SF3B1 and glioblastoma: Consistently, Sf3b1 expression levels were also elevated in mesenchymal-like -GBM vs. control samples from neural precursors from the EPed mouse model (Fig. 4h), being its expression in mesenchymal-like GBM also higher than in proneural-like GBM but this latter difference did not reach statistical significance (Fig. 4h).