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Isolation of Mouse Salivary Gland Stem Cells
Published on: February 8, 2011
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Salivary Glands: Stem Cells, Self-duplication, or Both?
M H Aure1, S Arany1, C E Ovitt2
1Center for Oral Biology, Department of Biomedical Genetics, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
Journal of Dental Research
|August 20, 2015
Summary
Salivary gland renewal may rely on self-renewing differentiated cells, not just stem cells. This challenges the traditional view and suggests acinar cells play a key role in salivary gland regeneration and homeostasis.
Area of Science:
- Regenerative Medicine
- Tissue Homeostasis
- Cell Biology
Background:
- Salivary gland maintenance is traditionally attributed to stem cell differentiation.
- Emerging evidence suggests self-renewal of differentiated cells contributes to tissue homeostasis.
- This challenges the established understanding of salivary gland regeneration.
Purpose of the Study:
- To review evidence for stem cell-dependent and differentiated cell-dependent tissue renewal.
- To explore the implications of different renewal modes for salivary gland regeneration.
- To propose a revised model for salivary gland homeostasis.
Main Methods:
- Literature review of studies on tissue renewal and regeneration.
- Analysis of evidence for stem cell differentiation versus self-renewal of mature cells.
- Comparative analysis of salivary gland, liver, and pancreas homeostasis.
Main Results:
- The traditional view posits stem cells are essential for salivary gland renewal.
- New evidence indicates self-renewal of differentiated cells is crucial for homeostasis.
- Acinar cells exhibit proliferative activity, contributing to gland maintenance.
Conclusions:
- The role of stem cells in salivary gland renewal may be overestimated.
- Self-renewal of differentiated acinar cells is a significant factor in salivary gland homeostasis.
- A revised perspective is needed, acknowledging acinar cell proliferation in salivary gland regeneration.
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