XIST and non-small cell lung carcinoma: lncRNA Xist also positively mediates Bcl-2, LARP1, PXN and Notch-1, CBLL1, and RING1 expression by functioning as a ceRNA of miR-449a, miR-374a, miR-137, miR-212-3p, and miR-744, which are involved in cell proliferation, migration, invasion, EMT, and death in NSCLC (Xu Z.Z. et al., 2017; Zhang Y.L. et al., 2017; Jiang H.J. et al., 2018; Wang et al., 2018c, 2019c; Qiu et al., 2019).