Document Details

Document Type : Article In Journal 
Document Title :
Investigation of gene-environment interactions between 47 newly identified breast cancer susceptibility loci and environmental risk factors
Investigation of gene-environment interactions between 47 newly identified breast cancer susceptibility loci and environmental risk factors
 
Document Language : English 
Abstract : A large genotyping project within the Breast Cancer Association Consortium (BCAC) recently identified 41 associations between single nucleotide polymorphisms (SNPs) and overall breast cancer (BC) risk. We investigated whether the effects of these 41 SNPs, as well as six SNPs associated with estrogen receptor (ER) negative BC risk are modified by 13 environmental risk factors for BC. Data from 22 studies participating in BCAC were pooled, comprising up to 26,633 cases and 30,119 controls. Interactions between SNPs and environmental factors were evaluated using an empirical Bayes-type shrinkage estimator. Six SNPs showed interactions with associated p-values (pint ) <1.1 × 10(-3) . None of the observed interactions was significant after accounting for multiple testing. The Bayesian False Discovery Probability was used to rank the findings, which indicated three interactions as being noteworthy at 1% prior probability of interaction. SNP rs6828523 was associated with increased ER-negative BC risk in women ≥170 cm (OR = 1.22, p = 0.017), but inversely associated with ER-negative BC risk in women <160 cm (OR = 0.83, p = 0.039, pint = 1.9 × 10(-4) ). The inverse association between rs4808801 and overall BC risk was stronger for women who had had four or more pregnancies (OR = 0.85, p = 2.0 × 10(-4) ), and absent in women who had had just one (OR = 0.96, p = 0.19, pint = 6.1 × 10(-4) ). SNP rs11242675 was inversely associated with overall BC risk in never/former smokers (OR = 0.93, p = 2.8 × 10(-5) ), but no association was observed in current smokers (OR = 1.07, p = 0.14, pint = 3.4 × 10(-4) ). In conclusion, recently identified BC susceptibility loci are not strongly modified by established risk factors and the observed potential interactions require confirmation in independent studies 
ISSN : 1097-0215 
Journal Name : Int J Cancer 
Volume : 136 
Issue Number : 6 
Publishing Year : 1436 AH
2015 AD
 
Article Type : Article 
Added Date : Wednesday, April 27, 2016 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Anja RudolphRudolph, Anja Investigator  
Roger L. MilneMilne, Roger L.Researcher  
Thérèse TruongTruong, Thérèse Researcher  
Julia A. KnightKnight, Julia A.Researcher  
Petra SeiboldSeibold, Petra Researcher  
Dieter Flesch-JanysFlesch-Janys, Dieter Researcher  
Angel CarracedoCarracedo, Angel Researcher  

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