PDRG1 and cancer: However, only a few (urothelial, colorectal, liver, stomach and pancreatic) cancers showed weak to moderate cytoplasmic PDRG1 protein positivity, and remaining malignant tissues were negative in the HPA project (https://www.proteinatlas.org/ENSG00000088356-PDRG1/pathology, accessed on 1 October 2022).