Related Experiment Video

Updated: Jun 7, 2026

An Immunofluorescent Method for Characterization of Barrett’s Esophagus Cells
08:54

An Immunofluorescent Method for Characterization of Barrett’s Esophagus Cells

Published on: July 20, 2014

Interruption of β-catenin suppresses the EGFR pathway by blocking multiple oncogenic targets in human glioma cells

Xiao Yue1, FengMing Lan, WeiDong Yang

  • 1Laboratory of Neuro-Oncology, Tianjin Neurological Institute, PR China.

Brain Research
|October 26, 2010
PubMed

Insights

Targeting beta-catenin (β-catenin) in malignant gliomas inhibits tumor growth and invasion. This study reveals beta-catenin regulates glioma malignancy partly through the EGFR pathway, offering new therapeutic targets.

Area of Science:

  • Neuro-oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Malignant gliomas are aggressive brain tumors with poor outcomes.
  • Overexpression of β-catenin is linked to glioblastoma progression.
  • Previous studies show β-catenin knockdown inhibits glioblastoma growth and invasion.

Purpose of the Study:

  • To elucidate the mechanisms by which β-catenin down-regulation suppresses glioblastoma malignancy.
  • To investigate the interaction between the Wnt/β-catenin pathway and the EGFR pathway in glioma.

Main Methods:

  • Text-mining of MEDLINE abstracts using natural language processing to build the β-catenin biologic association network.
  • In vitro and in vivo studies involving siRNA targeting β-catenin in glioblastoma models.
  • Analysis of gene and protein expression of key pathway components (EGFR, STAT3, AKT1, CyclinD1, MMP2, MMP9).

Main Results:

  • Down-regulation of β-catenin reduced the expression of EGFR, STAT3, and AKT1 mRNA and protein.
  • Phosphorylated Akt levels were decreased following β-catenin knockdown.
  • Expression of downstream EGFR pathway genes, including CyclinD1, MMP2, and MMP9, was also reduced.

Conclusions:

  • The Wnt/β-catenin pathway plays a significant role in regulating glioma cell proliferation and invasion.
  • This regulation is, in part, mediated through interactions with the EGFR pathway.
  • Targeting β-catenin may represent a viable therapeutic strategy for malignant gliomas.

Related Concept Videos

Mitogens and the Cell Cycle02:38

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
Canonical Wnt Signaling Pathway02:54

Canonical Wnt Signaling Pathway

The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which results in tumor...
The Retinoblastoma Gene01:20

The Retinoblastoma Gene

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
Catenins01:23

Catenins

Catenins are characterized by multiple binding domains and dynamic structures that allow them to function as linker proteins in cell junction complexes. All catenins, except α-catenin, contain a characteristic protein sequence called the armadillo repeat and are therefore also called armadillo proteins.
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the adherens...
Inhibition of Cdk Activity02:34

Inhibition of Cdk Activity

The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...