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. 2019 May 1;144(9):2192-2205.
doi: 10.1002/ijc.32029. Epub 2019 Jan 20.

A comprehensive gene-environment interaction analysis in Ovarian Cancer using genome-wide significant common variants

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A comprehensive gene-environment interaction analysis in Ovarian Cancer using genome-wide significant common variants

Sehee Kim et al. Int J Cancer. .

Abstract

As a follow-up to genome-wide association analysis of common variants associated with ovarian carcinoma (cancer), our study considers seven well-known ovarian cancer risk factors and their interactions with 28 genome-wide significant common genetic variants. The interaction analyses were based on data from 9971 ovarian cancer cases and 15,566 controls from 17 case-control studies. Likelihood ratio and Wald tests for multiplicative interaction and for relative excess risk due to additive interaction were used. The top multiplicative interaction was noted between oral contraceptive pill (OCP) use (ever vs. never) and rs13255292 (p value = 3.48 × 10-4 ). Among women with the TT genotype for this variant, the odds ratio for OCP use was 0.53 (95% CI = 0.46-0.60) compared to 0.71 (95%CI = 0.66-0.77) for women with the CC genotype. When stratified by duration of OCP use, women with 1-5 years of OCP use exhibited differential protective benefit across genotypes. However, no interaction on either the multiplicative or additive scale was found to be statistically significant after multiple testing correction. The results suggest that OCP use may offer increased benefit for women who are carriers of the T allele in rs13255292. On the other hand, for women carrying the C allele in this variant, longer (5+ years) use of OCP may reduce the impact of carrying the risk allele of this SNP. Replication of this finding is needed. The study presents a comprehensive analytic framework for conducting gene-environment analysis in ovarian cancer.

Keywords: G × E; additive interaction; genetics; ovarian cancer.

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Figures

Figure 1A–1C.
Figure 1A–1C.
ORs of oral contraceptive (OCP) use, marginally, or stratified by number of risk allele of rs13255292. The ORs were calculated from a logistic regression model assuming log-additive effect of SNPs. (A) OR of OCP (ever vs never) (B) OR of 1 to 5 years of OCP use (vs < 1 year) (B) OR of more than 5 years of OCP use (vs < 1 year).
Figure 2A–2C.
Figure 2A–2C.
Estimated absolute risk (AR) of ovarian cancer given OCP use and number of copies of C allele, among non-Hispanic white college graduates aged below 50 with no family history of ovarian cancer, BMI below 25, no tubal ligation, no endometriosis, with one child. The ARs were calculated from a logistic regression model assuming log-additive effect of SNPs while all covariates fixed at their most frequent level as described above. (A) ARs stratified by OCP (ever vs never) and genotype (B) ARs stratified by 1 to 5 years of OCP use (vs < 1 year) and genotype (F) ARs stratified by more than 5 years of OCP use (vs < 1 year) and genotype. Risk differences were also reported as the solid black bar.

References

    1. Society AC. Cancer Facts & Figures 2017. American Cancer Society; 2017.
    1. Jacobs IJ, Menon U, Ryan A, Gentry-Maharaj A, Burnell M, Kalsi JK, Amso NN, Apostolidou S, Benjamin E, Cruickshank D, Crump DN, Davies SK, et al. Ovarian cancer screening and mortality in the UK Collaborative Trial of Ovarian Cancer Screening (UKCTOCS): a randomised controlled trial. Lancet (London, England) 2016;387:945–56. - PMC - PubMed
    1. Pearce CL, Rossing MA, Lee AW, Ness RB, Webb PM, for Australian Cancer S, Australian Ovarian Cancer Study G, Chenevix-Trench G, Jordan SM, Stram DA, Chang-Claude J, Hein R, et al. Combined and interactive effects of environmental and GWAS-identified risk factors in ovarian cancer. Cancer Epidemiol Biomarkers Prev 2013;22:880–90. - PMC - PubMed
    1. Trabert B, Ness RB, Lo-Ciganic WH, Murphy MA, Goode EL, Poole EM, Brinton LA, Webb PM, Nagle CM, Jordan SJ, Australian Ovarian Cancer Study Group ACS, Risch HA, et al. Aspirin, nonaspirin nonsteroidal anti-inflammatory drug, and acetaminophen use and risk of invasive epithelial ovarian cancer: a pooled analysis in the Ovarian Cancer Association Consortium. J Natl Cancer Inst 2014;106:djt431. - PMC - PubMed
    1. Sieh W, Salvador S, McGuire V, Weber RP, Terry KL, Rossing MA, Risch H, Wu AH, Webb PM, Moysich K, Doherty JA, Felberg A, et al. Tubal ligation and risk of ovarian cancer subtypes: a pooled analysis of case-control studies. Int J Epidemiol 2013;42:579–89. - PMC - PubMed

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