发明名称 |
Method for selecting reduced differentiation resistance human induced pluripotent stem cells |
摘要 |
The present invention provides a method for selecting human induced pluripotent stem (iPS) cells which can be safely used for transplantation. That is, the present invention provides a method for selecting human iPS cells having reduced differentiation resistance, comprising the steps of: (1) inducing differentiation of human iPS cells; (2) detecting remaining undifferentiated cells after the step (1); and (3) selecting human iPS cells whose rate of remaining undifferentiated cells detected in step (2) is equivalent to or not more than that of control cells. |
申请公布号 |
US8932857(B2) |
申请公布日期 |
2015.01.13 |
申请号 |
US201113704584 |
申请日期 |
2011.06.15 |
申请人 |
Kyoto University |
发明人 |
Yamanaka Shinya;Takahashi Kazutoshi;Ohnuki Mari |
分类号 |
C12N5/00;C12N5/074 |
主分类号 |
C12N5/00 |
代理机构 |
Knobbe, Martens, Olson & Bear, LLP |
代理人 |
Knobbe, Martens, Olson & Bear, LLP |
主权项 |
1. A method for selecting human induced pluripotent stem (iPS) cells having reduced differentiation resistance, said method comprising the steps of: (1) inducing differentiation of human iPS cells in said population;
(2) detecting remaining undifferentiated cells after the step (1) and determining the percentage of said undifferentiated cells in said population, wherein the undifferentiated cells are detected by measurement of undifferentiated cell marker selected from the group consisting of S SEAA-3, S SEA-4, TRA-1-60, TRA-1-81, OCT3/4, Nanog, and Rex 1; and (3) (i) determining said population as having reduced differentiation resistance when the percentage of remaining undifferentiated cells detected in step (2) is equivalent to or not more than the percentage of remaining undifferentiated cells after induction of differentiation in reduced differentiation resistant human embryonic stem cells H9, KhES1 or KhES3, or (ii) determining said population as having reduced differentiation resistance when the percentage of remaining undifferentiated cells detected in step (2) is not more than 4.7%. |
地址 |
Kyoto JP |