly recognized for their role in metaplasia and neoplasia.
- Understanding stem cell function is key to addressing diseases of the gastrointestinal tract.
Purpose of the Study:
- To compare and contrast stem cell functions across different gastrointestinal regions.
- To identify unifying concepts in gastrointestinal stem cell biology.
- To discuss the application of novel organotypic cell culture methods in studying these stem cells.
Main Methods:
- Comparative review of existing literature on gastrointestinal stem cells.
- Analysis of stem cell roles in physiological maintenance, metaplasia, and neoplasia.
- Discussion of emerging organotypic cell culture techniques.
Main Results:
- Stem cells exhibit both distinct regional functions and shared fundamental properties throughout the gastrointestinal tract.
- Evidence suggests a continuum from normal stem cell function to metaplasia and neoplastic transformation.
- Organotypic cell culture offers a promising avenue for in vitro investigation of gastrointestinal stem cells.
Conclusions:
- Gastrointestinal stem cells play a pivotal role in tissue maintenance and disease initiation.
- A unified understanding of stem cell biology is emerging across different tract regions.
- Advanced culture methods will facilitate future research into gastrointestinal stem cell behavior and therapeutic targeting.