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Characterization of the association between 8q24 and colon cancer: Gene-environment exploration and meta-analysis

Hutter, CM and Slattery, ML and Duggan, DJ and Muehling, J and Curtin, K and Hsu, L and Beresford, SAA and Rajkovic, A and Sarto, GE and Marshall, JR and Hammad, N and Wallace, R and Makar, KW and Prentice, RL and Caan, BJ and Potter, JD and Peters, U (2010) Characterization of the association between 8q24 and colon cancer: Gene-environment exploration and meta-analysis. BMC Cancer, 10.

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Background: Genome-wide association studies and subsequent replication studies have shown that single nucleotide polymorphisms (SNPs) in the chromosomal region 8q24 are associated with colorectal cancer susceptibility.Methods: We examined 11 SNP markers in the 8q24 region between 128.47 and 128.54 Mb, using a total of 1,987 colon cases and 2,339 controls who self-reported as white from two independent, well-characterized study populations. Analysis was performed separately within each study, and combined using random effects meta-analysis. Logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (95% CIs) and to test for effect modification by known colon cancer risk factors. We also performed a meta-analysis combining our results with previous studies.Results: We observed evidence of association for four SNPs in low to high linkage disequilibrium (r2 ranging from 0.18 to 0.93) localized in a 16.2 kb region defined by rs10505477 and rs1056368. The combined results for our two studies of colon cancer showed an OR of 1.10 (95% CI: 1.01-1.20, Ptrend = 0.023), and a meta-analysis of our results with previously reported studies of colon and colorectal cancer strongly support the association for this SNP (combined OR for rs6983267 = 1.21, 95% CI: 1.18-1.24, p = 5.5 × 10-44). We did not observe any notable evidence of effect modification by known colon cancer risk factors, and risk did not differ significantly by tumor site or stage.Conclusions: Our study confirms the association between polymorphisms on chromosome 8q24 and colon cancer risk and suggests that the susceptibility locus in region 8q24 is not strongly modified by various lifestyle, environmental, and demographic risk factors for colon cancer. © 2010 Hutter et al; licensee BioMed Central Ltd.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Hutter, CM
Slattery, ML
Duggan, DJ
Muehling, J
Curtin, K
Hsu, L
Beresford, SAA
Rajkovic, Aalr110@pitt.eduALR110
Sarto, GE
Marshall, JR
Hammad, N
Wallace, R
Makar, KW
Prentice, RL
Caan, BJ
Potter, JD
Peters, U
Date: 4 December 2010
Date Type: Publication
Journal or Publication Title: BMC Cancer
Volume: 10
DOI or Unique Handle: 10.1186/1471-2407-10-670
Schools and Programs: School of Medicine > Obstetrics, Gynecology, and Reproductive Sciences
Refereed: Yes
Date Deposited: 16 Nov 2016 16:06
Last Modified: 22 Jun 2021 16:55


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