Related Experiment Video

Updated: Nov 21, 2025

Identification of Sleeping Beauty Transposon Insertions in Solid Tumors using Linker-mediated PCR
10:34

Identification of Sleeping Beauty Transposon Insertions in Solid Tumors using Linker-mediated PCR

Published on: February 1, 2013

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Promoterless Transposon Mutagenesis Drives Solid Cancers via Tumor Suppressor Inactivation

Aziz Aiderus1, Ana M Contreras-Sandoval1, Amanda L Meshey1

  • 1Department of Molecular Oncology, Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA.

Cancers
|January 13, 2021
PubMed

Insights

This study identifies tumor suppressor genes driving cancer without oncogenes using a novel gene trap system. Cumulative inactivation of these genes leads to solid tumor formation and impacts key cancer pathways.

Area of Science:

  • Genomics
  • Cancer Biology
  • Molecular Oncology

Background:

  • Identifying tumor suppressor genes is crucial for understanding cancer development.
  • Existing methods for gene inactivation screens have limitations in scope and application.
  • A gap exists in understanding tumor suppressor gene roles in the absence of oncogenic drivers.

Purpose of the Study:

  • To develop a system for exclusively inactivating tumor suppressor genes.
  • To investigate the role of cumulative tumor suppressor gene inactivation in driving tumorigenesis.
  • To map the landscape of inactivated tumor suppressor genes and their affected pathways.

Main Methods:

  • Utilized a Sleeping Beauty transposon mutagenesis system engineered as a gene trap.
  • Performed whole-body transposon mobilization in wild-type mice.
  • Quantitatively analyzed inactivated tumor suppressor genes in resulting solid cancers.

Main Results:

  • Demonstrated that cumulative gene inactivation can drive solid cancer formation in mice.
  • Generated a quantitative landscape of inactivated tumor suppressor genes.
  • Showed convergence of these inactivated genes on critical cancer-associated pathways.

Conclusions:

  • Cumulative inactivation of tumor suppressor genes is sufficient to drive tumorigenesis.
  • This approach reveals essential tumor suppressor genes and pathways in cancer development.
  • The findings provide insights into cancer genomics independent of oncogenic drivers.
Keywords:
Cul3E3 ubiquitin ligaseRas signalingRasa1Sleeping Beauty transposon mutagenesisTrip12cancer hallmarkstumor suppressor driver genes

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