Number of Erythroid Colonies Formed by Murine Bone Marrow Cells Transduced With Selective Amplifier Genes Under Various Culture Conditions
| Transgene . | Without rhEpo . | With rhEpo* . | ||
|---|---|---|---|---|
| . | None . | rhG-CSF . | β-Estradiol . | . |
| GCRER | 0 | 9 | 6 | 13 |
| LacZ | 0 | 0 | 0 | 22 |
| None | 0 | 0 | 0 | 13 |
| Transgene . | Without rhEpo . | With rhEpo* . | ||
|---|---|---|---|---|
| . | None . | rhG-CSF . | β-Estradiol . | . |
| GCRER | 0 | 9 | 6 | 13 |
| LacZ | 0 | 0 | 0 | 22 |
| None | 0 | 0 | 0 | 13 |
rhG-CSF, rrSCF, and rhIL-6 were also added to the culture media.