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. 2022 Apr 13;12(1):6199.
doi: 10.1038/s41598-022-10121-2.

Genome-wide interaction analysis of menopausal hormone therapy use and breast cancer risk among 62,370 women

Xiaoliang Wang  1   2 Pooja Middha Kapoor  3   4 Paul L Auer  5   6 Joe Dennis  7 Alison M Dunning  8 Qin Wang  7 Michael Lush  7 Kyriaki Michailidou  7   9   10 Manjeet K Bolla  7 Kristan J Aronson  11 Rachel A Murphy  12   13 Angela Brooks-Wilson  14   15 Derrick G Lee  13   16 Emilie Cordina-Duverger  17 Pascal Guénel  17 Thérèse Truong  17 Claire Mulot  18 Lauren R Teras  19 Alpa V Patel  19 Laure Dossus  20 Rudolf Kaaks  3 Reiner Hoppe  21   22 Wing-Yee Lo  21   22 Thomas Brüning  23 Ute Hamann  24 Kamila Czene  25 Marike Gabrielson  25 Per Hall  25   26 Mikael Eriksson  25 Audrey Jung  3 Heiko Becher  27 Fergus J Couch  28 Nicole L Larson  29 Janet E Olson  29 Kathryn J Ruddy  30 Graham G Giles  31   32   33 Robert J MacInnis  31   32 Melissa C Southey  31   33   34 Loic Le Marchand  35 Lynne R Wilkens  36 Christopher A Haiman  37 Håkan Olsson  38 Annelie Augustinsson  38 Ute Krüger  38 Philippe Wagner  38 Christopher Scott  29 Stacey J Winham  39 Celine M Vachon  40   41 Charles M Perou  40   41 Andrew F Olshan  42 Melissa A Troester  42 David J Hunter  43   44 Heather A Eliassen  44   45 Rulla M Tamimi  44   46 Kristen Brantley  45 Irene L Andrulis  47   48 Jonine Figueroa  49   50   51 Stephen J Chanock  51 Thomas U Ahearn  51 Montserrat García-Closas  51 Gareth D Evans  52   53 William G Newman  52   53 Elke M van Veen  52   53 Anthony Howell  54 Alicja Wolk  55   56 Niclas Håkansson  55 Hoda Anton-Culver  57 Argyrios Ziogas  57 Michael E Jones  58 Nick Orr  59 Minouk J Schoemaker  58 Anthony J Swerdlow  58   60 Cari M Kitahara  61 Martha Linet  61 Ross L Prentice  62 Douglas F Easton  7   8 Roger L Milne  31   32   33 Peter Kraft  44   63 Jenny Chang-Claude  3   64 Sara Lindström  65   62
Affiliations

Genome-wide interaction analysis of menopausal hormone therapy use and breast cancer risk among 62,370 women

Xiaoliang Wang et al. Sci Rep. .

Abstract

Use of menopausal hormone therapy (MHT) is associated with increased risk for breast cancer. However, the relevant mechanisms and its interaction with genetic variants are not fully understood. We conducted a genome-wide interaction analysis between MHT use and genetic variants for breast cancer risk in 27,585 cases and 34,785 controls from 26 observational studies. All women were post-menopausal and of European ancestry. Multivariable logistic regression models were used to test for multiplicative interactions between genetic variants and current MHT use. We considered interaction p-values < 5 × 10-8 as genome-wide significant, and p-values < 1 × 10-5 as suggestive. Linkage disequilibrium (LD)-based clumping was performed to identify independent candidate variants. None of the 9.7 million genetic variants tested for interactions with MHT use reached genome-wide significance. Only 213 variants, representing 18 independent loci, had p-values < 1 × 105. The strongest evidence was found for rs4674019 (p-value = 2.27 × 10-7), which showed genome-wide significant interaction (p-value = 3.8 × 10-8) with current MHT use when analysis was restricted to population-based studies only. Limiting the analyses to combined estrogen-progesterone MHT use only or to estrogen receptor (ER) positive cases did not identify any genome-wide significant evidence of interactions. In this large genome-wide SNP-MHT interaction study of breast cancer, we found no strong support for common genetic variants modifying the effect of MHT on breast cancer risk. These results suggest that common genetic variation has limited impact on the observed MHT-breast cancer risk association.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
Main effects of current menopausal hormone therapy use and breast cancer risk by study. (A) Current use of any menopausal hormone therapy. (B) Current use of combined estrogen–progesterone menopausal hormone therapy.
Figure 2
Figure 2
Manhattan plot of genome-wide interaction of current use of menopausal hormone therapy on breast cancer risk. (A) Current MHT use. (B) Current EPT use. Asterisk: red line: log-transformed genome-wide significant threshold at 5 × 10–8; blue line: log-transformed suggestive threshold at 1 × 10–5.

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