학술논문

CYP19A1 fine-mapping and Mendelian randomization: estradiol is causal for endometrial cancer
Document Type
article
Source
Endocrine Related Cancer. 23(2)
Subject
Uterine Cancer
Genetics
Cancer
Prevention
Aging
Human Genome
2.1 Biological and endogenous factors
Aetiology
Age Factors
Alleles
Aromatase
Body Mass Index
Case-Control Studies
Endometrial Neoplasms
Estradiol
Female
Gene-Environment Interaction
Genetic Association Studies
Genetic Predisposition to Disease
Genotype
Humans
Phenotype
Polymorphism
Single Nucleotide
endometrial cancer
CYP19A1
estradiol
Australian National Endometrial Cancer Study Group
National Study of Endometrial Cancer Genetics Group
for RENDOCAS
AOCS Group
Biological Sciences
Medical and Health Sciences
Oncology & Carcinogenesis
Language
Abstract
Candidate gene studies have reported CYP19A1 variants to be associated with endometrial cancer and with estradiol (E2) concentrations. We analyzed 2937 single nucleotide polymorphisms (SNPs) in 6608 endometrial cancer cases and 37 925 controls and report the first genome wide-significant association between endometrial cancer and a CYP19A1 SNP (rs727479 in intron 2, P=4.8×10(-11)). SNP rs727479 was also among those most strongly associated with circulating E2 concentrations in 2767 post-menopausal controls (P=7.4×10(-8)). The observed endometrial cancer odds ratio per rs727479 A-allele (1.15, CI=1.11-1.21) is compatible with that predicted by the observed effect on E2 concentrations (1.09, CI=1.03-1.21), consistent with the hypothesis that endometrial cancer risk is driven by E2. From 28 candidate-causal SNPs, 12 co-located with three putative gene-regulatory elements and their risk alleles associated with higher CYP19A1 expression in bioinformatical analyses. For both phenotypes, the associations with rs727479 were stronger among women with a higher BMI (Pinteraction=0.034 and 0.066 respectively), suggesting a biologically plausible gene-environment interaction.