So, the expression of the chemokine receptors on neutrophils in tumoral tissues as well as in peritumoral tissues or non‐tumor tissues was examined, and we found that tumoral neutrophils expressed significantly higher CXCR1 (Figure 2A and B) that has been reported to be involved in the chemotaxis of neutrophils,19, 20 while, neutrophils in peritumoral tissues or non‐tumor tissues expressed much lower CXCR1 (Figure 2A and B). The gene discussed is CXCR1; the disease is neoplasm.