Figure 1
Neutrophil marker MPO expression in gastric cancer and adjacent tissue and control tissues.
(A) Overview of MPO neutrophil staining in the gastric cancer versus cancer adjacent tissue array. For the first 9 rows, each row has 5 pair samples. Each pair of samples consists of one cancer sample (with a red fame) and one cancer adjacent sample (with a yellow frame) with the cancer sample comes first (with exception that the first pair of samples of line 3 happened to be both cancerous tissues). The last 11 samples contains 10 normal gastric tissue samples (with green frames) (although one of them still has lymphocyte infiltration that was excluded for analysis) and one tissue sample of liver cancer (with a light-green frame). Scale bar, 300 μm (B) Representative magnified pictures of control, gastric cancer and cancer adjacent tissue samples Scale bar, 300 μm. Positive experiments to show that MPO is a neutrophil specific marker could be seen in Supplementary Fig. 1.
