Fig. 3.
Effect of increasing concentrations of IL-2 added to day 6 cultures on the ploidy of CFU-MK–derived megakaryocytes.
For each concentration of IL-2, the percentage increase in the absolute number of polyploid megakaryocytes (more than 4N) was calculated in comparison with cultures without IL-2. Each point represents the mean ± SEM from 3 experiments.