Strong REST peaks43 were observed in GBM cells associated with NF1 exon23a splice regulators, which we confirmed for the same sites in CELF3, CELF4, and ELAVL3 in three primary pHGG cell lines by ChIP-qPCR (Fig. 7b and Supplementary Fig. S9g). The gene discussed is CELF4; the disease is glioblastoma.