Increased risk of acute myeloid leukaemia due to polymorphisms in detoxification and DNA repair enzymes.
Ann Oncol 2007;
18:1523-8. [PMID:
17761709 DOI:
10.1093/annonc/mdm191]
[Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND
Polymorphisms in genes involved in detoxification and DNA-repair pathways may modify the individual's risk for genomic damage, and, as a consequence, the risk of developing malignant diseases.
PATIENTS AND METHODS
We performed a case-control study including 160 cases of acute myeloid leukaemia (AML) and 162 matched controls to test the impact of six genomic polymorphisms on the risk to develop AML and/or therapy-related AML.
RESULTS
We found a significantly higher prevalence of the polymorphic variants RAD51-G135C and CYP3A4-A-290G genes in AML cases, when compared with controls (P = 0.02 and P = 0.04), increasing the risk of AML 2.1-folds (95% CI: 1.1-4.0) and 3.2-fold (95% CI: 1.1-11.5), respectively. Carriers of both the RAD51-G135C and CYP3A4-A-290G variants were at highest AML risk (P = 0.003; OR:13,6; 95% CI: 2.0-585.5), suggesting a synergistic effect between these polymorphisms.
CONCLUSIONS
These results suggest that polymorphic variants in DNA-repair and detoxification enzymes may co-operate in modulating the individual's risk of AML.
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