miR-203 expression predicts outcome after liver transplantation for hepatocellular carcinoma in cirrhotic liver

Med Oncol. 2012 Sep;29(3):1859-65. doi: 10.1007/s12032-011-0031-9. Epub 2011 Jul 24.

Abstract

Many recent studies have shown the utility of microRNAs (miRs) as cancer-related biomarkers. The aim of the present study was to evaluate the correlation between miR-203 expression and prognosis of patients with hepatocellular carcinoma (HCC) and cirrhosis after liver transplantation (LT). Sixty-six HCC samples from patients who had undergone LT were examined for miR-203 expression using quantitative reverse transcription-polymerase chain reaction. The data were correlated with clinicopathological parameters and prognosis. Patient survival was analyzed by the Kaplan-Meier method and log-rank test. Cox regression was used for multivariate analysis of prognostic factors. We found that miR-203 expression was low in tumor tissues of patients (n = 16) with post-LT HCC recurrence in comparison with those in patients with non-recurrence (n = 50) (P = 0.003). Patients with higher miR-203 expression had significantly better recurrence-free survival (RFS) and overall survival (OS) (P = 0.016 for RFS; P = 0.014 for OS). Multivariate analysis revealed that high-miR-203 expression was an independent predictor of good prognosis (HR 0.202, P = 0.006 for RFS; HR 0.332, P = 0.013 for OS). Our results suggest that miR-203 could be a novel prognostic marker in HCC patients who have undergone LT and might also be a potential therapeutic target.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biomarkers, Tumor / analysis
  • Biomarkers, Tumor / genetics
  • Carcinoma, Hepatocellular / genetics
  • Carcinoma, Hepatocellular / pathology
  • Carcinoma, Hepatocellular / surgery*
  • Female
  • Humans
  • Kaplan-Meier Estimate
  • Liver Cirrhosis / genetics
  • Liver Cirrhosis / pathology
  • Liver Cirrhosis / surgery*
  • Liver Transplantation / adverse effects*
  • Liver Transplantation / mortality
  • Male
  • MicroRNAs / biosynthesis
  • MicroRNAs / genetics*
  • Middle Aged
  • Neoplasm Recurrence, Local / genetics*
  • Neoplasm Recurrence, Local / pathology
  • Neoplasm Staging
  • Prognosis
  • Proportional Hazards Models
  • Reverse Transcriptase Polymerase Chain Reaction

Substances

  • Biomarkers, Tumor
  • MIRN203 microRNA, human
  • MicroRNAs