VSIR and glioblastoma: VSIR is significantly upregulated in the tumor than normal samples in GBM, STAD, CHOL, LIHC, pancreatic adenocarcinoma (PAAD), brain lower-grade glioma (LGG), kidney renal clear cell carcinoma (KIRC), and acute myeloid leukemia (LAML) (P<0.001).