Polymorphisms in xenobiotic-metabolizing genes and the risk of chronic lymphocytic leukemia and non-Hodgkin's lymphoma in adult Russian patients

Autor: V. E. Kuznetsova, Eugene Nikitin, Tatyana V. Nasedkina, Alexander V. Chudinov, Oleg S. Glotov, Andrey Sudarikov, O. A. Gra, Andrey S. Glotov
Rok vydání: 2008
Předmět:
Zdroj: American Journal of Hematology. 83:279-287
ISSN: 1096-8652
0361-8609
Popis: Polymorphisms in genes coding xenobiotic-metabolizing enzymes are considered as risk factors modifying susceptibility to cancer. We developed a biochip for the analysis of 18 mutations in 10 genes of metabolizing system: CYP1A1, CYP2D6, GSTT1, GSTM1, MTHFR, MTRR, NQO1, CYP2C9, CYP2C19, and NAT2. Using allele-specific hybridization on the biochip 76 T-cell non-Hodgkin’s lymphoma (NHL) patients, 83 B-cell chronic lymphocytic leukemia (B-CLL) patients, and 177 healthy donors were tested. Polymorphic CYP1A1 alleles were more frequent in B-CLL patients relative to normal controls, for example, a combination of polymorphic variants 4887C > A, 4889A > G, and 6235T > C (OR 5 1.76, 95% CI 5 1.0‐3.1). The GSTM1 null genotype was more frequent in NHL patients relative to controls (OR 5 1.82, 95% CI 5 1.1‐3.1). The combination of unfavorable polymorphic CYP1A1 variants and GSTM1 null genotype was found more frequently in B-CLL patients relative to controls (OR 5 2.52, 95% CI 5 1.3‐4.9). In addition, male B-CLL patients demonstrated a significantly increased occurrence of heterozygous and homozygous allele *2 of CYP2C9 gene (OR 5 2.38, 95% CI 5 1.1‐5.2) as well as a combination of alleles *2 and *3 of the gene (OR 5 2.09, 95% CI 5 1.1‐3.9). Thus, our findings show the association between polymorphic alleles of CYP1A1, GSTM1, and CYP2C9 genes and the risk to develop NHL or B-CLL. The developed biochip can be considered as a convenient analytical tool for research studies and predictive analysis in oncohematology. Am. J. Hematol. 00:000‐000, 2007. V C 2007 Wiley-Liss, Inc.
Databáze: OpenAIRE