The potential effect of gender in combination with common genetic polymorphisms of drug-metabolizing enzymes on the risk of developing acute leukemia

Autors de IIS La Fe

• Eva Barragán González

  Autor

• José Vicente Cervera Zamora

  Autor

• 

  Miguel Ángel Sanz Alonso

  Autor

Autors aliens a IIS La Fe

• Bolufer, Pascual
• Collado, Maria
• Calasanz, Maria-Jose
• Colomer, Dolors
• Roman-Gomez, Jose

Abstract

Background and Objectives We examined common polymorphisms in the genes for glutathione S-transferase (GST), cytochrome P450 (CYP), quinone oxoreductase (NQO1), methylene tetrahydrofolate reductase (MTHFR), and thymidylate synthetase (TYMS) and the role of gender associated with the susceptibility to de novo acute leukemia (AL). Design and Methods We conducted a case-control study analyzing the prevalence of the polymorphisms CYP1A1*2A, CYP2E1*5B, CYP3A4*1B, del(GSTT1), del(GSTM1), NQO1*2, MTHFR C6777, and TYMS 2R/3R in 443 patients with AL [302 with acute myeloblastic leukemia (AML) and 141 with acute lymphoblastic leukemia (ALL)] and 454 control volunteers, using polymerase chain reaction (PCR)-based methods. Results We found a higher incidence of del(GSTF1) in patients with AML than among controls (25.6% vs. 13.7%, OR=2.2, p<0.001) and a higher incidence of NQO1*2 homozygosity (NQO1*2(hom.)) in males with the M3 FAB subtype than in control males (8.6% vs. 2.2%, OR=4.9, p=0.02). The del{GSTT1 and NQO1*2(hom.) polymorphisms increased the risk of ALL (OR=2.2 and 3.0, p=0.001 and 0.003, respectively). The higher risk conferred by NQO1*2,-, and del{GSTT1 mainly affected males (OR=6.1 and 2.4; p=0.002 and 0.005, respectively). Interpretation and Conclusions Males harboring NQO1*2(hom.) and del{GSTT1 polymorphisms showed a higher risk than females of developing AL. Thus, gender might influence the risk of AL associated with these genetic polymorphisms.

Keywords

• polymorphisms; gender; risk; drug-metabolizing enzymes; acute leukemia