To examine whether SLCO4A1-AS1 was dysregulated in PC, we first explored the expression profile of SLCO4A1-AS1 in PAAD from GEPIA database, and found that SLCO4A1-AS1 was upregulated in PAAD tissues compared to normal tissues (Figure 1a). The gene discussed is SLCO4A1; the disease is pancreatic adenocarcinoma.