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Updated: Jun 16, 2026
Primary Culture of Dental Pulp Stem Cells
Published on: May 5, 2023
Characterization of primary dental pulp cells in vitro
Carolyn Coppe1, Yan Zhang, Pamela K Den Besten
1Department of Oral Facial Sciences, Division of Pediatric Dentistry. University of California San Francisco, San Francisco, Calif, USA.
Human primary dental pulp cells, containing under 2% stem cells, can induce oral epithelial cells to differentiate into an ameloblast-like phenotype, showing potential for enamel tissue engineering.
Area of Science:
- Dental cell biology
- Tissue engineering
- Stem cell research
Background:
- Primary dental pulp cells are a heterogeneous population.
- Understanding their differentiation potential is crucial for regenerative dentistry.
Purpose of the Study:
- To characterize human primary dental pulp cells.
- To assess their capacity to induce oral epithelial cell differentiation.
Main Methods:
- Isolation and culture of primary dental pulp cells.
- Identification of stem cell populations using STRO-1 and CD146 markers.
- Co-culture with oral epithelial cells and analysis of amelogenin expression via PCR and immunocytochemistry.
Main Results:
- Stem cells constituted approximately 2% of the primary dental pulp cell population.
- Co-cultured pulp cells induced amelogenin expression in oral epithelial cells.
- Amelogenin expression was absent in oral epithelial cells cultured alone.
Conclusions:
- Primary dental pulp contains a small stem cell fraction.
- These cells can promote epithelial differentiation towards an ameloblast phenotype.
- Potential application in cell-mediated enamel tissue engineering.
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