uPA–PAI-1 Complexes and Breast Cancer
Author Information
Author(s): Schneider J, Pollán M, Tejerina A, Sánchez J, Lucas A R
Primary Institution: Fundación Tejerina-Centro de Patología de la Mama, Madrid, Spain
Hypothesis
Does the presence of uPA–PAI-1 complexes in early breast cancer help predict axillary nodal metastasis?
Conclusion
The presence of uPA–PAI-1 complexes inside tumor cells in early breast cancers expressing progesterone receptors is associated with a significantly higher incidence of axillary metastasis.
Supporting Evidence
- uPA and PAI-1 are important prognostic factors in breast cancer.
- Patients with uPA–PAI-1 complexes had a higher incidence of axillary metastasis.
- Statistical analysis showed significant associations with progesterone receptor positivity.
Takeaway
This study found that certain proteins in breast cancer cells can help doctors predict if the cancer has spread to nearby lymph nodes.
Methodology
The study analyzed 212 patients with unifocal invasive tumors of 2 cm or less, assessing various biological features and their association with axillary node invasion.
Potential Biases
Potential biases may arise from the selection of patients and the retrospective nature of the analysis.
Limitations
The study is limited to early-stage breast cancers and may not apply to all breast cancer stages.
Participant Demographics
Patients were primarily women with early-stage breast cancer, mostly infiltrating ductal carcinomas.
Statistical Information
P-Value
0.032
Confidence Interval
1.95–97.4
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website