fig1
Figure 1. Immunofluorescence staining for PanCK, KLF4, TWIST, and β-catenin in human colonic tissues. Representative images of normal adjacent mucosa and tumor sections from two different human specimens: (A) TWIST (SB396N and SB396T); and (B) β-catenin (SB474N and SB474T). White arrowheads indicate KLF4 stain in stromal tissue. White boxes mark insets. Scale bar: 50 μm
