Related Experiment Videos
Adult stem cell plasticity: will engineered tissues be rejected?
Te-Chao Fang1, Malcolm R Alison, Nicholas A Wright
1Histopathology Unit, Cancer Research UK London Research Institute, London, UK.
International Journal of Experimental Pathology
|July 17, 2004
Summary
Adult stem cells may possess plasticity, challenging the dogma of tissue-specific commitment. This plasticity could enable novel cell therapies for regenerating organs and treating genetic diseases.
Area of Science:
- Stem Cell Biology
- Regenerative Medicine
- Cellular Therapy
Background:
- The traditional view holds that adult tissue-specific stem cells are restricted to their native tissue.
- Emerging evidence suggests stem cell plasticity, where cells may change their phenotype and function.
- This concept is crucial for developing advanced cell-based therapies.
Purpose of the Study:
- To review the evidence supporting adult stem cell plasticity.
- To explore the potential of exploiting stem cell plasticity for therapeutic applications.
- To discuss challenges and considerations for cell-based therapies.
Main Methods:
- Histological analysis of tissues from patients and animal models with cell or organ grafts.
- Detection of donor markers in recipient tissues to identify differentiated cells.
- Review of existing literature on stem cell plasticity and cell fusion in regeneration.
Main Results:
- Evidence suggests stem cells can change phenotype, contributing to tissue regeneration.
- Engraftment levels are generally low but can increase with tissue damage or selection pressure.
- Cell fusion is implicated in the regeneration and remodeling of various tissues, including liver, muscle, and brain.
Conclusions:
- Adult stem cell plasticity is a viable concept with significant therapeutic potential.
- Challenges such as immune rejection and graft-versus-host disease need to be addressed for successful cell therapy.
- Further research into the mechanisms of plasticity and engraftment is warranted.