Fig. 3.

CXCL9 up-regulates PD-L1 expression in T24 cells. T24 cells were treated with the supernatants from cultured DCs alone, T24 alone or co-cultured TADCs in the presence or absence of additional recombinant CXCL9 (100 ng/mL). The levels of PD-L1 in individual groups of T24 cells were quantified by flow cytometry using specific anti-PD-L1. Data are representative flow histograms or expressed as the mean ± SD of each group of cells from three separate experiments. a, c Flow cytometry analysis. b, d Quantitative analysis. **P < 0.01