Korean J Urol.  2008 Apr;49(4):300-306.

Analysis of the Expression of Peroxiredoxin I in Human Bladder Cancer

• Kim ET
• Sagong H
• Kim WJ

Abstract

PURPOSE: Peroxiredoxins(PRDXs) are antioxidant enzymes that play an important role on cell differentiation, proliferation and apoptosis. In this study, we investigated if the expression levels of PRDX I were related to bladder cancer.
MATERIALS AND METHODS
The mRNA level of PRDX I was examined via real time polymerase chain reaction(PCR) in 186 cancer specimens from patients with primary bladder cancer, 73 corresponding samples of normal looking bladder mucosae surrounding the cancer and 21 samples of normal bladder mucosae. We investigated the correlation between the expression levels of PRDX I and the clinico-pathological parameters of the 154 patients who could be followed up more than three years.
RESULTS
The expression levels of PRDX I in bladder cancer(0.73pg/ml) were significantly higher that that in the normal bladder mucosae (0.04 pg/ml)(p<0.01) or that in the corresponding normal bladder mucosae surrounding the cancer(0.38pg/ml)(p<0.01). The expression level of PRDX I was not significantly enhanced in the non-recurred(0.87pg/ml) superficial bladder tumor patients compared with the recurred superficial bladder tumor patients(0.63pg/ml), but it was significantly enhanced in the non-progressed(0.82pg/ml) patients compared with the progressed (0.50pg/ml) patients(p<0.05 for each).
CONCLUSIONS
An enhanced expression of PRDX I is strongly associated with the development of bladder cancer. Moreover, enhanced expressions of PRDX I are also positively associated with a low rate of progression of bladder cancer, and this might be useful as a marker for assessing progression in human bladder cancers.

Keyword

Peroxiredoxin I; Bladder tumor

MeSH Terms

Apoptosis
Cell Differentiation
Humans
Mucous Membrane
Peroxiredoxins
RNA, Messenger
Urinary Bladder
Urinary Bladder Neoplasms
Peroxiredoxins
RNA, Messenger

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