Establishment and characterization of a new human ampullary carcinoma cell line, DPC-X1

Figure 6 Hematoxylin and eosin and immunohistochemical staining of DPC-X1 cells, organoid, xenograft tumor, and primary tumor. A-D: Hematoxylin and eosin staining of DPC-X1 cells, organoids, xenograft tumor, and primary tumor; E-H: Strong cytokeratin (CK)7 positive staining of DPC-X1 cells, organoids, xenograft tumor, and primary tumor; I-L: Strong CK20 positive staining of DPC-X1 cells, organoids, xenograft tumor, and primary tumor; M-P: Strong cytokeratin low molecular weight positive staining of DPC-X1 cells, organoids, xenograft tumor, and primary tumor; Q-T: Ki67 staining of DPC-X1 cells, organoids, xenograft tumor, and primary tumor; U-X: Carcinoembryonic antigen focal staining of DPC-X1 cells, organoids, xenograft tumor, and primary tumor. Scale bars: 100 μm. H&E: Hematoxylin and eosin; CK7: Cytokeratin 7; CK20: Cytokeratin 20; CKL: Cytokeratin low molecular weight; CEA: Carcinoembryonic antigen.