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Scarring vs. functional healing: Matrix-based strategies to regulate tissue repair
Timothy J Keane1, Christine-Maria Horejs2, Molly M Stevens3
1Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, UK; Department of Bioengineering, Imperial College London, Exhibition Road, London SW7 2AZ, UK; Institute of Biomedical Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, UK.
Mammalian wound healing often results in fibrotic scarring, hindering tissue regeneration. This review explores extracellular matrix (ECM) roles and matrix-based strategies to limit fibrosis and improve healing.
Area of Science:
- Tissue repair mechanisms in vertebrates
- Mammalian wound healing and fibrosis
- Extracellular matrix (ECM) in tissue regeneration
Background:
- Vertebrates have tissue repair mechanisms, but mammals often form scars.
- Fibrosis, a major cause of death, opposes functional tissue regeneration.
- Effective wound healing strategies must limit fibrosis.
Purpose of the Study:
- To highlight the importance of native matrix components in mammalian wound healing.
- To compare mammalian scarring with scar-free healing.
- To review matrix-based strategies for improving wound healing outcomes.
Main Methods:
- Review of scientific literature on extracellular matrix (ECM) and wound healing.
- Comparative analysis of scarring versus regenerative healing.
- Overview of current matrix-based therapeutic strategies.
Main Results:
- The extracellular matrix (ECM) is crucial for guiding wound healing.
- ECM deposition and remodeling differ significantly between scarring and regeneration.
- Native ECM components play a vital role in determining healing outcomes.
Conclusions:
- Understanding ECM dynamics is key to mitigating fibrosis.
- Targeting the ECM offers promising therapeutic avenues for improved wound healing.
- Matrix-based strategies hold potential for shifting the balance from scarring to regeneration.
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