Fig. 7.
Low-dose irradiation provides only a transient competitive advantage to nonirradiated cells.
Chimeric mice after IUHSCT received transplants at 4 weeks of age with 30 × 106 B6Ly5.2 TCD BM cells 6 to 8 hours after receiving either 0 cGy or 82.5 cGy TBI. Four weeks after the initial postnatal transplantation, the mice again received 30 × 106 B6GFP TCD BM cells without receiving any TBI conditioning and engraftment of the 2 populations was serially analyzed.
