Figure 1

Immunohistochemical staining on paraffin-embedded lung cancer tissue array sections. Tissue sections of lung cancer were analyzed by IHC staining. The positive staining was shown in brown color. The sections were counterstained with hemotoxylin to show nuclei. Representative images of DAL-1 staining is shown that lower expression of DAL-1 (A) and E-cadherin (B) could been seen in well- differentiated adenocarcinoma, while positive expressions of snail (C) and Vimentin (D) were mainly localized in cytoplasm or nucleus of the serous lung cancer cells. Magnification, ×200.