LGR5 Is a Negative Regulator of Tumourigenicity, Antagonizes Wnt Signalling and Regulates Cell Adhesion in Colorectal Cancer Cell Lines
2011

LGR5's Role in Colorectal Cancer

publication 10 minutes Evidence: high

Author Information

Author(s): Francesca Walker, Hui-Hua Zhang, Annalisa Odorizzi, Antony W. Burgess, Pierre-Antoine Defossez

Primary Institution: Epithelial Biochemistry Laboratory, Ludwig Institute for Cancer Research, Parkville, Victoria, Australia

Hypothesis

LGR5 modulates Wnt responses and epithelial-mesenchymal transition (EMT) in colorectal cancer cell lines.

Conclusion

LGR5 acts as a negative regulator of tumorigenicity and enhances cell adhesion in colorectal cancer cells.

Supporting Evidence

  • Ablation of LGR5 increases invasion and tumorigenicity in colorectal cancer cell lines.
  • Overexpression of LGR5 reduces clonogenicity and enhances cell adhesion.
  • LGR5 knockdown leads to increased expression of EMT-related genes.

Takeaway

LGR5 is a protein that helps keep cancer cells in their place, and when it's not there, the cancer cells can spread more easily.

Methodology

The study used RNA interference and overexpression techniques in colorectal cancer cell lines to assess the effects of LGR5 modulation on tumorigenicity and cell adhesion.

Limitations

The study primarily used cell lines, which may not fully replicate the complexity of in vivo tumor environments.

Statistical Information

P-Value

p<0.0001

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.1371/journal.pone.0022733

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