Fig. 1
From: Age-related changes in T lymphocytes of patients with head and neck squamous cell carcinoma
Lymphocyte populations of different ages from healthy donors and HNSCC patients. Correlations between frequencies of CD8+ (a) and CD4+ T cells (b) and age in healthy donors. Frequencies of CD8+ (c), CD4+ T cells (d) and Treg (e) in healthy donors and tumor patients of different age groups (healthy < 40: light blue; healthy > 40 and ≤ 70: blue; healthy ≥70: dark blue; tumor blood (TB) < 70: light red; tumor blood ≥70: red; TIL (TT) < 70: yellow; TIL ≥ 70: orange). Cell populations were plotted in a regression line (a-b, f) (healthy: blue circles; TIL: yellow rhombs). All data are plotted showing the mean. P < 0.01 (**); p < 0.001 (***); p < 0.0001(****)