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A collagen-based bi-layered composite dressing for accelerated wound healing
Leilei Sun1, Laihao Li2, Yueqi Wang2
1College of Life Science, Yantai University, No.30, Qing Quan Road, Yantai, Shandong Province, 264005, PR China.
Journal of Tissue Viability
|September 20, 2021
Summary
This study developed a collagen-based composite dressing that effectively promotes wound healing by reducing inflammation and enhancing collagen synthesis. The novel dressing accelerates re-epithelialization and fibroblast proliferation for ideal wound care.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Wound Healing Research
Background:
- Effective wound dressings are crucial for healing complex injuries.
- Marine biomacromolecules offer promising biocompatible materials for tissue regeneration.
- Collagen and chitosan are widely explored for their wound healing properties.
Purpose of the Study:
- To fabricate and evaluate a novel collagen-based bi-layered composite dressing.
- To assess the dressing's efficacy in promoting wound healing in vivo.
- To elucidate the underlying mechanisms of action for enhanced wound repair.
Main Methods:
- Developed a bi-layered composite dressing using collagen and chitosan.
- Utilized a full-thickness skin defect model for in vivo evaluation.
- Quantified inflammatory cytokines and growth factors using ELISA; assessed fibroblast activity via CCK-8 assay.
Main Results:
- The collagen-based dressing significantly accelerated wound closure and re-epithelialization within 28 days.
- Dressings reduced inflammatory cytokine levels while upregulating growth factors.
- Enhanced collagen synthesis and fibroblast viability/proliferation were observed.
Conclusions:
- The non-crosslinked collagen-based bi-layered composite dressing is an efficient and ideal candidate for wound healing applications.
- Findings support the potential of this dressing in advancing wound care strategies.
