IFNG and glioblastoma: A total of 34 genes were sorted out by filtering 198 genes from GO term: response to interferon-gamma (accession GO: 0034341, organism: Homo sapiens) with 356 genes that were positively correlated with PD-L1 expression (p < 0.05; r > 0.5) from the TCGA lower grade glioma (LGG)/GBM datasets.