| 摘要 |
Provided is a method of identifying a ratio of placental stem cells to stem cells from a second source, wherein said placental stem cells are comprised within placental perfusate, comprising identifying a ratio of said placental stem cells to stem cells from a second source in a total number of cells that, when a number of said placental perfusate cells and stem cells from a second source are cultured together for a time and under conditions sufficient to allow the formation of colony-forming units, produces a greater number of colony-forming units than a number of placental stem cells or stem cells from a second source, equivalent to said total number of cells, alone, wherein said placental stem cells or stem cells from a second source are not human totipotent cells. |
