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![Loss of the Krüppel-like factor 4 tumor suppressor is associated with epithelial-mesenchymal transition in colorectal cancer](https://image.oaes.cc/1412ff17-42d0-4fdb-bfa9-c1fccd7fd390/3267.fig.1.jpg)
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