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Epidermal-dermal interactions in adult skin
The Journal of Investigative Dermatology
|July 1, 1982
Summary
Adult epidermis maintains basic keratinization independently of the dermis. However, the dermis influences regional skin specificity and certain inherited skin disorders like lamellar ichthyosis and psoriasis.
Area of Science:
- Dermatology
- Developmental Biology
- Cell Biology
Background:
- Epidermal-dermal interactions are crucial for skin development.
- The review focuses on maintaining epithelial specificity in adult skin.
Purpose of the Study:
- To examine the role of epidermal-dermal interactions in adult skin epithelial specificity.
- To explore how the dermis influences regional epidermal characteristics.
- To investigate the genetic basis of inherited skin abnormalities.
Main Methods:
- Review of existing literature on epidermal-dermal interactions.
- Analysis of studies using epidermal-dermal recombination techniques.
- Examination of long-term cultivation of human skin on athymic mice.
Main Results:
- Adult epidermis can keratinize without a specific dermis, differentiating with non-dermal tissues.
- Dermis influences regional epidermal traits like thickness and folding patterns.
- Inherited disorders like lamellar ichthyosis and psoriasis involve specific epidermal-dermal interactions.
Conclusions:
- Basic epidermal keratinization is intrinsic, but dermis modulates regional specificity.
- Inherited skin conditions may result from complex genetic or environmental interactions.
- Epidermal-dermal recombination is a valuable tool for studying skin diseases.