Abstract
Background
This study was undertaken to determine the absolute and relative value of angiogenesis, proliferating cell nuclear antigen (PCNA) and conventional prognostic factors in predicting relapse-free survival (RFS) and overall survival (OS) rates associated with long-term survival in Japanese patients with node-negative breast cancer.
Patients and Methods
Two hundred patients with histological node-negative breast cancer were studied. We investigated nine clinicopathological factors, including angiogenesis, PCNA using permanent-section immunohistochemistry, clinical tumor size, histological grade (HG), tumor necrosis, lymphatic vessel invasion (LVI), histological extension, histological classification, and infiltrating growth (INF), followed for a median of 10 years (range, 1 to 20).
Results
Twenty-one patients (10.5%) had recurrence and 15 patients (7.5%) died of breast cancer. Univariate analysis showed that PCNA, clinical tumor size, HG, angiogenesis, and LVI were significantly predictive of 20-year RFS or OS. Tumor necrosis was significantly predictive of OS, not of RFS. Multivariate analysis showed that clinical tumor size (P=0.0003), angiogenesis (P=0.0003), PCNA (P= 0.0064), and HG (P=0.0401) were significant independent prognostic factors for RFS. PCNA (P< 0.0001) and clinical tumor size (P=0.0112) were significant independent prognostic factors for OS, while angiogenesis was a borderline significant factor.
Conclusion
PCNA and angiogenesis were important new prognostic factors in node-negative breast cancer patients.
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Abbreviations
- PCNA:
-
Proliferating cell nuclear antigen
- RFS:
-
Relapse-free survival
- OS:
-
Overall survival
- HG:
-
Histological grade
- LVI:
-
Lymphatic vessel invasion
- INF:
-
Infiltrating growth
- AMC:
-
Average microvessel count
- RR:
-
Relative risk
- HMC:
-
Highest microvessel count
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Kato, T., Kimura, T., Takami, N. et al. New prognostic factors associated with long-term survival in node-negative breast cancer patients. Breast Cancer 6, 370–377 (1999). https://doi.org/10.1007/BF02966456
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DOI: https://doi.org/10.1007/BF02966456