Percentage of donor nucleated cells in the blood of individual secondary recipients at 6 months after transplantation.

Reflecting the 1:1 ratio of CD38⁻ and CD38⁺cells (Figure 12), 1000 Ly-5.1 CD38⁻ or CD38⁺bone marrow cells of the primary recipients were transplanted into individual secondary Ly-5.2 recipients. Results shown are representative of 2 experiments.