The role of NOD1/CARD4 and NOD2/CARD15 genetic variations in lung cancer risk
Güneş, Hasan Veysi
Öner, Kevser Setenay
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KünyeÖzbayer, C., Kurt, H., Bayramoğlu, A., Güneş, H. V., Metintaş, M., Değirmenci, I., & Oner, K. S. (2015). The role of NOD1/CARD4 and NOD2/CARD15 genetic variations in lung cancer risk. Inflammation Research, 64(10), 775-779.
Background and aim NOD1/CARD4 and NOD2/CARD15 are members of the Nod-like receptor (NLR) family, and they contain a caspase recruitment domain (CARD). NLRs are located in the cytosol where they bind bacterial and viral ligands and play a key role in the innate and adaptive immune response, apoptosis, autophagy, and reactive oxygen species generation. NLR gene polymorphisms may shift the balance between pro- and anti-inflammatory cytokines and modulate the risk of infection, chronic inflammation, and cancer. NOD1/CARD4 and NOD2/CARD15 gene polymorphisms may also be associated with altered risks for many cancer types. The aim of our study was to evaluate the potential associations between lung cancer and NOD1/CARD4 and NOD2/CARD15 polymorphisms. Method The NOD1/CARD4 (rs5743336) and NOD2/CARD15 (rs2066847) SNPs were analyzed by PCR restriction fragment-length polymorphism analysis (PCR-RFLP) in 260 subjects (lung cancer patients: n = 160; healthy controls: n = 100) of Turkish origin. PCR products were digested with AvaI for rs5743336 and ApaI for rs2066847 and then visualized. Results Comparisons of the genotypes between control and lung cancer patients were performed by Chi-square tests. We found a significant difference in the genotypic distribution of the rs5743336 variant of NOD1/CARD4 between lung cancer patients and controls (p = 0.010, chi (2) = 9.220). However, we did not identify any statistically significant difference for the p.Leu1007fsX1008 (rs2066847) genotype of NOD2/CARD15 between groups (p > 0.05). Conclusion According to our data, the rs5743336 variant of the NOD1/CARD4 gene may influence the diagnosis and treatment of lung cancer, whereas the rs2066847 variant of the NOD2/CARD15 gene is not associated with lung cancer risk in the Turkish population.