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Molecular Biology Reports

, Volume 40, Issue 1, pp 449–455 | Cite as

Interleukin-6 gene −174G>C and −636G>C promoter polymorphisms and prostate cancer risk

  • J. F. Magalhães
  • A. J. Cortinhas
  • C. M. Albuquerque
  • C. S. Baptista
  • R. Ribeiro
  • Carlos Viegas
  • Augusto Matos
  • João Machado
  • Maria A. Pires
  • Henrique Guedes-Pinto
  • A. Martins-Bessa
  • J. C. Leitão
  • E. Bastos
Article

Abstract

Prostate cancer (PCa) is one of the most commonly diagnosed internal malignancies affecting men. Due to the important roles of IL-6 in different physiological and pathophysiological processes, IL-6 polymorphisms may modulate PCa risk. IL-6 −174 G>C (rs 1800795, also designated −236 G>C) and −636 G>C (rs 1800796, also designated −572 G>C) promoter polymorphisms have been implicated in PCa susceptibility, albeit still controversial. A literature search using PubMed and Highwire databases was conducted, resulting in eight case–control studies concerning the IL-6 −174 G>C polymorphism (11,613 PCa cases and 13,992 controls) and four case–control publications regarding the IL-6 −636 G>C polymorphism (1,941 PCa cases and 3,357 controls). In order to derive a more precise estimation, a meta-analysis based upon these selected case–control studies was performed. There was no significant association between IL-6 −174 G>C polymorphism and PCa increased risk. Nevertheless, the presence of allele C and the CC genotype were statistically significantly associated with decreased PCa risk in the overall analysis for IL-6 −636 G>C polymorphism. Additional studies in larger samples and analyses of functional repercussions of these SNPs in prostate tumor cells are necessary to validate these findings.

Keywords

Interleukin-6 Polymorphism Prostate cancer Risk 

Supplementary material

11033_2012_2079_MOESM1_ESM.docx (729 kb)
Supplementary material 1 (DOCX 729 kb)
11033_2012_2079_MOESM2_ESM.docx (564 kb)
Supplementary material 2 (DOCX 563 kb)

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Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • J. F. Magalhães
    • 1
  • A. J. Cortinhas
    • 2
  • C. M. Albuquerque
    • 1
  • C. S. Baptista
    • 1
    • 3
  • R. Ribeiro
    • 4
  • Carlos Viegas
    • 6
    • 7
  • Augusto Matos
    • 8
    • 9
  • João Machado
    • 6
  • Maria A. Pires
    • 6
    • 10
  • Henrique Guedes-Pinto
    • 1
  • A. Martins-Bessa
    • 5
  • J. C. Leitão
    • 2
  • E. Bastos
    • 1
  1. 1.Centre of Genomics and Biotechnology, Institute for Biotechnology and BioengineeringUniversity of Trás-os-Montes and Alto Douro (CGB-UTAD/IBB), Quinta dos PradosVila RealPortugal
  2. 2.Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD)University of Trás-os-Montes and Alto DouroVila RealPortugal
  3. 3.Multidisciplinary Unit for Biomedical Research, Institute of Biomedical Sciences Abel SalazarUniversity of Porto (ICBAS-UMIB-UP)PortoPortugal
  4. 4.Molecular Oncology Group—CI, Portuguese Institute of Oncology, Porto CentreRua Dr. António Bernardino AlmeidaPortoPortugal
  5. 5.Department of Veterinary Sciences, CECAV—Agricultural and Veterinary Sciences SchoolUniversity of Trás-os-Montes and Alto Douro, Quinta dos PradosVila RealPortugal
  6. 6.Department of Veterinary Sciences, School of Agriculture and Veterinary SciencesUniversity of Trás-os-Montes and Alto Douro (UTAD)Vila RealPortugal
  7. 7.3Bs, University of MinhoGuimarãesPortugal
  8. 8.Multidisciplinary Unit for Biomedical Research (UMIB)University of PortoPortoPortugal
  9. 9.Department of Veterinary Clinics, Institute of Biomedical Sciences Abel Salazar (ICBAS)University of Porto (ICBAS-UP)PortoPortugal
  10. 10.Department of Veterinary Sciences, CECAV—Veterinary and Animal Research CentreUniversity of Trás-os-Montes and Alto Douro (UTAD)Vila RealPortugal

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