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Indian J Hum Genet. 2011 Sep;17(3):175-8. doi: 10.4103/0971-6866.92098.

Association of CYP3A5*3 polymorphism with development of acute leukemia.

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  • 1Department of Genetics, Osmania University, Hyderabad, India.

Abstract

BACKGROUND:

CYP3A5 was observed to be an important genetic contributor to inter individual differences in CYP3A-dependent drug metabolism in acute leukemic patients. Loss of CYP3A5 expression was mainly conferred by a single nucleotide polymorphism at 6986A>G (CYP3A5*3). We investigated the association between CYP3A5*3 polymorphism and acute leukemia.

MATERIALS AND METHODS:

Two hundred and eighty nine acute leukemia cases comprising of 145 acute lymphocytic leukemia (ALL), 144 acute myeloid leukemia and 241 control samples were analyzed for CYP3A5*3 polymorphism using PCR-RFLP method. Statistical analysis was performed with SPSS version (15.0) to detect the association between CYP3A5*3 polymorphism and acute leukemia.

RESULTS:

The CYP3A5*3 polymorphism 3/3 genotype was significantly associated with acute leukemia development (χ(2)- 133.53; df-2, P 0.000). When the data was analyzed with respect to clinical variables, mean WBC, blast % and LDH levels were increased in both ALL and AML cases with 3/3 genotype. The epidemiological variables did not contribute to the genotype risk to develop either AML or ALL.

CONCLUSION:

The results suggest that the CYP3A5*3 polymorphism might confer the risk to develop ALL or AML emphasizing the significance of effective phase I detoxification in carcinogenesis. Association of the polymorphism with clinical variables indicate that the 3/3 genotype might also contribute to poorer survival of the patients.

KEYWORDS:

Acute leukemia; CYP3A5; drug metabolism; polymorphism

PMID:
22345989
[PubMed]
PMCID:
PMC3276986
Free PMC Article
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