CPSF6 and glioblastoma: Of note, in the study of Masamha et al. [11] only 60 genes had significantly shortened 3′ UTRs in glioblastoma relative to normal brain, and only 24 of these underwent significant 3′ UTR shortening upon CFIm 25 knock-down in HeLa cells, in spite of 1453 genes being affected by the CFIm 25 knock-down.