TNFRSF10B and glioblastoma: While a statistical significance was not reached, the trends in these data also indicated that a low copy number of the genes encoding NKR ligands MICA (p = 0.0864) and MICB (p = 0.0864), and death receptor TRAIL-R2 (p = 0.0688), were associated with a poorer disease-free survival in GBM patients (Figure 1C,D,F).