For OS, RAC1 was found to be a hazard factor for GBMLGG, LGG, LIHC, MESO, GBM, ACC, LUAD, SKCM, PAAD, KICH, UVM, and BLCA, with a p-value < 0.05 (Fig. 2b). This evidence concerns the gene RAC1 and glioblastoma.