MiR‐93 in glioma cell lines and glioma tissues was significantly upregulated, and it is correlated with clinicopathologic grading and survival in patients and may directly activate PI3K/Akt signaling by suppressing PTEN, PHLPP2, and FOXO3 expression targeting 3′‐untranslated regions (UTRs) (Jiang et al., 2015b). This evidence concerns the gene PTEN and central nervous system cancer.