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Genetically determined NLRP3 inflammasome activation associates with systemic inflammation and cardiovascular mortality

Schunk, Stefan J. ; Smith, J. Gustav LU and Speer, Thimoteus (2021) In European Heart Journal 42(18). p.1742-1756
Abstract
AIMS: Inflammation plays an important role in cardiovascular disease (CVD) development. The NOD-like receptor protein-3 (NLRP3) inflammasome contributes to the development of atherosclerosis in animal models. Components of the NLRP3 inflammasome pathway such as interleukin-1β can therapeutically be targeted. Associations of genetically determined inflammasome-mediated systemic inflammation with CVD and mortality in humans are unknown. METHODS AND RESULTS: We explored the association of genetic NLRP3 variants with prevalent CVD and cardiovascular mortality in 538 167 subjects on the individual participant level in an explorative gene-centric approach without performing multiple testing. Functional relevance of single-nucleotide... (More)
AIMS: Inflammation plays an important role in cardiovascular disease (CVD) development. The NOD-like receptor protein-3 (NLRP3) inflammasome contributes to the development of atherosclerosis in animal models. Components of the NLRP3 inflammasome pathway such as interleukin-1β can therapeutically be targeted. Associations of genetically determined inflammasome-mediated systemic inflammation with CVD and mortality in humans are unknown. METHODS AND RESULTS: We explored the association of genetic NLRP3 variants with prevalent CVD and cardiovascular mortality in 538 167 subjects on the individual participant level in an explorative gene-centric approach without performing multiple testing. Functional relevance of single-nucleotide polymorphisms on NLRP3 inflammasome activation has been evaluated in monocyte-enriched peripheral blood mononuclear cells (PBMCs). Genetic analyses identified the highly prevalent (minor allele frequency 39.9%) intronic NLRP3 variant rs10754555 to affect NLRP3 gene expression. rs10754555 carriers showed significantly higher C-reactive protein and serum amyloid A plasma levels. Carriers of the G allele showed higher NLRP3 inflammasome activation in isolated human PBMCs. In carriers of the rs10754555 variant, the prevalence of coronary artery disease was significantly higher as compared to non-carriers with a significant interaction between rs10754555 and age. Importantly, rs10754555 carriers had significantly higher risk for cardiovascular mortality during follow-up. Inflammasome inducers (e.g. urate, triglycerides, apolipoprotein C3) modulated the association between rs10754555 and mortality. CONCLUSION: The NLRP3 intronic variant rs10754555 is associated with increased systemic inflammation, inflammasome activation, prevalent coronary artery disease, and mortality. This study provides evidence for a substantial role of genetically driven systemic inflammation in CVD and highlights the NLRP3 inflammasome as a therapeutic target. Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2021. For permissions, please email: journals.permissions@oup.com. (Less)
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author
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publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cardiovascular diseases, Coronary artery disease, Inflammasome, Inflammation, NLRP3
in
European Heart Journal
volume
42
issue
18
pages
15 pages
publisher
Oxford University Press
external identifiers
  • scopus:85106539003
  • pmid:33748830
ISSN
1522-9645
DOI
10.1093/eurheartj/ehab107
language
English
LU publication?
yes
id
62a33c65-b1a0-4cef-a193-463b0e13dd9d
alternative location
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106539003&doi=10.1093%2feurheartj%2fehab107&partnerID=40&md5=62dd2fde089cce4a5c8b922dab9933b3
date added to LUP
2021-06-08 14:15:08
date last changed
2022-04-27 02:19:59
@article{62a33c65-b1a0-4cef-a193-463b0e13dd9d,
  abstract     = {{AIMS: Inflammation plays an important role in cardiovascular disease (CVD) development. The NOD-like receptor protein-3 (NLRP3) inflammasome contributes to the development of atherosclerosis in animal models. Components of the NLRP3 inflammasome pathway such as interleukin-1β can therapeutically be targeted. Associations of genetically determined inflammasome-mediated systemic inflammation with CVD and mortality in humans are unknown. METHODS AND RESULTS: We explored the association of genetic NLRP3 variants with prevalent CVD and cardiovascular mortality in 538 167 subjects on the individual participant level in an explorative gene-centric approach without performing multiple testing. Functional relevance of single-nucleotide polymorphisms on NLRP3 inflammasome activation has been evaluated in monocyte-enriched peripheral blood mononuclear cells (PBMCs). Genetic analyses identified the highly prevalent (minor allele frequency 39.9%) intronic NLRP3 variant rs10754555 to affect NLRP3 gene expression. rs10754555 carriers showed significantly higher C-reactive protein and serum amyloid A plasma levels. Carriers of the G allele showed higher NLRP3 inflammasome activation in isolated human PBMCs. In carriers of the rs10754555 variant, the prevalence of coronary artery disease was significantly higher as compared to non-carriers with a significant interaction between rs10754555 and age. Importantly, rs10754555 carriers had significantly higher risk for cardiovascular mortality during follow-up. Inflammasome inducers (e.g. urate, triglycerides, apolipoprotein C3) modulated the association between rs10754555 and mortality. CONCLUSION: The NLRP3 intronic variant rs10754555 is associated with increased systemic inflammation, inflammasome activation, prevalent coronary artery disease, and mortality. This study provides evidence for a substantial role of genetically driven systemic inflammation in CVD and highlights the NLRP3 inflammasome as a therapeutic target. Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2021. For permissions, please email: journals.permissions@oup.com.}},
  author       = {{Schunk, Stefan J. and Smith, J. Gustav and Speer, Thimoteus}},
  issn         = {{1522-9645}},
  keywords     = {{Cardiovascular diseases; Coronary artery disease; Inflammasome; Inflammation; NLRP3}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{18}},
  pages        = {{1742--1756}},
  publisher    = {{Oxford University Press}},
  series       = {{European Heart Journal}},
  title        = {{Genetically determined NLRP3 inflammasome activation associates with systemic inflammation and cardiovascular mortality}},
  url          = {{http://dx.doi.org/10.1093/eurheartj/ehab107}},
  doi          = {{10.1093/eurheartj/ehab107}},
  volume       = {{42}},
  year         = {{2021}},
}