The Reconstructed Human Epidermis in vitro — a Model for Basic and Applied Research of Human Skin
| Autor: | Alexandra L. Rippa, Ekaterina A. Vorotelyak, Nadejda G. Gurskaya, Arkadii K. Beilin, V I Sharobaro |
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| Jazyk: | ruština |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
keratinocytes basal layer Human skin Dermatology 03 medical and health sciences 0302 clinical medicine Laminin medicine Stratum corneum stratum corneum Basement membrane biology integumentary system Chemistry granular layer Hemidesmosome basement membrane Cell biology 030104 developmental biology Infectious Diseases medicine.anatomical_structure RL1-803 immunohistochemistry biology.protein Loricrin spinous layer Epidermis Keratinocyte 030217 neurology & neurosurgery human epidermis |
| Zdroj: | Vestnik Dermatologii i Venerologii, Vol 96, Iss 2, Pp 24-34 (2020) |
| ISSN: | 2313-6294 0042-4609 |
| Popis: | Background. The reconstructed human epidermis (RE) is an in vitro tissue-engineering construct similar to the native epidermis. Objective. To develop a full-layer RE. Describe its structure: determine the presence of all layers of the epidermal component, including basal, spinous and granular layers and stratum corneum of the epidermis; detect the basement membrane, the border between the epidermal and mesenchymal component. Materials and methods. Isolation of keratinocytes and fibroblasts from human donor skin. Cultivation of keratinocytes and fibroblasts in vitro under 2D conditions, cell subculturing and 3D modeling of RE, obtaining cryosections, histological staining, immunohistochemical (IHC) study with antibodies to cytokeratins 14 and 10, Ki67 protein, loricrin, laminin 5 and plectin. Results. A technique was developed for the formation of RE. Histological examination showed that the stratification of keratinocyte layers occurs during the formation of RE. Layers are formed including basal, spinous and granular layers and stratum corneum. The IHC study has shown the proliferative activity of keratinocytes of the basal layer and has detected the presence of marker proteins of keratinocytes at different stages of differentiation. RE basal keratinocytes, like native ones, form hemidesmosomes and synthesize basement membrane proteins. Conclusions. A full-layer human RE was obtained in vitro. RE meets all the characteristics of the native epidermis and it is suitable for basic and practical research in the field of skin biology, dermatology, and cosmetology. |
| Databáze: | OpenAIRE |
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