Corneal epithelial sheet and process for producing the same

A - Human Necessities – 61 – L

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A61L 27/00 (2006.01) A61F 2/14 (2006.01)

Patent

CA 2572803

A corneal epithelial sheet having a cell layer similar to the anterior epithelium of cornea. A corneal epithelial sheet is obtained through the step (a) of separately preparing a first cell being a self cell and a second cell whose origin is different from that of the first cell, the step (b) of planting the first cell and the second cell on a collagen layer and culturing them, and the step (c) of after proliferation of the first cell and second cell resulting in formation of a cell layer, bringing the outermost stratum of the cell layer into contact with air.

Cette invention a pour objet une surface épithéliale cornéenne dotée d~une couche cellulaire similaire à l~épithélium antérieur de la cornée. Cette surface épithéliale cornéenne est obtenue par le biais d~une étape (a) de préparation séparée d~une première cellule, une cellule propre, et d~une deuxième cellule dont l~origine est différente de celle de la première cellule, par le biais d~une étape (b) d~implantation et de culture de la première cellule et de la deuxième cellule sur une couche de collagène, et par le biais d~une étape (c), après prolifération de la première cellule et de la deuxième cellule résultant en la formation d~une couche cellulaire, de mise en contact de la strate située le plus à l~extérieur de cette couche cellulaire, avec l~air.

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