title: Image cytometric DNA analysis and proliferating cell nuclear antigen (PCNA) expression in transitional cell carcinoma of the bladder.
abstract: The proliferation rate as determined by Proliferating Cell Nuclear Antigen (PCNA) immunostaining and the DNA ploidy status as measured by static cytometry were studied in 70 transitional cell carcinomas of the bladder (TCCB) in relation to grade, stage, and recurrence. The follow-up period was 2 years. A significant difference was observed in PCNA expression among grades I, II, and III (P < 0.02), between superficial (pTa-pT1) and invasive (pT2-pT4) tumors (p < 0. 04), between recurring and non-recurring tumors (p < 0.001), and between tumors of the same grade with and without recurrence (p < 0. 05). A significant difference was also found in the ploidy pattern among grades I, II, and III (p = 0.002), and between superficial and invasive (p = 0.02) and recurring and non-recurring tumors (p < 0. 01). Finally, the recurrence status seems to be strongly influenced by the proliferation rate and ploidy of TCCB (p < 0.001). Our results suggest that the above-studied parameters may offer useful information on the biological behavior of TCCB.
authors.affiliation: Department of Pathology, Medical University of Athens, Greece.
authors.forename: A G
authors.initials: AG
authors.lastname: Ioakim-Liossi
authors.forename: P J
authors.initials: PJ
authors.lastname: Karakitsos
authors.forename: D
authors.initials: D
authors.lastname: Pantazopoulos
authors.forename: K G
authors.initials: KG
authors.lastname: Aroni
authors.forename: P
authors.initials: P
authors.lastname: Athanossiadou
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002295:Carcinoma, Transitional Cell / Q000175:diagnosis / Q000378:metabolism* / Q000473:pathology; D004247:DNA / Q000032:analysis*; D005260:Female; D006801:Humans; D019044:Image Cytometry / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D011003:Ploidies; D011379:Prognosis; D018809:Proliferating Cell Nuclear Antigen / Q000378:metabolism*; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis / Q000378:metabolism* / Q000473:pathology
chemical_list: D018809:Proliferating Cell Nuclear Antigen; D004247:DNA