Breast Cancer and Lymph Node Metastasis
Author Information
Author(s): Weigelt B, Wessels L F A, Bosma A J, Glas A M, Nuyten D S A, He Y D, Dai H, Peterse J L, van't Veer L J
Primary Institution: The Netherlands Cancer Institute
Hypothesis
What are the gene expression patterns that drive breast cancer lymph node metastasis?
Conclusion
The study found that primary breast carcinomas and their lymph node metastases do not differ significantly at the transcriptional level by a common subset of genes.
Supporting Evidence
- The study analyzed gene expression profiles of 15 primary breast tumors and their lymph node metastases.
- No classifier could be developed to predict lymph node metastasis.
- Subtle differences in gene expression were observed in individual pairs of tumors.
Takeaway
This study looked at how breast cancer spreads to lymph nodes and found that the genes in the original tumors are very similar to those in the lymph node tumors.
Methodology
The study compared gene expression profiles of primary breast carcinomas and their matching lymph node metastases using microarrays.
Limitations
The small sample size may limit the generalizability of the findings.
Participant Demographics
Patients included 15 breast cancer patients with lymph node metastases at diagnosis.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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