Fig. 1

Representative results of KAI1 and vimentin and E-cadherin protein in NSCLC. a Moderately differentiated NSCLC, H&E staining. b KAI1 protein predominantly localized in the membrane and cytoplasm in well-differentiated squamous carcinoma. c NSCLC cells did not express a detectable level of E-cadherin protein. d Vimentin protein localized in the cytoplasm and membrane in NSCLC cells (a, c, and d are serial sections)