Polymorphism of genes of the antioxidant system in the development of predispositions to lung cancer

Resumo

We analyzed the polymorphic loci in the genes of the antioxidant system enzymes, such as GSTP1 (313A>G and 341C>T), MnSOD (47С>Т), GPx1 (599C>T), and CAT (–262C>>T), among 497 residents of Kemerovo oblast (Western Siberia, Russia). The analysis of the single-locus effects demonstrated a significant protective effect of the major C allele in the GPx1 (599C>T) locus. The MDR analysis of the gene-gene interactions showed that the GPx1 and the CAT genes work in close cooperation and mutually reinforce the risk of development of squamous cell lung cancer among the inhabitants of the industrial region.