PSPC1 and neoplasm: Notably, we revealed the potential interaction between CASC19 and a metastatic reprogramming protein PSPC1 (paraspeckle component 1), which is known to be involved in the nucleocytoplasmic shuttling of oncoproteins like β-catenin to promote tumor progression (Lang et al. 2019; Nazemalhosseini Mojarad et al. 2015).