PVT1 and glioblastoma: Gene expression-based survival analysis showed that six from seven detected highly m6A modified lncRNAs (PVT1, SLCO4A1, HRAT92, AGAP2-AS1, CEROX1 and ENSG00000262223 had an impact on the prognosis of low-grade glioma (LGG) and GBM (FDR adj.