Engraftment levels of mice having transplantation with cells positive or negative for CD34 and CD38.

The mice had transplantation with Lin⁻c-kit⁺Sca-1⁺ marrow cells of 5-FU–treated mice that were separated on the basis of CD38 and CD34 expression. All cells in the 4 sorting windows (R15-R18; Figure 8) were injected into 7 mice per group. It is estimated that 60 CD38⁻CD34⁻, 200 CD38⁻CD34⁺, 30 CD38⁺CD34⁻, or 180 CD38⁺CD34⁺ cells were injected per mouse. Results shown are representative of 2 experiments.