Flow Cytometric Analysis of S-Phase Fraction in Breast Carcinomas
Author Information
Author(s): S. Wingren, O. Stal, B. Nordenskjold
Primary Institution: Linkoping University
Hypothesis
Does the S-phase fraction (SPF) of epithelial cell populations predict distant recurrence in stage II breast carcinomas more effectively than SPF from single-parameter analysis?
Conclusion
The use of flow cytometric selection of epithelial breast carcinoma cells enhances the predictability value of S-phase fraction.
Supporting Evidence
- Aneuploidy and high SPF are generally associated with early distant recurrence and decreased survival time.
- SPF of the epithelial cell population predicted recurrence more effectively than SPF from single-parameter analysis.
- The cytokeratin method yielded additional prognostic information to the single-parameter analysis.
Takeaway
This study looked at how well a special test can predict if breast cancer will come back. It found that testing certain cancer cells gives better predictions.
Methodology
The study involved flow cytometric analysis of S-phase fraction in 201 stage II breast carcinomas, comparing methods with and without selection of epithelial cells.
Potential Biases
Residual non-neoplastic epithelium may dilute the tumour population, and some cytokeratin antigenicity may be lost during preparation.
Limitations
The study's sample size was too small for subgroup analysis, and there were potential pitfalls in selecting epithelial cells.
Participant Demographics
Median age of participants was 57 years, with a median follow-up time of 59 months.
Statistical Information
P-Value
0.0055
Statistical Significance
p<0.05
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