Cited by 790Inflammasome and immune disordersImmune Response and InflammationAutoimmune and Inflammatory Disorders Research

The NLRP3 inflammasome is released as a particulate danger signal that amplifies the inflammatory response

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Baroja-Mazo, Alberto, Martín-Sánchez, Fatima, Gomez, Ana I, Martínez, Carlos M, Amores-Iniesta, Joaquín, Compan, Vincent, Barberà-Cremades, Maria, Yagüe, Jordi +7 more·2014·Nature Immunology

Abstract

Assembly of the NLRP3 inflammasome activates caspase-1 and mediates the processing and release of the leaderless cytokine IL-1β and thereby serves a central role in the inflammatory response and in diverse human diseases. Here we found that upon activation of caspase-1, oligomeric NLRP3 inflammasome particles were released from macrophages. Recombinant oligomeric protein particles composed of the adaptor ASC or the p.D303N mutant form of NLRP3 associated with cryopyrin-associated periodic syndromes (CAPS) stimulated further activation of caspase-1 extracellularly, as well as intracellularly after phagocytosis by surrounding macrophages. We found oligomeric ASC particles in the serum of patients with active CAPS but not in that of patients with other inherited autoinflammatory diseases. Our findings support a model whereby the NLRP3 inflammasome, acting as an extracellular oligomeric complex, amplifies the inflammatory response.

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Crossref · 10.1038/ni.2919

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Authors
Baroja-Mazo, A., Martín-Sánchez, F., Gomez, A. I., Martínez, C. M., Amores-Iniesta, J., Compan, V., Barberà-Cremades, M., Yagüe, J., Ruiz-Ortiz, E., Antón, J., Buján, S., Couillin, I., Brough, D., Arostegui, J. I., & Pelegrín, P.
Affiliations
  • Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (ES)
  • University of Manchester (GB)
  • Hospital Clínic de Barcelona (ES)
  • Hospital Sant Joan de Déu Barcelona (ES)
  • Vall d'Hebron Hospital Universitari (ES)
  • Université d'Orléans (FR)
Venue
Nature Immunology
Published
2014-06-22
Volume
15
Issue
8
Pages
738-748
ISSN
  • 1529-2908 (ISSN-L)
  • 1529-2916
OpenAlex
W2143119237
Cited by
790
References
50
Citations by year
2026: 28 · 2025: 39 · 2024: 41 · 2023: 63 · 2022: 81 · 2021: 84 · 2020: 86 · 2019: 68 · 2018: 74 · 2017: 88 · 2016: 60 · 2015: 57 · 2014: 20
FWCI
30.77
Type
journal article
Language
en
Open access
Licence
Locations
  • Nature Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Hispana (publishedVersion, cc-by-nc-nd)
  • Research Explorer (The University of Manchester) (submittedVersion)
Funders
Wellcome Trust
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Health Sciences › Medicine › Hematology › Autoimmune and Inflammatory Disorders Research
Keywords
NLRP3 inflammasome, caspase-1, IL-1β processing, cryopyrin-associated periodic syndromes, macrophages, autoinflammatory disease, phagocytosis
MeSH terms
NLR Family, Pyrin Domain-Containing 3 Protein, Animals, Carrier Proteins, Cells, Cultured, Cytoskeletal Proteins, Humans, Inflammation, Macrophages, Mice, Inbred C57BL, Phagocytosis, Signal Transduction, Mice, Knockout, Caspases, Caspase 1, Apoptosis Regulatory Proteins, Mice, CARD Signaling Adaptor Proteins, Caspases, Initiator, Interleukin-1beta, Cryopyrin-Associated Periodic Syndromes, HEK293 Cells, Inflammasomes

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