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Related Experiment Videos

Prognostic markers in node-negative breast cancer: a prospective study.

T E Kute1, G B Russell, N Zbieranski

  • 1Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157-1072, USA. tkute@wfubmc.edu

Cytometry. Part B, Clinical Cytometry
|April 27, 2004
PubMed
Summary

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Identifying the best predictors for node-negative breast cancer survival is crucial. S-phase activity emerged as the strongest independent marker for predicting disease-free and overall survival in patients.

Area of Science:

  • Oncology
  • Biochemistry

Background:

  • Determining the need for adjuvant chemotherapy in node-negative (N-) breast cancer remains challenging.
  • Accurate patient selection is vital to avoid unnecessary treatments and improve outcomes.

Purpose of the Study:

  • To identify factors that best predict disease-free survival (DFS) and cancer-specific overall survival (OS) in N- breast cancer.
  • To guide the selection of appropriate patients for adjuvant chemotherapy.

Main Methods:

  • Prospective study of 556 N- breast cancer patients diagnosed between 1991 and 1996.
  • Analysis of 11 parameters including hormone receptor status, ploidy, cell cycle phases (G0/G1, S-phase), cathepsin D, tumor size, stage, and histologic grade.
  • Univariate and multivariate analyses to assess predictive value for DFS and OS.

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Main Results:

  • S-phase activity, ploidy status, G1 phase activity, and age were significant univariate predictors of DFS.
  • S-phase activity was the strongest independent predictor for both DFS and OS in multivariate analysis.
  • When S-phase was excluded, age and ploidy predicted DFS, while progesterone receptor (PR), size, and cathepsin D predicted OS.

Conclusions:

  • Biochemical and clinical parameters can predict prognosis in N- breast cancer.
  • No single marker adequately predicted individual patient prognosis; S-phase activity was the most significant independent marker.
  • Subset analysis improved prognostication but had limitations; these findings represent a definitive study from 1991-2002.