Fig. 2.

Expression of forkhead box P3 (FOXP3) in cord blood (CB) and adult CD4⁺ CD25⁺ T cells. Representative flow cytometry analysis of CD4⁺ CD25⁺ T cells from cord and adult peripheral blood of healthy donors. Cells were stained with peridinin chlorophyll (PerCP)-labelled CD4, fluorescein isothiocyanate (FITC)-labelled CD25 and antigen-presenting cell (APC)-labelled FOXP3 monoclonal antibodies. The oval region depicting CD4⁺ T cells expressing high levels of CD25 in the dot plot from adult blood is the same used for the cord blood dot plot.