Model for human skin reconstructed in vitro composed of associated dermis and epidermis

Sao Paulo Medical Journal

Luís Ricardo Martinhão Souto²  Jussara Rehder¹  José Vassallo¹  Maria Letícia Cintra¹  Maria Helena Stangler Kraemer¹  Maria Beatriz Puzzi¹ 

[1] ,Universidade Estadual de Campinas Faculdade de Ciências Médicas Campinas São Paulo ,Brazil

关键词: Cell culture;    Collagen;    Fibroblasts;    Keratinocytes;    Skin;    Cultura de células;    Colágeno;    Fibroblastos;    Queratinócitos;    Pele;   

DOI  :  10.1590/S1516-31802006000200005

来源: SciELO

【 摘 要 】

CONTEXT AND OBJECTIVE: The technique of obtaining human skin with dermis and epidermis reconstructed from cells isolated from patients can enable autologous skin grafting on patients with few donor sites. It also enables in vitro trials on chemicals and drugs. The objective of this work was to demonstrate a method for obtaining human skin composed of associated dermis and epidermis, reconstructed in vitro. DESIGN AND SETTING: Experimental laboratory study, in the Skin Cell Culture Laboratory of Faculdade de Ciências Médicas, Universidade Estadual de Campinas. METHODS: Cells from human fibroblast cultures are injected into bovine collagen type I matrix and kept immersed in specific culturing medium for fibroblasts. This enables human dermis reconstruction in vitro. On this, by culturing human keratinocytes and melanocytes, differentiated epidermis is formed, leading to the creation of human skin composed of associated dermis and epidermis, reconstructed in vitro. RESULTS: We showed that human skin composed of associated dermis and epidermis can be successfully reconstructed in vitro. It is histologically formed in the same way as human skin in vivo. Collagen tissue can be identified in the dermis, with cells and extracellular matrix organized in parallel to multilayer epidermis. CONCLUSIONS: It is possible to obtain completely differentiated human skin composed of associated dermis and epidermis, reconstructed in vitro, from injection of human fibroblasts into bovine collagen type I matrix and culturing of human keratinocytes and melanocytes on this matrix.

【 授权许可】

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