S100A9 and central nervous system cancer: The results showed that TRIM38, CCR5, PLAU, P2RY8, and PROS1 have a higher immunoreaction score (IRS) in tumors than normal tissues (p < 0.05, Figure 9A–9C), while the IRS of HAMP and S100A9 in gliomas were lower than normal tissues (p < 0.05, Figure 9A–9C).