Method of producing human retinal pigment epithelial cells
First Claim
1. A method of producing a retinal pigment epithelial cell from a human pluripotent stem cell, which comprises(a) a step of providing isolated human pluripotent stem cells, wherein the isolated human pluripotent stem cells are dispersed by a cell dissociation solution,(b) a step of inducing differentiation of the isolated human pluripotent stem cells into pigment cells by adhesion cultivation of the isolated and dispersed human pluripotent stem cells of step (a) in a medium containing a Nodal signal inhibitor and a Wnt signal inhibitor at a concentration sufficient to induce differentiation of the human pluripotent stem cells into pigment cells in the absence of feeder cells to yield a culture containing the pigment cells,(c) a step of subjecting the obtained culture of step (b) to further adhesion culture to yield a culture containing a pigment cell colony, and(d) a step of isolating the pigment cell from the obtained culture of step (c) and culturing the cell to yield the retinal pigment epithelial cell.
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Abstract
The invention relates to a method of producing a retinal pigment epithelial cell from a human pluripotent stem cell, and a method of treating or preventing a retinal disease by using the produced cell. The retinal pigment epithelial cell is prepared by (a) inducing differentiation of a human pluripotent stem cell into a pigment cell by adhesion cultivation of a human pluripotent stem cell in a medium containing a Nodal signal inhibitor and a Wnt signal inhibitor in the absence of a feeder cell to give a culture containing the pigment cell, (b) subjecting the obtained culture to further adhesion culture to give a culture containing a pigment cell colony, and (c) isolating the pigment cell from the obtained culture and culturing the cell to give a retinal pigment epithelial cell.
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Citations
7 Claims
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1. A method of producing a retinal pigment epithelial cell from a human pluripotent stem cell, which comprises
(a) a step of providing isolated human pluripotent stem cells, wherein the isolated human pluripotent stem cells are dispersed by a cell dissociation solution, (b) a step of inducing differentiation of the isolated human pluripotent stem cells into pigment cells by adhesion cultivation of the isolated and dispersed human pluripotent stem cells of step (a) in a medium containing a Nodal signal inhibitor and a Wnt signal inhibitor at a concentration sufficient to induce differentiation of the human pluripotent stem cells into pigment cells in the absence of feeder cells to yield a culture containing the pigment cells, (c) a step of subjecting the obtained culture of step (b) to further adhesion culture to yield a culture containing a pigment cell colony, and (d) a step of isolating the pigment cell from the obtained culture of step (c) and culturing the cell to yield the retinal pigment epithelial cell.
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