MEG3 and cancer: For example, the lncRNA MEG3 shared multiple PCGs with six other lncRNAs, of which three (TP73‐AS1, LINC00472 and LINC00473) (Chen et al., 2018; Mazor et al., 2019; Shen et al., 2015) were also confirmed to be of biological significance in cancer (Fig. 3B).