CD274 and glioblastoma: In particular, SOAT1 expression had a significant positive correlation with PD-L1 (CD274, Aliases for PD-L1 gene) (r=0.52 P=4.01e-38 in LGG, r=0.39 P=2.06e-07 in GBM), monoclonal antibodies against which have been used in clinical trials of GBM (37).