DACH1 is a novel predictive and prognostic biomarker in hepatocellular carcinoma as a negative regulator of Wnt/β-catenin signaling

Oncotarget. 2015 Apr 20;6(11):8621-34. doi: 10.18632/oncotarget.3281.

Abstract

The cell fate determination factor Dachshund (DACH1) functions as a novel suppressor in the progression of various neoplasms. Previous study has suggested that hypermethylation of promoter region was responsible for the reduction of DACH1 expression in hepatocellular carcinoma (HCC), and associated with the progression of HCC, but the clinical significance and the exact molecular mechanisms of DACH1 in the progression of HCC remain unclear. In this study, we employed public microarray data analysis and tissue microarrays (TMAs) technologies and showed that DACH1 expression was reduced in HCC even at early stage and associated with the tumor progression. Notably, Kaplan-Meier analysis further indicated DACH1 could be an independent prognostic factor for the overall survival of HCC. Further, mechanistic studies revealed that overexpression of DACH1 inhibited the growth and migration of HCC cell line, which were dependent in part on the inactivation of Wnt pathway via phosphorylation of GSK3β to suppress β-catenin. In agreement, the abundance of DACH1 was inversely correlated with several Wnt target genes. Collectively, our study indicated β-catenin is a novel target of DACH1 in HCC.

Keywords: DACH1; TMA; Wnt/β-catenin signaling; hepatocellular carcinoma; prognostic factor.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Carcinoma, Hepatocellular / metabolism*
  • Carcinoma, Hepatocellular / mortality
  • Carcinoma, Hepatocellular / pathology
  • Cell Line, Tumor
  • Cell Movement
  • Cholangiocarcinoma / metabolism
  • Cholangiocarcinoma / pathology
  • Down-Regulation
  • Eye Proteins / analysis
  • Eye Proteins / genetics
  • Eye Proteins / physiology*
  • Female
  • Gene Expression Regulation, Neoplastic
  • Glycogen Synthase Kinase 3 / metabolism
  • Glycogen Synthase Kinase 3 beta
  • Humans
  • Kaplan-Meier Estimate
  • Liver Diseases / metabolism
  • Liver Neoplasms / metabolism*
  • Liver Neoplasms / mortality
  • Liver Neoplasms / pathology
  • Male
  • Middle Aged
  • Neoplasm Proteins / analysis
  • Neoplasm Proteins / antagonists & inhibitors
  • Neoplasm Proteins / genetics
  • Neoplasm Proteins / physiology*
  • Phosphorylation
  • Prognosis
  • Protein Processing, Post-Translational
  • Recombinant Fusion Proteins / metabolism
  • Tissue Array Analysis
  • Transcription Factors / analysis
  • Transcription Factors / genetics
  • Transcription Factors / physiology*
  • Tumor Stem Cell Assay
  • Wnt Signaling Pathway / physiology*
  • beta Catenin / antagonists & inhibitors

Substances

  • CTNNB1 protein, human
  • DACH1 protein, human
  • Eye Proteins
  • Neoplasm Proteins
  • Recombinant Fusion Proteins
  • Transcription Factors
  • beta Catenin
  • GSK3B protein, human
  • Glycogen Synthase Kinase 3 beta
  • Glycogen Synthase Kinase 3