The analysis demonstrated that higher RAC1 expression is positively correlated with poor prognosis in GBMLGG, LGG, MESO, GBM, ACC, LIHC, KICH, UVM, LUAD, PAAD, CESC, and SKCM concerning DSS (Fig. S1a), and in GBMLGG, LGG, ACC, MESO, UVM, PAAD, KIPAN, and STES regarding PFI (Fig. S1b). This evidence concerns the gene RAC1 and glioblastoma.