PCAT19 and neoplasm: MicroRNAs (miRNA) negatively correlated with PCAT19 (miR‐210, miR‐331, miR‐324, miR‐769, miR‐33a, miR‐301a, miR‐1301, and miR‐33b) and six tumor‐suppressing genes were introduced to the construction of ceRNA network (Figure 2E).