Histochemical staining of cancerous human lung tissues using WJA.

<p>Paraffin-embedded sections of human lung tissues obtained from lung squamous cell carcinomas were stained with WJA (A,B,E,F) or WFA (C,D,G,H) (brown color) and counterstained with hematoxylin. Representative data (from a 64-year-old male (A,B,C,D) and a 71-year-old male (E,F,G,H)) from 6 WJA-positive cases are shown. Cancerous portions (B,D,F,H) and normal portions (A,C,E,G) of the lung are shown. Scale bar = 200 µm.