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Genetic variation in the vitamin d pathway in relation to risk of prostate cancer--results from the breast and prostate cancer cohort consortium.

ABSTRACT: BACKGROUND:Studies suggest that vitamin D status may be associated with prostate cancer risk although the direction and strength of this association differs between experimental and observational studies. Genome-wide association studies have identified genetic variants associated with 25-hydroxyvitamin D [25(OH)D] status. We examined prostate cancer risk in relation to single-nucleotide polymorphisms (SNP) in four genes shown to predict circulating levels of 25(OH)D. METHODS:SNP markers localized to each of four genes (GC, CYP24A1, CYP2R1, and DHCR7) previously associated with 25(OH)D were genotyped in 10,018 cases and 11,052 controls from the National Cancer Institute (NCI) Breast and Prostate Cancer Cohort Consortium. Logistic regression was used to estimate the individual and cumulative association between genetic variants and risk of overall and aggressive prostate cancer. RESULTS:We observed a decreased risk of aggressive prostate cancer among men with the allele in rs6013897 near CYP24A1 associated with lower serum 25(OH)D [per A allele, OR, 0.86; 95% confidence interval (CI), 0.80-0.93; Ptrend = 0.0002) but an increased risk for nonaggressive disease (per A allele: OR, 1.10; 95% CI, 1.04-1.17; Ptrend = 0.002). Examination of a polygenic score of the four SNPs revealed statistically significantly lower risk of aggressive prostate cancer among men with a greater number of low vitamin D alleles (OR for 6-8 vs. 0-1 alleles, 0.66; 95% CI, 0.44-0.98; Ptrend = 0.003). CONCLUSIONS:In this large, pooled analysis, genetic variants related to lower 25(OH)D levels were associated with a decreased risk of aggressive prostate cancer. IMPACT:Our genetic findings do not support a protective association between loci known to influence vitamin D levels and prostate cancer risk.

SUBMITTER: Mondul AM 

PROVIDER: S-EPMC3617077 | biostudies-literature | 2013 Apr

REPOSITORIES: biostudies-literature

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Genetic variation in the vitamin d pathway in relation to risk of prostate cancer--results from the breast and prostate cancer cohort consortium.

Mondul Alison M AM   Shui Irene M IM   Yu Kai K   Travis Ruth C RC   Stevens Victoria L VL   Campa Daniele D   Schumacher Frederick R FR   Ziegler Regina G RG   Bueno-de-Mesquita H Bas HB   Berndt Sonja S   Crawford E D ED   Gapstur Susan M SM   Gaziano J Michael JM   Giovannucci Edward E   Haiman Christopher A CA   Henderson Brian E BE   Hunter David J DJ   Johansson Mattias M   Key Timothy J TJ   Le Marchand Loïc L   Lindström Sara S   McCullough Marjorie L ML   Navarro Carmen C   Overvad Kim K   Palli Domenico D   Purdue Mark M   Stampfer Meir J MJ   Weinstein Stephanie J SJ   Willett Walter C WC   Yeager Meredith M   Chanock Stephen J SJ   Trichopoulos Dimitrios D   Kolonel Laurence N LN   Kraft Peter P   Albanes Demetrius D  

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 20130201 4

<h4>Background</h4>Studies suggest that vitamin D status may be associated with prostate cancer risk although the direction and strength of this association differs between experimental and observational studies. Genome-wide association studies have identified genetic variants associated with 25-hydroxyvitamin D [25(OH)D] status. We examined prostate cancer risk in relation to single-nucleotide polymorphisms (SNP) in four genes shown to predict circulating levels of 25(OH)D.<h4>Methods</h4>SNP m  ...[more]

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