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CUTL1: a key mediator of TGFbeta-induced tumor invasion

Patrick Michl1, Julian Downward

  • 1Abteilung Innere Medizin I, Klinikum der Universität Ulm, Ulm, Germany.

Cell Cycle (Georgetown, Tex.)
|December 17, 2005
PubMed

Insights

The TGFbeta pathway has a dual role in cancer. CUTL1, a transcription factor, mediates TGFbeta

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • The TGFbeta pathway exhibits a dual role in human carcinogenesis, inhibiting early-stage tumor growth but promoting progression in advanced cancers.
  • Acquired resistance to TGFbeta's inhibitory effects in advanced cancers can lead to increased proliferation, invasion, and tumor progression.

Purpose of the Study:

  • To investigate the role of the homeobox transcription factor CUTL1 (CCAAT displacement protein, CDP, Cux-1) as a mediator of TGFbeta's tumor-promoting effects in advanced cancers.
  • To explore the relationship between CUTL1 expression, TGFbeta signaling, and cancer progression.

Main Methods:

  • Investigated CUTL1 as a transcriptional target of TGFbeta.
  • Assessed CUTL1's role in mediating TGFbeta-induced cell migration and invasion.
  • Examined CUTL1 expression levels in various epithelial cancers.

Main Results:

  • CUTL1 was identified as a transcriptional target of TGFbeta.
  • CUTL1 mediates TGFbeta-induced cell migration and invasion.
  • CUTL1 is highly expressed in epithelial cancers, correlating negatively with tumor differentiation and patient survival.

Conclusions:

  • CUTL1 is a key mediator of the tumor-promoting effects of TGFbeta in advanced cancers.
  • High CUTL1 expression is associated with poor prognosis in epithelial cancers.

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