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- W2079748223 abstract "To investigate cell proliferation, apoptosis, and angiogenesis and their roles in transitional cell carcinoma (TCC) of the renal pelvis and ureter.Formalin-fixed and paraffin-embedded tissue blocks from 42 patients with TCC of the renal pelvis and ureter were studied. Cell proliferation was assessed by Ki-67 immunostaining, and the proliferation index (PI) was expressed as a percentage of Ki-67-positive cells. Apoptosis was detected by terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling (TUNEL), and the apoptotic index (AI) was expressed as a percentage of TUNEL positive cells. Angiogenesis was evaluated by CD31 immunostaining, and microvessel density (MVD) was expressed as the average of the microvessel count.The PI ranged from 5.9% to 48.0% (median 20.03%), AI from 1.0% to 4.2% (median 2.26%), and MVD from 16.0 to 146.0 (median 56.88) in TCC of the renal pelvis and ureter. Statistical analysis revealed close associations of both PI and MVD with tumor stage and of AI with tumor grade. Our study demonstrated a strong relationship between PI and MVD, but did not show associations of AI with PI or MVD in TCC of the renal pelvis and ureter.It is suggested that the high activity of tumor cell proliferation with rich neovascularization may be related to the high malignant potential of the cancer, and evaluation of cell proliferation combined with angiogenesis may be useful in predicting the progression of the renal pelvic and ureteral TCC." @default.
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- W2079748223 date "2001-05-01" @default.
- W2079748223 modified "2023-09-27" @default.
- W2079748223 title "Evaluation of cell proliferation, apoptosis, and angiogenesis in transitional cell carcinoma of the renal pelvis and ureter" @default.
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- W2079748223 doi "https://doi.org/10.1016/s0090-4295(00)01130-4" @default.
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