Fig. 1.
Engraftment of human CD34+ cell-enriched fractions into NOD/SCID BM. The percent of huCD45+ cells found in NOD/SCID BM are plotted for individuals in experiments 1 through 8. The number of input cells, pretreatment radiation dose, and duration of the experiment are listed below each experiment number. In experiments 1 and 2, 10 μg each of human: IL-3, GM-CSF, and SCF was administered three times per week to one group of mice (•), while others were given no growth factors (○).