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Novel In Situ-Cross-Linked Electrospun Gelatin/Hydroxyapatite Nonwoven Scaffolds Prove Suitable for Periodontal
Martin Philipp Dieterle1, Thorsten Steinberg1, Pascal Tomakidi1
1Division of Oral Biotechnology, Center for Dental Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79110 Freiburg, Germany.
New scaffolds made from gelatin and hydroxyapatite show promise for periodontal tissue engineering. These materials effectively support cell growth and differentiation, offering a potential solution for treating periodontal diseases and preventing tooth loss.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Periodontology
Background:
- Periodontal diseases are a leading cause of tooth loss globally.
- Current regenerative treatments are limited, necessitating novel approaches.
- Scaffold-based tissue engineering offers a promising avenue for periodontal regeneration.
Purpose of the Study:
- To develop and evaluate novel nonwoven scaffolds for periodontal tissue engineering.
- To assess the biocompatibility and cellular response to electrospun gelatin/hydroxyapatite scaffolds.
- To investigate the potential of these scaffolds in supporting human mesenchymal stem cells and periodontal ligament fibroblasts.
Main Methods:
- Electrospinning of gelatin/hydroxyapatite nonwovens with in situ glyoxal cross-linking.
- Incorporation of additional porosity using extractable polyethylene glycol fibers.
- Cell colonization, metabolic activity, and differentiation analysis using hMSCs and PDLFs.
Main Results:
- Electrospun scaffolds efficiently supported adhesion and survival of hMSCs and PDLFs.
- Scaffolds with enhanced porosity demonstrated significantly greater cell infiltration.
- Cocultures promoted coordinated expression of differentiation markers like periostin and osteopontin.
Conclusions:
- Novel in situ-cross-linked electrospun nonwoven scaffolds are effective for periodontal tissue engineering.
- The scaffolds facilitate cell adhesion, survival, and differentiation.
- This platform presents a promising candidate for regenerative periodontal therapies.
