Fig. 3. PDAC-infiltrating immune cells express higher levels of galectin-9 compared with matched blood immune cells.

a Percentages of galectin-9 expression of indicated immune cells in matched blood and tumor specimens from PDAC patients. b Histogram and quantification of galectin-9 expression on all CD3⁺ T cells, c CD4⁺ T cells (CD3⁺CD4⁺CD8⁻, top), CD8⁺ T cells (CD3⁺CD4⁻CD8⁺, middle), γδ T cells (CD3⁺CD4⁻CD8⁻γδTCR⁺, bottom), d Monocytes/tumor-associated macrophages (TAMs, Lin⁻CD11b⁺CD14⁺, top) and monocytic myeloid-derived suppressor cells (M-MDSCs, Lin⁻CD11b⁺HLA-DR⁻CD14⁺, bottom). Each point represents data from one patient. Data, paired t-test. *p < 0.05, **p < 0.01.