PVT1 and gastric cancer: Table 2 lists the typical cases of differentially expressed GENCODE lncRNAs and candidate lncRNAs. Up/downregulated lncRNAs with | log2(fold_change)| > 3 and 5 smallest p-values were illustrated. Some of the differentially expressed lncRNAs in our results have also been reported in previous gastric cancer studies, such as PVT1 (ENSG00000249859.3), which is upregulated in gastric cancer tissues, promotes gastric cancer cell division and angiogenesis, and is associated with a poor prognosis (Kong et al., 2015).