PVT1 and central nervous system cancer: Among the nine EMT-related lncRNAs identified in this study, LINC00900, MIR210HG, MIR22HG, PVT1, and SNHG18 were positively correlated with glioma malignancy, whereas HAR1A, LINC00641, SLC25A21-AS1, and SNAI3-AS1 were negatively correlated with glioma malignancy.