To evaluate the involvement of LIF and CCL2 in GBM, we performed Gene Set Enrichment Analysis (GSEA) 42, 43 using three TCGA_GBM sub-datasets: mGBM vs. uGBM 25, LIFHigh/CCL2Highvs. LIFLow/CCL2Low, and mesenchymal subtype vs. other subtypes. This evidence concerns the gene CCL2 and glioblastoma.