IHC image of CK8&CK18 staining in a formalin fixed, paraffin embedded human lung cancer tissue (left) and vermiform appendix tissue (right).. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer for 20 minutes. The tissue section was then incubated with rabbit anti-CK8&CK18 (C650051) antibody overnight at 4°C.HRP-conjugated goat anti-rabbit IgG was used as secondary antibody. (Original magnification: 100X).