[The relationship between polymorphism of genes XPA, XPC, XPD, XRCC1 and susceptibility to acute lymphoblastic leukemia].

OBJECTIVE

To study the relationship between polymorphism of genes XPA, XPC, XPD, XRCC1 and susceptibility to acute lymphoblastic leukemia (ALL) in a Chinese population.

METHODS

Polymorphism were determined by a case-control study through matrix-assisted laser desorption/ionization tandem time-of-flight mass spectrometry method of Mass-ASSAY platform in 114 confirmed ALL cases and 169 age- and sex-matched controls, so as to compare the relationship between different genotypes and ALL risk.

RESULTS

Multivariate logistic regression analysis revealed that individuals carrying at least one 23G variant allele (AG/GG genotypes) had a significantly increased risk for ALL (adjusted OR 2.02; 95%CI 1.08 - 3.78) compared with the wild-type genotype (23AA), and evidence that positive interactions between the polymorphisms in XPC C499T and XPA A23G might occur. Furthermore, individuals with both putative risk genotypes had a significantly higher risk (adjusted OR 5.60; 95%CI 1.57 - 19.90), compared with those with both wild-genotypes. By contrast, no significant association was observed between the XPD T751G, XRCC1 G399A, C194T polymorphism and ALL risk.

CONCLUSIONS

XPA A23G and XPC C499T polymorphism may contribute to the risk of developing ALL. There are significant combinations between XPC C499T and XPA A23G.