Microarray data from four publicly available glioblastoma datasets, The Cancer Genome Atlas (TCGA), Rembrandt, Murat Brain, and Sun Brain, were systematically retrieved to begin verifying the level of BCL2L13 in normal brain tissue (NBT) and GBM, and the mRNA level of BCL2L13 was significantly upregulated in GBM compared to NBT (Fig. 1A). This evidence concerns the gene BCL2L13 and glioblastoma.