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Generation of Self-assembled Vascularized Human Skin Equivalents
Published on: February 12, 2021
Living skin equivalents constructed using human amnions as a matrix
Lujun Yang1, Yuji Shirakata, Sho Tokumaru
1Department of Dermatology, Ehime University Graduate School of Medicine, Toon City, Ehime, Japan.
Journal of Dermatological Science
|October 27, 2009
Summary
This study developed a novel living skin equivalent (LSE) using human amnionic membrane (AM) as a dermal matrix. The resulting LSE demonstrated excellent morphology and mechanical properties, showing promise for clinical skin regeneration applications.
Area of Science:
- Regenerative Medicine
- Biomaterials Science
- Tissue Engineering
Background:
- Living skin equivalents (LSEs) are crucial for treating wounds, with biomaterials serving as dermal matrices.
- Human amnionic membrane (AM) possesses advantageous properties for dermal matrix applications in LSEs.
Purpose of the Study:
- To engineer a novel LSE utilizing human AM as the dermal matrix.
- To evaluate the biocompatibility and structural integrity of AM-based LSEs.
Main Methods:
- De-epithelialized human AM was assessed for supporting keratinocyte and fibroblast growth.
- A LSE was constructed by seeding keratinocytes onto fibroblast-populated AM.
- Histological analysis and in vivo transplantation onto nude mice were performed.
Main Results:
- De-epithelialized AM effectively supported keratinocyte and fibroblast adherence and proliferation.
- The developed LSE exhibited robust mechanical properties and well-differentiated epidermal morphology.
- In vivo grafts showed good survival and morphology on nude mouse wound models.
Conclusions:
- LSEs utilizing amnionic membrane as a matrix offer good morphology, cost-effectiveness, and mechanical strength.
- This AM-based LSE presents a viable option for clinical skin substitute applications.
- Further research may explore its full potential in wound healing and skin reconstruction.
