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. 2022 Aug 8;114(8):1135-1148.
doi: 10.1093/jnci/djac094.

Genome-Wide Interaction Analysis of Genetic Variants With Menopausal Hormone Therapy for Colorectal Cancer Risk

Yu Tian  1   2 Andre E Kim  3 Stephanie A Bien  4 Yi Lin  4 Conghui Qu  4 Tabitha A Harrison  4 Robert Carreras-Torres  5   6   7 Virginia Díez-Obrero  5   6   7 Niki Dimou  8 David A Drew  9   10 Akihisa Hidaka  4 Jeroen R Huyghe  4 Kristina M Jordahl  4   11 John Morrison  3 Neil Murphy  8 Mireia Obón-Santacana  5   6   7 Cornelia M Ulrich  12   13 Jennifer Ose  12   13 Anita R Peoples  12   13 Edward A Ruiz-Narvaez  14 Anna Shcherbina  15 Mariana C Stern  16 Yu-Ru Su  4   17 Franzel J B van Duijnhoven  18 Volker Arndt  19 James W Baurley  20   21 Sonja I Berndt  22 D Timothy Bishop  23 Hermann Brenner  19   24   25 Daniel D Buchanan  26   27   28 Andrew T Chan  9   10   29   30   31   32 Jane C Figueiredo  33   34 Steven Gallinger  35 Stephen B Gruber  16 Sophia Harlid  36 Michael Hoffmeister  19 Mark A Jenkins  37 Amit D Joshi  31 Temitope O Keku  38 Susanna C Larsson  39 Loic Le Marchand  40 Li Li  41 Graham G Giles  37   42   43 Roger L Milne  37   42   43 Hongmei Nan  44   45 Rami Nassir  46 Shuji Ogino  30   31   47   48 Arif Budiarto  20 Elizabeth A Platz  49 John D Potter  4   50 Ross L Prentice  4   51 Gad Rennert  52   53   54 Lori C Sakoda  4   55 Robert E Schoen  56 Martha L Slattery  57 Stephen N Thibodeau  58 Bethany Van Guelpen  36   59 Kala Visvanathan  49 Emily White  4   11 Alicja Wolk  39 Michael O Woods  60 Anna H Wu  34 Peter T Campbell  61 Graham Casey  62 David V Conti  16 Marc J Gunter  8 Anshul Kundaje  63   64 Juan Pablo Lewinger  3 Victor Moreno  5   6   7   65 Polly A Newcomb  4   11 Bens Pardamean  20 Duncan C Thomas  16 Konstantinos K Tsilidis  66   67 Ulrike Peters  4   11 W James Gauderman  16 Li Hsu  4   51 Jenny Chang-Claude  1   68
Affiliations

Genome-Wide Interaction Analysis of Genetic Variants With Menopausal Hormone Therapy for Colorectal Cancer Risk

Yu Tian et al. J Natl Cancer Inst. .

Abstract

Background: The use of menopausal hormone therapy (MHT) may interact with genetic variants to influence colorectal cancer (CRC) risk.

Methods: We conducted a genome-wide, gene-environment interaction between single nucleotide polymorphisms and the use of any MHT, estrogen only, and combined estrogen-progestogen therapy with CRC risk, among 28 486 postmenopausal women (11 519 CRC patients and 16 967 participants without CRC) from 38 studies, using logistic regression, 2-step method, and 2- or 3-degree-of-freedom joint test. A set-based score test was applied for rare genetic variants.

Results: The use of any MHT, estrogen only and estrogen-progestogen were associated with a reduced CRC risk (odds ratio [OR] = 0.71, 95% confidence interval [CI] = 0.64 to 0.78; OR = 0.65, 95% CI = 0.53 to 0.79; and OR = 0.73, 95% CI = 0.59 to 0.90, respectively). The 2-step method identified a statistically significant interaction between a GRIN2B variant rs117868593 and MHT use, whereby MHT-associated CRC risk was statistically significantly reduced in women with the GG genotype (OR = 0.68, 95% CI = 0.64 to 0.72) but not within strata of GC or CC genotypes. A statistically significant interaction between a DCBLD1 intronic variant at 6q22.1 (rs10782186) and MHT use was identified by the 2-degree-of-freedom joint test. The MHT-associated CRC risk was reduced with increasing number of rs10782186-C alleles, showing odds ratios of 0.78 (95% CI = 0.70 to 0.87) for TT, 0.68 (95% CI = 0.63 to 0.73) for TC, and 0.66 (95% CI = 0.60 to 0.74) for CC genotypes. In addition, 5 genes in rare variant analysis showed suggestive interactions with MHT (2-sided P < 1.2 × 10-4).

Conclusion: Genetic variants that modify the association between MHT and CRC risk were identified, offering new insights into pathways of CRC carcinogenesis and potential mechanisms involved.

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Figures

Figure 1.
Figure 1.
Association of any menopausal hormone therapy use with the risk of colorectal cancer. CI = confidence interval; OR = odds ratio.
Figure 2.
Figure 2.
Association of use of estrogen only with the risk of colorectal cancer. CI = confidence interval; OR = odds ratio.
Figure 3.
Figure 3.
Association of use of combined estrogen-progestogen with the risk of colorectal cancer. CI = confidence interval; OR = odds ratio.

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