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  • Title: Renewal and differentiation of keratinocytes cultured on dead de-epidermalized dermis.
    Author: Heenen M, De Graef C, Parent D, De Dobbeleer G, Galand P.
    Journal: Cell Prolif; 1992 Jul; 25(4):311-9. PubMed ID: 1379479.
    Abstract:
    Human keratinocytes grown at an air-liquid interface on dead de-epidermalized dermis exhibit a pattern of organization similar to that seen in vivo. Cell renewal is limited to the basal layer. The cell cycle time determined after 7 days of culture, using a percentage labelled mitoses (PLM) technique, was about 15 h. This result is comparable with published data for cultivated keratinocytes but is shorter than the parameter proposed for epidermis in vivo. Appearance of labelled cells in the granular layer was observed 4 days after pulse labelling. Despite this high cell renewal, a normal cell differentiation with expression of various keratinization markers was maintained.
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