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Erschienen in: Cancer Causes & Control 10/2008

01.12.2008 | Original Paper

Polymorphisms of the NER pathway genes, ERCC1 and XPD are associated with esophageal adenocarcinoma risk

verfasst von: Darren Tse, Rihong Zhai, Wei Zhou, Rebecca S. Heist, Kofi Asomaning, Li Su, Thomas J. Lynch, John C. Wain, David C. Christiani, Geoffrey Liu

Erschienen in: Cancer Causes & Control | Ausgabe 10/2008

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Abstract

Purpose

Functional variation in DNA repair capacity through single nucleotide polymorphisms (SNPs) of key repair genes is associated with a higher risk of developing various types of cancer. Studies have focused on the nucleotide excision repair (NER) and base excision repair (BER) pathways. We investigated whether variant alleles in seven SNPs within these pathways increased the risk of esophageal adenocarcinoma.

Methods

DNA was extracted from prospectively collected blood specimens. The samples were genotyped for SNPs in NER genes (XPD Lys751Gln, XPD Asp312Asn, ERCC1 8092C/A, and ERCC1 118C/T), and BER genes (XRCC1 Arg399Gln, APE1 Asp148Glu, and hOGG1 Ser326Cys). The presence of variant alleles was correlated with risk of esophageal adenocarcinoma both individually and jointly.

Results

Variant alleles in NER SNPs XPD Lys751Gln (AOR = 1.50, 95% CI 1.1–2.0), ERCC1 8092 C/A (AOR = 1.44, 95% CI 1.1–1.9), and ERCC1 118C/T (AOR = 1.42, 95% CI 1.0–1.9) were individually associated with esophageal adenocarcinoma risk. An increasing number of variant alleles in NER SNPs showed a significant trend with esophageal adenocarcinoma risk (p = 0.007).

Conclusions

The presence of variant alleles in NER genes increases risk of esophageal adenocarcinoma. There is evidence of an additive role for SNPs along a common DNA repair pathway. Future larger studies of esophageal adenocarcinoma etiology should evaluate entire biological pathways.
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Metadaten
Titel
Polymorphisms of the NER pathway genes, ERCC1 and XPD are associated with esophageal adenocarcinoma risk
verfasst von
Darren Tse
Rihong Zhai
Wei Zhou
Rebecca S. Heist
Kofi Asomaning
Li Su
Thomas J. Lynch
John C. Wain
David C. Christiani
Geoffrey Liu
Publikationsdatum
01.12.2008
Verlag
Springer Netherlands
Erschienen in
Cancer Causes & Control / Ausgabe 10/2008
Print ISSN: 0957-5243
Elektronische ISSN: 1573-7225
DOI
https://doi.org/10.1007/s10552-008-9171-4

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