Cited by 247Inflammasome and immune disordersImmune Response and InflammationNF-κB Signaling Pathways

The linear ubiquitin assembly complex (LUBAC) is essential for NLRP3 inflammasome activation

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Rodgers, Mary A., Bowman, James W., Fujita, Hiroaki, Orazio, Nicole, Shi, Mude, Liang, Qiming, Amatya, Rina, Kelly, Thomas J. +3 more·2014·Journal of Experimental Medicine

Abstract

Linear ubiquitination is a newly discovered posttranslational modification that is currently restricted to a small number of known protein substrates. The linear ubiquitination assembly complex (LUBAC), consisting of HOIL-1L, HOIP, and Sharpin, has been reported to activate NF-κB–mediated transcription in response to receptor signaling by ligating linear ubiquitin chains to Nemo and Rip1. Despite recent advances, the detailed roles of LUBAC in immune cells remain elusive. We demonstrate a novel HOIL-1L function as an essential regulator of the activation of the NLRP3/ASC inflammasome in primary bone marrow–derived macrophages (BMDMs) independently of NF-κB activation. Mechanistically, HOIL-1L is required for assembly of the NLRP3/ASC inflammasome and the linear ubiquitination of ASC, which we identify as a novel LUBAC substrate. Consequently, we find that HOIL-1L−/− mice have reduced IL-1β secretion in response to in vivo NLRP3 stimulation and survive lethal challenge with LPS. Together, these data demonstrate that linear ubiquitination is required for NLRP3 inflammasome activation, defining the molecular events of NLRP3 inflammasome activation and expanding the role of LUBAC as an innate immune regulator. Furthermore, our observation is clinically relevant because patients lacking HOIL-1L expression suffer from pyogenic bacterial immunodeficiency, providing a potential new therapeutic target for enhancing inflammation in immunodeficient patients.

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Authors
Rodgers, M. A., Bowman, J. W., Fujita, H., Orazio, N., Shi, M., Liang, Q., Amatya, R., Kelly, T. J., Iwai, K., Ting, J., & Jung, J. U.
Affiliations
  • University of Southern California (US)
  • Kyoto University (JP)
  • Department of Molecular and Cellular Physiology, Graduate School of Medicine, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan 2
  • University of North Carolina at Chapel Hill (US)
Corresponding author
Jung, Jae U.
Venue
Journal of Experimental Medicine
Published
2014-06-23
Volume
211
Issue
7
Pages
1333-1347
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2139206194
Cited by
247
References
62
Citations by year
2026: 10 · 2025: 10 · 2024: 14 · 2023: 20 · 2022: 17 · 2021: 23 · 2020: 18 · 2019: 22 · 2018: 22 · 2017: 29 · 2016: 31 · 2015: 27 · 2014: 4
FWCI
12.43
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Experimental Medicine (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
  • National Institutes of Health (1s10rr022508-01a1, 1f32ai096698-01)
  • Japan Society for the Promotion of Science (24112002)
  • National Heart, Lung, and Blood Institute (HL110609, R01HL110609)
  • National Cancer Institute (R01CA156330, CA180779, CA082057, P01CA180779, CA-31363, R01CA082057, CA115284, CA156330, R01CA031363, R01CA115284)
  • National Institute of Allergy and Infectious Diseases (AI073099, 1F32AI096698, R01AI073099, R37AI029564, F32-AI096698, U19AI083025, R56AI029564, AI083025, AI029564, R01AI029564)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK048522)
  • National Center for Research Resources (S10-RR022508)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
LUBAC, linear ubiquitination, NLRP3 inflammasome, ASC, HOIL-1L, macrophages, IL-1β secretion, innate immunity, post-translational modification
MeSH terms
NLR Family, Pyrin Domain-Containing 3 Protein, Animals, Carrier Proteins, Humans, Immunity, Innate, Lipopolysaccharides, Macrophages, NF-kappa B, Common Variable Immunodeficiency, Mice, Knockout, GTPase-Activating Proteins, Ubiquitin-Protein Ligases, Multiprotein Complexes, Intracellular Signaling Peptides and Proteins, Mice, Interleukin-1beta, Ubiquitination, Inflammasomes

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