Vitamin D Receptor Deficiency Enhances Wnt/β-Catenin Signaling and Tumor Burden in Colon Cancer
Author Information
Author(s): Larriba María Jesús, Ordóñez-Morán Paloma, Chicote Irene, Martín-Fernández Génesis, Puig Isabel, Muñoz Alberto, Pálmer Héctor G.
Primary Institution: Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Madrid, Spain
Hypothesis
Does vitamin D receptor deficiency affect Wnt/β-catenin signaling and tumor development in colon cancer?
Conclusion
Vitamin D receptor deficiency increases nuclear β-catenin levels and enhances tumor burden in colon cancer without affecting the number of tumors.
Supporting Evidence
- VDR deficiency did not affect the total number of tumors but increased their size in Apcmin/+ mice.
- Colon tumors in VDR-deficient mice had higher levels of nuclear β-catenin.
- VDR knock-down in human colon cancer cells enhanced β-catenin nuclear content and target gene expression.
Takeaway
When the vitamin D receptor is missing, it makes a protein called β-catenin go into the cell's nucleus more, which can lead to bigger tumors in colon cancer.
Methodology
The study used Apcmin/+ and Vdr+/− mice to analyze the effects of VDR deficiency on tumor development and Wnt/β-catenin signaling, both in vivo and in vitro.
Limitations
The study does not address the long-term effects of VDR deficiency on tumor progression or the potential for therapeutic interventions.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website