Human embryonic stem cell differentiation into odontoblastic lineage: an in vitro study
F K Kidwai1, M M Movahednia, K Iqbal
1Discipline of Oral Sciences, Faculty of Dentistry, National University of Singapore, Singapore, Singapore.
International Endodontic Journal
|September 17, 2013
Summary
Human embryonic stem cells (hESCs) can be differentiated into odontoblast-like cells using FGF-8 and BMP-4. These cells show potential as a consistent cell source for dental research and clinical applications.
Area of Science:
- Stem cell biology
- Dental research
- Regenerative medicine
Background:
- Human embryonic stem cells (hESCs) offer a promising source for regenerative therapies.
- Odontoblastic lineage differentiation is crucial for dentin regeneration.
- Optimized culture conditions are needed for efficient stem cell differentiation.
Purpose of the Study:
- To differentiate hESCs into odontoblast-like cells.
- To establish an optimized culture milieu for odontogenesis.
- To evaluate the potential of hESCs for dental applications.
Main Methods:
- hESCs were differentiated into mesenchymal stem cells (H9-MSCs).
- H9-MSCs were induced into odontoblast-like cells (H9-Odont) or osteogenic cells (H9-Osteo) using FGF-8 and BMP-4.
- H9-Odont cells were cultured on dentine substrates for further differentiation.
Main Results:
- H9-Odont cells expressed significantly higher DSPP gene levels compared to H9-MSCs.
- Flow cytometry confirmed a higher percentage of DSPP-positive cells in H9-Odont compared to H9-Osteo.
- SEM revealed H9-Odont cells adopting morphology consistent with odontoblasts on dentine substrates.
Conclusions:
- hESCs can be reliably differentiated into odontoblast-like cells.
- This method provides a stable and scalable cell source for dental research.
- hESCs represent a viable 'off-the-shelf' cell source for future clinical use in dentistry.
