Wnt/β-Catenin Signaling Pathway Is a Direct Enhancer of Thyroid Transcription Factor-1 in Human Papillary Thyroid Carcinoma Cells
2011

Wnt/β-Catenin Pathway Enhances TTF-1 in Thyroid Cancer Cells

publication Evidence: moderate

Author Information

Author(s): Gilbert-Sirieix Marie, Makoukji Joelle, Kimura Shioko, Talbot Monique, Caillou Bernard, Massaad Charbel, Massaad-Massade Liliane

Primary Institution: UMR 8203 CNRS/Institut Gustave Roussy, Villejuif, France

Hypothesis

Does the Wnt/β-catenin pathway regulate TTF-1 expression in papillary thyroid carcinoma cells?

Conclusion

The Wnt/β-catenin pathway directly enhances TTF-1 expression in human papillary thyroid carcinoma cells.

Supporting Evidence

  • TTF-1 and Wnt pathway components are co-expressed in TPC-1 cells and human PTC tumors.
  • Knocking down Wnt components reduced TTF-1 expression.
  • Activating Wnt signaling with lithium chloride increased TTF-1 expression.

Takeaway

This study found that a specific signaling pathway helps control a protein important for thyroid cancer, which could help in understanding and treating the disease.

Methodology

The study used real-time PCR, immunofluorescence, Western blot, and ChIP analysis to investigate the regulation of TTF-1 by the Wnt/β-catenin pathway.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0022280

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