Figure 4

Concatenated ex vivo phenotypic analysis of CD4+Foxp3+ and CD4+Foxp3− cells in different compartments. Pie charts show the relative proportion of Foxp3+ (blue) and Foxp3− (gray) CD4+ T cells in each compartment; pie chart arcs show expression of the indicated markers in these subsets. CTLA-4, cytotoxic T-lymphocyte antigen 4; Foxp3, forkhead box P3; LAP, latency-associated peptide; PBMC, peripheral blood mononuclear cell.