Fig. 6

The frequencies of neutrophils correlated negatively with the frequencies of T-cells in PDAC patients. Gating strategy for circulating T cells (A); percentage of neutrophils correlated to the percentage of T-cells in the blood of PDAC patients (n = 70) (B); expression of CD71 on neutrophils correlated to the percentage of T-cells (C); the prognostic Neutrophil-to-Lymphocytes-Ratio (NLR) in clinical control (n = 12) and PDAC patients and the correlation of NLR with CD71 on neutrophils in PDAC patients (n = 70) (D); expression of CD39 on T cells in clinical control (n = 12) and PDAC patients and the correlation of CD39 on T cells with CD71 on neutrophils in PDAC patients (n = 70) (E); expression of CD25 on T cells in clinical control (n = 12) and PDAC patients and the correlation of CD25 on T cells with CD71 on neutrophils in PDAC patients (n = 70) (F); *p < 0.05.