Additional file 4: Figure S2. of CXCR2–CXCL1 axis is correlated with neutrophil infiltration and predicts a poor prognosis in hepatocellular carcinoma

The number of CD15+, CD68+, CD3+, and S100+ cells in different regions of HCC tissues. Paraffin-embedded HCC sections were stained with anti-CD15, CD68, CD3, or S100 antibodies. The density of CD15+, CD68+, CD3+, and S100+ cells in non-tumoral (NT), peri-tumoral stroma (PS), and intra-tumoral (IT) regions of the same tissue block were calculated (n = 30). Results are expressed as means ± SEM (bars) of groups; *, P <0.05; ***, P <0.001. (TIFF 44 kb)