Related Experiment Video

Updated: Sep 15, 2025

Monitoring eIF4F Assembly by Measuring eIF4E-eIF4G Interaction in Live Cells
08:47

Monitoring eIF4F Assembly by Measuring eIF4E-eIF4G Interaction in Live Cells

Published on: May 1, 2020

3.2K

The EIF4EBP1 gene encoding 4EBP1 is transcriptionally upregulated by MYC and linked to shorter survival in

Laura Hruby1, Katerina Schaal2, Alberto Delaidelli3,4,5

  • 1Institute of Neuropathology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University, Düsseldorf, Germany.

Cell Death Discovery
|July 16, 2025
PubMed

Insights

MYC drives aggressive medulloblastoma (MB) by increasing eukaryotic translation initiation factor 4E-binding protein 1 (EIF4EBP1). High EIF4EBP1 levels correlate with poor prognosis in MB patients, indicating its role in tumor aggressiveness.

Area of Science:

  • Pediatric neuro-oncology
  • Cancer molecular biology
  • Translational research

Background:

  • Medulloblastoma (MB) is the most common malignant pediatric brain tumor.
  • Group 3 MB has the poorest prognosis, with poorly understood drivers of aggressiveness.
  • Eukaryotic translation initiation factor 4E-binding protein 1 (EIF4EBP1) is implicated but its role is unclear.

Purpose of the Study:

  • To investigate the prognostic role of EIF4EBP1 in MB.
  • To elucidate the mechanisms driving EIF4EBP1 overexpression in Group 3 MB.
  • To assess the functional impact of EIF4EBP1 on MB cell tumorigenicity.

Main Methods:

  • Analysis of publicly available EIF4EBP1 mRNA expression datasets.
  • Correlation analysis with MYC expression and patient survival data.
  • Immunohistochemistry for 4EBP1 protein.
  • Functional assays for MB cell colony formation and promoter activity.

Main Results:

  • EIF4EBP1 mRNA is upregulated in MB and higher in Group 3 vs. Group 4.
  • High EIF4EBP1 expression correlates with reduced overall and event-free survival.
  • MYC directly regulates EIF4EBP1 transcription, explaining overexpression in Group 3.
  • 4EBP1 supports in vitro MB cell colony formation.

Conclusions:

  • Transcriptional upregulation of EIF4EBP1 by MYC contributes to MB aggressiveness.
  • EIF4EBP1 is a potential therapeutic target for high-risk medulloblastoma.
  • High EIF4EBP1 expression is a marker of poor prognosis in MB patients.

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