Figure 2

Treg frequencies in peripheral blood of HNSCC patients. Treg frequencies of HNSCC patients before and after RCT (n = 13) or from healthy individuals (n = 10) were determined as illustrated in Figure 1. Results are shown as percentages of CD4⁺CD25^highFOXP3⁺ Treg of CD4⁺ lymphocytes and displayed in quartiles of 0, 25, 75 and 100. Horizontal bars indicate geometric mean values.