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Cheung, S.T. et al.

Cheung, Leung, Ip, Chen, Fong, Ng, Fan, So,

Claudin-10 expression level is associated with recurrence of primary hepatocellular carcinoma.

PURPOSE: Hepatocellular carcinoma ( HCC) patients with the same clinicopathologic features can have remarkably different disease outcomes after curative hepatectomy. To address this issue, we evaluated the cDNA microarray gene expression profiles of HCCs and identified claudin-10 expression level was associated with disease recurrence. The aim of the current study is to validate the microarray data by an alternative research method applicable for routine practice. EXPERIMENTAL DESIGN: Quantitative reverse transcription-PCR (RT-PCR) was used to validate the microarray data on claudin-10 expression level. The assay was repeated on a separate HCC sample set to consolidate the prognostic significance of claudin-10. RESULTS: Claudin-10 expression level by quantitative RT-PCR and by microarray measurement showed a high concordance (r = 0.602, P < 0.001). Quantitative RT-PCR was repeated on a separate HCC sample set and the association of claudin-10 expression with recurrence was again confirmed (hazard ratio, 1.2; 95% confidence interval, 1.0-1.4; P = 0.011). By multivariable Cox regression analysis, claudin-10 expression and pathologic tumor-node-metastasis stage were independent factors for prediction of disease recurrence. CONCLUSION: Claudin-10 expression of HCC can be used as a molecular marker for disease recurrence after curative hepatectomy.[1]

References

Claudin-10 expression level is associated with recurrence of primary hepatocellular carcinoma. Cheung, S.T., Leung, K.L., Ip, Y.C., Chen, X., Fong, D.Y., Ng, I.O., Fan, S.T., So, S. Clin. Cancer Res. (2005) [Pubmed]

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