Figure 1

Single cell suspensions from OSCC tumour tissue (n = 24), sentinel node (n = 25), non-sentinel node (n = 24) and PBMC (n = 26) were analyzed by flow cytometry regarding T cell activation surface antigens. Percentages of CD69+ (A,B), CD71+ (C,D), HLA-DR + (E,F) CD4+ and CD8+ differ significantly between analyzed compartments. Mean with SD is represented by solid line and bars within the graph. Kruskal–Wallis test was used to compare groups. *< 0.05, **< 0.01, ***< 0.001, ****< 0.0001.