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NBN and XRCC3 genetic variants in childhood acute lymphoblastic leukaemia
Bozena Smolkova1, Maria Dusinska2, Kari Hemminki1
1Division of Molecular Genetic Epidemiology, German Cancer Research Center, Heidelberg, Germany.
Abstract:
Nibrin and DNA repair protein XRCC3 are involved in DNA double-strand break repair. We genotyped seven tagging SNPs in these genes (rs1805794, rs709816; rs1063054; rs7141928, rs1799794, rs861530, rs861539) with the aim to analyse their association with acute lymphoblastic leukaemia (ALL), a disease, that is characterised by elevated genetic instability. Study consisted of 460 paediatric ALL cases and 552 healthy controls. For selection of DNA sequence variants we employed SNP-tagging approach, incorporating the HAPMAP CEU reference panel data. We did not find association of analysed and tagged SNPs and derived haplotypes with the ALL risk thus did not confirm the hypothesis that analysed DNA recombination repair variants account for increased susceptibility to ALL.
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