Fig. 4

Comparison of the frequencies of CD4⁺ Foxp3⁺ subsets in metastatic (MLNs) and non-metastatic lymph nodes (nMLNs) of patients with HNSCC. CD4⁺ T cells gated on the lymphocyte population and then frequencies of Foxp3⁺ T subsets were determined within CD4⁺ T cell gate. Horizontal bar is representative of the Mean ± SEM. *P value < 0.05