Preparation of endodermal stem cells
First Claim
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1. An endodermal stem cell which has been differentiated in vitro from a multipotential stem cell, wherein the cell is organizer-specific-marker positive and E-cadherin positive.
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Abstract
It is intended to prepare endodermal stem cells by differentiation from multipotential stem cells followed by isolation. This object can be achieved by separating various endodermal stem cells having been differentiated from multipotential stem cells with the use of, as indications, a specific cell surface marker, an organizer-specific marker and the expression manner of E-cadherin.
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14 Claims
- 1. An endodermal stem cell which has been differentiated in vitro from a multipotential stem cell, wherein the cell is organizer-specific-marker positive and E-cadherin positive.
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6. A method for preparing an endodermal stem cell, which comprises the steps of:
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a) culturing multipotential stem cells, and b) selecting and separating cells expressing an organizer-specific marker and E-cadherin. - View Dependent Claims (7, 8)
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12. A method for preparing an intermediate stem cell of interest from a multipotential stem cell, which comprises the steps of:
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a) introducing a gene of a label protein in the genome of a multipotential stem cell so as to be adapted to the expression system of a predetermined marker gene, such that said label protein is expressed instead of or together with the predetermined marker gene, and b) selecting and separating intermediate stem cells of interest using the label of said label protein as an indicator. - View Dependent Claims (14)
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Specification