Fig. 3From: Repeated cycles of 5-fluorouracil chemotherapy impaired anti-tumor functions of cytotoxic T cells in a CT26 tumor-bearing mouse modelPercentage and PD-L1 expression of infiltrated immune cells in the tumor. Tumor tissues from 5-FU C1, C3 and control groups (each group, n = 3) were minced and digested. The percentages of CD45+ cells (a), CD8 T-cells (b) and NK cells (c) were analyzed by flow cytometry. PD-L1 expression in CD45− cells (d) is shown. Student’s t-test was used to analyze the significance between groupsBack to article page