Figure 5

Association of DC maturation and Treg frequency in the peripheral blood of HNSCC patients. The frequency of mature DC (CD14^negCD8.3+) after 9 days of differentiation and maturation culture is plotted against the frequency of CD4⁺CD25^highFOXP3⁺ Treg in the blood of HNSCC patients prior to RCT (n = 6). Treg frequencies are shown as percent (%) of CD4⁺ lymphocytes.