Figure 1

Immunohistochemical features of tumour-infiltrating immune/inflammatory cells. The representative photos are shown: (A) CD8⁺ T cells, (B) CD4⁺ T cells, (C) FOXP3⁺ T cells, (D) CD68⁺ pan-macrophages, (E) CD163⁺ M2 macrophages, (F) CD204⁺ M2 macrophages, (G) CD66b⁺ neutrophils, and (H) CD68⁺HLA-DR⁺ M1 macrophages (CD68 in brown and HLA-DR in purple). Scale bars show 10 μm in length. A comparison of infiltrating immune/inflammatory cells into normal pancreas, chronic pancreatitis (non-cancerous pancreas, and PDC is shown in I. Columns and bars show mean (n=20) and standard error, respectively. Significance values were *P<0.05 and **P<0.01.