Figure 3. Expression levels of the hepatic metastasis gene signature are enhanced in colorectal cancer with metastatic liver lesion.

(A) Protein expression levels of 4 genes were detected by immunoblotting in nonmetastatic human colorectal cancer samples and human colorectal cancer samples with hepatic metastases. Met, metastatic. (B) Representative images of protein expression levels of 4 genes in nonmetastatic human colorectal cancer samples and human colorectal cancer with hepatic metastases using immunohistochemistry staining. Scale bar: 50 μm.