TGIF1 and central nervous system cancer: We then divided the patients into high‐grade (III and IV) and low‐grade (II) gliomas to evaluate the effect of TGIF1 on their prognoses; a favorable effect of low TGIF1 expression on the prognosis of patients with low‐grade glioma was only observed when analyzing the RNA‐seq data from the CGGA and TCGA (Figure S2A–C).