Journal List > Korean J Urol > v.49(4) > 1005084

Kim, Sagong, and Kim: Analysis of the Expression of Peroxiredoxin I in Human Bladder Cancer

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.

REFERENCES

1.Popov Z., Hoznek A., Colombel M., Bastuji-Garin S., Lefrere-Belda MA., Bellot J, et al. The prognostic value of p53 nuclear overexpression and MIB-1 as a proliferative marker in transitional cell carcinoma of the bladder. Cancer. 1997. 80:1472–81.
crossref
2.Kausch I., Bohle A. Bladder cancer. II. Molecular aspects and diagnosis. Eur Urol. 2001. 39:498–506.
3.Kausch I., Bohle A. Molecular aspects of bladder cancer III. Prognostic markers of bladder cancer. Eur Urol. 2002. 41:15–29.
4.Finkel T., Holbrook NJ. Oxidants, oxidative stress and the biology of ageing. Nature. 2000. 408:239–47.
crossref
5.Kolonel LN., Hinds MW., Nomura AM., Hankin JH., Lee J. Relationship of dietary vitamin A and ascorbic acid intake to the risk for cancers of the lung, bladder, and prostate in Hawaii. Natl Cancer Inst Monogr. 1985. 69:137–42.
6.Ohnishi S., Murata M., Kawanishi S. Oxidative DNA damage induced by a metabolite of 2-naphthylamine, a smoking-related bladder carcinogen. Jpn J Cancer Res. 2002. 93:736–43.
crossref
7.Akcay T., Saygili I., Andican G., Yalcin V. Increased formation of 8-hydroxy-2′-deoxyguanosine in peripheral blood leukocytes in bladder cancer. Urol Int. 2003. 71:271–4.
crossref
8.Finkel T. Oxidant signals and oxidative stress. Curr Opin Cell Biol. 2003. 15:247–54.
crossref
9.Osada H., Takahashi T. Genetic alterations of multiple tumor suppressors and oncogenes in the carcinogenesis and progression of lung cancer. Oncogene. 2002. 21:7421–34.
crossref
10.Halliwell B., Gutteridge JM., Cross CE. Free radicals, antioxidants, and human disease: where are we now? J Lab Clin Med. 1992. 119:598–620.
11.Chae HZ., Robison K., Poole LB., Church G., Storz G., Rhee SG. Cloning and sequencing of thiol-specific antioxidant from mammalian brain: alkyl hydroperoxide reductase and thiol-specific antioxidant define a large family of antioxidant enzy- mes. Proc Natl Acad Sci U S A. 1994. 91:7017–21.
12.Prosperi MT., Ferbus D., Karczinski I., Goubin G. A human cDNA corresponding to a gene overexpressed during cell proliferation encodes a product sharing homology with amoebic and bacterial proteins. J Biol Chem. 1993. 268:11050–6.
13.Ishii T., Yamada M., Sato H., Matsue M., Taketani S., Nakayama K, et al. Cloning and characterization of a 23-kDa stress-induced mouse peritoneal macrophage protein. J Biol Chem. 1993. 268:18633–6.
crossref
14.Prosperi MT., Apiou F., Dutrillaux B., Goubin G. Organization and chromosomal assignment of two human PAG gene loci: PAGA encoding a functional gene and PAGB a processed pseudogene. Genomics. 1994. 19:236–41.
crossref
15.Lyu MS., Rhee SG., Chae HZ., Lee TH., Adamson MC., Kang SW, et al. Genetic mapping of six mouse peroxiredoxin genes and fourteen peroxiredoxin related sequences. Mamm Genome. 1999. 10:1017–9.
crossref
16.Prosperi MT., Ferbus D., Rouillard D., Goubin G. The pag gene product, a physiological inhibitor of c-abl tyrosine kinase, is overexpressed in cells entering S phase and by contact with agents inducing oxidative stress. FEBS Lett. 1998. 423:39–44.
17.Kinnula VL., Lehtonen S., Sormunen R., Kaarteenaho-Wiik R., Kang SW., Rhee SG, et al. Overexpression of peroxiredoxins I, II, III, V, and VI in malignant mesothelioma. J Pathol. 2002. 196:316–23.
crossref
18.Lehtonen ST., Svensk AM., Soini Y., Paakko P., Hirvikoski P., Kang SW, et al. Peroxiredoxins, a novel protein family in lung cancer. Int J Cancer. 2004. 111:514–21.
crossref
19.Noh DY., Ahn SJ., Lee RA., Kim SW., Park IA., Chae HZ. Overexpression of peroxiredoxin in human breast cancer. Anticancer Res. 2001. 21:2085–90.
20.Fujii J., Ikeda Y. Advances in our understanding of peroxi-redoxin, a multifunctional, mammalian redox protein. Redox Rep. 2002. 7:123–30.
crossref
21.Yanagawa T., Ishikawa T., Ishii T., Tabuchi K., Iwasa S., Bannai S, et al. Peroxiredoxin I expression in human thyroid tumors. Cancer Lett. 1999. 145:127–32.
crossref
22.Yanagawa T., Iwasa S., Ishii T., Tabuchi K., Yusa H., Onizawa K, et al. Peroxiredoxin I expression in oral cancer: a potential new tumor marker. Cancer Lett. 2000. 156:27–35.
crossref
23.Neumann CA., Krause DS., Carman CV., Das S., Dubey DP., Abraham JL, et al. Essential role for the peroxiredoxin Prdx1 in erythrocyte antioxidant defence and tumour suppression. Nature. 2003. 424:561–5.
crossref

Table 1.
Clinico-pathological features of the 154 primary bladder transitional cell carcinomas
Parameters No. of patients
Sex Male 126
Female 28
Age (years) 64.77±12.62
Stage Superficial (107) Ta 26
T1 81
Invasive (47) T2 12
T3 17
T4 18
Grade G1 31
G2 71
G3 52
Recurrence Non-recurred 44
(in superficial tumors) Recurred 63
Progression Non-progressed 119
Progressed 35
Cancer specific death 37
Table 2.
mRNA expression level (pg/ml) among the normal mucosae, the normal looking mucosae surrounding cancer and bladder cancer
No. of patients PRDX I
Bladder cancer 186 0.73±0.88*,†
Normal 21 0.04±0.82
Surrounding normal 73 0.38±0.64§

* : bladder cancer vs. normal mucosa: PRDX I, p<0.01,

: bladder

: cancer vs. surrounding normal mucosa: PRDX I, p<0.01,

§ : normal bladder normal bladder mucosae surrounding cancer, mucosae surrounding cancer vs. normal mucosa: PRDX I, p<0.01

Table 3.
The Peroxiredoxin I (PRDX I) expression levels with the stage and grade of bladder cancer
No. of patients PRDX I (pg/ml) p-value
Stage
Superficial 107 0.77±0.88 0.66
Invasive 47 0.70±0.92
Grade
Low grade 102 0.65±0.79 0.07
High grade 52 0.95±1.03
Superficial bladder cancer
Low grade (Ta-1, G1-2) 92 0.68±0.82 0.04
High grade (T1, G3) 15 1.33±1.05
Invasive bladder cancer
Low grade 10 0.36±0.44 <0.05
High grade 37 0.79±0.99
Table 4.
mRNA expression levels of peroxiredoxin I (PRDX I) in the superficial bladder cancer with recurrence
No. of patients PRDX I (pg/ml) p-value
Non-recurrence 63 0.8703±0.9612 0.137
Recurrence 44 0.6264±0.7233
T1, G3 bladder cancer
Non-recurrence 9 1.6878±1.1303 0.079
Recurrence 6 0.7950±0.6839
Table 5.
mRNA expression levels of peroxiredoxin I (PRDX I) in the bladder cancer with progression
No. of patients PRDX I (pg/ml) p-value
Non-progression 119 0.82±0.94 0.02
Progression 35 0.50±0.64
Superficial bladder cancer
Non-progression 94 0.83±0.90 <0.01
Progression 13 0.32±0.43
T1, G3 bladder cancer
Non-progression 10 1.72±1.06 0.01
Progression 5 0.56±0.43
Invasive bladder cancer
Non-progression 25 0.78±1.07 0.53
Progression 22 0.61±0.73
TOOLS
Similar articles