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The interaction between smoking and bladder cancer genetic variants on urothelial cancer risk by disease aggressiveness

Teleka, Stanley LU ; Jochems, Sylvia H.J. LU ; Jirström, Karin LU orcid and Stocks, Tanja LU (2022) In Cancer Medicine 11(15). p.2896-2905
Abstract

Background: Smoking has shown interactions with bladder cancer (BC) genetic variants, especially N-acetyltransferase-2 (NAT2), a tobacco smoke metabolism gene, on BC risk. The interactions by disease aggressiveness are unknown. Methods: We investigated the interaction between smoking and 18 single nucleotide polymorphisms (SNPs) for BC, individually and in a genetic risk score (GRS), on urothelial cancer (UC) risk including BC. We analysed data from 25,453 individuals with 520 incident UCs during follow-up, 339 non-aggressive (non-fatal, non-muscle invasive) and 163 aggressive (all other) UCs. Hazard ratios (HRs), absolute risks and additive and multiplicative interactions for two-by-two combinations of never/ever smoking with low/high... (More)

Background: Smoking has shown interactions with bladder cancer (BC) genetic variants, especially N-acetyltransferase-2 (NAT2), a tobacco smoke metabolism gene, on BC risk. The interactions by disease aggressiveness are unknown. Methods: We investigated the interaction between smoking and 18 single nucleotide polymorphisms (SNPs) for BC, individually and in a genetic risk score (GRS), on urothelial cancer (UC) risk including BC. We analysed data from 25,453 individuals with 520 incident UCs during follow-up, 339 non-aggressive (non-fatal, non-muscle invasive) and 163 aggressive (all other) UCs. Hazard ratios (HRs), absolute risks and additive and multiplicative interactions for two-by-two combinations of never/ever smoking with low/high genetic risk were calculated. Results: Smoking and NAT2 rs1495741 interacted strongly, positively on aggressive UC on both the multiplicative (p = 0.004) and additive (p = 0.0002) scale, which was not observed for non-aggressive UC (pinteractions ≥ 0.6). This manifested in a higher HR of aggressive UC by ever smoking for the slow acetylation NAT2 genotype (HR, 5.00 [95% confidence interval, 2.67–9.38]) than for intermediate/fast acetylation NAT2 (HR, 1.50 [0.83–2.71]), and in differences in absolute risks by smoking and NAT2 genotype. Smoking also interacted additively and positively with the GRS on any UC (p = 0.01) and non-aggressive UC (p = 0.02), but not on aggressive UC (p = 0.1). Gene-smoking interactions of lesser magnitude than for NAT2 were found for SNPs in APOBEC3A, SLC14A1 and MYNN. Conclusions: This study suggests that smoking increases UC risk more than expected when combined with certain genetic risks. Individuals with the slow acetylation NAT2 variant might particularly benefit from smoking intervention to prevent lethal UC; however, replication in larger studies is needed.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
cohort study, genetic risk, interaction, smoking, urothelial cancer
in
Cancer Medicine
volume
11
issue
15
pages
10 pages
publisher
Wiley-Blackwell
external identifiers
  • pmid:35285182
  • scopus:85126109678
ISSN
2045-7634
DOI
10.1002/cam4.4654
language
English
LU publication?
yes
id
4696be54-38a3-4251-9b3f-41babbd560cc
date added to LUP
2022-12-27 14:07:36
date last changed
2024-06-13 22:13:28
@article{4696be54-38a3-4251-9b3f-41babbd560cc,
  abstract     = {{<p>Background: Smoking has shown interactions with bladder cancer (BC) genetic variants, especially N-acetyltransferase-2 (NAT2), a tobacco smoke metabolism gene, on BC risk. The interactions by disease aggressiveness are unknown. Methods: We investigated the interaction between smoking and 18 single nucleotide polymorphisms (SNPs) for BC, individually and in a genetic risk score (GRS), on urothelial cancer (UC) risk including BC. We analysed data from 25,453 individuals with 520 incident UCs during follow-up, 339 non-aggressive (non-fatal, non-muscle invasive) and 163 aggressive (all other) UCs. Hazard ratios (HRs), absolute risks and additive and multiplicative interactions for two-by-two combinations of never/ever smoking with low/high genetic risk were calculated. Results: Smoking and NAT2 rs1495741 interacted strongly, positively on aggressive UC on both the multiplicative (p = 0.004) and additive (p = 0.0002) scale, which was not observed for non-aggressive UC (p<sub>interactions</sub> ≥ 0.6). This manifested in a higher HR of aggressive UC by ever smoking for the slow acetylation NAT2 genotype (HR, 5.00 [95% confidence interval, 2.67–9.38]) than for intermediate/fast acetylation NAT2 (HR, 1.50 [0.83–2.71]), and in differences in absolute risks by smoking and NAT2 genotype. Smoking also interacted additively and positively with the GRS on any UC (p = 0.01) and non-aggressive UC (p = 0.02), but not on aggressive UC (p = 0.1). Gene-smoking interactions of lesser magnitude than for NAT2 were found for SNPs in APOBEC3A, SLC14A1 and MYNN. Conclusions: This study suggests that smoking increases UC risk more than expected when combined with certain genetic risks. Individuals with the slow acetylation NAT2 variant might particularly benefit from smoking intervention to prevent lethal UC; however, replication in larger studies is needed.</p>}},
  author       = {{Teleka, Stanley and Jochems, Sylvia H.J. and Jirström, Karin and Stocks, Tanja}},
  issn         = {{2045-7634}},
  keywords     = {{cohort study; genetic risk; interaction; smoking; urothelial cancer}},
  language     = {{eng}},
  number       = {{15}},
  pages        = {{2896--2905}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Cancer Medicine}},
  title        = {{The interaction between smoking and bladder cancer genetic variants on urothelial cancer risk by disease aggressiveness}},
  url          = {{http://dx.doi.org/10.1002/cam4.4654}},
  doi          = {{10.1002/cam4.4654}},
  volume       = {{11}},
  year         = {{2022}},
}