Cell Proliferation in Bladder Cancer and Its Prognostic Value
Author Information
Author(s): P.K. Lipponen, M.J. Eskelinen
Primary Institution: University of Kuopio, Finland
Hypothesis
The study aims to assess the fraction of proliferating cells in transitional cell bladder cancer (TCC) using PCNA/cyclin immunostaining and correlate the findings to clinical outcomes.
Conclusion
The growth fraction determined by PCNA/cyclin immunostaining is a significant prognostic variable in transitional cell bladder cancer.
Supporting Evidence
- The fraction of PCNA/cyclin positive nuclei was related to T-category, papillary status, WHO grade, DNA ploidy, S phase fraction, and M/V index.
- TCCs with pelvic lymph node metastasis had a significantly higher growth fraction than those confined to the bladder wall.
- The fraction of PCNA/cyclin positive nuclei predicted progression in T-, N-, and M-categories.
- In survival analysis, the fraction of PCNA/cyclin positive nuclei predicted survival in the entire cohort and in Ta-TI tumours.
Takeaway
This study looked at how fast bladder cancer cells grow and found that faster-growing cells are linked to worse outcomes for patients.
Methodology
The study analyzed 178 patients with newly diagnosed primary TCC treated at Kuopio University Hospital, using PCNA/cyclin immunostaining to assess cell proliferation and correlating it with clinical factors over a mean follow-up of 10 years.
Limitations
The study was limited to a single institution and may not be generalizable to other populations.
Participant Demographics
Patients aged 26-84 years, with a female/male ratio of 36/142.
Statistical Information
P-Value
P<0.001
Statistical Significance
p<0.001
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