Wnt Signalling and DKK3 in Breast Cancer
Author Information
Author(s): Veeck Jürgen, Bektas Nuran, Hartmann Arndt, Kristiansen Glen, Heindrichs Uwe, Knüchel Ruth, Dahl Edgar
Primary Institution: University Hospital of the RWTH, Aachen
Hypothesis
Is DKK3 expression epigenetically silenced during breast carcinogenesis?
Conclusion
DKK3 expression is frequently downregulated in human breast cancer due to aberrant methylation of the DKK3 promoter.
Supporting Evidence
- DKK3 mRNA was downregulated in 71% of breast cancer cell lines.
- 61% of breast carcinomas revealed a methylated DKK3 promoter.
- Loss of DKK3 expression was significantly associated with DKK3 promoter methylation.
Takeaway
In breast cancer, a gene called DKK3 that helps control cell growth is often turned off because of changes in its DNA. This could make the cancer grow faster.
Methodology
DKK3 mRNA expression and promoter methylation were analyzed using RT-PCR and methylation-specific PCR in breast cell lines, normal breast tissues, and primary breast carcinomas.
Limitations
The study did not find associations between DKK3 methylation and several clinicopathological parameters.
Participant Demographics
Female patients with unilateral, invasive breast cancer, median age 57 years.
Statistical Information
P-Value
p = 0.001
Statistical Significance
p < 0.001
Digital Object Identifier (DOI)
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