Role of CD56-expressing immature biliary epithelial cells in biliary atresia

Figure 4 Co-localization of CD56 with epithelial cell adhesion molecule, bile plugs, and human leucocyte antigen-DR. Co-localization of CD56 (A-D) and EpCAM (E-H) is illustrated in adjacent sections using immunohistochemical staining. From the upper (A, E) to the lower (D, H) slides, the full spectrum of the CD56 staining results is shown. Co-localization of CD56 with bile plugs is shown in (I). Localization of CD56 and HLA-DR positive cells is shown in (J). Black arrows indicate bile plugs. Pink arrows indicate HLA-DR-positive cells. Dark green represents CD56-positive cells. The sections were examined and the scale bar represents 50 μm. Hep: Hepatocytes; PT: Portal tract; EpCAM: Epithelial cell adhesion molecule; HLA-DR: Human leucocyte antigen-DR.