Polymorphisms of the XRCC1, XRCC3, and XPD genes, and colorectal cancer risk: A case-control study in Taiwan

Chih Ching Yeh, Fung Chang Sung, Reiping Tang, Chung Rong Chang-Chieh, Ling Ling Hsieh

Research output: Contribution to journalArticle

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Abstract

Background: Recent studies relating to the association between DNA repair-gene polymorphisms and colorectal cancer risk would, to the best of our knowledge, appear to be very limited. This study was designed to examine the polymorphisms associated with three DNA repair genes, namely: XRCC1 Arg399Gln, XRCC3 Thr241Met and XPD Lys751Gln, and investigate their role as susceptibility markers for colorectal cancer. Methods: We conducted a case-control study including 727 cases of cancer and 736 hospital-based age- and sex-matched healthy controls to examine the role of genetic polymorphisms of three DNA-repair genes (XRCC1, XRCC3 and XPD) in the context of colorectal cancer risk for the Taiwanese population. Genomic DNA isolated from 10 ml whole blood was used to genotype XRCC1 Arg399Gln, XRCC3 Thr241Met and XPD Lys751Gln by means of polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) analysis. Results: The risk for colorectal cancer did not appear to differ significantly amongst individuals featuring the XRCC1 399Arg/Arg genotype (OR = 1.18; 95% CI, 0.96-1.45), the XRCC3 241Thr/Thr genotype (OR = 1.25; 95% CI, 0.88-1.79) or the XPD 751Gln allele (OR = 1.20; 95% CI, 0.90-1.61), although individuals featuring a greater number of risk genotypes (genotype with OR greater than 1) did experience a higher risk for colorectal cancer when compared to those who didn't feature any risk genotypes (Trend test P = 0.03). Compared with those individuals who didn't express any putative risk genotypes, individuals featuring all of the putative risk genotypes did experience a significantly greater cancer risk (OR = 2.43, 95% CI = 1.21-4.90), particularly for individuals suffering tumors located in the rectum (OR = 3.18, 95% CI = 1.29-7.82) and diagnosed prior to the age of 60 years (OR = 4.90, 95% CI = 1.72-14.0). Conclusions: Our results suggest that DNA-repair pathways may simultaneously modulate the risk of colorectal cancer for the Taiwanese population, and, particularly for rectal cancer and younger patients.

Original languageEnglish
Article number12
JournalBMC Cancer
Volume5
DOIs
Publication statusPublished - Jan 28 2005
Externally publishedYes

Fingerprint

Taiwan
Case-Control Studies
Colorectal Neoplasms
Genotype
Genes
DNA Repair
Cancer Care Facilities
Genetic Polymorphisms
Rectal Neoplasms
Rectum
Restriction Fragment Length Polymorphisms
Population
Neoplasms
Alleles
Polymerase Chain Reaction
DNA

Keywords

  • XRCC3
  • XPD genes
  • XRCC1
  • colorectal cancer

ASJC Scopus subject areas

  • Oncology
  • Cancer Research
  • Genetics

Cite this

Polymorphisms of the XRCC1, XRCC3, and XPD genes, and colorectal cancer risk : A case-control study in Taiwan. / Yeh, Chih Ching; Sung, Fung Chang; Tang, Reiping; Chang-Chieh, Chung Rong; Hsieh, Ling Ling.

In: BMC Cancer, Vol. 5, 12, 28.01.2005.

Research output: Contribution to journalArticle

Yeh, Chih Ching ; Sung, Fung Chang ; Tang, Reiping ; Chang-Chieh, Chung Rong ; Hsieh, Ling Ling. / Polymorphisms of the XRCC1, XRCC3, and XPD genes, and colorectal cancer risk : A case-control study in Taiwan. In: BMC Cancer. 2005 ; Vol. 5.
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abstract = "Background: Recent studies relating to the association between DNA repair-gene polymorphisms and colorectal cancer risk would, to the best of our knowledge, appear to be very limited. This study was designed to examine the polymorphisms associated with three DNA repair genes, namely: XRCC1 Arg399Gln, XRCC3 Thr241Met and XPD Lys751Gln, and investigate their role as susceptibility markers for colorectal cancer. Methods: We conducted a case-control study including 727 cases of cancer and 736 hospital-based age- and sex-matched healthy controls to examine the role of genetic polymorphisms of three DNA-repair genes (XRCC1, XRCC3 and XPD) in the context of colorectal cancer risk for the Taiwanese population. Genomic DNA isolated from 10 ml whole blood was used to genotype XRCC1 Arg399Gln, XRCC3 Thr241Met and XPD Lys751Gln by means of polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) analysis. Results: The risk for colorectal cancer did not appear to differ significantly amongst individuals featuring the XRCC1 399Arg/Arg genotype (OR = 1.18; 95{\%} CI, 0.96-1.45), the XRCC3 241Thr/Thr genotype (OR = 1.25; 95{\%} CI, 0.88-1.79) or the XPD 751Gln allele (OR = 1.20; 95{\%} CI, 0.90-1.61), although individuals featuring a greater number of risk genotypes (genotype with OR greater than 1) did experience a higher risk for colorectal cancer when compared to those who didn't feature any risk genotypes (Trend test P = 0.03). Compared with those individuals who didn't express any putative risk genotypes, individuals featuring all of the putative risk genotypes did experience a significantly greater cancer risk (OR = 2.43, 95{\%} CI = 1.21-4.90), particularly for individuals suffering tumors located in the rectum (OR = 3.18, 95{\%} CI = 1.29-7.82) and diagnosed prior to the age of 60 years (OR = 4.90, 95{\%} CI = 1.72-14.0). Conclusions: Our results suggest that DNA-repair pathways may simultaneously modulate the risk of colorectal cancer for the Taiwanese population, and, particularly for rectal cancer and younger patients.",
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AU - Sung, Fung Chang

AU - Tang, Reiping

AU - Chang-Chieh, Chung Rong

AU - Hsieh, Ling Ling

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N2 - Background: Recent studies relating to the association between DNA repair-gene polymorphisms and colorectal cancer risk would, to the best of our knowledge, appear to be very limited. This study was designed to examine the polymorphisms associated with three DNA repair genes, namely: XRCC1 Arg399Gln, XRCC3 Thr241Met and XPD Lys751Gln, and investigate their role as susceptibility markers for colorectal cancer. Methods: We conducted a case-control study including 727 cases of cancer and 736 hospital-based age- and sex-matched healthy controls to examine the role of genetic polymorphisms of three DNA-repair genes (XRCC1, XRCC3 and XPD) in the context of colorectal cancer risk for the Taiwanese population. Genomic DNA isolated from 10 ml whole blood was used to genotype XRCC1 Arg399Gln, XRCC3 Thr241Met and XPD Lys751Gln by means of polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) analysis. Results: The risk for colorectal cancer did not appear to differ significantly amongst individuals featuring the XRCC1 399Arg/Arg genotype (OR = 1.18; 95% CI, 0.96-1.45), the XRCC3 241Thr/Thr genotype (OR = 1.25; 95% CI, 0.88-1.79) or the XPD 751Gln allele (OR = 1.20; 95% CI, 0.90-1.61), although individuals featuring a greater number of risk genotypes (genotype with OR greater than 1) did experience a higher risk for colorectal cancer when compared to those who didn't feature any risk genotypes (Trend test P = 0.03). Compared with those individuals who didn't express any putative risk genotypes, individuals featuring all of the putative risk genotypes did experience a significantly greater cancer risk (OR = 2.43, 95% CI = 1.21-4.90), particularly for individuals suffering tumors located in the rectum (OR = 3.18, 95% CI = 1.29-7.82) and diagnosed prior to the age of 60 years (OR = 4.90, 95% CI = 1.72-14.0). Conclusions: Our results suggest that DNA-repair pathways may simultaneously modulate the risk of colorectal cancer for the Taiwanese population, and, particularly for rectal cancer and younger patients.

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