Polymeric vs hydroxyapatite-based scaffolds on dental pulp stem cell proliferation and differentiation
Arash Khojasteh1, Saeed Reza Motamedian1, Maryam Rezai Rad1
1Arash Khojasteh, Oral and Maxillofacial Surgery, Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran 19839, Iran.
World Journal of Stem Cells
|December 8, 2015
Summary
Poly(lactic-co-glycolic acid) (PLLA) scaffolds effectively support human dental pulp stem cell (hDPSC) adhesion, proliferation, and osteogenic differentiation, showing promise for regenerative medicine applications.
Area of Science:
- Biomaterials Science
- Stem Cell Biology
- Regenerative Medicine
Background:
- Human dental pulp stem cells (hDPSCs) are multipotent cells with potential for bone regeneration.
- Scaffold biomaterials are crucial for supporting cell behavior in tissue engineering.
Purpose of the Study:
- To evaluate the suitability of four commercially available scaffold biomaterials for hDPSC growth and differentiation.
- To compare the performance of allograft, xenograft, synthetic, and composite scaffolds.
Main Methods:
- hDPSCs were isolated and cultured.
- Cells were seeded onto SureOss (Allograft), Cerabone (Xenograft), PLLA (Synthetic), and OSTEON II Collagen (Composite) scaffolds.
- Cell adhesion, proliferation, and osteogenic differentiation were assessed using SEM, DNA counting, and ALP activity assays.
Main Results:
- All scaffolds except SureOss supported hDPSC adhesion, proliferation, and differentiation.
- PLLA scaffolds demonstrated the highest cell proliferation and attachment.
- PLLA and OSTEON II Collagen scaffolds showed high alkaline phosphatase activity, indicating osteogenic differentiation.
Conclusions:
- PLLA scaffolds are effective in supporting hDPSC adhesion, proliferation, and osteogenic differentiation.
- PLLA scaffolds show significant potential for use in cell-based reconstructive therapies with hDPSCs.
