Pluronic F127 composite hydrogel for the repair of contraction suppressed full-thickness skin wounds in a rabbit model - 29/06/24
Highlights |
• | The findings indicate that the wound healing potential of AdSVF, AdMSC, and AdMSC-CM was enhanced when loaded in PF127 hydrogel and applied topically. |
• | Even though allogeneic AdSVF was found to promote wound healing in rabbits, it has a lower therapeutic potential than AdMSC and AdMSC-CM. |
• | Treatment with AdMSC and AdMSC-CM promoted collagen production, tissue organization, and epidermal regeneration, ultimately improving overall healing outcomes. |
• | Even though wounds treated with AdMSC outperformed AdMSC-CM, a significant difference in the healing quality was not observed in most instances. |
Abstract |
Hydrogels are commonly used as carriers for cell delivery due to their similarities to the extracellular matrix. A contraction-suppressed full-thickness wound model was used to evaluate the therapeutic potential of Pluronic F127 (PF127) hydrogel loaded with adipose-derived stromal vascular fraction (AdSVF), mesenchymal stem cells (AdMSC), and conditioned media (AdMSC-CM) for the repair of wounds in a rabbit model. The experimental study was conducted on forty-eight healthy adult New Zealand white rabbits randomly divided into eight groups with six animals each and treated with AdSVF, AdMSC, and AdMSC-CM as an injectable or topical preparation. The healing potential of different adipose-derived cell-based and cell-free therapeutics was evaluated based on percentage wound healing, period of epithelialization, epidermal thickness, scar evaluation, histopathology analysis, histochemical evaluation, immunohistochemistry (collagen type I), and hydroxyproline assay by comparing with the positive and negative control. Collagen density analysis using different staining methods, immunohistochemistry, and hydroxyproline assay consistently showed that delivering AdMSC and AdMSC-CM in PF127 hydrogel enhanced epithelialization, collagen production, and organization, contributing to improved tissue strength and quality. Even though allogeneic AdSVF was found to promote wound healing in rabbits, it has a lower potential than AdMSC and AdMSC-CM. The wound healing potential of AdMSC and AdMSC-CM was enhanced when loaded in PF127 hydrogel and applied topically. Even though wounds treated with AdMSC outperformed AdMSC-CM, a significant difference in the healing quality was not observed in most instances, indicating almost similar therapeutic potential. The findings indicate that the wound healing potential of AdMSC and AdMSC-CM was enhanced when loaded in PF127 hydrogel and applied topically. These treatments promoted collagen production, tissue organization, and epidermal regeneration, ultimately improving overall healing outcomes.
Le texte complet de cet article est disponible en PDF.Graphical abstract |
Keywords : Panniculus carnosus, Wound contraction, Animal model, Adhesive elastic bandage, Wound healing, Cutaneous wound
Plan
Vol 72 - N° 4
Article 103458- décembre 2024 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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