TGFBR2 and glioblastoma: As shown in Figure 7A,B, miR‐1224‐5p was down‐regulated in GBM tissues from 40 patients compared to normal adjacent tissues, while TGFBR2 mRNA was up‐regulated in GBM tissues from 40 patients compared to normal adjacent tissues (Figure 7A,B).Moreover, the MIR4435‐2HG expression level was inversely correlated with miR‐1224‐5p expression level, but was positively correlated with TGFBR2 mRNA expression level in the GBM tissues (Figure 7C,D).