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BioMed Research International
Volume 2013 (2013), Article ID 705862, 6 pages
http://dx.doi.org/10.1155/2013/705862
Research Article

HLA-B*40 Allele Plays a Role in the Development of Acute Leukemia in Mexican Population: A Case-Control Study

1Laboratorio de Sinovio Análisis Molecular, Instituto Nacional de Rehabilitación, Secretaría de Salud (SSA), Calzada México-Xochimilco Número 289, Tlalpan, 14389 México, DF, Mexico
2Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Interior, Ciudad Universitaria, Coyoacán, 04510 México, DF, Mexico
3Centro Nacional de la Transfusión Sanguínea, SSA. Avenida Othón de Mendizábal 195, Gustavo A. Madero, 07360 México, DF, Mexico
4Immunogenetics Division, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), SSA. Vasco de Quiroga 15, Col. Sección XVI, Tlalpan, 14000 México, DF, Mexico

Received 29 July 2013; Revised 7 October 2013; Accepted 16 October 2013

Academic Editor: Jorge Fabián Quarleri

Copyright © 2013 Javier Fernández-Torres et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Among oncohematological diseases, acute lymphoid leukemia (ALL) and acute myeloid leukemia (AML) are characterized by the uncontrolled production and accumulation of blasts that can lead to death. Although the physiopathology of these diseases is multifactorial, a genetic factor seems to be at play. Several studies worldwide have shown association of ALL and AML with several alleles of the major histocompatibility complex (MHC). Objective. To determine gene frequencies of HLA-B alleles in Mexicans (individuals with Native American genetic background admixed with European descent) with ALL and AML. Methods. We compared the HLA-B alleles in 213 patients with ALL and 85 patients with AML to those present in 731 umbilical cord blood (UCB) samples as a control group; this was done by means of the PCR-SSP technique. Results. We found an increased frequency of the HLA-B*40 allele in ALL patients as compared to the control group (14.5% versus 9.84%, , OR = 1.67); this was particularly evident in a subgroup of young (less than 18 years old) ALL patients ( , OR = 1.76); likewise, a decreased frequency of HLA-B*40 allele in AML patients was observed as compared to the control group (4.70% versus 9.84%, , OR = 0.42). Conclusions. These results might suggest opposing effects of the HLA-B*40 in the genetic susceptibility to develop ALL or AML and offer the possibility to study further the molecular mechanisms of cell differentiation within the bone marrow lineage.