Skin substitutes to enhance wound healing

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Regenerative Medicine

Background:

• Biologically-based skin substitutes have emerged as commercial products in the last five years.
• First-generation products like Integra and Alloderm serve as dermal replacements for severe burns.
• Tissue-engineered skin substitutes are now available and show improved healing for various wound types.

Purpose of the Study:

• To review the development and applications of biologically-based skin substitutes.
• To highlight the advancements in tissue-engineered skin for wound healing.
• To discuss the potential of new living skin substitutes for chronic ulcers.

Main Methods:

• Review of commercially available and emerging biologically-based skin substitutes.
• Description of the composition and production of key products (Integra, Alloderm, Dermagraft-TC, Dermagraft, Apligraf).
• Summary of clinical applications and outcomes for different wound types.

Main Results:

• Dermagraft-TC improves healing in deep second-degree burns.
• Dermagraft and Apligraf, containing living cells, are nearing approval for diabetic foot and venous stasis ulcers.
• These allogeneic products have shown no rejection issues and are free from pathogen contamination.

Conclusions:

• Biologically-based skin substitutes represent a revolutionary advancement in wound care.
• Tissue-engineered skin offers enhanced healing properties through cellular activity and matrix deposition.
• These innovative products may also serve as a platform for future gene therapy applications.