Cited by 492Inflammasome and immune disordersCell death mechanisms and regulationImmune Response and Inflammation

Inhibitor of Apoptosis Proteins Limit RIP3 Kinase-Dependent Interleukin-1 Activation

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Vince, James E., Wong, W. Wei-Lynn, Gentle, Ian, Lawlor, Kate E., Allam, Ramanjaneyulu, O'Reilly, Lorraine, Mason, Kylie, Gross, Olaf +7 more·2012·Immunity

Abstract

Interleukin-1β (IL-1β) is a potent inflammatory cytokine that is usually cleaved and activated by inflammasome-associated caspase-1. To determine whether IL-1β activation is regulated by inhibitor of apoptosis (IAP) proteins, we treated macrophages with an IAP-antagonist "Smac mimetic" compound or genetically deleted the genes that encode the three IAP family members cIAP1, cIAP2, and XIAP. After Toll-like receptor priming, IAP inhibition triggered cleavage of IL-1β that was mediated not only by the NLRP3-caspase-1 inflammasome, but also by caspase-8 in a caspase-1-independent manner. In the absence of IAPs, rapid and full generation of active IL-1β by the NLRP3-caspase-1 inflammasome, or by caspase-8, required the kinase RIP3 and reactive oxygen species production. These results demonstrate that activation of the cell death-inducing ripoptosome platform and RIP3 can generate bioactive IL-1β and implicate them as additional targets for the treatment of pathological IL-1-driven inflammatory responses.

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Crossref · 10.1016/j.immuni.2012.01.012

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  • Multiple components of molecular machinery for necroptosis-including ZBP1, RIPK3, MLKL, and TNFR1 (mainly via NF-κB)-impinge on control of inflammasome, a supramolecular platform for activation of CASP1 and consequent secretion of mature IL1B and IL18.

    “Importantly, multiple components of the molecular machinery for necroptosis—including ZBP1, RIPK3, MLKL, and TNFR1 (mainly via NF-κB)—impinge on the control of the so-called “inflammasome”, a supramolecular platform for the activation of CASP1 and consequent secretion of mature interleukin 1 beta (IL1B; best known as IL-1β) and IL18 [524–529].”

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Authors
Vince, J. E., Wong, W. W.-L., Gentle, I., Lawlor, K. E., Allam, R., O'Reilly, L., Mason, K., Gross, O., Ma, S., Guarda, G., Anderton, H., Castillo, R., Häcker, G., Silke, J., & Tschopp, J.
Affiliations
  • University of Lausanne (CH)
  • The University of Melbourne (AU)
  • University of Freiburg (DE)
Corresponding author
Vince, James E.
Venue
Immunity
Publisher
Elsevier BV
Published
2012-02
Volume
36
Issue
2
Pages
215-227
ISSN
1074-7613 (ISSN-L)
OpenAlex
W2087968540
Cited by
491
References
62
Citations by year
2026: 9 · 2025: 22 · 2024: 22 · 2023: 22 · 2022: 33 · 2021: 28 · 2020: 37 · 2019: 28 · 2018: 40 · 2017: 33 · 2016: 41 · 2015: 43 · 2014: 73 · 2013: 38 · 2012: 20
FWCI
22.39
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, other-oa)
  • IRIS (submittedVersion)
  • mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
  • Australian Government
  • State Government of Victoria
  • Deutsche Krebshilfe
  • National Health and Medical Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
inhibitor of apoptosis proteins, caspase-8, NLRP3 inflammasome, caspase-1, IAP antagonists, cIAP1, cIAP2, XIAP, ripoptosome, reactive oxygen species, macrophages, Toll-like receptors, inflammatory cytokines
MeSH terms
NLR Family, Pyrin Domain-Containing 3 Protein, Baculoviral IAP Repeat-Containing 3 Protein, Animals, Carrier Proteins, Macrophages, Apoptosis, Reactive Oxygen Species, Mice, Knockout, Molecular Mimicry, Caspase 1, Mitochondrial Proteins, Ubiquitin-Protein Ligases, Apoptosis Regulatory Proteins, Inhibitor of Apoptosis Proteins, Mice, X-Linked Inhibitor of Apoptosis Protein, Receptor-Interacting Protein Serine-Threonine Kinases, Interleukin-1beta, Inflammasomes

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