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Vol. 73, No. 6, 2006
Issue release date: March 2007
Section title: Original Paper
Pathobiology 2006;73:295–303
(DOI:10.1159/000099124)

Association between DNA Repair Gene Polymorphisms and p53 Alterations in Japanese Patients with Muscle-Invasive Bladder Cancer

Shigeru Sakano Hiroaki Matsumoto Yoshiaki Yamamoto Yoshihisa Kawai Satoshi Eguchi Chietaka Ohmi Hideyasu Matsuyama Katsusuke Naito

Sakano S. · Matsumoto H. · Yamamoto Y. · Kawai Y. · Eguchi S. · Ohmi C. · Matsuyama H. · Naito K.
Department of Urology, Yamaguchi University School of Medicine, Ube, Japan

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: 8/21/2006
Accepted: 11/10/2006
Published online: 3/23/2007

Number of Print Pages: 9
Number of Figures: 3
Number of Tables: 3

ISSN: 1015-2008 (Print)
eISSN: 1423-0291 (Online)

For additional information: http://www.karger.com/PAT

Abstract

Objective: DNA repair enzymes play a vital role in protecting the genome from carcinogens, several of which can cause mutations in the TP53 gene in bladder cancer. Some single nucleotide polymorphisms (SNPs) in DNA repair genes reportedly modulate the repair capacity. This study aimed to clarify the effect of these functional SNPs on the alteration of p53 in muscle-invasive bladder cancer. Methods: We investigated the association between SNPs in xeroderma pigmentosum complementation groups C (XPC), D and G and X-ray repair cross-complementing group 1 and 3 genes, and p53 expression and allelic imbalance at the TP53 locus in Japanese patients with muscle-invasive bladder cancer. p53 expression and the allelic imbalance were evaluated using immunohistochemistry and a microsatellite marker, respectively. Results: Positive p53 expression was significantly less frequent in patients with the CC genotype of the XPC gene than in those with the AA or AC genotype (p = 0.0005). C alleles of the XPC gene were also less frequent in patients with positive p53 expression (p = 0.01). Conclusion: Our results suggested that the XPC polymorphism might affect p53 alteration and the molecular pathway defined by the p53 alteration in the development of muscle-invasive bladder cancer.


  

Author Contacts

Prof. Katsusuke Naito
Department of Urology, Yamaguchi University School of Medicine
1-1-1 Minami-Kogushi
Ube, Yamaguchi 755-8505 (Japan)
Tel. +81 836 22 2272, Fax +81 836 22 2276, E-Mail katsunai@yamaguchi-u.ac.jp

  

Article Information

Received: August 21, 2006
Accepted after revision: November 10, 2006
Number of Print Pages : 9
Number of Figures : 3, Number of Tables : 3, Number of References : 40

  

Publication Details

Pathobiology

Vol. 73, No. 6, Year 2006 (Cover Date: March 2007)

Journal Editor: Borisch, B. (Geneva)
ISSN: 1015–2008 (print), 1423–0291 (Online)

For additional information: http://www.karger.com/PAT


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: 8/21/2006
Accepted: 11/10/2006
Published online: 3/23/2007

Number of Print Pages: 9
Number of Figures: 3
Number of Tables: 3

ISSN: 1015-2008 (Print)
eISSN: 1423-0291 (Online)

For additional information: http://www.karger.com/PAT


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