PCED1B and cancer: PC‐esterase domain containing 1B‐antisense RNA 1 (PCED1B‐AS1) is a recently identified lncRNA that was reported to participate in the progression of several human cancers such as pancreatic ductal adenocarcinoma [11], clear cell renal cell carcinoma [12], hepatocellular carcinoma [13], and glioma [14].