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Figure 1: (a) Percentage of CD4+CD25interCD127low/-(CD25inter) and CD4+CD25highCD127low/-(CD25high) Tregs in the tumour/ node microenvironment and peripheral circulation of HNSCC patients (*p <0.001). (b) Percentage of CD25inter and CD25high Tregs from patients with tumours arising from different HNSCC subsites (laryngeal and oropharyngeal) in the tumour/node microenvironment and peripheral circulation (*p <0.001; **p =0.01; ***p =0.04). |