ArticleFrontiers in bioengineering and biotechnology2025
BMP2 peptide-modified polycaprolactone-collagen nanosheets for periodontal tissue regeneration.
Article in Frontiers in bioengineering and biotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Periodontitis leads to the degradation of tooth-supporting tissues, ultimately causing tooth mobility and loss. Guided tissue regeneration (GTR) surgery employs barrier membranes to facilitate tissue regeneration. However, conventional membranes lack bone-inducing properties, thereby limiting their efficacy. Our objective was to develop a bifunctional GTR membrane that combines mechanical stability with bone-inducing capabilities. To achieve this, we engineered BMP2 peptide-modified polycaprolactone-collagen nanosheets (BPCNs) to enhance periodontal regeneration by improving cell adhesion, osteogenesis, and anti-inflammatory activity. Methods: BPCNs with nanoscale thickness were fabricated using the spin-coating technique, incorporating BMP2 peptides, collagen, polycaprolactone (PCL), and polyvinyl alcohol (PVA). Successful conjugation of BMP2 to the BPCNs was verified through UV spectrophotometry and confocal laser scanning microscopy. The biocompatibility and cell adhesion properties of BPCNs were rigorously assessed using CCK-8 assays, microscopic imaging, and quantitative cell counting. Results: BPCNs demonstrated excellent biocompatibility, promoted fibroblast and bone marrow stem cell (BMSC) adhesion, and enhanced BMSC osteogenesis. Furthermore, BPCNs significantly promoted periodontal tissue regeneration in a rat model. Mechanistically, RNA-seq analysis revealed that BPCNs upregulated genes involved in tissue regeneration and downregulated proinflammatory pathways. Discussion: This study introduced a novel osteoinductive nanosheet, termed BPCNs, which provides a groundbreaking material-based approach for the regenerative repair of periodontal tissue defects. These findings position BPCNs as a highly promising candidate for GTR surgery, with significant potential to improve clinical outcomes in periodontal regenerative medicine.
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