Fig. 12.
Splenic repopulation by thymic emigrants.
Emigrants were transferred into syngeneic or allogeneic recipients as in Figure 11. Forty-nine days later, spleen cells were analyzed for CD4 and CD8 expression. Three individual recipients of each type are shown whose total nucleated spleen cell numbers were: syngeneic (2, 3, and 5 × 106) versus allogeneic (0.4, 1, and 4 × 106). The percentage of CD8 cells, indicated in the lower right quadrant, was notably lower in allogeneic recipients.
