Systematic evaluation of PSMD1-14 expression revealed significant upregulation (p<0.05) of PSMD1, PSMD2, PSMD3, PSMD4, PSMD7-PSMD14 transcripts in pancreatic tumor tissues compared with adjacent normal controls, with the notable exception of PSMD6 which demonstrated reduced mRNA expression (Figure 1A). This evidence concerns the gene PSMD4 and pancreatic neoplasm.