3D Polycaprolactone/Gelatin-Oriented Electrospun Scaffolds Promote Periodontal Regeneration

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Periodontal Research

Background:

• Periodontitis is a prevalent chronic inflammatory condition with challenging surgical treatment outcomes.
• Developing effective regenerative strategies for periodontal tissues remains a significant clinical need.

Purpose of the Study:

• To fabricate and evaluate a novel three-dimensional (3D) multilayered scaffold for periodontal regeneration.
• To assess the biocompatibility, cell-guiding capabilities, and in vivo efficacy of the scaffold in a periodontal defect model.

Main Methods:

• Fabrication of a 3D scaffold using electrospun polycaprolactone/gelatin (PCL/Gel) fibrous membranes.
• In vitro assessment of scaffold properties, including hydrophilicity, mechanical strength, and human periodontal ligament stem cell (hPDLSC) adhesion and proliferation.
• In vivo evaluation in a rat acute periodontal defect model to analyze new bone regeneration and tissue organization.

Main Results:

• The PCL/Gel scaffold exhibited favorable hydrophilic and mechanical properties.
• SEM and cytoskeleton staining confirmed the scaffold's ability to guide hPDLSC orientation.
• In vivo studies demonstrated new bone regeneration and organized fibrous tissue formation, mimicking natural periodontal structures.

Conclusions:

• Electrospun membrane-based 3D scaffolds represent a promising new treatment strategy for periodontal surgery.
• The scaffold's topographic cues effectively guide cellular behavior and promote periodontal tissue regeneration.
• This approach offers a potential breakthrough for improving the prognosis of surgical periodontal treatment.