Figure 3. Representative immunohistochemistry images of distinct CBXs family members in HCC tissues and normal liver tissues (Human Protein Atlas). CBX2/5/7/8 proteins were not expressed in normal liver tissues, whereas their low and medium expressions were observed in HCC tissues (B, E, G-H). Low protein expressions of CBX1/3/4 were found in normal liver tissues, while their medium and high protein expressions were observed in HCC tissues (A, C-D). Low protein expression of CBX6 was observed both at normal liver tissues and HCC tissues (F).