URB2 and glioblastoma: We also revealed that URB2 was not related to MSI (GBM, p = 0.36; LGG, p = 0.61), TNB (GBM, p = 0.59; LGG, p = 0.18), or TMB in GBM (p = 0.7) (Figures 7B–D), while URB2 was related to TMB in LGG (p = 0.0075) (Figure 7D).