The univariate Cox analysis was also applied to identify 11 prognostic TRP‐related genes specific to gliomas, including TIMP1, SERPINE1, NNMT, IGFBP2, EMP3, COL4A2, COL4A1, COL3A1, COL1A2, ANXA1, and CHI3L1 (Figure 6B). The gene discussed is COL4A2; the disease is glioma.