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Published on: May 10, 2024
[Relationship between XRCC3 gene polymorphisms and lung cancer]
Meng Huang1, Xing Chen, Yuefeng Qiu
1School of Public Health, Fujian Medical University, Fuzhou 350004, China. athome1984@sina.com
Genetic variations in the XRCC3 gene are linked to lung cancer risk. Specific polymorphisms and haplotypes show associations with increased or decreased susceptibility, highlighting their role in lung cancer development.
Area of Science:
- Genetics
- Oncology
Context:
- Lung cancer is a leading cause of cancer-related mortality worldwide.
- Genetic predisposition plays a significant role in lung cancer development.
- The XRCC3 gene is involved in DNA repair pathways, making it a candidate for lung cancer susceptibility studies.
Purpose:
- To investigate the association between specific single nucleotide polymorphisms (SNPs) and haplotypes of the XRCC3 gene and the risk of developing lung cancer.
- To identify potential genetic biomarkers for lung cancer susceptibility.
Summary:
- A case-control study genotyped XRCC3 tag SNPs using PCR-RFLP.
- The rs861537 polymorphism (AG or AA genotype) was associated with a significantly increased lung cancer risk (OR = 1.48).
- The rs1799794 polymorphism (G allele) showed a significantly decreased risk (OR = 0.83), and the CAA haplotype was linked to higher risk compared to CGG.
- Smoking status interacted with the rs861537 polymorphism.
Impact:
- Identifies specific XRCC3 gene variants and haplotypes associated with lung cancer risk.
- Provides insights into the genetic mechanisms underlying lung cancer development.
- May contribute to the development of genetic screening tools for lung cancer susceptibility.
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