Activation of canonical WNT/β-catenin signaling enhances in vitro motility of glioblastoma cells by activation of ZEB1 and other activators of epithelial-to-mesenchymal transition

Cancer Lett. 2012 Dec 1;325(1):42-53. doi: 10.1016/j.canlet.2012.05.024. Epub 2012 May 28.

Abstract

Here we show that activation of the canonical WNT/β-catenin pathway increases the expression of stem cell genes and promotes the migratory and invasive capacity of glioblastoma. Modulation of WNT signaling alters the expression of epithelial-to-mesenchymal transition activators, suggesting a role of this process in the regulation of glioma motility. Using immunohistochemistry in patient-derived glioblastoma samples we showed higher numbers of cells with intranuclear signal for β-catenin in the infiltrating edge of tumor compared to central tumor parenchyma. These findings suggest that canonical WNT/β-catenin pathway is a critical regulator of GBM invasion and may represent a potential therapeutic target.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • AC133 Antigen
  • Antigens, CD / genetics
  • Antigens, CD / metabolism
  • Cell Differentiation / genetics
  • Cell Growth Processes / genetics
  • Cell Line, Tumor
  • Cell Movement / genetics
  • Cell Movement / physiology*
  • Epithelial-Mesenchymal Transition*
  • Glioblastoma / genetics
  • Glioblastoma / metabolism*
  • Glioblastoma / pathology*
  • Glycoproteins / genetics
  • Glycoproteins / metabolism
  • HEK293 Cells
  • Homeodomain Proteins / genetics
  • Homeodomain Proteins / metabolism*
  • Humans
  • Immunohistochemistry
  • Intercellular Signaling Peptides and Proteins / genetics
  • Intercellular Signaling Peptides and Proteins / metabolism
  • Neoplasm Invasiveness
  • Neoplastic Stem Cells / metabolism
  • Neoplastic Stem Cells / pathology
  • Peptides / genetics
  • Peptides / metabolism
  • Signal Transduction
  • Transcription Factors / genetics
  • Transcription Factors / metabolism*
  • Wnt Proteins / genetics
  • Wnt Proteins / metabolism
  • Wnt Signaling Pathway*
  • Zinc Finger E-box-Binding Homeobox 1
  • beta Catenin / genetics
  • beta Catenin / metabolism

Substances

  • AC133 Antigen
  • Antigens, CD
  • DKK1 protein, human
  • Glycoproteins
  • Homeodomain Proteins
  • Intercellular Signaling Peptides and Proteins
  • Peptides
  • Transcription Factors
  • Wnt Proteins
  • ZEB1 protein, human
  • Zinc Finger E-box-Binding Homeobox 1
  • beta Catenin