G-CSF treatment mobilizes DC2 but not DC1.

Peripheral blood samples were collected from normal (n = 9) and G-CSF-treated (n = 13) donors. DC1 and DC2 phenotype was characterized as shown in Figure 1, and absolute counts were determined as described in “Materials and methods.” Samples from 3 donors were collected before and after G-CSF treatment, whereas other samples were collected from independent groups of donors. Each symbol represents a single sample. Horizontal lines in each series represent median values. P values were determined using ttests for independent samples.