FST expression in lung adenocarcinoma tissues.

(A, B) The poorly differentiated, (C, D) moderately differentiated and (E, F) well differentiated lung adenocarcinoma were stained by anti-FST monoclonal antibody, respectively. The arrows in A–F represented the positive staining area for FST. (G, H) No positive staining area was found with normal mouse IgG instead of anti-FST monoclonal antibody as a procedural background control. The graph represents the integrated optical density (IOD) value obtained using IMAGEJ (http://rsbweb.nih.gov/ij/).