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ERCC1 haplotypes modify bladder cancer risk: a case-control study.

Fulvio Ricceri1, Simonetta Guarrera, Carlotta Sacerdote

  • 1Unit of Epidemiology and Life Sciences, ISI Foundation, Turin, Italy.

DNA Repair
|January 12, 2010
PubMed
Summary
This summary is machine-generated.

Genetic variations in DNA repair genes influence bladder cancer risk. Specific single nucleotide polymorphisms (SNPs) in XRCC1 and ERCC1 genes were associated with increased or decreased bladder cancer risk, respectively.

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Area of Science:

  • Genetics
  • Cancer Epidemiology
  • Molecular Biology

Background:

  • Bladder cancer risk is influenced by environmental and genetic factors.
  • DNA repair systems play a crucial role in preventing cancer development.
  • Previous studies suggest an association between DNA repair genes and bladder cancer risk.

Purpose of the Study:

  • To investigate the association between specific single nucleotide polymorphisms (SNPs) and haplotypes in DNA repair genes and bladder cancer risk.
  • To analyze the role of 36 SNPs in 10 DNA repair genes in a case-control study.
  • To explore gene-gene interactions in bladder cancer development.

Main Methods:

  • A case-control study was conducted with 456 bladder cancer cases and 376 hospital controls.
  • Genotyping of 36 SNPs in 10 DNA repair genes was performed.
  • Single SNP and haplotype analyses were used to assess the association with bladder cancer risk.

Main Results:

  • The XRCC1-rs915927 G allele was associated with an increased risk of bladder cancer (OR=1.55).
  • Rare alleles of three ERCC1 SNPs (rs967591, rs735482, rs2336219) showed a protective effect against bladder cancer.
  • Specific haplotypes in XRCC3, ERCC1, MGMT, XRCC1, and XRCC2 genes were significantly associated with altered bladder cancer risk.

Conclusions:

  • Genetic variants in DNA repair genes are linked to bladder cancer development.
  • Haplotype analysis provides further evidence for the role of DNA repair genes in bladder cancer susceptibility.
  • High-order gene-gene interactions may modulate bladder cancer risk and warrant further investigation.