Nm23-H1 protein, DNA-ploidy and S-phase fraction in relation to overall survival and disease free survival in transitional cell carcinoma of the bladder.
OBJECTIVE
To explain the overall survival (OS) and disease free survival (DFS) in relation to nm23-H1 protein, DNA-ploidy and S-phase fraction (SPF) in transitional cell carcinoma of the bladder.


METHODS
Ninety-four samples were obtained from patients with transitional cell carcinoma of the bladder examined between 1994 and 1996. The patients were underwent cistectomy or surgical biopsy and the material was histologically evaluated according to World Health Organization classification. Nm23-H1 protein expression in immunohistological staining and DNA ploidy, S-phase fraction by flow cytometric were performed.


RESULTS
The correlation between OS and staging, grading, DNA-ploidy and S-phase was significant; whereas the overall survival and nm23-H1 protein, was not significant. The relationship between DFS and stage, DNA-ploidy and S-phase had a significant value. The correlation between DFS and age, sex, grading and nm23-H1 protein was not significant. There was no significant difference in age, sex, stage, grading, DNA-ploidy and SPF distribution between patients with nm23-H1 positive bladder cancer and those with nm23-H1 negative tumours.


CONCLUSIONS
In our study, multivariate analysis showed that stage, ploidy and SPF were the strongest prognostic factors in predicting disease-free survival and prolonged survival, while nm23-H1 expression was not related to disease progression and/or prolonged survival. This expression, therefore, does not appear to be an independent prognostic factor in bladder cancer, although a still larger number of patients and a longer follow-up period are now needed for a definitive assessment of the prognostic significance of nm23-H1 expression.
Alderisio
M
M
Department of Experimental Medicine and Pathology, University La Sapienza, Roma, Italy.
Cenci
M
M
Valli
C
C
Russo
A
A
Bazan
V
V
Dardanoni
G
G
Cucciarre
S
S
Carreca
I
I
Macaluso
M P
MP
Tomasino
R M
RM
Vecchione
A
A
D000328:Adult; D000367:Age Factors; D000368:Aged; D000782:Aneuploidy; D014408:Biomarkers, Tumor / Q000032:analysis*; D001706:Biopsy; D002295:Carcinoma, Transitional Cell / Q000235:genetics / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D015653:Cystectomy; D004171:Diploidy; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D020559:Monomeric GTP-Binding Proteins; D054778:NM23 Nucleoside Diphosphate Kinases; D009367:Neoplasm Staging; D009701:Nucleoside-Diphosphate Kinase; D011003:Ploidies; D011123:Polyploidy; D016196:S Phase; D012737:Sex Factors; D015996:Survival Rate; D014157:Transcription Factors / Q000032:analysis*; D001749:Urinary Bladder Neoplasms / Q000235:genetics / Q000401:mortality / Q000473:pathology* / Q000601:surgery
D014408:Biomarkers, Tumor; D054778:NM23 Nucleoside Diphosphate Kinases; D014157:Transcription Factors; C517938:NME1 protein, human; D009701:Nucleoside-Diphosphate Kinase; D020559:Monomeric GTP-Binding Proteins