GPN1 protein levels were significantly different across several cancers, including glioblastoma (GBM), head and neck squamous cell carcinoma (HNSC), kidney renal clear cell carcinoma (KIRC), HCC, ovarian serous cystadenocarcinoma (OV), and pancreatic adenocarcinoma (PAAD). This evidence concerns the gene GPN1 and pancreatic adenocarcinoma.