Correlation of epithelial-mesenchymal transition and CK19 expression in hepatocellular carcinoma.
Abstract
ABSTRACT
Objective: Hepatocellular carcinomas are one of the leading cause of death throughout the world with a high recurrence rate and metastatic potential. The relationship between the prognosis and immunoexpression of cytokeratin 19 has been shown in hepatocellular carcinomas. Recently, EMT has been shown to be an important mechanism contributing to cancer invasion and metastasis in epithelial-derived cancers , including Hepatocellular carcinoma. We aimed to investigate the relationship between the CK19 positivity with a poor prognosis in HCC and E-cadherin and vimentin as the EMT indicator proteins.
Materials and Methods: The cytokeratin-19, vimentin and E-cadherin expression of 41 HCC tissue samples was examined by immunohistochemical staining.
Results:
The E-cadherin expression was negatively and vimentin expression positively corralated with CK19 positivity (p<0,05).
Conclusion : Previous studies implicated that both the CK19 positive HCCs and the HCCs having reduced expression of E-cad and gain vimentin expression have poor prognosis with increased risk of recurrence and metastasis. In our study the correlation between the CK19 positivity and EMT may suggest that those tumors are originated form progenitor cells. The tumors originated from progenitor cells may have higher EMT, this may be related with the carcinogenesis of this HCC subtype.
Keywords
References
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