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Original Paper

Reconstructed Human Cornea Produced in vitro by Tissue Engineering

Germain L.a · Auger F.A.a · Grandbois E.a · Guignard R.a · Giasson M.b · Boisjoly H.c · Guérin S.L.b

Author affiliations

aLaboratoire d’Organogénèse Expérimentale (LOEX), Hôpital du Saint-Sacrement, Québec et Département de Chirurgie, Université Laval, Sainte-Foy, bLaboratoire d’Endocrinologie Moléculaire, Centre de Recherche du CHUL, Québec, et cDépartement d’Ophtalmologie, Hôpital Maisonneuve-Rosemont, Université de Montréal, Montréal, Canada

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Pathobiology 1999;67:140–147

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Published online: June 30, 1999
Issue release date: May – June

Number of Print Pages: 8
Number of Figures: 4
Number of Tables: 1

ISSN: 1015-2008 (Print)
eISSN: 1423-0291 (Online)

For additional information: https://www.karger.com/PAT

Abstract

The aim of the present study was to produce a reconstructed human cornea in vitro by tissue engineering and to characterize the expression of integrins and basement membrane proteins in this reconstructed cornea. Epithelial cells and fibroblasts were isolated from human corneas (limbus or centre) and cultured on plastic substrates in vitro. Reconstructed human corneas were obtained by culturing epithelial cells on collagen gels containing fibroblasts. Histological (Masson’s trichrome staining) and immunohistological (laminin, type VII collagen, fibronectin as well as β1, α3, α4, α5, and α6 integrin subunits) studies were performed. Human corneal epithelial cells from the limbus yielded colonies of small fast-growing cells when cultured on plastic substrates. They could be subcultured for several passages in contrast to central corneal cells. In reconstructed cornea, the epithelium had 4–5 cell layers by the third day of culture; basal cells were cuboidal. The basement membrane components were already detected after 3 days of culture. Integrin stainings, except for the α4 integrin, were also positive after 3 days. They were mostly detected at the epithelium-stroma junction. Such in vitro tissue-engineered human cornea, which shows appropriate histology and expression of basement membrane components and integrins, provides tools for further physiological, toxicological and pharmacological studies as well as being an attractive model for gene expression studies.


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    External Resources
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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Published online: June 30, 1999
Issue release date: May – June

Number of Print Pages: 8
Number of Figures: 4
Number of Tables: 1

ISSN: 1015-2008 (Print)
eISSN: 1423-0291 (Online)

For additional information: https://www.karger.com/PAT


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