METTL16 and pancreatic adenocarcinoma: To explore the mechanism of METTL16 in PDAC, we obtained a list of METTL16 co-expressed genes in TCGA PAAD from the online database LinkedOmics22, and we performed the KEGG pathway analysis on these genes by The Database for Annotation, Visualization, and Integrated Discovery (DAVID)23, 24.