Genetic marker polymorphisms on chromosome 8q24 and prostate cancer in the Dutch population: DG8S737 may not be the causative variant

Maurice P. Zeegers, Humera S. Khan, Leo J. Schouten, Boukje A.C. Van Dijk, R. Alexandra Goldbohm, Jack Schalken, Shahin Shajahan, Alexander Pearlman, Carole Oddoux, Piet A. Van Den Brandt, Harry Ostrer

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Prostate cancer is the most commonly diagnosed cancer in men in Europe and Northern America. Genome-wide association studies (GWAS) have detected an association with markers on chromosome 8q24. Allele-8 of microsatellite DG8S737 with 22 repeats and allele A of the single-nucleotide polymorphism (SNP) rs1447295 have been found to be significantly associated with prostate cancer. As GWAS are subjected to type 1 error, confirmation studies are required to validate the results. Here, we analysed the same markers in 277 cases and 282 controls from the Netherlands using a nested case-control study. Incident prostate cancer cases and controls selected were identified in the population of the Netherlands Cohort Study. We also investigated clinical features of the disease by stratifying by tumour stage. We did not replicate the association with the SNP rs1447295-A allele (P=0.10), although the effect estimate was in the same direction as previous studies (odds ratio (OR), 1.38). Interestingly a statistically significant decreased risk was observed for DG8S737 allele-8 (OR, 0.62; P=0.03). The apparent protective effect of the DG8S737-8 allele observed in this study contrasts with the Amundadottir study. This suggests that DG8S737 and rs1447295 might be tightly linked markers flanking the actual causative variant and that there may be potentially more than one high-risk haplotype present in the Caucasian population. This short report highlights the importance of validation, although further confirmation is still needed.

Original languageEnglish (US)
Pages (from-to)118-120
Number of pages3
JournalEuropean Journal of Human Genetics
Volume19
Issue number1
DOIs
StatePublished - Jan 2011

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

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