Expression and prognostic significance of osteopontin and caspase-3 in hepatocellular carcinoma patients after curative resection

Cancer Sci. 2010 May;101(5):1314-9. doi: 10.1111/j.1349-7006.2010.01524.x. Epub 2010 Feb 5.

Abstract

Osteopontin (OPN) plays an important role in the development, invasion, and metastasis of malignancies. Recently, several studies have reported that OPN enhances chemoresistance in small-cell lung cancer and breast cancer by blocking caspase-9 and caspase-3-dependent cell apoptosis. The aim of this study was to assess the value of OPN and caspase-3 for predicting tumor recurrence after curative resection in hepatocellular carcinoma (HCC) patients. We found that OPN expression increased concordantly with increasing metastatic potential in human HCC cell lines, whereas caspase-3 expression declined. In a tumor tissue microarray immunohistochemical analysis, we found that patients with higher levels of OPN and lower levels of caspase-3 had a significantly poorer prognosis than patients with lower OPN and higher caspase-3 levels. The combination of OPN and caspase-3 expression thus served as an effective prognosticator. These findings suggest that OPN alone or in combination with caspase-3 may act as an independent indicator for HCC patients after curative resection.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Carcinoma, Hepatocellular / chemistry
  • Carcinoma, Hepatocellular / mortality*
  • Carcinoma, Hepatocellular / surgery
  • Caspase 3 / analysis*
  • Cell Line, Tumor
  • Female
  • Humans
  • Immunohistochemistry
  • Liver Neoplasms / chemistry
  • Liver Neoplasms / mortality*
  • Liver Neoplasms / surgery
  • Male
  • Middle Aged
  • Osteopontin / analysis*
  • Prognosis
  • Tissue Array Analysis

Substances

  • Osteopontin
  • Caspase 3