Compared with the G1 + G2 grade, the FOXQ1 expression level in the G3 + G4 grade was higher in bladder urothelial carcinoma, brain lower-grade glioma, and liver hepatocellular carcinoma but lower in stomach adenocarcinoma and uterine corpus endometrial carcinoma (Figure 6C). The gene discussed is FOXQ1; the disease is central nervous system cancer.