Table of Contents
ISRN Oncology
Volume 2014, Article ID 530675, 11 pages
http://dx.doi.org/10.1155/2014/530675
Research Article

Mitochondrial DNA Haplogroups and Susceptibility to Prostate Cancer in a Colombian Population

1Human Genetics Laboratory, Science Faculty, Universidad de los Andes, Bogotá, Colombia
2Prostate Clinic, Fundación Santa Fe de Bogotá University Hospital, Bogotá, Colombia
3Urology Department, Hospital Militar Central, Bogotá, Colombia
4Pathology and Laboratory Department, Fundación Santa Fe de Bogotá University Hospital, Bogotá, Colombia

Received 24 September 2013; Accepted 28 October 2013; Published 28 January 2014

Academic Editors: P. Parrella and L. Saragoni

Copyright © 2014 D. Cano 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

Prostate cancer (PC) is one of the most common cancers and the second leading cause of mortality from cancer in Colombian men. Mitochondrial DNA (mtDNA) haplogroups have been associated with the risk of PC. Several studies have demonstrated dramatic differences regarding the risk of PC among men from different ethnic backgrounds. The present study was aimed at assessing the relationship between mtDNA haplogroups and PC. The mitochondrial DNA hypervariable segment I (HSV-1) was sequenced in a population-based study covering 168 cases (CA) and 140 unrelated healthy individuals as a control group (CG). A total of 92 different mtDNA sequences were found in CA and 59 were found in the CG. According to the geographical origin attributed to each mtDNA haplogroup, 82% of the mtDNA sequences found in both groups were Native Americans (A, B, C, and D). The most frequent was A (41.1%CA–42.1%CG), followed by B (22.0%CA–21.4%CG), C (12.0%CA–11.4%CG), and D (6%CA–10.0%CG). A lower percentage of European haplogroups (U, H, K, J, M, T, and HV) were also found (13.1%CA–12.9%CG), likewise African haplogroups (L0, L1, L2, and L3) (6.5%CA–2.1%CG). There were no statistically significant differences between the distribution of mtDNA haplogroups in CA and the CG in this study.