FKBP9 and glioblastoma: To the best of our knowledge, this is the first report about the prognostic value of the six RNAs (STEAP1, G6PC3, FKBP9, STEAP2, AACS, and LOXL1) in GBM, which may serve as new genetic clues for a better understanding about the development, progression, and recurrence of GBM.