Genome-Wide Interaction Analysis of Genetic Variants With Menopausal Hormone Therapy for Colorectal Cancer Risk
- PMID: 35512400
- PMCID: PMC9360460
- DOI: 10.1093/jnci/djac094
Genome-Wide Interaction Analysis of Genetic Variants With Menopausal Hormone Therapy for Colorectal Cancer Risk
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.
© The Author(s) 2022. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com.
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References
-
- Lin KJ, Cheung WY, Lai JY-C, Giovannucci EL.. The effect of estrogen vs. combined estrogen-progestogen therapy on the risk of colorectal cancer. Int J Cancer. 2012;130(2):419-430. - PubMed
-
- Mørch LS, Lidegaard Ø, Keiding N, Løkkegaard E, Kjær SK.. The influence of hormone therapies on colon and rectal cancer. Eur J Epidemiol. 2016;31(5):481-489. - PubMed
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- MR/M012190/1/MRC_/Medical Research Council/United Kingdom
- P30 CA015704/CA/NCI NIH HHS/United States
- S10 OD028685/OD/NIH HHS/United States
- U01 CA137088/CA/NCI NIH HHS/United States
- R01 CA189184/CA/NCI NIH HHS/United States
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- HHSN268201200008C/HL/NHLBI NIH HHS/United States
- 14136/CRUK_/Cancer Research UK/United Kingdom
- R01 CA207371/CA/NCI NIH HHS/United States
- P01 CA196569/CA/NCI NIH HHS/United States
- 19167/CRUK_/Cancer Research UK/United Kingdom
- U01 CA167551/CA/NCI NIH HHS/United States
- HHSN268201200008I/HL/NHLBI NIH HHS/United States
- 001/WHO_/World Health Organization/International