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In vitro transdifferentiation of corneal epithelial-like cells from human skin-derived precursor cells

International Journal of Ophthalmology(English edition) 2012年第2期5卷 158-163页

作者： Sarawut Saichanma Ahnond Bunyaratvej Monnipha Sila-asna Department of Pathology Faculty of Medicine Ramathibodi Hospital Mahidol University Bangkok 14140 Thailand cell Engineering and Tissue Growth Institute of Molecular Biosciences Mahidol University Phuttamonthon Salaya Nakornpathom 73170 Thailand PYY Foundation (Foundation for Sustainable Development) PO Box 19 (kratum ban) Samutakorn 74110 Thailand

The damage of human corneal cells encounter with the problem of availability of corneal cells for replacement. Limitation of the source of corneal cells has been realized. An attempt of development of corneal epithelial-like cells from the human skin-derived precursor (hSKPs) has been made in this study. Combination of three essential growth factors: epidermal growth factor (EGF), keratinocyte growth factor (KGF) and hepatocyte growth factor (HGF) could demonstrate successfully induction of hSKPs to differentiation into corneal cells.The induced cells expressed the appearance of markers of corneal epithelial cells as shown by the presence of keratin 3 (K3) by antibody label and Western blot assay. The K3 gene expression of induced hSKPs cells as shown by reverse transcription-polymerase chain reaction (RT-PCR) technology was also demonstrated. The presence of these markers at both gene and protein levels could lead to our conclusion that the directional transdifferentiation of hSKPs cells into corneal epithelial cells was successfully done under this cell induction protocol. The finding shows a newly available stem cell source can be obtained from easily available skin. cells from autologous human skin might be used for corneal disorder treatment in future clinical application.

关键词： corneal epithelial-like cell human skin-derived precursor cell transdifferentiation

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