High level hematopoietic repopulation by a single early embryonic HSC
| Recipient no. | Tissues transplanted | Time after transplantation | Human CD45+ cells in the recipient blood | Human CD45+ cells in the recipient BM | Human CD45+ cells in the recipient spleen |
| mo | % | % | % | ||
| 1 | AGM region | 4 | 29 | 42 | 4 |
| 2 | AGM region | 4 | 9 | NA | NA |
| 3 | AGM region | 4 | 24 | 45 | 31 |
| 4 | AGM region | 7 | 39 | 86 | 87 |
| 5 | AGM region | 7 | 73 | 93 | 93 |
| 6 | AGM region | 7 | 22 | 71 | 75 |
| 7 | AGM region | 8 | 90 | 94 | 96 |
| 8 | Yolk sac | 4.5 | 7 | NA | NA |
| 9 | Yolk sac | 7.5 | 56 | NA | NA |
| 10 | Yolk sac | 7.5 | 34 | 79 | 87 |
| Recipient no. | Tissues transplanted | Time after transplantation | Human CD45+ cells in the recipient blood | Human CD45+ cells in the recipient BM | Human CD45+ cells in the recipient spleen |
| mo | % | % | % | ||
| 1 | AGM region | 4 | 29 | 42 | 4 |
| 2 | AGM region | 4 | 9 | NA | NA |
| 3 | AGM region | 4 | 24 | 45 | 31 |
| 4 | AGM region | 7 | 39 | 86 | 87 |
| 5 | AGM region | 7 | 73 | 93 | 93 |
| 6 | AGM region | 7 | 22 | 71 | 75 |
| 7 | AGM region | 8 | 90 | 94 | 96 |
| 8 | Yolk sac | 4.5 | 7 | NA | NA |
| 9 | Yolk sac | 7.5 | 56 | NA | NA |
| 10 | Yolk sac | 7.5 | 34 | 79 | 87 |
NSG mice transplanted with HSCs derived from the human AGM region or yolk sac were observed for 4–8 mo. At the end of each experiment, the percentage of human CD45+ cells in the recipient peripheral blood, BM, and spleen was assessed by flow cytometry. NA, not assessed as the recipients died.