UPF1 and hepatocellular carcinoma: Meanwhile, Pearson's correlation analysis suggested that UPF1 expression was inversely correlated with SNAI3‐AS1 in HCC tissues (Figure 4C), and knockdown of SNAI3‐AS1 could increase UPF1RNA and protein levels in HepG2 and Hep3B cells (Figure 4D,E).