Additional file 1: of Weak HIF-1alpha expression indicates poor prognosis in resectable pancreatic ductal adenocarcinoma

Figure S1. Positive and negative controls for HIF-1alpha staining. The HIF-1alpha staining pattern in ischemic colon sample is nuclear and shows an increase in intensity towards the surface in the mucosal epithelium (a.). PDAC sample with high nuclear HIF-1alpha intensity stained with CD3 antibody for negative control (b.). CD3 staining is located in the lymphocytes but not in the cancer cells. (TIF 5034 kb