PVT1 and tongue squamous cell carcinoma: The β-catenin/GSK3β signaling can be inactivated via downregulating the H19 lncRNA in tongue squamous cell carcinoma (TSCC) cells (Zhang et al., 2017) or through overexpressing the PVT1 (plasmacytoma variant translocation 1) lncRNA in OSCC and HNSCC cells (Wang and Zhang, 2019).