SIPA1 Gene Variants Linked to Breast Cancer Metastasis
Author Information
Author(s): Nigel PS Crawford, Argyrios Ziogas, David J Peel, James Hess, Hoda Anton-Culver, Kent W Hunter
Primary Institution: National Cancer Institute/National Institutes of Health
Hypothesis
Polymorphisms or haplotypes within key regulatory or coding elements of the human gene encoding SIPA1 are positively correlated with the presence of metastases in breast cancer patients.
Conclusion
SIPA1 germline polymorphisms are associated with aggressive disease behavior in breast cancer patients.
Supporting Evidence
- The variant 2760G>A and the -313G>A allele were associated with lymph node involvement.
- The variant 545C>T was associated with estrogen receptor negative tumors.
- Haplotype 3 was associated with positive lymph node involvement.
- Haplotype 4 was associated with estrogen receptor and progesterone receptor negative status.
Takeaway
Some changes in a gene called SIPA1 can make breast cancer more aggressive, which means it spreads more easily.
Methodology
The study involved genotyping three SNPs in the SIPA1 gene among 300 non-Hispanic Caucasian breast cancer patients.
Potential Biases
Potential biases may arise from the selection of participants and the reliance on self-reported data for family history and risk factors.
Limitations
The study was limited to a specific demographic (non-Hispanic Caucasian women), which may affect the generalizability of the findings.
Participant Demographics
All participants were non-Hispanic Caucasian women with breast cancer.
Statistical Information
P-Value
0.0012, 0.0062, 0.0083, 0.0051, 0.0053, 0.0199
Confidence Interval
1.14–4.06, 1.52–5.48, 1.05–3.30, 1.27–3.81, 1.36–5.94, 1.13–4.12
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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