Fig 1: CHST15 intensity in PDA tissue. Representative images of PDA tissue stained with CHST15 antibody (upper panel) and H&E (lower panel) are depicted. The negative control was stained using an identical procedure but with the primary antibody omitted. CHST15 staining status was assessed as (A) control, (B) negative, (C) weak, (D) moderate or (E) strong. H&E staining of the same areas of (F) control, (G) negative, (H) weak, (I) moderate and (J) strong tissue. Scale bars, 200 µm; magnification, ×100. CHST15, carbohydrate sulfotransferase 15; PDA, pancreatic ductal adenocarcinoma; H&E, hematoxylin and eosin.