Analysis of the TCGA-GBM, TCGA-LGG GBM, CGGA, and GSE108474 datasets revealed that cIAP1 is highly expressed in gliomas relative to normal brain tissue, and glioma patients with high cIAP1 tumors have worse survival (Fig. 4d-e and S7b). This evidence concerns the gene BIRC2 and glioma.