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Skin constructs for replacement of skin tissues for in vitro testing
1Department of Dermatology, Leiden University Medical Centre, Sylvius Laboratory, Wassenaarseweg 72, 2333 AL Leiden, The Netherlands. m.h.ponec-waelsch@lumc.nl
Advanced Drug Delivery Reviews
|December 4, 2002
Summary
Reconstructed human skin equivalents offer a viable alternative to animal testing, advancing our understanding of skin biology and toxicity testing. These advanced models are crucial for safety standards and studying skin diseases.
Area of Science:
- Biotechnology
- Dermatology
- Toxicology
Background:
- Reconstructed human skin equivalents (RHSEs) are increasingly used as alternatives to animal testing in scientific research and regulatory compliance.
- Current RHSEs can comprise only the epidermal layer or both epidermal and dermal compartments, incorporating various cell types like keratinocytes, melanocytes, fibroblasts, and endothelial cells.
Purpose of the Study:
- To highlight the advancements and applications of reconstructed human skin equivalents in biological research and safety assessments.
- To underscore the potential of RHSEs to replace animal experimentation and enhance knowledge of skin physiology and pathology.
Main Methods:
- Development and utilization of multi-layered reconstructed human skin models.
- Incorporation of specific cell types (keratinocytes, melanocytes, fibroblasts, endothelial cells) into epidermal and dermal compartments.
Main Results:
- The quality of current RHSEs has significantly improved, enhancing their suitability for skin toxicity testing.
- RHSEs provide well-characterized models for fundamental skin biology, wound repair, melanogenesis regulation, and skin disease pathogenesis.
Conclusions:
- Reconstructed human skin equivalents represent a significant advancement over traditional animal testing methods.
- These models offer versatile applications in toxicology, safety standards, and fundamental research into skin biology and diseases, including skin cancer.