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Associations between ERCC2 polymorphisms and gliomas.

M Caggana1, J Kilgallen, J M Conroy

  • 1Division of Genetic Disorders, New York State Department of Health, Wadsworth Center, Albany 12201-0509, USA.

Cancer Epidemiology, Biomarkers & Prevention : a Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology
|April 25, 2001
PubMed
Summary
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Genetic variations in the ERCC2 gene may influence glioma risk. A study found a link between a specific ERCC2 variant and increased odds of developing oligoastrocytoma, suggesting a potential role in glioma development.

Area of Science:

  • Genetics
  • Oncology
  • Molecular Biology

Background:

  • The ERCC2 gene is crucial for DNA repair and transcription.
  • Mutations in ERCC2 cause severe genetic disorders like xeroderma pigmentosum.
  • ERCC2 polymorphisms' functional impact on glioma risk is largely unknown.

Purpose of the Study:

  • To investigate the association between ERCC2 gene sequence variations and adult-onset gliomas.
  • To determine if specific ERCC2 polymorphisms increase or decrease glioma susceptibility.

Main Methods:

  • A case-control study involving 187 glioma patients and 169 healthy controls.
  • Genotyping of seven known ERCC2 polymorphisms (R156R, I199M, H201Y, D312N, A575A, D711D, K751Q).
  • Identification of a novel R616C polymorphism and analysis of its association with glioma risk.

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Main Results:

  • A significant association was found between the silent AA variant at ERCC2 codon 156 and increased glioma risk (OR 2.3).
  • The strongest association was observed in oligoastrocytoma patients (OR 3.2).
  • No significant overall association was found for variants at D312N, D711D, and K751Q.

Conclusions:

  • Constitutive ERCC2 sequence variations, particularly the R156R silent variant, may play a role in glioma development.
  • The findings suggest ERCC2 variants could be involved in glioma prevention or causation.
  • Further research is needed to confirm the role of ERCC2 and potentially linked genes in glioma etiology.