| 摘要 |
The present invention relates to the field of pluripotent stem cell culture media and to methods for culturing cells to produce such media. Furthermore, the present invention provides methods and materials for propagating pluripotent stem cells in a substantially undifferentiated state, with and without a feeder layer. Conditioned medium for the propagation of pluripotent stem cells is produced by a method comprising the steps of : a. Culturing cells that supply the conditioning factors, e.g. amniotic fluid cells or cells isolated from umbilical cord tissue, b. Adding a base medium to the cells that supply the conditioning factors, c. Exposing the base medium to the cells that supply the conditioning factors for a period of time sufficient to condition the medium, and d. Removing the conditioned medium. |
