When the tumor samples were further analyzed by flow cytometry using triple color staining for CD11b, CD45, and GFP, results showed that 73.0%±6.3% of CD45hi/CD11bhi macrophages co-expressed GFP, but only 10.1%±2.9% of CD45mid/CD11bhi microglia co-expressed GFP (Figures S2C and S2D). The gene discussed is ITGAM; the disease is neoplasm.