Genetic predictors of circulating 25-hydroxyvitamin d and risk of colorectal cancer

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Affiliation

¹ Authors' Affiliations: Program in Molecular and Genetic Epidemiology, Department of Epidemiology, Departments of Nutrition, and Biostatistics, Harvard School of Public Health; Department of Medicine, and Channing Division of Network Medicine, Brigham and Women's Hospital; Division of Gastroenterology, Massachusetts General Hospital; Department of Medicine, Harvard Medical School; Gastrointestinal Malignancy Program, and Medical-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Public Health Sciences Division, Fred Hutchinson Cancer Research Center; Department of Epidemiology, University of Washington School of Public Health, Seattle, Washington; Division of Gastroenterology and Hepatology, University of North Carolina School of Medicine, Chapel Hill, North Carolina; Divisions of Cancer Epidemiology and Genetics, and Cancer Control and Population Sciences, National Cancer Institute, NIH, Bethesda; University of Maryland, School of Medicine, Baltimore, Maryland; Service de Génétique Médicale, CHU Nantes, Nantes, France; Divisions of Clinical Epidemiology and Aging Research and Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany; Division of Research, Kaiser Permanente Medical Care Program, Oakland; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; Translational Genomics Research Institute, Phoenix, Arizona; Department of Surgery, Toronto General Hospital; Ontario Institute for Cancer Research; Departments of Medical Biophysics and Molecular Genetics, University of Toronto, Toronto; Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada; Department of Environmental Medicine, Division of Epidemiology, New York University School of Medicine, New York; Department of Social and Preventive Medicine, University of Buffalo, Buffalo, New York; Melborne School of Population Health, The University of Melbourne, Melbourne, Victoria, Australia; Epidemiology Pro

PMID: 23983240
PMCID: PMC3818310
DOI: 10.1158/1055-9965.EPI-13-0209

Genetic predictors of circulating 25-hydroxyvitamin d and risk of colorectal cancer

Linda T Hiraki et al. Cancer Epidemiol Biomarkers Prev. 2013 Nov.

. 2013 Nov;22(11):2037-46.

doi: 10.1158/1055-9965.EPI-13-0209. Epub 2013 Aug 27.

Authors

Affiliation

¹ Authors' Affiliations: Program in Molecular and Genetic Epidemiology, Department of Epidemiology, Departments of Nutrition, and Biostatistics, Harvard School of Public Health; Department of Medicine, and Channing Division of Network Medicine, Brigham and Women's Hospital; Division of Gastroenterology, Massachusetts General Hospital; Department of Medicine, Harvard Medical School; Gastrointestinal Malignancy Program, and Medical-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Public Health Sciences Division, Fred Hutchinson Cancer Research Center; Department of Epidemiology, University of Washington School of Public Health, Seattle, Washington; Division of Gastroenterology and Hepatology, University of North Carolina School of Medicine, Chapel Hill, North Carolina; Divisions of Cancer Epidemiology and Genetics, and Cancer Control and Population Sciences, National Cancer Institute, NIH, Bethesda; University of Maryland, School of Medicine, Baltimore, Maryland; Service de Génétique Médicale, CHU Nantes, Nantes, France; Divisions of Clinical Epidemiology and Aging Research and Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany; Division of Research, Kaiser Permanente Medical Care Program, Oakland; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; Translational Genomics Research Institute, Phoenix, Arizona; Department of Surgery, Toronto General Hospital; Ontario Institute for Cancer Research; Departments of Medical Biophysics and Molecular Genetics, University of Toronto, Toronto; Faculty of Medicine, The University of Ottawa, Ottawa, Ontario, Canada; Department of Environmental Medicine, Division of Epidemiology, New York University School of Medicine, New York; Department of Social and Preventive Medicine, University of Buffalo, Buffalo, New York; Melborne School of Population Health, The University of Melbourne, Melbourne, Victoria, Australia; Epidemiology Pro

PMID: 23983240
PMCID: PMC3818310
DOI: 10.1158/1055-9965.EPI-13-0209

Abstract

Background: Experimental evidence has demonstrated an antineoplastic role for vitamin D in the colon, and higher circulating 25-hydroxyvitamin D [25(OH)D] levels are consistently associated with a lower risk of colorectal cancer. Genome-wide association studies have identified loci associated with levels of circulating 25(OH)D. The identified single-nucleotide polymorphisms (SNPs) from four gene regions collectively explain approximately 5% of the variance in circulating 25(OH)D.

Methods: We investigated whether five polymorphisms in GC, CYP2R1, CYP24A1, and DHCR7/NADSYN1, genes previously shown to be associated with circulating 25(OH)D levels, were associated with colorectal cancer risk in 10,061 cases and 12,768 controls drawn from 13 studies included in the Genetics and Epidemiology of Colorectal Cancer Consortium (GECCO) and Colon Cancer Family Registry (CCFR). We conducted a meta-analysis of crude and multivariate-adjusted logistic regression models to calculate odds ratios and associated confidence intervals for SNPs individually, SNPs simultaneously, and for a vitamin D additive genetic risk score (GRS).

Results: We did not observe a statistically significant association between the 25(OH)D-associated SNPs and colorectal cancer marginally, conditionally, or as a GRS, or for colon or rectal cancer separately.

Conclusions: Our findings do not support an association between SNPs associated with circulating 25(OH)D and risk of colorectal cancer. Additional work is warranted to investigate the complex relationship between 25(OH)D and colorectal cancer risk.

Impact: There was no association observed between genetic markers of circulating 25(OH)D and colorectal cancer. These genetic markers account for a small proportion of the variance in 25(OH)D.

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Conflict of interest statement

The authors have no conflicts of interest to disclose.

Figures

**Figure 1. Forest plot of the genetic risk score and CRC for individual studies and meta-analysis of all studies (allelic OR, 95% CI)**

See this image and copyright information in PMC

References

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Genetic predictors of circulating 25-hydroxyvitamin d and risk of colorectal cancer

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Genetic predictors of circulating 25-hydroxyvitamin d and risk of colorectal cancer

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Conflict of interest statement

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