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The Contribution of DNA Ligase 4 Polymorphisms to Colorectal Cancer.
Yang Deng1,2,3, Tao-Wei Ke4,5, Te-Cheng Yueh5,6,7
1Department of General Surgery, Wuxi Branch of Shanghai Ruijin Hospital, Wuxi, P.R. China.
This study investigated DNA ligase 4 (Lig4) genotypes and colorectal cancer (CRC) risk in Taiwan. No significant association was found between Lig4 rs1805388 genotypes and CRC susceptibility, suggesting it may not be a predictive marker.
Area of Science:
- Genetics
- Oncology
- Molecular Biology
Background:
- Genetic susceptibility plays a role in colorectal cancer (CRC) development.
- Numerous CRC biomarkers exist, but the role of DNA ligase 4 (Lig4) genotypes is largely unknown.
Purpose of the Study:
- To investigate the association between DNA ligase 4 (Lig4) rs1805388 genotypes and colorectal cancer (CRC) risk.
- To determine if Lig4 genotypes can serve as predictive markers for CRC in a Taiwanese population.
Main Methods:
- Genotyping of Lig4 rs1805388 using polymerase chain reaction-restriction fragment length polymorphism.
- Case-control study design with 362 CRC cases and 362 matched controls from Taiwan.
Main Results:
- No significant difference in genotypic distribution of Lig4 rs1805388 (CC, CT, TT) between CRC cases and controls (p for trend=0.7314).
- The T allele of Lig4 rs1805388 showed a non-significant trend towards increased CRC risk (OR=1.10, p=0.4685).
Conclusions:
- The Lig4 rs1805388 variant genotypes do not appear to be significant predictive markers for colorectal cancer risk in the Taiwanese population.
- Further research may be needed to explore other Lig4 variants or populations.
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