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AIM: To investigate the possible role of c-erbB-2 and glutathione S-transferase (GST-Pi) in primary hepatocellular carcinogenesis and the relationship between liver hype-rplastic nodule (LHN), liver cirrhosis (LC), and hepatocellular carcinoma (HCC). METHODS: The expression of c-erbB-2 and GST-Pi was detected immunohistochemically in 41 tissue specimens of HCC and 77 specimens of its adjacent tissue. RESULTS: The positive expression of c-erbB-2 in LHN (28.6%) was significantly higher than that in LC (0%) (P = 0.032<0.05), but no significant difference was seen between HCC and LHN or LC (P>0.05,X2=0.002, 3.447). The positive expression of GST-Pi in HCC (89.6%) or LHN (71.1%) was significantly higher than that in LC (22.9%, P<0.001, X2=49.91, 16.96). There was a significant difference between HCC and LHN (P<0.05, X2=6.353). CONCLUSION: The c-erbB-2 expression is an early event in the pathogenesis of HCC. GST-Pi may be a marker enzyme for immunohistochemical detection of human HCC and its preneoplastic lesions. LHN seems to be a preneoplastic lesion related to hepatocarcinogenesis.
AIM: To investigate the possible role of c-erbB-2 and glutathione S-transferase (GST-Pi) in primary hepatocellular carcinogenesis and the relationship between liver hype-rplastic nodule (LHN), liver cirrhosis (LC), and hepatocellular carcinoma METHODS: The expression of c-erbB-2 and GST-Pi was detected immunohistochemically in 41 tissue specimens of its adjacent tissue. RESULTS: The positive expression of c-erbB-2 in LHN (28.6% (P = 0.032 <0.05), but no significant difference was seen between HCC and LHN or LC (P> 0.05, X2 = 0.002, 3.447). The positive expression of GST- There was a significant difference between HCC and LHN (P <0.05, X2 (49.91, = 6.353). CONCLUSION: The c-erbB-2 expression is an early event in the pathogenesis of HCC. GST-Pi may be a marker enzyme for immunohistochemical detection of human HCC and its preneoplastic lesions. LHN seems to be a preneoplastic lesion related to hepatocarcinogenesis.