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Hertens P, van Loo G. A20: a jack of all trades. Trends Cell Biol 2024; 34:360-362. [PMID: 38461099 DOI: 10.1016/j.tcb.2024.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 03/11/2024]
Abstract
Mutations and polymorphisms in A20/TNFAIP3 have been linked to various inflammatory disorders. However, in addition to its well-known role in inflammation, A20 also controls EDAR- and receptor activator of NF-κB (RANK)-induced NF-κB signaling, regulating the development of epidermal skin appendages and bone, respectively. Furthermore, A20 regulates synapse remodeling through a mechanism dependent on NF-κB.
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Affiliation(s)
- Pieter Hertens
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
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2
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Petta I, Thorp M, Ciers M, Blancke G, Boon L, Meese T, Van Nieuwerburgh F, Wullaert A, Grencis R, Elewaut D, van Loo G, Vereecke L. Myeloid A20 is critical for alternative macrophage polarization and type-2 immune-mediated helminth resistance. Front Immunol 2024; 15:1373745. [PMID: 38680500 PMCID: PMC11045979 DOI: 10.3389/fimmu.2024.1373745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 03/21/2024] [Indexed: 05/01/2024] Open
Abstract
Background Protective immunity against intestinal helminths requires induction of robust type-2 immunity orchestrated by various cellular and soluble effectors which promote goblet cell hyperplasia, mucus production, epithelial proliferation, and smooth muscle contractions to expel worms and re-establish immune homeostasis. Conversely, defects in type-2 immunity result in ineffective helminth clearance, persistent infection, and inflammation. Macrophages are highly plastic cells that acquire an alternatively activated state during helminth infection, but they were previously shown to be dispensable for resistance to Trichuris muris infection. Methods We use the in vivo mouse model A20myel-KO, characterized by the deletion of the potent anti-inflammatory factor A20 (TNFAIP3) specifically in the myeloid cells, the excessive type-1 cytokine production, and the development of spontaneous arthritis. We infect A20myel-KO mice with the gastrointestinal helminth Trichuris muris and we analyzed the innate and adaptive responses. We performed RNA sequencing on sorted myeloid cells to investigate the role of A20 on macrophage polarization and type-2 immunity. Moreover, we assess in A20myel-KO mice the pharmacological inhibition of type-1 cytokine pathways on helminth clearance and the infection with Salmonella typhimurium. Results We show that proper macrophage polarization is essential for helminth clearance, and we identify A20 as an essential myeloid factor for the induction of type-2 immune responses against Trichuris muris. A20myel-KO mice are characterized by persistent Trichuris muris infection and intestinal inflammation. Myeloid A20 deficiency induces strong classical macrophage polarization which impedes anti-helminth type-2 immune activation; however, it promotes detrimental Th1/Th17 responses. Antibody-mediated neutralization of the type-1 cytokines IFN-γ, IL-18, and IL-12 prevents myeloid-orchestrated Th1 polarization and re-establishes type-2-mediated protective immunity against T. muris in A20myel-KO mice. In contrast, the strong Th1-biased immunity in A20myel-KO mice offers protection against Salmonella typhimurium infection. Conclusions We hereby identify A20 as a critical myeloid factor for correct macrophage polarization and appropriate adaptive mucosal immunity in response to helminth and enteric bacterial infection.
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Affiliation(s)
- Ioanna Petta
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB Center for Inflammation Research, Ghent, Belgium
| | - Marie Thorp
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB Center for Inflammation Research, Ghent, Belgium
| | - Maarten Ciers
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB Center for Inflammation Research, Ghent, Belgium
| | - Gillian Blancke
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB Center for Inflammation Research, Ghent, Belgium
| | | | - Tim Meese
- Laboratory of Pharmaceutical Biotechnology, Ghent University, Ghent, Belgium
- NXTGNT, Ghent University, Ghent, Belgium
| | - Filip Van Nieuwerburgh
- Laboratory of Pharmaceutical Biotechnology, Ghent University, Ghent, Belgium
- NXTGNT, Ghent University, Ghent, Belgium
| | - Andy Wullaert
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB Center for Inflammation Research, Ghent, Belgium
- Cell Death Signaling Lab, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Richard Grencis
- Lydia Becker Institute of Immunology and Inflammation, Wellcome Centre for Cell Matrix Research, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Dirk Elewaut
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB Center for Inflammation Research, Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Lars Vereecke
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB Center for Inflammation Research, Ghent, Belgium
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Srinivasan S, Kancheva D, De Ren S, Saito T, Jans M, Boone F, Vandendriessche C, Paesmans I, Maurin H, Vandenbroucke RE, Hoste E, Voet S, Scheyltjens I, Pavie B, Lippens S, Schwabenland M, Prinz M, Saido T, Bottelbergs A, Movahedi K, Lamkanfi M, van Loo G. Inflammasome signaling is dispensable for ß-amyloid-induced neuropathology in preclinical models of Alzheimer's disease. Front Immunol 2024; 15:1323409. [PMID: 38352874 PMCID: PMC10863058 DOI: 10.3389/fimmu.2024.1323409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/10/2024] [Indexed: 02/16/2024] Open
Abstract
Background Alzheimer's disease (AD) is the most common neurodegenerative disorder affecting memory and cognition. The disease is accompanied by an abnormal deposition of ß-amyloid plaques in the brain that contributes to neurodegeneration and is known to induce glial inflammation. Studies in the APP/PS1 mouse model of ß-amyloid-induced neuropathology have suggested a role for inflammasome activation in ß-amyloid-induced neuroinflammation and neuropathology. Methods Here, we evaluated the in vivo role of microglia-selective and full body inflammasome signalling in several mouse models of ß-amyloid-induced AD neuropathology. Results Microglia-specific deletion of the inflammasome regulator A20 and inflammasome effector protease caspase-1 in the AppNL-G-F and APP/PS1 models failed to identify a prominent role for microglial inflammasome signalling in ß-amyloid-induced neuropathology. Moreover, global inflammasome inactivation through respectively full body deletion of caspases 1 and 11 in AppNL-G-F mice and Nlrp3 deletion in APP/PS1 mice also failed to modulate amyloid pathology and disease progression. In agreement, single-cell RNA sequencing did not reveal an important role for Nlrp3 signalling in driving microglial activation and the transition into disease-associated states, both during homeostasis and upon amyloid pathology. Conclusion Collectively, these results question a generalizable role for inflammasome activation in preclinical amyloid-only models of neuroinflammation.
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Affiliation(s)
- Sahana Srinivasan
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Daliya Kancheva
- Brain and Systems Immunology Lab, Brussels Center for Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sofie De Ren
- Neuroscience Therapeutic Area, Janssen Research and Development, Beerse, Belgium
| | - Takashi Saito
- Laboratory for Proteolytic Neuroscience, RIKEN Center for Brain Science, Saitama, Japan
- Department of Neurocognitive Science, Institute of Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
- Department of Neuroscience and Pathobiology, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Aichi, Japan
| | - Maude Jans
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Fleur Boone
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Charysse Vandendriessche
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Ine Paesmans
- Neuroscience Therapeutic Area, Janssen Research and Development, Beerse, Belgium
| | - Hervé Maurin
- Neuroscience Therapeutic Area, Janssen Research and Development, Beerse, Belgium
| | - Roosmarijn E. Vandenbroucke
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Esther Hoste
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sofie Voet
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Isabelle Scheyltjens
- Brain and Systems Immunology Lab, Brussels Center for Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Benjamin Pavie
- VIB Center for Inflammation Research, Ghent, Belgium
- VIB Bioimaging Core, Ghent, Belgium
| | - Saskia Lippens
- VIB Center for Inflammation Research, Ghent, Belgium
- VIB Bioimaging Core, Ghent, Belgium
| | - Marius Schwabenland
- Institute of Neuropathology Medical Center, University of Freiburg, Freiburg, Germany
| | - Marco Prinz
- Institute of Neuropathology Medical Center, University of Freiburg, Freiburg, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
- Center for Basics in NeuroModulation (NeuroModulBasics), Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Takaomi Saido
- Laboratory for Proteolytic Neuroscience, RIKEN Center for Brain Science, Saitama, Japan
| | - Astrid Bottelbergs
- Neuroscience Therapeutic Area, Janssen Research and Development, Beerse, Belgium
| | - Kiavash Movahedi
- Brain and Systems Immunology Lab, Brussels Center for Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Mohamed Lamkanfi
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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Johann L, Soldati S, Müller K, Lampe J, Marini F, Klein M, Schramm E, Ries N, Schelmbauer C, Palagi I, Karram K, Assmann JC, Khan MA, Wenzel J, Schmidt MH, Körbelin J, Schlüter D, van Loo G, Bopp T, Engelhardt B, Schwaninger M, Waisman A. A20 regulates lymphocyte adhesion in murine neuroinflammation by restricting endothelial ICOSL expression in the CNS. J Clin Invest 2023; 133:e168314. [PMID: 37856217 PMCID: PMC10721159 DOI: 10.1172/jci168314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 10/18/2023] [Indexed: 10/21/2023] Open
Abstract
A20 is a ubiquitin-modifying protein that negatively regulates NF-κB signaling. Mutations in A20/TNFAIP3 are associated with a variety of autoimmune diseases, including multiple sclerosis (MS). We found that deletion of A20 in central nervous system (CNS) endothelial cells (ECs) enhances experimental autoimmune encephalomyelitis (EAE), a mouse model of MS. A20ΔCNS-EC mice showed increased numbers of CNS-infiltrating immune cells during neuroinflammation and in the steady state. While the integrity of the blood-brain barrier (BBB) was not impaired, we observed a strong activation of CNS-ECs in these mice, with dramatically increased levels of the adhesion molecules ICAM-1 and VCAM-1. We discovered ICOSL to be expressed by A20-deficient CNS-ECs, which we found to function as adhesion molecules. Silencing of ICOSL in CNS microvascular ECs partly reversed the phenotype of A20ΔCNS-EC mice without reaching statistical significance and delayed the onset of EAE symptoms in WT mice. In addition, blocking of ICOSL on primary mouse brain microvascular ECs impaired the adhesion of T cells in vitro. Taken together, we propose that CNS EC-ICOSL contributes to the firm adhesion of T cells to the BBB, promoting their entry into the CNS and eventually driving neuroinflammation.
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Affiliation(s)
- Lisa Johann
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg, University Mainz, Mainz, Germany
| | - Sasha Soldati
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Kristin Müller
- Institute for Experimental and Clinical Pharmacology and Toxicology, Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
| | - Josephine Lampe
- Institute for Experimental and Clinical Pharmacology and Toxicology, Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
- DZHK (German Research Centre for Cardiovascular Research), Hamburg-Lübeck-Kiel, Germany
| | - Federico Marini
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI)
- Research Center for Immunotherapy (FZI), and
| | - Matthias Klein
- Institute for Immunology, University Medical Center of the Johannes Gutenberg, University Mainz, Mainz, Germany
| | - Eva Schramm
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg, University Mainz, Mainz, Germany
| | - Nathalie Ries
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg, University Mainz, Mainz, Germany
| | - Carsten Schelmbauer
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg, University Mainz, Mainz, Germany
| | - Ilaria Palagi
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg, University Mainz, Mainz, Germany
| | - Khalad Karram
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg, University Mainz, Mainz, Germany
| | - Julian C. Assmann
- Institute for Experimental and Clinical Pharmacology and Toxicology, Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
| | - Mahtab A. Khan
- Institute for Experimental and Clinical Pharmacology and Toxicology, Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
| | - Jan Wenzel
- Institute for Experimental and Clinical Pharmacology and Toxicology, Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
- DZHK (German Research Centre for Cardiovascular Research), Hamburg-Lübeck-Kiel, Germany
| | - Mirko H.H. Schmidt
- Institute of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden School of Medicine, Dresden, Germany
| | - Jakob Körbelin
- University Medical Center Hamburg-Eppendorf, Department of Oncology, Hematology and Bone Marrow Transplantation, Hamburg, Germany
| | - Dirk Schlüter
- Hannover Medical School, Institute of Medical Microbiology and Hospital Epidemiology, Hannover, Germany
| | - Geert van Loo
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Tobias Bopp
- Research Center for Immunotherapy (FZI), and
- Institute for Immunology, University Medical Center of the Johannes Gutenberg, University Mainz, Mainz, Germany
| | | | - Markus Schwaninger
- Institute for Experimental and Clinical Pharmacology and Toxicology, Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
- DZHK (German Research Centre for Cardiovascular Research), Hamburg-Lübeck-Kiel, Germany
| | - Ari Waisman
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg, University Mainz, Mainz, Germany
- Research Center for Immunotherapy (FZI), and
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Eeckhout E, Asaoka T, Van Gorp H, Demon D, Girard-Guyonvarc’h C, Andries V, Vereecke L, Gabay C, Lamkanfi M, van Loo G, Wullaert A. The autoinflammation-associated NLRC4 V341A mutation increases microbiota-independent IL-18 production but does not recapitulate human autoinflammatory symptoms in mice. Front Immunol 2023; 14:1272639. [PMID: 38090573 PMCID: PMC10713841 DOI: 10.3389/fimmu.2023.1272639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 11/13/2023] [Indexed: 12/18/2023] Open
Abstract
Background Autoinflammation with infantile enterocolitis (AIFEC) is an often fatal disease caused by gain-of-function mutations in the NLRC4 inflammasome. This inflammasomopathy is characterized by macrophage activation syndrome (MAS)-like episodes as well as neonatal-onset enterocolitis. Although elevated IL-18 levels were suggested to take part in driving AIFEC pathology, the triggers for IL-18 production and its ensuing pathogenic effects in these patients are incompletely understood. Methods Here, we developed and characterized a novel genetic mouse model expressing a murine version of the AIFEC-associated NLRC4V341A mutation from its endogenous Nlrc4 genomic locus. Results NLRC4V341A expression in mice recapitulated increased circulating IL-18 levels as observed in AIFEC patients. Housing NLRC4V341A-expressing mice in germfree (GF) conditions showed that these systemic IL-18 levels were independent of the microbiota, and unmasked an additional IL-18-inducing effect of NLRC4V341A expression in the intestines. Remarkably, elevated IL-18 levels did not provoke detectable intestinal pathologies in NLRC4V341A-expressing mice, even not upon genetically ablating IL-18 binding protein (IL-18BP), which is an endogenous IL-18 inhibitor that has been used therapeutically in AIFEC. In addition, NLRC4V341A expression did not alter susceptibility to the NLRC4-activating gastrointestinal pathogens Salmonella Typhimurium and Citrobacter rodentium. Conclusion As observed in AIFEC patients, mice expressing a murine NLRC4V341A mutant show elevated systemic IL-18 levels, suggesting that the molecular mechanisms by which this NLRC4V341A mutant induces excessive IL-18 production are conserved between humans and mice. However, while our GF and infection experiments argue against a role for commensal or pathogenic bacteria, identifying the triggers and mechanisms that synergize with IL-18 to drive NLRC4V341A-associated pathologies will require further research in this NLRC4V341A mouse model.
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Affiliation(s)
- Elien Eeckhout
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Tomoko Asaoka
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Hanne Van Gorp
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Dieter Demon
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Charlotte Girard-Guyonvarc’h
- Division of Rheumatology, Department of Medicine, University Hospital of Geneva, Department of Pathology and Immunology, University of Geneva Faculty of Medicine, Geneva, Switzerland
| | - Vanessa Andries
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Lars Vereecke
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Cem Gabay
- Division of Rheumatology, Department of Medicine, University Hospital of Geneva, Department of Pathology and Immunology, University of Geneva Faculty of Medicine, Geneva, Switzerland
| | - Mohamed Lamkanfi
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Geert van Loo
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Andy Wullaert
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
- Laboratory of Proteinscience, Proteomics and Epigenetic Signalling (PPES), Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
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Doglio MG, Verboom L, Ruilova Sosoranga E, Frising UC, Asaoka T, Gansemans Y, Van Nieuwerburgh F, van Loo G, Wullaert A. Myeloid OTULIN deficiency couples RIPK3-dependent cell death to Nlrp3 inflammasome activation and IL-1β secretion. Sci Immunol 2023; 8:eadf4404. [PMID: 38000038 DOI: 10.1126/sciimmunol.adf4404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 09/25/2023] [Indexed: 11/26/2023]
Abstract
Loss-of-function mutations in the deubiquitinase OTULIN result in an inflammatory pathology termed "OTULIN-related autoinflammatory syndrome" (ORAS). Genetic mouse models revealed essential roles for OTULIN in inflammatory and cell death signaling, but the mechanisms by which OTULIN deficiency connects cell death to inflammation remain unclear. Here, we identify OTULIN deficiency as a cellular condition that licenses RIPK3-mediated cell death in murine macrophages, leading to Nlrp3 inflammasome activation and subsequent IL-1β secretion. OTULIN deficiency uncoupled Nlrp3 inflammasome activation from gasdermin D-mediated pyroptosis, instead allowing RIPK3-dependent cell death to act as an Nlrp3 inflammasome activator and mechanism for IL-1β release. Accordingly, elevated serum IL-1β levels in myeloid-specific OTULIN-deficient mice were diminished by deleting either Ripk3 or Nlrp3. These findings identify OTULIN as an inhibitor of RIPK3-mediated IL-1β release in mice.
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Affiliation(s)
- M Giulia Doglio
- Department of Internal Medicine and Paediatrics, Ghent University, 9052 Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Lien Verboom
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Emily Ruilova Sosoranga
- Department of Internal Medicine and Paediatrics, Ghent University, 9052 Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Ulrika C Frising
- Department of Internal Medicine and Paediatrics, Ghent University, 9052 Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Tomoko Asaoka
- Department of Internal Medicine and Paediatrics, Ghent University, 9052 Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Yannick Gansemans
- Laboratory of Pharmaceutical Biotechnology, Ghent University, 9000 Ghent, Belgium
| | | | - Geert van Loo
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Andy Wullaert
- Department of Internal Medicine and Paediatrics, Ghent University, 9052 Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
- Laboratory of Proteinscience, Proteomics and Epigenetic Signalling (PPES), Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
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7
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Van Hove L, Toniolo A, Ghiasloo M, Lecomte K, Boone F, Ciers M, Raaijmakers K, Vandamme N, Roels J, Maschalidi S, Ravichandran KS, Kasper M, van Loo G, Hoste E. Autophagy critically controls skin inflammation and apoptosis-induced stem cell activation. Autophagy 2023; 19:2958-2971. [PMID: 37615626 PMCID: PMC10549204 DOI: 10.1080/15548627.2023.2247742] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 07/28/2023] [Accepted: 08/06/2023] [Indexed: 08/25/2023] Open
Abstract
Macroautophagy/autophagy is a cellular recycling program regulating cell survival and controlling inflammatory responses in a context-dependent manner. Here, we demonstrate that keratinocyte-selective ablation of Atg16l1, an essential autophagy mediator, results in exacerbated inflammatory and neoplastic skin responses. In addition, mice lacking keratinocyte autophagy exhibit precocious onset of hair follicle growth, indicating altered activation kinetics of hair follicle stem cells (HFSCs). These HFSCs also exhibit expanded potencies in an autophagy-deficient context as shown by de novo hair follicle formation and improved healing of abrasion wounds. ATG16L1-deficient keratinocytes are markedly sensitized to apoptosis. Compound deletion of RIPK3-dependent necroptotic and CASP8-dependent apoptotic responses or of TNFRSF1A/TNFR1 reveals that the enhanced sensitivity of autophagy-deficient keratinocytes to TNF-dependent cell death is driving altered activation of HFSCs. Together, our data demonstrate that keratinocyte autophagy dampens skin inflammation and tumorigenesis but curtails HFSC activation by restraining apoptotic responses.Abbreviations: ATG16L1: autophagy related 16 like 1; DMBA: 2,4-dimethoxybenzaldehyde; DP: dermal papilla; EpdSCs: epidermal stem cells; Gas6: growth arrest specific 6; HF: hair follicle; HFSC: hair follicle stem cell; IFE: interfollicular epidermis; KRT5: keratin 5; MAP1LC3/LC3: microtubule-associated protein 1 light chain 3; PMK: primary mouse keratinocyte; RIPK3: receptor-interacting serine-threonine kinase 3; scRNAseq: single-cell RNA-sequencing; SG: sebaceous gland; TEWL: transepidermal water loss; TPA: 12-O-tetradecanoylphorbol-13-acetate; TNF: tumor necrosis factor; TNFRSF1A/TNFR1: tumor necrosis factor receptor superfamily, member 1a; UMAP: uniform manifold approximation and projection.
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Affiliation(s)
- Lisette Van Hove
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Annagiada Toniolo
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Mohammad Ghiasloo
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Department of Plastic and Reconstructive Surgery, Ghent University Hospital, Ghent, Belgium
| | - Kim Lecomte
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Fleur Boone
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Maarten Ciers
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Kris Raaijmakers
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Niels Vandamme
- VIB Center for Inflammation Research, Ghent, Belgium
- VIB Single Cell Core, Ghent-Leuven, Belgium
| | - Jana Roels
- VIB Center for Inflammation Research, Ghent, Belgium
- VIB Single Cell Core, Ghent-Leuven, Belgium
| | - Sophia Maschalidi
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Kodi S Ravichandran
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Maria Kasper
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Esther Hoste
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
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8
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Van Damme KFA, Hertens P, Martens A, Gilis E, Priem D, Bruggeman I, Fossoul A, Declercq J, Aegerter H, Wullaert A, Hochepied T, Hoste E, Vande Walle L, Lamkanfi M, Savvides SN, Elewaut D, Lambrecht BN, van Loo G. Protein citrullination and NET formation do not contribute to the pathology of A20/TNFAIP3 mutant mice. Sci Rep 2023; 13:17992. [PMID: 37865713 PMCID: PMC10590390 DOI: 10.1038/s41598-023-45324-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 10/18/2023] [Indexed: 10/23/2023] Open
Abstract
A20 serves as a critical brake on NF-κB-dependent inflammation. In humans, polymorphisms in or near the TNFAIP3/A20 gene have been linked to various inflammatory disorders, including systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). Experimental gene knockout studies in mice have confirmed A20 as a susceptibility gene for SLE and RA. Here, we examine the significance of protein citrullination and NET formation in the autoimmune pathology of A20 mutant mice because autoimmunity directed against citrullinated antigens released by neutrophil extracellular traps (NETs) is central to the pathogenesis of RA and SLE. Furthermore, genetic variants impairing the deubiquitinase (DUB) function of A20 have been shown to contribute to autoimmune susceptibility. Our findings demonstrate that genetic disruption of A20 DUB function in A20 C103R knockin mice does not result in autoimmune pathology. Moreover, we show that PAD4 deficiency, which abolishes protein citrullination and NET formation, does not prevent the development of autoimmunity in A20 deficient mice. Collectively, these findings provide experimental confirmation that PAD4-dependent protein citrullination and NET formation do not serve as pathogenic mechanisms in the development of RA and SLE pathology in mice with A20 mutations.
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Affiliation(s)
- Karel F A Van Damme
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, 9052, Ghent, Belgium
| | - Pieter Hertens
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Arne Martens
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Elisabeth Gilis
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Rheumatology, Ghent University Hospital, 9000, Ghent, Belgium
| | - Dario Priem
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Inge Bruggeman
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Amelie Fossoul
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Jozefien Declercq
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, 9052, Ghent, Belgium
| | - Helena Aegerter
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, 9052, Ghent, Belgium
| | - Andy Wullaert
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
- Laboratory of Proteinscience, Proteomics and Epigenetic Signalling (PPES), Department of Biomedical Sciences, University of Antwerp, 2610, Antwerp, Belgium
| | - Tino Hochepied
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Esther Hoste
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | | | - Mohamed Lamkanfi
- Department of Internal Medicine and Pediatrics, Ghent University, 9052, Ghent, Belgium
| | - Savvas N Savvides
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, 9052, Ghent, Belgium
| | - Dirk Elewaut
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Rheumatology, Ghent University Hospital, 9000, Ghent, Belgium
| | - Bart N Lambrecht
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, 9052, Ghent, Belgium
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Geert van Loo
- VIB, Center for Inflammation Research, Technologiepark 71, 9052, Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium.
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9
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Thiran A, Petta I, Blancke G, Thorp M, Planckaert G, Jans M, Andries V, Barbry K, Gilis E, Coudenys J, Hochepied T, Vanhove C, Gracey E, Dumas E, Manuelo T, Josipovic I, van Loo G, Elewaut D, Vereecke L. Sterile triggers drive joint inflammation in TNF- and IL-1β-dependent mouse arthritis models. EMBO Mol Med 2023; 15:e17691. [PMID: 37694693 PMCID: PMC10565626 DOI: 10.15252/emmm.202317691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/12/2023] Open
Abstract
Arthritis is the most common extra-intestinal complication in inflammatory bowel disease (IBD). Conversely, arthritis patients are at risk for developing IBD and often display subclinical gut inflammation. These observations suggest a shared disease etiology, commonly termed "the gut-joint-axis." The clinical association between gut and joint inflammation is further supported by the success of common therapeutic strategies and microbiota dysbiosis in both conditions. Most data, however, support a correlative relationship between gut and joint inflammation, while causative evidence is lacking. Using two independent transgenic mouse arthritis models, either TNF- or IL-1β dependent, we demonstrate that arthritis develops independently of the microbiota and intestinal inflammation, since both lines develop full-blown articular inflammation under germ-free conditions. In contrast, TNF-driven gut inflammation is fully rescued in germ-free conditions, indicating that the microbiota is driving TNF-induced gut inflammation. Together, our study demonstrates that although common inflammatory pathways may drive both gut and joint inflammation, the molecular triggers initiating such pathways are distinct in these tissues.
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10
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Van San E, Debruyne AC, Veeckmans G, Tyurina YY, Tyurin VA, Zheng H, Choi SM, Augustyns K, van Loo G, Michalke B, Venkataramani V, Toyokuni S, Bayir H, Vandenabeele P, Hassannia B, Vanden Berghe T. Ferroptosis contributes to multiple sclerosis and its pharmacological targeting suppresses experimental disease progression. Cell Death Differ 2023; 30:2092-2103. [PMID: 37542104 PMCID: PMC10482919 DOI: 10.1038/s41418-023-01195-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/03/2023] [Accepted: 07/14/2023] [Indexed: 08/06/2023] Open
Abstract
Multiple sclerosis (MS) is a chronic autoimmune disorder characterized by central nervous (CNS) demyelination resulting in axonal injury and neurological deficits. Essentially, MS is driven by an auto-amplifying mechanism of inflammation and cell death. Current therapies mainly focus on disease modification by immunosuppression, while no treatment specifically focuses on controlling cell death injury. Here, we report that ferroptosis, an iron-catalyzed mode of regulated cell death (RCD), contributes to MS disease progression. Active and chronic MS lesions and cerebrospinal fluid (CSF) of MS patients revealed several signs of ferroptosis, reflected by the presence of elevated levels of (labile) iron, peroxidized phospholipids and lipid degradation products. Treatment with our candidate lead ferroptosis inhibitor, UAMC-3203, strongly delays relapse and ameliorates disease progression in a preclinical model of relapsing-remitting MS. In conclusion, the results identify ferroptosis as a detrimental and targetable factor in MS. These findings create novel treatment options for MS patients, along with current immunosuppressive strategies.
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Grants
- R01 NS076511 NINDS NIH HHS
- Research Foundation Flanders, G.0C76.18N, G.0B7.18N, G.0B96.20N, G049720N, G.0A93.22N (TVB, PV); Excellence of Science MODEL-IDI and CD-INFLADIS (TVB, PV, KA); Consortium of excellence at University of Antwerp INFLA-MED (KA, TVB); Industrial Research Fund (KA, TVB) and BOF-IMPULS from University of Antwerp (TVB); Foundation against cancer FAF-C/2018/1250 and F/2022/2067 (TVB); Charcot Foundation (EVS, TVB, PV); VLIRUOS TEAM2018-01-137 (TVB, PV); Research Foundation Flanders G0E0416N, G0C7618N, G0B718N, G.0B9620N (PV); FWO-SBO S001522N (TVB, KA); Flemish Institute of Biotechnology VIB (PV, TVB); Methusalem BOF16/MET_V/007 (PV); iBOF ATLANTIS grant 20/IBF/039 (PV); CRIG and GIGG consortia (PV); NIH NS076511 (HB).
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Affiliation(s)
- Emily Van San
- Department of Biomedical Molecular Biology, Ghent university, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Angela C Debruyne
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | | | - Yulia Y Tyurina
- Department of Environmental Health and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Vladimir A Tyurin
- Department of Environmental Health and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Hao Zheng
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sze Men Choi
- Department of Biomedical Molecular Biology, Ghent university, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Koen Augustyns
- Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Geert van Loo
- Department of Biomedical Molecular Biology, Ghent university, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Bernhard Michalke
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, Munich, Germany
| | | | - Shinya Toyokuni
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Center for Low-temperature Plasma Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya, Japan
| | - Hülya Bayir
- Department of Environmental Health and Occupational Health, University of Pittsburgh, Pittsburgh, PA, USA
- Children's Neuroscience Institute, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Peter Vandenabeele
- Department of Biomedical Molecular Biology, Ghent university, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Methusalem program, Ghent University, Ghent, Belgium
| | - Behrouz Hassannia
- Department of Biomedical Molecular Biology, Ghent university, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Tom Vanden Berghe
- Department of Biomedical Molecular Biology, Ghent university, Ghent, Belgium.
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.
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11
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Verboom L, Anderson CJ, Jans M, Petta I, Blancke G, Martens A, Sze M, Hochepied T, Ravichandran KS, Vereecke L, van Loo G. OTULIN protects the intestinal epithelium from apoptosis during inflammation and infection. Cell Death Dis 2023; 14:534. [PMID: 37598207 PMCID: PMC10439912 DOI: 10.1038/s41419-023-06058-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/19/2023] [Accepted: 08/10/2023] [Indexed: 08/21/2023]
Abstract
The intestinal epithelium is a single cell layer that is constantly renewed and acts as a physical barrier that separates intestinal microbiota from underlying tissues. In inflammatory bowel disease (IBD) in humans, as well as in experimental mouse models of IBD, this barrier is impaired, causing microbial infiltration and inflammation. Deficiency in OTU deubiquitinase with linear linkage specificity (OTULIN) causes OTULIN-related autoinflammatory syndrome (ORAS), a severe inflammatory pathology affecting multiple organs including the intestine. We show that mice with intestinal epithelial cell (IEC)-specific OTULIN deficiency exhibit increased susceptibility to experimental colitis and are highly sensitive to TNF toxicity, due to excessive apoptosis of OTULIN deficient IECs. OTULIN deficiency also increases intestinal pathology in mice genetically engineered to secrete excess TNF, confirming that chronic exposure to TNF promotes epithelial cell death and inflammation in OTULIN deficient mice. Mechanistically we demonstrate that upon TNF stimulation, OTULIN deficiency impairs TNF receptor complex I formation and LUBAC recruitment, and promotes the formation of the cytosolic complex II inducing epithelial cell death. Finally, we show that OTULIN deficiency in IECs increases susceptibility to Salmonella infection, further confirming the importance of OTULIN for intestinal barrier integrity. Together, these results identify OTULIN as a major anti-apoptotic protein in the intestinal epithelium and provide mechanistic insights into how OTULIN deficiency drives gastrointestinal inflammation in ORAS patients.
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Affiliation(s)
- Lien Verboom
- VIB Center for Inflammation Research, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Christopher J Anderson
- VIB Center for Inflammation Research, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - Maude Jans
- VIB Center for Inflammation Research, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Ioanna Petta
- VIB Center for Inflammation Research, 9052, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Gillian Blancke
- VIB Center for Inflammation Research, 9052, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Arne Martens
- VIB Center for Inflammation Research, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Mozes Sze
- VIB Center for Inflammation Research, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Tino Hochepied
- VIB Center for Inflammation Research, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Kodi S Ravichandran
- VIB Center for Inflammation Research, 9052, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium
| | - Lars Vereecke
- VIB Center for Inflammation Research, 9052, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, 9052, Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, 9052, Ghent, Belgium.
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12
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Jans M, Kolata M, Blancke G, Ciers M, Dohlman AB, Kusakabe T, Sze M, Thiran A, Berx G, Tejpar S, van Loo G, Iliev ID, Remaut H, Vereecke L. Colibactin-induced genotoxicity and colorectal cancer exacerbation critically depends on adhesin-mediated epithelial binding. bioRxiv 2023:2023.08.16.553526. [PMID: 37645947 PMCID: PMC10462063 DOI: 10.1101/2023.08.16.553526] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Various bacteria are suggested to contribute to colorectal cancer (CRC) development, including pks+ E. coli which produce the genotoxin colibactin that induces characteristic mutational signatures in host epithelial cells. It remains unclear how the highly unstable colibactin molecule is able to access host epithelial cells and its DNA to cause harm. Using the microbiota-dependent ZEB2-transgenic mouse model of invasive CRC, we found that pks+ E. coli drives CRC exacerbation and tissue invasion in a colibactin-dependent manner. Using isogenic mutant strains, we further demonstrate that CRC exacerbation critically depends on expression of the E. coli type-1 pilus adhesin FimH and the F9-pilus adhesin FmlH. Blocking bacterial adhesion using a pharmacological FimH inhibitor attenuates colibactin-mediated genotoxicity and CRC exacerbation. Together, we show that the oncogenic potential of pks+ E. coli critically depends on bacterial adhesion to host epithelial cells and is critically mediated by specific bacterial adhesins. Adhesin-mediated epithelial binding subsequently allows production of the genotoxin colibactin in close proximity to host epithelial cells, which promotes DNA damage and drives CRC development. These findings present promising therapeutic avenues for the development of anti-adhesive therapies aiming at mitigating colibactin-induced DNA damage and inhibiting the initiation and progression of CRC, particularly in individuals at risk for developing CRC.
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13
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Eeckhout E, Hamerlinck L, Jonckheere V, Van Damme P, van Loo G, Wullaert A. Gasdermin D independent canonical inflammasome responses cooperate with caspase-8 to establish host defense against gastrointestinal Citrobacter rodentium infection. Cell Death Dis 2023; 14:282. [PMID: 37080966 PMCID: PMC10119323 DOI: 10.1038/s41419-023-05801-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/22/2023]
Abstract
Citrobacter rodentium is an enteropathogen that causes intestinal inflammatory responses in mice reminiscent of the pathology provoked by enteropathogenic and enterohemorrhagic Escherichia coli infections in humans. C. rodentium expresses various virulence factors that target specific signaling proteins involved in executing apoptotic, necroptotic and pyroptotic cell death, suggesting that each of these distinct cell death modes performs essential host defense functions that the pathogen aims to disturb. However, the relative contributions of apoptosis, necroptosis and pyroptosis in protecting the host against C. rodentium have not been elucidated. Here we used mice with single or combined deficiencies in essential signaling proteins controlling apoptotic, necroptotic or pyroptotic cell death to reveal the roles of these cell death modes in host defense against C. rodentium. Gastrointestinal C. rodentium infections in mice lacking GSDMD and/or MLKL showed that both pyroptosis and necroptosis were dispensable for pathogen clearance. In contrast, while RIPK3-deficient mice showed normal C. rodentium clearance, mice with combined caspase-8 and RIPK3 deficiencies failed to clear intestinal pathogen loads. Although this demonstrated a crucial role for caspase-8 signaling in establishing intestinal host defense, Casp8-/-Ripk3-/- mice remained capable of preventing systemic pathogen persistence. This systemic host defense relied on inflammasome signaling, as Casp8-/-Ripk3-/- mice with combined caspase-1 and -11 deletion succumbed to C. rodentium infection. Interestingly, although it is known that C. rodentium can activate the non-canonical caspase-11 inflammasome, selectively disabling canonical inflammasome signaling by single caspase-1 deletion sufficed to render Casp8-/-Ripk3-/- mice vulnerable to C. rodentium-induced lethality. Moreover, Casp8-/-Ripk3-/- mice lacking GSDMD survived a C. rodentium infection, suggesting that pyroptosis was not crucial for the protective functions of canonical inflammasomes in these mice. Taken together, our mouse genetic experiments revealed an essential cooperation between caspase-8 signaling and GSDMD-independent canonical inflammasome signaling to establish intestinal and systemic host defense against gastrointestinal C. rodentium infection.
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Affiliation(s)
- Elien Eeckhout
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Lisa Hamerlinck
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent, Belgium
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Veronique Jonckheere
- iRIP Unit, Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Petra Van Damme
- iRIP Unit, Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Geert van Loo
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Andy Wullaert
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent, Belgium.
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium.
- Laboratory of Proteinscience, Proteomics and Epigenetic Signalling (PPES), Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.
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14
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Huyghe J, Priem D, Van Hove L, Gilbert B, Fritsch J, Uchiyama Y, Hoste E, van Loo G, Bertrand MJM. ATG9A prevents TNF cytotoxicity by an unconventional lysosomal targeting pathway. Science 2022; 378:1201-1207. [PMID: 36520901 DOI: 10.1126/science.add6967] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cell death induced by tumor necrosis factor (TNF) can be beneficial during infection by helping to mount proper immune responses. However, TNF-induced death can also drive a variety of inflammatory pathologies. Protectives brakes, or cell-death checkpoints, normally repress TNF cytotoxicity to protect the organism from its potential detrimental consequences. Thus, although TNF can kill, this only occurs when one of the checkpoints is inactivated. Here, we describe a checkpoint that prevents apoptosis through the detoxification of the cytotoxic complex IIa that forms upon TNF sensing. We found that autophagy-related 9A (ATG9A) and 200kD FAK family kinase-interacting protein (FIP200) promote the degradation of this complex through a light chain 3 (LC3)-independent lysosomal targeting pathway. This detoxification mechanism was found to counteract TNF receptor 1 (TNFR1)-mediated embryonic lethality and inflammatory skin disease in mouse models.
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Affiliation(s)
- Jon Huyghe
- VIB Center for Inflammation Research, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Dario Priem
- VIB Center for Inflammation Research, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Lisette Van Hove
- VIB Center for Inflammation Research, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Barbara Gilbert
- VIB Center for Inflammation Research, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Jürgen Fritsch
- Department of Infection Prevention and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Yasuo Uchiyama
- Department of Cell Biology and Neuroscience, Juntendo University Graduate School of Medicine, 113-8654 Tokyo, Japan
| | - Esther Hoste
- VIB Center for Inflammation Research, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Mathieu J M Bertrand
- VIB Center for Inflammation Research, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
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15
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Martens A, Hertens P, Priem D, Rinotas V, Meletakos T, Gennadi M, Van Hove L, Louagie E, Coudenys J, De Muynck A, Gaublomme D, Sze M, van Hengel J, Catrysse L, Hoste E, Zajac JD, Davey RA, Van Hoorebeke L, Hochepied T, Bertrand MJM, Armaka M, Elewaut D, van Loo G. A20 controls RANK-dependent osteoclast formation and bone physiology. EMBO Rep 2022; 23:e55233. [PMID: 36194667 PMCID: PMC9724664 DOI: 10.15252/embr.202255233] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 09/07/2022] [Accepted: 09/22/2022] [Indexed: 11/05/2022] Open
Abstract
The anti-inflammatory protein A20 serves as a critical brake on NF-κB signaling and NF-κB-dependent inflammation. In humans, polymorphisms in or near the TNFAIP3/A20 gene have been associated with several inflammatory disorders, including rheumatoid arthritis (RA), and experimental studies in mice have demonstrated that myeloid-specific A20 deficiency causes the development of a severe polyarthritis resembling human RA. Myeloid A20 deficiency also promotes osteoclastogenesis in mice, suggesting a role for A20 in the regulation of osteoclast differentiation and bone formation. We show here that osteoclast-specific A20 knockout mice develop severe osteoporosis, but not inflammatory arthritis. In vitro, osteoclast precursor cells from A20 deficient mice are hyper-responsive to RANKL-induced osteoclastogenesis. Mechanistically, we show that A20 is recruited to the RANK receptor complex within minutes of ligand binding, where it restrains NF-κB activation independently of its deubiquitinating activity but through its zinc finger (ZnF) 4 and 7 ubiquitin-binding functions. Together, these data demonstrate that A20 acts as a regulator of RANK-induced NF-κB signaling to control osteoclast differentiation, assuring proper bone development and turnover.
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Affiliation(s)
- Arne Martens
- Center for Inflammation Research VIBGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Pieter Hertens
- Center for Inflammation Research VIBGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Dario Priem
- Center for Inflammation Research VIBGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Vagelis Rinotas
- Biomedical Sciences Research Center 'Alexander Fleming'VariGreece
| | | | - Meropi Gennadi
- Biomedical Sciences Research Center 'Alexander Fleming'VariGreece
| | - Lisette Van Hove
- Center for Inflammation Research VIBGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Els Louagie
- Center for Inflammation Research VIBGhentBelgium
- Department of RheumatologyGhent University HospitalGhentBelgium
| | - Julie Coudenys
- Center for Inflammation Research VIBGhentBelgium
- Department of RheumatologyGhent University HospitalGhentBelgium
| | | | - Djoere Gaublomme
- Center for Inflammation Research VIBGhentBelgium
- Department of RheumatologyGhent University HospitalGhentBelgium
| | - Mozes Sze
- Center for Inflammation Research VIBGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | | | - Leen Catrysse
- Center for Inflammation Research VIBGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Esther Hoste
- Center for Inflammation Research VIBGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Jeffrey D Zajac
- Department of Medicine, Austin HealthUniversity of MelbourneHeidelbergVictoriaAustralia
| | - Rachel A Davey
- Department of Medicine, Austin HealthUniversity of MelbourneHeidelbergVictoriaAustralia
| | | | - Tino Hochepied
- Center for Inflammation Research VIBGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Mathieu J M Bertrand
- Center for Inflammation Research VIBGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Marietta Armaka
- Biomedical Sciences Research Center 'Alexander Fleming'VariGreece
| | - Dirk Elewaut
- Center for Inflammation Research VIBGhentBelgium
- Department of RheumatologyGhent University HospitalGhentBelgium
| | - Geert van Loo
- Center for Inflammation Research VIBGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
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16
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Maschalidi S, Mehrotra P, Keçeli BN, De Cleene HKL, Lecomte K, Van der Cruyssen R, Janssen P, Pinney J, van Loo G, Elewaut D, Massie A, Hoste E, Ravichandran KS. Author Correction: Targeting SLC7A11 improves efferocytosis by dendritic cells and wound healing in diabetes. Nature 2022; 608:E29. [PMID: 35896752 DOI: 10.1038/s41586-022-05101-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sophia Maschalidi
- Unit for Cell Clearance in Health and Disease, VIB Center for Inflammation Research, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
| | - Parul Mehrotra
- Unit for Cell Clearance in Health and Disease, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Burcu N Keçeli
- Unit for Cell Clearance in Health and Disease, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Hannah K L De Cleene
- Unit for Cell Clearance in Health and Disease, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Kim Lecomte
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Unit for Cellular and Molecular Pathophysiology, VIB Center for Inflammation Research, Ghent, Belgium
| | - Renée Van der Cruyssen
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Pauline Janssen
- Laboratory of Neuro-Aging and Viro-Immunotherapy, Center for Neurosciences (C4N), Vrije Universiteit Brussel, Brussels, Belgium
| | - Jonathan Pinney
- The Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA.,Department of Microbiology, Immunology, and Cancer Biology, and the Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA
| | - Geert van Loo
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Unit for Cellular and Molecular Pathophysiology, VIB Center for Inflammation Research, Ghent, Belgium
| | - Dirk Elewaut
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Ann Massie
- Laboratory of Neuro-Aging and Viro-Immunotherapy, Center for Neurosciences (C4N), Vrije Universiteit Brussel, Brussels, Belgium
| | - Esther Hoste
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Unit for Cellular and Molecular Pathophysiology, VIB Center for Inflammation Research, Ghent, Belgium
| | - Kodi S Ravichandran
- Unit for Cell Clearance in Health and Disease, VIB Center for Inflammation Research, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium. .,The Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA. .,Department of Microbiology, Immunology, and Cancer Biology, and the Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA. .,Division of Immunobiology, Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA.
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17
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de Reuver R, Verdonck S, Dierick E, Nemegeer J, Hessmann E, Ahmad S, Jans M, Blancke G, Van Nieuwerburgh F, Botzki A, Vereecke L, van Loo G, Declercq W, Hur S, Vandenabeele P, Maelfait J. ADAR1 prevents autoinflammation by suppressing spontaneous ZBP1 activation. Nature 2022; 607:784-789. [PMID: 35859175 DOI: 10.1038/s41586-022-04974-w] [Citation(s) in RCA: 78] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 06/13/2022] [Indexed: 12/20/2022]
Abstract
The RNA-editing enzyme adenosine deaminase acting on RNA 1 (ADAR1) limits the accumulation of endogenous immunostimulatory double-stranded RNA (dsRNA)1. In humans, reduced ADAR1 activity causes the severe inflammatory disease Aicardi-Goutières syndrome (AGS)2. In mice, complete loss of ADAR1 activity is embryonically lethal3-6, and mutations similar to those found in patients with AGS cause autoinflammation7-12. Mechanistically, adenosine-to-inosine (A-to-I) base modification of endogenous dsRNA by ADAR1 prevents chronic overactivation of the dsRNA sensors MDA5 and PKR3,7-10,13,14. Here we show that ADAR1 also inhibits the spontaneous activation of the left-handed Z-nucleic acid sensor ZBP1. Activation of ZBP1 elicits caspase-8-dependent apoptosis and MLKL-mediated necroptosis of ADAR1-deficient cells. ZBP1 contributes to the embryonic lethality of Adar-knockout mice, and it drives early mortality and intestinal cell death in mice deficient in the expression of both ADAR and MAVS. The Z-nucleic-acid-binding Zα domain of ADAR1 is necessary to prevent ZBP1-mediated intestinal cell death and skin inflammation. The Zα domain of ADAR1 promotes A-to-I editing of endogenous Alu elements to prevent dsRNA formation through the pairing of inverted Alu repeats, which can otherwise induce ZBP1 activation. This shows that recognition of Alu duplex RNA by ZBP1 may contribute to the pathological features of AGS that result from the loss of ADAR1 function.
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Affiliation(s)
- Richard de Reuver
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Simon Verdonck
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Evelien Dierick
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Josephine Nemegeer
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Eline Hessmann
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sadeem Ahmad
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Howard Hughes Medical Institute, Boston, MA, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Howard Hughes Medical Institute, Boston, MA, USA
| | - Maude Jans
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Gillian Blancke
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Filip Van Nieuwerburgh
- NXTGNT, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium.,Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | | | - Lars Vereecke
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Geert van Loo
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Wim Declercq
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sun Hur
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Howard Hughes Medical Institute, Boston, MA, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Howard Hughes Medical Institute, Boston, MA, USA
| | - Peter Vandenabeele
- VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jonathan Maelfait
- VIB-UGent Center for Inflammation Research, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
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18
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Frising UC, Ribo S, Doglio MG, Malissen B, van Loo G, Wullaert A. Nlrp3 inflammasome activation in macrophages suffices for inducing autoinflammation in mice. EMBO Rep 2022; 23:e54339. [PMID: 35574994 PMCID: PMC9253760 DOI: 10.15252/embr.202154339] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 04/22/2022] [Accepted: 04/26/2022] [Indexed: 12/13/2022] Open
Abstract
Cryopyrin-associated periodic syndromes (CAPS) are a spectrum of autoinflammatory disorders caused by gain-of-function NLRP3 mutant proteins that form hyperactive inflammasomes leading to overproduction of the pro-inflammatory cytokines IL-1β and IL-18. Expressing the murine gain-of-function Nlrp3A350V mutant selectively in neutrophils recapitulates several autoinflammatory features of human CAPS, but the potential contribution of macrophage inflammasome hyperactivation to CAPS development is poorly defined. Here, we show that expressing Nlrp3A350V in macrophages is sufficient for driving severe multi-organ autoinflammation leading to perinatal lethality in mice. In addition, we show that macrophages contribute to autoinflammation also in adult mice, as depleting macrophages in mice ubiquitously expressing Nlrp3A350V significantly diminishes splenic and hepatic IL-1β production. Interestingly, inflammation induced by macrophage-selective Nlrp3A350V expression does not provoke an influx of mature neutrophils, while neutrophil influx is still occurring in macrophage-depleted mice with body-wide Nlrp3A350V expression. These observations identify macrophages as important cellular drivers of CAPS in mice and support a cooperative cellular model of CAPS development in which macrophages and neutrophils act independently of each other in propagating severe autoinflammation.
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Affiliation(s)
- Ulrika C Frising
- Department of Internal Medicine and Paediatrics Ghent University Ghent Belgium
- VIB‐UGent Center for Inflammation Research VIB Ghent Belgium
| | - Silvia Ribo
- Department of Internal Medicine and Paediatrics Ghent University Ghent Belgium
- VIB‐UGent Center for Inflammation Research VIB Ghent Belgium
| | - M Giulia Doglio
- Department of Internal Medicine and Paediatrics Ghent University Ghent Belgium
- VIB‐UGent Center for Inflammation Research VIB Ghent Belgium
| | - Bernard Malissen
- Centre d'Immunologie de Marseille‐Luminy Aix‐Marseille Université, INSERM, CNRS Marseille France
| | - Geert van Loo
- VIB‐UGent Center for Inflammation Research VIB Ghent Belgium
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
| | - Andy Wullaert
- Department of Internal Medicine and Paediatrics Ghent University Ghent Belgium
- VIB‐UGent Center for Inflammation Research VIB Ghent Belgium
- Laboratory of Protein Chemistry, Proteomics and Epigenetic Signalling (PPES) Department of Biomedical Sciences University of Antwerp Antwerp Belgium
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19
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Maschalidi S, Mehrotra P, Keçeli BN, De Cleene HKL, Lecomte K, Van der Cruyssen R, Janssen P, Pinney J, van Loo G, Elewaut D, Massie A, Hoste E, Ravichandran KS. Targeting SLC7A11 improves efferocytosis by dendritic cells and wound healing in diabetes. Nature 2022; 606:776-784. [PMID: 35614212 DOI: 10.1038/s41586-022-04754-6] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 04/11/2022] [Indexed: 02/07/2023]
Abstract
Chronic non-healing wounds are a major complication of diabetes, which affects 1 in 10 people worldwide. Dying cells in the wound perpetuate the inflammation and contribute to dysregulated tissue repair1-3. Here we reveal that the membrane transporter SLC7A11 acts as a molecular brake on efferocytosis, the process by which dying cells are removed, and that inhibiting SLC7A11 function can accelerate wound healing. Transcriptomics of efferocytic dendritic cells in mouse identified upregulation of several SLC7 gene family members. In further analyses, pharmacological inhibition of SLC7A11, or deletion or knockdown of Slc7a11 using small interfering RNA enhanced efferocytosis in dendritic cells. Slc7a11 was highly expressed in dendritic cells in skin, and single-cell RNA sequencing of inflamed skin showed that Slc7a11 was upregulated in innate immune cells. In a mouse model of excisional skin wounding, inhibition or loss of SLC7A11 expression accelerated healing dynamics and reduced the apoptotic cell load in the wound. Mechanistic studies revealed a link between SLC7A11, glucose homeostasis and diabetes. SLC7A11-deficient dendritic cells were dependent on aerobic glycolysis using glucose derived from glycogen stores for increased efferocytosis; also, transcriptomics of efferocytic SLC7A11-deficient dendritic cells identified increased expression of genes linked to gluconeogenesis and diabetes. Further, Slc7a11 expression was higher in the wounds of diabetes-prone db/db mice, and targeting SLC7A11 accelerated their wound healing. The faster healing was also linked to the release of the TGFβ family member GDF15 from efferocytic dendritic cells. In sum, SLC7A11 is a negative regulator of efferocytosis, and removing this brake improves wound healing, with important implications for wound management in diabetes.
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Affiliation(s)
- Sophia Maschalidi
- Unit for Cell Clearance in Health and Disease, VIB Center for Inflammation Research, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
| | - Parul Mehrotra
- Unit for Cell Clearance in Health and Disease, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Burcu N Keçeli
- Unit for Cell Clearance in Health and Disease, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Hannah K L De Cleene
- Unit for Cell Clearance in Health and Disease, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Kim Lecomte
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Unit for Cellular and Molecular Pathophysiology, VIB Center for Inflammation Research, Ghent, Belgium
| | - Renée Van der Cruyssen
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Pauline Janssen
- Laboratory of Neuro-Aging and Viro-Immunotherapy, Center for Neurosciences (C4N), Vrije Universiteit Brussel, Brussels, Belgium
| | - Jonathan Pinney
- The Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA.,Department of Microbiology, Immunology, and Cancer Biology, and the Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA
| | - Geert van Loo
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Unit for Cellular and Molecular Pathophysiology, VIB Center for Inflammation Research, Ghent, Belgium
| | - Dirk Elewaut
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Ghent University Hospital, Ghent, Belgium
| | - Ann Massie
- Laboratory of Neuro-Aging and Viro-Immunotherapy, Center for Neurosciences (C4N), Vrije Universiteit Brussel, Brussels, Belgium
| | - Esther Hoste
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Unit for Cellular and Molecular Pathophysiology, VIB Center for Inflammation Research, Ghent, Belgium
| | - Kodi S Ravichandran
- Unit for Cell Clearance in Health and Disease, VIB Center for Inflammation Research, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium. .,The Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA. .,Department of Microbiology, Immunology, and Cancer Biology, and the Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA. .,Division of Immunobiology, Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA.
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20
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Van Hauwermeiren F, Van Opdenbosch N, Van Gorp H, de Vasconcelos N, van Loo G, Vandenabeele P, Kanneganti TD, Lamkanfi M. Bacillus anthracis induces NLRP3 inflammasome activation and caspase-8-mediated apoptosis of macrophages to promote lethal anthrax. Proc Natl Acad Sci U S A 2022; 119:e2116415119. [PMID: 34996874 PMCID: PMC8764678 DOI: 10.1073/pnas.2116415119] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2021] [Indexed: 12/29/2022] Open
Abstract
Lethal toxin (LeTx)-mediated killing of myeloid cells is essential for Bacillus anthracis, the causative agent of anthrax, to establish systemic infection and induce lethal anthrax. The "LeTx-sensitive" NLRP1b inflammasome of BALB/c and 129S macrophages swiftly responds to LeTx intoxication with pyroptosis and secretion of interleukin (IL)-1β. However, human NLRP1 is nonresponsive to LeTx, prompting us to investigate B. anthracis host-pathogen interactions in C57BL/6J (B6) macrophages and mice that also lack a LeTx-sensitive Nlrp1b allele. Unexpectedly, we found that LeTx intoxication and live B. anthracis infection of B6 macrophages elicited robust secretion of IL-1β, which critically relied on the NLRP3 inflammasome. TNF signaling through both TNF receptor 1 (TNF-R1) and TNF-R2 were required for B. anthracis-induced NLRP3 inflammasome activation, which was further controlled by RIPK1 kinase activity and LeTx-mediated proteolytic inactivation of MAP kinase signaling. In addition to activating the NLRP3 inflammasome, LeTx-induced MAPKK inactivation and TNF production sensitized B. anthracis-infected macrophages to robust RIPK1- and caspase-8-dependent apoptosis. In agreement, purified LeTx triggered RIPK1 kinase activity- and caspase-8-dependent apoptosis only in macrophages primed with TNF or following engagement of TRIF-dependent Toll-like receptors. Consistently, genetic and pharmacological inhibition of RIPK1 inhibited NLRP3 inflammasome activation and apoptosis of LeTx-intoxicated and B. anthracis-infected macrophages. Caspase-8/RIPK3-deficient mice were significantly protected from B. anthracis-induced lethality, demonstrating the in vivo pathophysiological relevance of this cytotoxic mechanism. Collectively, these results establish TNF- and RIPK1 kinase activity-dependent NLRP3 inflammasome activation and macrophage apoptosis as key host-pathogen mechanisms in lethal anthrax.
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Affiliation(s)
- Filip Van Hauwermeiren
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent B-9000, Belgium
- Center for Inflammation Research, VIB, Ghent B-9000, Belgium
| | - Nina Van Opdenbosch
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent B-9000, Belgium
- Center for Inflammation Research, VIB, Ghent B-9000, Belgium
| | - Hanne Van Gorp
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent B-9000, Belgium
- Center for Inflammation Research, VIB, Ghent B-9000, Belgium
| | - Nathalia de Vasconcelos
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent B-9000, Belgium
- Center for Inflammation Research, VIB, Ghent B-9000, Belgium
| | - Geert van Loo
- Center for Inflammation Research, VIB, Ghent B-9000, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent B-9052, Belgium
| | - Peter Vandenabeele
- Center for Inflammation Research, VIB, Ghent B-9000, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent B-9052, Belgium
| | | | - Mohamed Lamkanfi
- Department of Internal Medicine and Paediatrics, Ghent University, Ghent B-9000, Belgium;
- Center for Inflammation Research, VIB, Ghent B-9000, Belgium
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21
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Hoste E, Lecomte K, Annusver K, Vandamme N, Roels J, Maschalidi S, Verboom L, Vikkula HK, Sze M, Van Hove L, Verstaen K, Martens A, Hochepied T, Saeys Y, Ravichandran K, Kasper M, van Loo G. OTULIN maintains skin homeostasis by controlling keratinocyte death and stem cell identity. Nat Commun 2021; 12:5913. [PMID: 34625556 PMCID: PMC8501048 DOI: 10.1038/s41467-021-25944-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 09/09/2021] [Indexed: 12/23/2022] Open
Abstract
OTULIN is a deubiquitinase that specifically cleaves linear ubiquitin chains. Here we demonstrate that the ablation of Otulin selectively in keratinocytes causes inflammatory skin lesions that develop into verrucous carcinomas. Genetic deletion of Tnfr1, knockin expression of kinase-inactive Ripk1 or keratinocyte-specific deletion of Fadd and Mlkl completely rescues mice with OTULIN deficiency from dermatitis and tumorigenesis, thereby identifying keratinocyte cell death as the driving force for inflammation. Single-cell RNA-sequencing comparing non-lesional and lesional skin reveals changes in epidermal stem cell identity in OTULIN-deficient keratinocytes prior to substantial immune cell infiltration. Keratinocytes lacking OTULIN display a type-1 interferon and IL-1β response signature, and genetic or pharmacologic inhibition of these cytokines partially inhibits skin inflammation. Finally, expression of a hypomorphic mutant Otulin allele, previously shown to cause OTULIN-related autoinflammatory syndrome in humans, induces a similar inflammatory phenotype, thus supporting the importance of OTULIN for restraining skin inflammation and maintaining immune homeostasis.
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Affiliation(s)
- Esther Hoste
- VIB Center for Inflammation Research, Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.
| | - Kim Lecomte
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Karl Annusver
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Niels Vandamme
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Applied Mathematics, Computer Sciences and Statistics, Ghent University, Ghent, Belgium
| | - Jana Roels
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Applied Mathematics, Computer Sciences and Statistics, Ghent University, Ghent, Belgium
| | - Sophia Maschalidi
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Lien Verboom
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Hanna-Kaisa Vikkula
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Mozes Sze
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Lisette Van Hove
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Kevin Verstaen
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Applied Mathematics, Computer Sciences and Statistics, Ghent University, Ghent, Belgium
| | - Arne Martens
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Tino Hochepied
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Yvan Saeys
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Applied Mathematics, Computer Sciences and Statistics, Ghent University, Ghent, Belgium
| | - Kodi Ravichandran
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Center for Cell Clearance and Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, USA
| | - Maria Kasper
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.
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22
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Heida A, Gruben N, Catrysse L, Koehorst M, Koster M, Kloosterhuis NJ, Gerding A, Havinga R, Bloks VW, Bongiovanni L, Wolters JC, van Dijk T, van Loo G, de Bruin A, Kuipers F, Koonen DPY, van de Sluis B. The hepatocyte IKK:NF-κB axis promotes liver steatosis by stimulating de novo lipogenesis and cholesterol synthesis. Mol Metab 2021; 54:101349. [PMID: 34626855 PMCID: PMC8581577 DOI: 10.1016/j.molmet.2021.101349] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/20/2021] [Accepted: 09/30/2021] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE Obesity-related chronic inflammation plays an important role in the development of Metabolic Associated Fatty Liver Disease (MAFLD). Although the contribution of the pro-inflammatory NF-κB signaling pathway to the progression from simple steatosis to non-alcoholic steatohepatitis (NASH) is well-established, its role as an initiator of hepatic steatosis and the underlying mechanism remains unclear. Here, we investigated the hypothesis that the hepatocytic NF-κB signaling pathway acts as a metabolic regulator, thereby promoting hepatic steatosis development. METHODS A murine model expressing a constitutively active form of IKKβ in hepatocytes (Hep-IKKβca) was used to activate hepatocyte NF-κB. In addition, IKKβca was also expressed in hepatocyte A20-deficient mice (IKKβca;A20LKO). A20 is an NF-κB-target gene that inhibits the activation of the NF-κB signaling pathway upstream of IKKβ. These mouse models were fed a sucrose-rich diet for 8 weeks. Hepatic lipid levels were measured and using [1-13C]-acetate de novo lipogenesis and cholesterol synthesis rate were determined. Gene expression analyses and immunoblotting were used to study the lipogenesis and cholesterol synthesis pathways. RESULTS Hepatocytic NF-κB activation by expressing IKKβca in hepatocytes resulted in hepatic steatosis without inflammation. Ablation of hepatocyte A20 in Hep-IKKβca mice (IKKβca;A20LKO mice) exacerbated hepatic steatosis, characterized by macrovesicular accumulation of triglycerides and cholesterol, and increased plasma cholesterol levels. Both De novo lipogenesis (DNL) and cholesterol synthesis were found elevated in IKKβca;A20LKO mice. Phosphorylation of AMP-activated kinase (AMPK) - a suppressor in lipogenesis and cholesterol synthesis - was decreased in IKKβca;A20LKO mice. This was paralleled by elevated protein levels of hydroxymethylglutaryl-CoA synthase 1 (HMGCS1) and reduced phosphorylation of HMG-CoA reductase (HMGCR) both key enzymes in the cholesterol synthesis pathway. Whereas inflammation was not observed in young IKKβca;A20LKO mice sustained hepatic NF-κB activation resulted in liver inflammation, together with elevated hepatic and plasma cholesterol levels in middle-aged mice. CONCLUSIONS The hepatocytic IKK:NF-κB axis is a metabolic regulator by controlling DNL and cholesterol synthesis, independent of its central role in inflammation. The IKK:NF-κB axis controls the phosphorylation levels of AMPK and HMGCR and the protein levels of HMGCS1. Chronic IKK-mediated NF-κB activation may contribute to the initiation of hepatic steatosis and cardiovascular disease risk in MAFLD patients.
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Affiliation(s)
- Andries Heida
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Nanda Gruben
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Leen Catrysse
- VIB Inflammation Research Center, Ghent University, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Martijn Koehorst
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Mirjam Koster
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Niels J Kloosterhuis
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Albert Gerding
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Rick Havinga
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Vincent W Bloks
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Laura Bongiovanni
- Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, the Netherlands; Faculty of Veterinary Medicine, University of Teramo, Teramo, Italy
| | - Justina C Wolters
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Theo van Dijk
- Departments of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Geert van Loo
- VIB Inflammation Research Center, Ghent University, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Alain de Bruin
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, the Netherlands
| | - Folkert Kuipers
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; Departments of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Debby P Y Koonen
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
| | - Bart van de Sluis
- Departments of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
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23
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Catrysse L, Maes B, Mehrotra P, Martens A, Hoste E, Martens L, Maueröder C, Remmerie A, Bujko A, Slowicka K, Sze M, Vikkula H, Ghesquière B, Scott CL, Saeys Y, van de Sluis B, Ravichandran K, Janssens S, van Loo G. A20 deficiency in myeloid cells protects mice from diet-induced obesity and insulin resistance due to increased fatty acid metabolism. Cell Rep 2021; 36:109748. [PMID: 34551300 DOI: 10.1016/j.celrep.2021.109748] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 04/04/2021] [Accepted: 09/02/2021] [Indexed: 10/20/2022] Open
Abstract
Obesity-induced inflammation is a major driving force in the development of insulin resistance, type 2 diabetes (T2D), and related metabolic disorders. During obesity, macrophages accumulate in the visceral adipose tissue, creating a low-grade inflammatory environment. Nuclear factor κB (NF-κB) signaling is a central coordinator of inflammatory responses and is tightly regulated by the anti-inflammatory protein A20. Here, we find that myeloid-specific A20-deficient mice are protected from diet-induced obesity and insulin resistance despite an inflammatory environment in their metabolic tissues. Macrophages lacking A20 show impaired mitochondrial respiratory function and metabolize more palmitate both in vitro and in vivo. We hypothesize that A20-deficient macrophages rely more on palmitate oxidation and metabolize the fat present in the diet, resulting in a lean phenotype and protection from metabolic disease. These findings reveal a role for A20 in regulating macrophage immunometabolism.
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Affiliation(s)
- Leen Catrysse
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Bastiaan Maes
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, B-9052 Ghent, Belgium
| | - Parul Mehrotra
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Arne Martens
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Esther Hoste
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Liesbet Martens
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Christian Maueröder
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Anneleen Remmerie
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Anna Bujko
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Karolina Slowicka
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Mozes Sze
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Hanna Vikkula
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Bart Ghesquière
- Metabolomics Core Facility, VIB Center for Cancer Biology, VIB, B-3000 Leuven, Belgium
| | - Charlotte L Scott
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Yvan Saeys
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Applied Mathematics, Computer Science and Statistics, Ghent University, B-9052 Ghent, Belgium
| | - Bart van de Sluis
- Department of Pediatrics, Molecular Genetics Section, University of Groningen, University Medical Center Groningen, NL- 9713 Groningen, the Netherlands
| | - Kodi Ravichandran
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium; Center for Cell Clearance and Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - Sophie Janssens
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, B-9052 Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
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24
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Van Wyngene L, Vanderhaeghen T, Petta I, Timmermans S, Corbeels K, Van der Schueren B, Vandewalle J, Van Looveren K, Wallaeys C, Eggermont M, Dewaele S, Catrysse L, van Loo G, Beyaert R, Vangoitsenhoven R, Nakayama T, Tavernier J, De Bosscher K, Libert C. ZBTB32 performs crosstalk with the glucocorticoid receptor and is crucial in glucocorticoid responses to starvation. iScience 2021; 24:102790. [PMID: 34337361 PMCID: PMC8324811 DOI: 10.1016/j.isci.2021.102790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 03/25/2021] [Accepted: 06/24/2021] [Indexed: 12/15/2022] Open
Abstract
The hypothalamic-pituitary-adrenal (HPA) axis forms a complex neuroendocrine system that regulates the body’s response to stress such as starvation. In contrast with the glucocorticoid receptor (GR), Zinc finger and BTB domain containing 32 (ZBTB32) is a transcription factor with poorly described functional relevance in physiology. This study shows that ZBTB32 is essential for the production of glucocorticoids (GCs) in response to starvation, since ZBTB32−/− mice fail to increase their GC production in the absence of nutrients. In terms of mechanism, GR-mediated upregulation of adrenal Scarb1 gene expression was absent in ZBTB32−/− mice, implicating defective cholesterol import as the cause of the poor GC synthesis. These lower GC levels are further associated with aberrations in the metabolic adaptation to starvation, which could explain the progressive weight gain of ZBTB32−/− mice. In conclusion, ZBTB32 performs a crosstalk with the GR in the metabolic adaptation to starvation via regulation of adrenal GC production. ZBTB32 is involved in the glucocorticoid production in response to starvation GR-mediated upregulation of adrenal Scarb1 regulates cholesterol import The weight gain of ZBTB32−/− mice is associated with aberrant metabolic adaptations
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Affiliation(s)
- Lise Van Wyngene
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Tineke Vanderhaeghen
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Ioanna Petta
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Ghent Gut Inflammation Group (GGIG), Ghent University, 9000 Ghent, Belgium.,Department of Rheumatology, Ghent University, 9000 Ghent, Belgium
| | - Steven Timmermans
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Katrien Corbeels
- Department of Chronic Diseases and Metabolism - Endocrinology, KU Leuven, Leuven, Belgium
| | - Bart Van der Schueren
- Department of Chronic Diseases and Metabolism - Endocrinology, KU Leuven, Leuven, Belgium
| | - Jolien Vandewalle
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Kelly Van Looveren
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Charlotte Wallaeys
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Melanie Eggermont
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Sylviane Dewaele
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Leen Catrysse
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Geert van Loo
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium.,Ghent Gut Inflammation Group (GGIG), Ghent University, 9000 Ghent, Belgium
| | - Rudi Beyaert
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium.,Ghent Gut Inflammation Group (GGIG), Ghent University, 9000 Ghent, Belgium
| | - Roman Vangoitsenhoven
- Department of Chronic Diseases and Metabolism - Endocrinology, KU Leuven, Leuven, Belgium
| | - Toshinori Nakayama
- Department of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Jan Tavernier
- Center for Medical Biotechnology, VIB Center for Medical Biotechnology, 9000 Ghent, Belgium.,Cytokine Receptor Laboratory (CRL), Department of Biomolecular Medicine, Faculty of Medicine and Health Sciences, Ghent University, 3 Albert Baertsoenkaai, 9000 Ghent, Belgium
| | - Karolien De Bosscher
- Center for Medical Biotechnology, VIB Center for Medical Biotechnology, 9000 Ghent, Belgium.,Translational Nuclear Receptor Research Lab, Department of Biomolecular Medicine, Faculty of Medicine and Health Sciences, Ghent University, 3 Albert Baertsoenkaai,9000 Ghent, Belgium
| | - Claude Libert
- Center for Inflammation Research, VIB Center for Inflammation Research, 9000 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium.,Ghent Gut Inflammation Group (GGIG), Ghent University, 9000 Ghent, Belgium
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25
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Verboom L, Hoste E, van Loo G. OTULIN in NF-κB signaling, cell death, and disease. Trends Immunol 2021; 42:590-603. [PMID: 34074601 DOI: 10.1016/j.it.2021.05.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/03/2021] [Accepted: 05/05/2021] [Indexed: 01/30/2023]
Abstract
Tight control of inflammatory signaling pathways is an absolute requirement to avoid chronic inflammation and disease. One of the proteins responsible for such control is OTU deubiquitinase with linear linkage specificity (OTULIN), the only mammalian deubiquitinating enzyme (DUB) exclusively hydrolyzing linear ubiquitin chains from proteins modified by the linear ubiquitin chain assembly complex (LUBAC) described thus far. Recent findings show that loss-of-function mutations in OTULIN underlie a severe early-onset human autoinflammatory disease and severe pathology in experimental mouse models. Here, we review the molecular and cellular mechanisms by which OTULIN controls inflammation and discuss the involvement of OTULIN in inflammatory disease development. We also highlight several newly identified roles for OTULIN, including a ubiquitin-independent function.
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Affiliation(s)
- Lien Verboom
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Esther Hoste
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium.
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26
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Picard M, Yonekura S, Slowicka K, Petta I, Rauber C, Routy B, Richard C, Iebba V, Tidjani Alou M, Becharef S, Ly P, Pizzato E, Lehmann CHK, Amon L, Klein C, Opolon P, Gomperts Boneca I, Scoazec JY, Hollebecque A, Malka D, Ghiringhelli F, Dudziak D, Berx G, Vereecke L, van Loo G, Kroemer G, Zitvogel L, Roberti MP. Ileal immune tonus is a prognosis marker of proximal colon cancer in mice and patients. Cell Death Differ 2021; 28:1532-1547. [PMID: 33262469 PMCID: PMC8167112 DOI: 10.1038/s41418-020-00684-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/11/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023] Open
Abstract
Ileal epithelial cell apoptosis and the local microbiota modulate the effects of oxaliplatin against proximal colon cancer by modulating tumor immunosurveillance. Here, we identified an ileal immune profile associated with the prognosis of colon cancer and responses to chemotherapy. The whole immune ileal transcriptome was upregulated in poor-prognosis patients with proximal colon cancer, while the colonic immunity of healthy and neoplastic areas was downregulated (except for the Th17 fingerprint) in such patients. Similar observations were made across experimental models of implanted and spontaneous murine colon cancer, showing a relationship between carcinogenesis and ileal inflammation. Conversely, oxaliplatin-based chemotherapy could restore a favorable, attenuated ileal immune fingerprint in responders. These results suggest that chemotherapy inversely shapes the immune profile of the ileum-tumor axis, influencing clinical outcome.
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Affiliation(s)
- Marion Picard
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Equipe Labellisée-Ligue Nationale contre le Cancer, Villejuif, France
- Institut Pasteur, Unit Biology and Genetics of the Bacterial Cell Wall, Paris, France
- INSERM, Equipe Avenir, Paris, France
| | - Satoru Yonekura
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Equipe Labellisée-Ligue Nationale contre le Cancer, Villejuif, France
- Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France
| | - Karolina Slowicka
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Ioanna Petta
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Conrad Rauber
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Equipe Labellisée-Ligue Nationale contre le Cancer, Villejuif, France
- Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France
| | - Bertrand Routy
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Equipe Labellisée-Ligue Nationale contre le Cancer, Villejuif, France
- Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France
| | - Corentin Richard
- Department of Medical Oncology, Center GF Leclerc, Dijon, France
- Plateform Transfer in Biological Oncology, Dijon, France
| | - Valerio Iebba
- Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Maryam Tidjani Alou
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Equipe Labellisée-Ligue Nationale contre le Cancer, Villejuif, France
| | - Sonia Becharef
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Equipe Labellisée-Ligue Nationale contre le Cancer, Villejuif, France
| | - Pierre Ly
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Equipe Labellisée-Ligue Nationale contre le Cancer, Villejuif, France
| | - Eugenie Pizzato
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Equipe Labellisée-Ligue Nationale contre le Cancer, Villejuif, France
| | - Christian H K Lehmann
- Department of Dermatology, Laboratory of Dendritic Cell Biology, Medical Immunology Campus Erlangen, University Hospital of Erlangen, Friedrich-Alexander-University (FAU) of Erlangen-Nürnberg, Erlangen, Germany
| | - Lukas Amon
- Department of Dermatology, Laboratory of Dendritic Cell Biology, Medical Immunology Campus Erlangen, University Hospital of Erlangen, Friedrich-Alexander-University (FAU) of Erlangen-Nürnberg, Erlangen, Germany
| | - Christophe Klein
- Equipe Labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
| | - Paule Opolon
- Departement de Biologie et Pathologie Médicales, Gustave Roussy Cancer Campus, Villejuif, France
| | - Ivo Gomperts Boneca
- Institut Pasteur, Unit Biology and Genetics of the Bacterial Cell Wall, Paris, France
- INSERM, Equipe Avenir, Paris, France
- CNRS UMR2001, Paris, France
| | - Jean-Yves Scoazec
- Departement de Biologie et Pathologie Médicales, Gustave Roussy Cancer Campus, Villejuif, France
| | - Antoine Hollebecque
- Departement de Médicine Oncologique, Gustave Roussy Cancer Campus, Villejuif, France
| | - David Malka
- Departement de Médicine Oncologique, Gustave Roussy Cancer Campus, Villejuif, France
| | - François Ghiringhelli
- Department of Medical Oncology, Center GF Leclerc, Dijon, France
- Plateform Transfer in Biological Oncology, Dijon, France
| | - Diana Dudziak
- Department of Dermatology, Laboratory of Dendritic Cell Biology, Medical Immunology Campus Erlangen, University Hospital of Erlangen, Friedrich-Alexander-University (FAU) of Erlangen-Nürnberg, Erlangen, Germany
| | - Geert Berx
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Lars Vereecke
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Guido Kroemer
- Equipe Labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
- Cell Biology and Metabolomics Platforms, Gustave Roussy Cancer Campus, Villejuif, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de, Paris, France
- Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
- Suzhou Institute for Systems Medicine, Chinese Academy of Medical Sciences, Suzhou, China
| | - Laurence Zitvogel
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Equipe Labellisée-Ligue Nationale contre le Cancer, Villejuif, France
- Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France
- Suzhou Institute for Systems Medicine, Chinese Academy of Medical Sciences, Suzhou, China
- Center of Clinical Investigations in Biotherapies of Cancer (CICBT) 1428, Villejuif, France
| | - Maria Paula Roberti
- Gustave Roussy Cancer Campus (GRCC), Villejuif, France.
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Equipe Labellisée-Ligue Nationale contre le Cancer, Villejuif, France.
- Center of Clinical Investigations in Biotherapies of Cancer (CICBT) 1428, Villejuif, France.
- Clinical Cooperation Unit Applied Tumor Immunity, National Center for Tumor Diseases (NCT), German Cancer Research Center (DKFZ), Heidelberg, Germany.
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27
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Van Hove L, Lecomte K, Roels J, Vandamme N, Vikkula HK, Hoorens I, Ongenae K, Hochepied T, Donati G, Saeys Y, Quist SR, Watt FM, van Loo G, Hoste E. Fibrotic enzymes modulate wound-induced skin tumorigenesis. EMBO Rep 2021; 22:e51573. [PMID: 33780134 DOI: 10.15252/embr.202051573] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 02/08/2021] [Accepted: 02/18/2021] [Indexed: 01/18/2023] Open
Abstract
Fibroblasts are a major component of the microenvironment of most solid tumours. Recent research elucidated a large heterogeneity and plasticity of activated fibroblasts, indicating that their role in cancer initiation, growth and metastasis is complex and context-dependent. Here, we performed genome-wide expression analysis comparing fibroblasts in normal, inflammatory and tumour-associated skin. Cancer-associated fibroblasts (CAFs) exhibit a fibrotic gene signature in wound-induced tumours, demonstrating persistent extracellular matrix (ECM) remodelling within these tumours. A top upregulated gene in mouse CAFs encodes for PRSS35, a protease capable of collagen remodelling. In human skin, we observed PRSS35 expression uniquely in the stroma of high-grade squamous cell carcinomas. Ablation of PRSS35 in mouse models of wound- or chemically-induced tumorigenesis resulted in aberrant collagen composition in the ECM and increased tumour incidence. Our results indicate that fibrotic enzymes expressed by CAFs can regulate squamous tumour initiation by remodelling the ECM.
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Affiliation(s)
- Lisette Van Hove
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Kim Lecomte
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jana Roels
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Applied Mathematics, Computer Sciences and Statistics, Ghent University, Ghent, Belgium
| | - Niels Vandamme
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Applied Mathematics, Computer Sciences and Statistics, Ghent University, Ghent, Belgium
| | - Hanna-Kaisa Vikkula
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Isabelle Hoorens
- Department of Dermatology, University Hospital Ghent, Ghent, Belgium
| | - Katia Ongenae
- Department of Dermatology, University Hospital Ghent, Ghent, Belgium
| | - Tino Hochepied
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Giacomo Donati
- Department of Life Sciences and Systems Biology, Molecular Biotechnology Center, University of Turin, Turin, Italy.,Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | - Yvan Saeys
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Applied Mathematics, Computer Sciences and Statistics, Ghent University, Ghent, Belgium
| | - Sven R Quist
- Department of Dermatology and Venereology, Otto-von-Guericke University, Magdeburg, Germany
| | - Fiona M Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Esther Hoste
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
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28
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Verboom L, Martens A, Priem D, Hoste E, Sze M, Vikkula H, Van Hove L, Voet S, Roels J, Maelfait J, Bongiovanni L, de Bruin A, Scott CL, Saeys Y, Pasparakis M, Bertrand MJM, van Loo G. OTULIN Prevents Liver Inflammation and Hepatocellular Carcinoma by Inhibiting FADD- and RIPK1 Kinase-Mediated Hepatocyte Apoptosis. Cell Rep 2021; 30:2237-2247.e6. [PMID: 32075762 DOI: 10.1016/j.celrep.2020.01.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/16/2019] [Accepted: 01/08/2020] [Indexed: 02/07/2023] Open
Abstract
Inflammatory signaling pathways are tightly regulated to avoid chronic inflammation and the development of disease. OTULIN is a deubiquitinating enzyme that controls inflammation by cleaving linear ubiquitin chains generated by the linear ubiquitin chain assembly complex. Here, we show that ablation of OTULIN in liver parenchymal cells in mice causes severe liver disease which is characterized by liver inflammation, hepatocyte apoptosis, and compensatory hepatocyte proliferation, leading to steatohepatitis, fibrosis, and hepatocellular carcinoma (HCC). Genetic ablation of Fas-associated death domain (FADD) completely rescues and knockin expression of kinase inactive receptor-interacting protein kinase 1 (RIPK1) significantly protects mice from developing liver disease, demonstrating that apoptosis of OTULIN-deficient hepatocytes triggers disease pathogenesis in this model. Finally, we demonstrate that type I interferons contribute to disease in hepatocyte-specific OTULIN-deficient mice. Our study reveals the critical importance of OTULIN in protecting hepatocytes from death, thereby preventing the development of chronic liver inflammation and HCC.
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Affiliation(s)
- Lien Verboom
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Arne Martens
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Dario Priem
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Esther Hoste
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Mozes Sze
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Hanna Vikkula
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Lisette Van Hove
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Sofie Voet
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Jana Roels
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Applied Mathematics, Computer Sciences, and Statistics, Ghent University, 9052 Ghent, Belgium
| | - Jonathan Maelfait
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Laura Bongiovanni
- Dutch Molecular Pathology Center, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3584, the Netherlands; Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen 9713, the Netherlands
| | - Alain de Bruin
- Dutch Molecular Pathology Center, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3584, the Netherlands; Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen 9713, the Netherlands
| | - Charlotte L Scott
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Yvan Saeys
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Applied Mathematics, Computer Sciences, and Statistics, Ghent University, 9052 Ghent, Belgium
| | - Manolis Pasparakis
- Institute for Genetics, Centre for Molecular Medicine (CMMC), University of Cologne, 50931 Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany
| | - Mathieu J M Bertrand
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
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29
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van Uden D, Koudstaal T, van Hulst JAC, Bergen IM, Gootjes C, Morrell NW, van Loo G, von der Thüsen JH, van den Bosch TPP, Ghigna MR, Perros F, Montani D, Kool M, Boomars KA, Hendriks RW. Central Role of Dendritic Cells in Pulmonary Arterial Hypertension in Human and Mice. Int J Mol Sci 2021; 22:ijms22041756. [PMID: 33578743 PMCID: PMC7916474 DOI: 10.3390/ijms22041756] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 12/12/2022] Open
Abstract
The pathogenesis of idiopathic pulmonary arterial hypertension (IPAH) is not fully understood, but evidence is accumulating that immune dysfunction plays a significant role. We previously reported that 31-week-old Tnfaip3DNGR1-KO mice develop pulmonary hypertension (PH) symptoms. These mice harbor a targeted deletion of the TNFα-induced protein-3 (Tnfaip3) gene, encoding the NF-κB regulatory protein A20, specifically in type I conventional dendritic cells (cDC1s). Here, we studied the involvement of dendritic cells (DCs) in PH in more detail. We found various immune cells, including DCs, in the hearts of Tnfaip3DNGR1-KO mice, particularly in the right ventricle (RV). Secondly, in young Tnfaip3DNGR1-KO mice, innate immune activation through airway exposure to toll-like receptor ligands essentially did not result in elevated RV pressures, although we did observe significant RV hypertrophy. Thirdly, PH symptoms in Tnfaip3DNGR1-KO mice were not enhanced by concomitant mutation of bone morphogenetic protein receptor type 2 (Bmpr2), which is the most affected gene in PAH patients. Finally, in human IPAH lung tissue we found co-localization of DCs and CD8+ T cells, representing the main cell type activated by cDC1s. Taken together, these findings support a unique role of cDC1s in PAH pathogenesis, independent of general immune activation or a mutation in the Bmpr2 gene.
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Affiliation(s)
- Denise van Uden
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.v.U.); (T.K.); (J.A.C.v.H.); (I.M.B.); (C.G.); (M.K.)
| | - Thomas Koudstaal
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.v.U.); (T.K.); (J.A.C.v.H.); (I.M.B.); (C.G.); (M.K.)
| | - Jennifer A. C. van Hulst
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.v.U.); (T.K.); (J.A.C.v.H.); (I.M.B.); (C.G.); (M.K.)
| | - Ingrid M. Bergen
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.v.U.); (T.K.); (J.A.C.v.H.); (I.M.B.); (C.G.); (M.K.)
| | - Chelsea Gootjes
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.v.U.); (T.K.); (J.A.C.v.H.); (I.M.B.); (C.G.); (M.K.)
| | - Nicholas W. Morrell
- Department of Medicine, University of Cambridge & NIHR BioResource for Translational Research & Addenbrooke’s Hospital NHS Foundation Trust & Royal Papworth Hospital NHS Foundation Trust, Cambridge CB2 0QQ, UK;
| | - Geert van Loo
- VIB Center for Inflammation Research, 9052 Ghent, Belgium;
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Jan H. von der Thüsen
- Department of Pathology, Erasmus MC, University Medical Center Rotterdam, 3015 GE Rotterdam, The Netherlands; (J.H.v.d.T.); (T.P.P.v.d.B.)
| | - Thierry P. P. van den Bosch
- Department of Pathology, Erasmus MC, University Medical Center Rotterdam, 3015 GE Rotterdam, The Netherlands; (J.H.v.d.T.); (T.P.P.v.d.B.)
| | - Maria-Rosa Ghigna
- School of Medicine, Université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France; (M.-R.G.); (F.P.); (D.M.)
- INSERM UMR_S 999, Pulmonary Hypertension: Pathology and Novel Therapies, Hôpital Marie Lannelongue, 92350 Le Plessis Robinson, France
- Division of Pathology, Marie Lannelongue Hospital, 92350 Le Plessis Robinson, France
| | - Frédéric Perros
- School of Medicine, Université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France; (M.-R.G.); (F.P.); (D.M.)
- INSERM UMR_S 999, Pulmonary Hypertension: Pathology and Novel Therapies, Hôpital Marie Lannelongue, 92350 Le Plessis Robinson, France
| | - David Montani
- School of Medicine, Université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France; (M.-R.G.); (F.P.); (D.M.)
- INSERM UMR_S 999, Pulmonary Hypertension: Pathology and Novel Therapies, Hôpital Marie Lannelongue, 92350 Le Plessis Robinson, France
- Department of Respiratory and Intensive Care Medicine, Pulmonary Hypertension National Referral Center, Assistance Publique—Hôpitaux de Paris (AP-HP), Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France
| | - Mirjam Kool
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.v.U.); (T.K.); (J.A.C.v.H.); (I.M.B.); (C.G.); (M.K.)
| | - Karin A. Boomars
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.v.U.); (T.K.); (J.A.C.v.H.); (I.M.B.); (C.G.); (M.K.)
- Correspondence: (K.A.B.); (R.W.H.); Tel.: +316-50031911 (K.A.B.); +31-10-7043700 (R.W.H.)
| | - Rudi W. Hendriks
- Department of Pulmonary Medicine, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (D.v.U.); (T.K.); (J.A.C.v.H.); (I.M.B.); (C.G.); (M.K.)
- Correspondence: (K.A.B.); (R.W.H.); Tel.: +316-50031911 (K.A.B.); +31-10-7043700 (R.W.H.)
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30
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Kiss M, Vande Walle L, Saavedra PHV, Lebegge E, Van Damme H, Murgaski A, Qian J, Ehling M, Pretto S, Bolli E, Keirsse J, Bardet PMR, Arnouk SM, Elkrim Y, Schmoetten M, Brughmans J, Debraekeleer A, Fossoul A, Boon L, Raes G, van Loo G, Lambrechts D, Mazzone M, Beschin A, Wullaert A, Lamkanfi M, Van Ginderachter JA, Laoui D. IL1β Promotes Immune Suppression in the Tumor Microenvironment Independent of the Inflammasome and Gasdermin D. Cancer Immunol Res 2020; 9:309-323. [PMID: 33361087 DOI: 10.1158/2326-6066.cir-20-0431] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 11/03/2020] [Accepted: 12/18/2020] [Indexed: 11/16/2022]
Abstract
IL1β is a central mediator of inflammation. Secretion of IL1β typically requires proteolytic maturation by the inflammasome and formation of membrane pores by gasdermin D (GSDMD). Emerging evidence suggests an important role for IL1β in promoting cancer progression in patients, but the underlying mechanisms are ill-defined. Here, we have shown a key role for IL1β in driving tumor progression in two distinct mouse tumor models. Notably, activation of the inflammasome, caspase-8, as well as the pore-forming proteins GSDMD and mixed lineage kinase domain-like protein in the host were dispensable for the release of intratumoral bioactive IL1β. Inflammasome-independent IL1β release promoted systemic neutrophil expansion and fostered accumulation of T-cell-suppressive neutrophils in the tumor. Moreover, IL1β was essential for neutrophil infiltration triggered by antiangiogenic therapy, thereby contributing to treatment-induced immunosuppression. Deletion of IL1β allowed intratumoral accumulation of CD8+ effector T cells that subsequently activated tumor-associated macrophages. Depletion of either CD8+ T cells or macrophages abolished tumor growth inhibition in IL1β-deficient mice, demonstrating a crucial role for CD8+ T-cell-macrophage cross-talk in the antitumor immune response. Overall, these results support a tumor-promoting role for IL1β through establishing an immunosuppressive microenvironment and show that inflammasome activation is not essential for release of this cytokine in tumors.
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Affiliation(s)
- Máté Kiss
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Lieselotte Vande Walle
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Pedro H V Saavedra
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Els Lebegge
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Helena Van Damme
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Aleksandar Murgaski
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Junbin Qian
- Laboratory of Translational Genetics, VIB Center for Cancer Biology, Leuven, Belgium.,Laboratory for Translational Genetics, Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Manuel Ehling
- Laboratory of Tumor Inflammation and Angiogenesis, VIB Center for Cancer Biology, Leuven, Belgium.,Laboratory of Tumor Inflammation and Angiogenesis, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Samantha Pretto
- Laboratory of Tumor Inflammation and Angiogenesis, VIB Center for Cancer Biology, Leuven, Belgium.,Laboratory of Tumor Inflammation and Angiogenesis, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Evangelia Bolli
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Jiri Keirsse
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Pauline M R Bardet
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sana M Arnouk
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Yvon Elkrim
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Maryse Schmoetten
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Jan Brughmans
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ayla Debraekeleer
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Amelie Fossoul
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Louis Boon
- Polpharma Biologics, Utrecht, the Netherlands
| | - Geert Raes
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Diether Lambrechts
- Laboratory of Translational Genetics, VIB Center for Cancer Biology, Leuven, Belgium.,Laboratory for Translational Genetics, Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Massimiliano Mazzone
- Laboratory of Tumor Inflammation and Angiogenesis, VIB Center for Cancer Biology, Leuven, Belgium.,Laboratory of Tumor Inflammation and Angiogenesis, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Alain Beschin
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Andy Wullaert
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Mohamed Lamkanfi
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Jo A Van Ginderachter
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium. .,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Damya Laoui
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium. .,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
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31
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Koudstaal T, van Hulst JAC, Das T, Neys SFH, Merkus D, Bergen IM, de Raaf MA, Bogaard HJ, Boon L, van Loo G, Aerts JGJV, Boomars KA, Kool M, Hendriks RW. DNGR1-Cre-mediated Deletion of Tnfaip3/A20 in Conventional Dendritic Cells Induces Pulmonary Hypertension in Mice. Am J Respir Cell Mol Biol 2020; 63:665-680. [PMID: 32755457 DOI: 10.1165/rcmb.2019-0443oc] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Chronic perivascular inflammation is a prominent feature in the lungs of idiopathic pulmonary arterial hypertension. Although the proportions of conventional dendritic cells (cDCs) and plasmacytoid DCs are increased in idiopathic pulmonary arterial hypertension lungs, it remains unknown whether activated cDCs play a pathogenic role. The Tnfaip3 gene encodes the ubiquitin-binding protein A20, which is a negative regulator of NF-κB, critically involved in DC activation. Targeting of Tnfaip3/A20 in cDCs was achieved by Clec9a (DNGR1)-Cre-mediated excision of the Tnfaip3 gene in Tnfaip3DNGR1-KO mice. Mice were evaluated for signs of pulmonary hypertension (PH) using right heart catheterization, echocardiography, and measurement of the Fulton index. Inflammation was assessed by immunohistochemistry and flow cytometry. Pulmonary cDCs and monocyte-derived DCs from 31-week-old Tnfaip3DNGR1-KO mice showed modulated expression of cell surface activation markers compared with Tnfaip3DNGR1-WT mice. Tnfaip3DNGR1-KO mice developed elevated right ventricular systolic pressure and right ventricular hypertrophy. The lungs of these mice displayed increased vascular remodeling and perivascular and peribronchial immune cell infiltration resembling tertiary lymphoid organs. Proportions of activated T cells and expression of IL-1β, IL-6, and IL-10 were enhanced in the lungs of Tnfaip3DNGR1-KO mice. Autoreactive IgA and IgG1 was detected in BAL and autoreactive IgA recognizing pulmonary endothelial antigens was present in the serum of Tnfaip3DNGR1-KO mice. All signs of PH were ameliorated in Tnfaip3DNGR1-KO mice by anti-IL-6 antibody treatment. These results indicate that activation of the NF-κB pathway in DCs, through deletion of A20/Tnfaip3, leads to experimental PH with accompanied pulmonary inflammation in an IL-6-dependent fashion.
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Affiliation(s)
| | | | | | | | | | | | - Michiel A de Raaf
- Department of Neonatology, Erasmus Medical Centre, Rotterdam, the Netherlands.,VU Medical Centre, Amsterdam, the Netherlands
| | | | - Louis Boon
- Polpharma Biologics, Utrecht, the Netherlands
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium; and.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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32
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Hoste E, Maueröder C, van Hove L, Catrysse L, Vikkula HK, Sze M, Maes B, Karjosukarso D, Martens L, Gonçalves A, Parthoens E, Roelandt R, Declercq W, Fuentes I, Palisson F, Gonzalez S, Salas-Alanis JC, Boon L, Huebener P, Mulder KW, Ravichandran K, Saeys Y, Schwabe RF, van Loo G. Epithelial HMGB1 Delays Skin Wound Healing and Drives Tumor Initiation by Priming Neutrophils for NET Formation. Cell Rep 2020; 29:2689-2701.e4. [PMID: 31775038 DOI: 10.1016/j.celrep.2019.10.104] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 09/06/2019] [Accepted: 10/25/2019] [Indexed: 01/03/2023] Open
Abstract
Regenerative responses predispose tissues to tumor formation by largely unknown mechanisms. High-mobility group box 1 (HMGB1) is a danger-associated molecular pattern contributing to inflammatory pathologies. We show that HMGB1 derived from keratinocytes, but not myeloid cells, delays cutaneous wound healing and drives tumor formation. In wounds of mice lacking HMGB1 selectively in keratinocytes, a marked reduction in neutrophil extracellular trap (NET) formation is observed. Pharmacological targeting of HMGB1 or NETs prevents skin tumorigenesis and accelerates wound regeneration. HMGB1-dependent NET formation and skin tumorigenesis is orchestrated by tumor necrosis factor (TNF) and requires RIPK1 kinase activity. NETs are present in the microenvironment of keratinocyte-derived tumors in mice and lesional and tumor skin of patients suffering from recessive dystrophic epidermolysis bullosa, a disease in which skin blistering predisposes to tumorigenesis. We conclude that tumorigenicity of the wound microenvironment depends on epithelial-derived HMGB1 regulating NET formation, thereby establishing a mechanism linking reparative inflammation to tumor initiation.
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Affiliation(s)
- Esther Hoste
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
| | - Christian Maueröder
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Lisette van Hove
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Leen Catrysse
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Hanna-Kaisa Vikkula
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Mozes Sze
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Bastiaan Maes
- VIB Center for Inflammation Research, 9052 Ghent, Belgium
| | - Dyah Karjosukarso
- Department of Molecular Developmental Biology, Radboud University, 6525 XZ Nijmegen, the Netherlands
| | - Liesbet Martens
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Amanda Gonçalves
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium; VIB Bio-Imaging Core, 9052 Ghent, Belgium
| | - Eef Parthoens
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium; VIB Bio-Imaging Core, 9052 Ghent, Belgium
| | - Ria Roelandt
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Wim Declercq
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Ignacia Fuentes
- Fundación DEBRA Chile, Santiago, Chile; Centro de Genetica y Genomica, Clinica Allemana, Universidad de Desarrollo, Santiago, Chile
| | - Francis Palisson
- Fundación DEBRA Chile, Santiago, Chile; Facultad de Medicina, Universidad de Desarrollo, Santiago, Chile
| | - Sergio Gonzalez
- Departemento de Patología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Louis Boon
- Bioceros, 3584 CM Utrecht, the Netherlands
| | - Peter Huebener
- Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Klaas Willem Mulder
- Department of Molecular Developmental Biology, Radboud University, 6525 XZ Nijmegen, the Netherlands
| | - Kodi Ravichandran
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Yvan Saeys
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Applied Mathematics, Computer Sciences and Statistics, Ghent University, 9052 Ghent, Belgium
| | | | - Geert van Loo
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
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33
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Slowicka K, Petta I, Blancke G, Hoste E, Dumas E, Sze M, Vikkula H, Radaelli E, Haigh JJ, Jonckheere S, Taminau J, Vandamme N, Wullaert A, Tulchinsky E, Nittner D, Van Vlierberghe P, De Hertogh G, Baldin P, Etlioglu E, Wirapati P, Boon L, Lambrecht BN, Callewaert C, Tejpar S, Goossens S, Berx G, Vereecke L, van Loo G. Publisher Correction: Zeb2 drives invasive and microbiota-dependent colon carcinoma. Nat Cancer 2020; 1:750. [PMID: 35122045 DOI: 10.1038/s43018-020-0097-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Karolina Slowicka
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Ghent Gut Inflammation Group, Ghent University, Ghent, Belgium
| | - Ioanna Petta
- VIB Center for Inflammation Research, Ghent, Belgium
- Ghent Gut Inflammation Group, Ghent University, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Gillian Blancke
- VIB Center for Inflammation Research, Ghent, Belgium
- Ghent Gut Inflammation Group, Ghent University, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Esther Hoste
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Emilie Dumas
- VIB Center for Inflammation Research, Ghent, Belgium
- Ghent Gut Inflammation Group, Ghent University, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Mozes Sze
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Hanna Vikkula
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Enrico Radaelli
- KU Leuven Center for Human Genetics, Leuven, Belgium
- VIB Center for Brain & Disease Research, Leuven, Belgium
| | - Jody J Haigh
- Research Institute in Oncology and Hematology, CancerCare Manitoba, Winnipeg, Manitoba, Canada
- Department of Pharmacology and Therapeutics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Sven Jonckheere
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Joachim Taminau
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Niels Vandamme
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Andy Wullaert
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Ghent Gut Inflammation Group, Ghent University, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Eugene Tulchinsky
- University of Leicester, Leicester, UK
- Department of Biomedical Sciences, Nazarbayev University School of Medicine, Astana, Kazakhstan
| | - David Nittner
- Histopathology Expertise Center, VIB-KU Leuven Center for Cancer Biology, Leuven, Belgium
- Department of Oncology, University Hospital Leuven, KU Leuven, Leuven, Belgium
| | - Pieter Van Vlierberghe
- Cancer Research Institute Ghent, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Gert De Hertogh
- Department of Pathology, University Hospital Leuven, KU Leuven, Leuven, Belgium
| | - Pamela Baldin
- Department of Pathology, Cliniques Universitaires Saint Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Emre Etlioglu
- Department of Oncology, University Hospital Leuven, KU Leuven, Leuven, Belgium
| | | | | | - Bart N Lambrecht
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Chris Callewaert
- Center for Microbial Ecology and Technology, Ghent University, Ghent, Belgium
| | - Sabine Tejpar
- Department of Oncology, University Hospital Leuven, KU Leuven, Leuven, Belgium
| | - Steven Goossens
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Geert Berx
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
- Cancer Research Institute Ghent, Ghent, Belgium.
| | - Lars Vereecke
- VIB Center for Inflammation Research, Ghent, Belgium.
- Ghent Gut Inflammation Group, Ghent University, Ghent, Belgium.
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.
- Cancer Research Institute Ghent, Ghent, Belgium.
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
- Ghent Gut Inflammation Group, Ghent University, Ghent, Belgium.
- Cancer Research Institute Ghent, Ghent, Belgium.
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34
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Abstract
A20 is a potent anti-inflammatory molecule, and mutations in TNFAIP3, the gene encoding A20, are associated with a wide panel of inflammatory pathologies, both in human and mouse. The anti-inflammatory properties of A20 are commonly attributed to its ability to suppress inflammatory NF-κB signaling by functioning as a ubiquitin-editing enzyme. However, A20 also protects cells from death, independently of NF-κB regulation, and recent work has demonstrated that cell death may drive some of the inflammatory conditions caused by A20 deficiency. Adding to the fact that the protective role of A20 does not primarily rely on its catalytic activities, these findings shed new light on A20 biology.
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Affiliation(s)
- Dario Priem
- Center for Inflammation Research, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Geert van Loo
- Center for Inflammation Research, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Mathieu J M Bertrand
- Center for Inflammation Research, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
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35
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Abstract
Neuroinflammation and neurodegeneration often result from the aberrant deposition of aggregated host proteins, including amyloid‐β, α‐synuclein, and prions, that can activate inflammasomes. Inflammasomes function as intracellular sensors of both microbial pathogens and foreign as well as host‐derived danger signals. Upon activation, they induce an innate immune response by secreting the inflammatory cytokines interleukin (IL)‐1β and IL‐18, and additionally by inducing pyroptosis, a lytic cell death mode that releases additional inflammatory mediators. Microglia are the prominent innate immune cells in the brain for inflammasome activation. However, additional CNS‐resident cell types including astrocytes and neurons, as well as infiltrating myeloid cells from the periphery, express and activate inflammasomes. In this review, we will discuss current understanding of the role of inflammasomes in common degenerative diseases of the brain and highlight inflammasome‐targeted strategies that may potentially treat these diseases.
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Affiliation(s)
- Sofie Voet
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sahana Srinivasan
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Mohamed Lamkanfi
- Department of Internal Medicine, Ghent University, Ghent, Belgium .,Janssen Immunosciences, World without Disease Accelerator, Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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36
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Affiliation(s)
- Arne Martens
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
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37
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Abstract
A20 is a potent anti-inflammatory protein, acting by inhibiting nuclear factor κB (NF-κB) signaling and inflammatory gene expression and/or by preventing cell death. Mutations in the A20/TNFAIP3 gene have been associated with a plethora of inflammatory and autoimmune pathologies in humans and in mice. Although the anti-inflammatory role of A20 is well accepted, fundamental mechanistic questions regarding its mode of action remain unclear. Here, we review new findings that further clarify the molecular and cellular mechanisms by which A20 controls inflammatory signaling and cell death, and discuss new evidence for its involvement in inflammatory and autoimmune disease development.
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Affiliation(s)
- Arne Martens
- VIB Center for Inflammation Research, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
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38
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Mamantopoulos M, Frising UC, Asaoka T, van Loo G, Lamkanfi M, Wullaert A. El Tor Biotype Vibrio cholerae Activates the Caspase-11-Independent Canonical Nlrp3 and Pyrin Inflammasomes. Front Immunol 2019; 10:2463. [PMID: 31736941 PMCID: PMC6828848 DOI: 10.3389/fimmu.2019.02463] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 10/02/2019] [Indexed: 01/18/2023] Open
Abstract
Vibrio cholerae is a Gram-negative enteropathogen causing potentially life-threatening cholera disease outbreaks, for which the World Health Organization currently registers 2–4 million cases and ~100.000 cholera-associated deaths annually worldwide. Genomic Vibrio cholerae research revealed that the strains causing this ongoing cholera pandemic are members of the El Tor biotype, which fully replaced the Classical biotype that caused former cholera pandemics. While both of these biotypes express the characteristic Cholera Toxin (CT), the El Tor biotype additionally expresses the accessory toxins hemolysin (hlyA) and multifunctional auto-processing repeat-in-toxin (MARTX). Previous studies demonstrated that the Classical biotype of Vibrio cholerae triggers caspase-11-dependent non-canonical inflammasome activation in macrophages following CT-mediated cytosolic delivery of LPS. In contrast to the Classical biotype, we here show that El Tor Vibrio cholerae induces IL-1β maturation and secretion in a caspase-11- and CT-independent manner. Instead, we show that El Tor Vibrio cholerae engages the canonical Nlrp3 inflammasome for IL-1β secretion through its accessory hlyA toxin. We further reveal the capacity of this enteropathogen to engage the canonical Pyrin inflammasome as an accessory mechanism for IL-1β secretion in conditions when the pro-inflammatory hlyA-Nlrp3 axis is blocked. Thus, we show that the V. cholerae El Tor biotype does not trigger caspase-11 activation, but instead triggers parallel Nlrp3- and Pyrin-dependent pathways toward canonical inflammasome activation to induce IL-1β-mediated inflammatory responses. These findings further unravel the complex inflammasome activating mechanisms that can be triggered when macrophages face the full arsenal of El Tor Vibrio cholerae toxins, and as such increase our understanding of host-pathogen interactions in the context of the Vibrio cholerae biotype associated with the ongoing cholera pandemic.
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Affiliation(s)
- Michail Mamantopoulos
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Ulrika C Frising
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Tomoko Asaoka
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium
| | - Geert van Loo
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Ghent Gut Inflammation Group (GGIG), Ghent University, Ghent, Belgium
| | - Mohamed Lamkanfi
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Janssen Immunosciences, World Without Disease Accelerator, Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium
| | - Andy Wullaert
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Ghent Gut Inflammation Group (GGIG), Ghent University, Ghent, Belgium
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39
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Priem D, Devos M, Druwé S, Martens A, Slowicka K, Ting AT, Pasparakis M, Declercq W, Vandenabeele P, van Loo G, Bertrand MJM. A20 protects cells from TNF-induced apoptosis through linear ubiquitin-dependent and -independent mechanisms. Cell Death Dis 2019; 10:692. [PMID: 31534131 PMCID: PMC6751190 DOI: 10.1038/s41419-019-1937-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/21/2019] [Accepted: 08/29/2019] [Indexed: 12/13/2022]
Abstract
The cytokine TNF promotes inflammation either directly by activating the MAPK and NF-κB signaling pathways, or indirectly by triggering cell death. A20 is a potent anti-inflammatory molecule, and mutations in the gene encoding A20 are associated with a wide panel of inflammatory pathologies, both in human and in the mouse. Binding of TNF to TNFR1 triggers the NF-κB-dependent expression of A20 as part of a negative feedback mechanism preventing sustained NF-κB activation. Apart from acting as an NF-κB inhibitor, A20 is also well-known for its ability to counteract the cytotoxic potential of TNF. However, the mechanism by which A20 mediates this function and the exact cell death modality that it represses have remained incompletely understood. In the present study, we provide in vitro and in vivo evidences that deletion of A20 induces RIPK1 kinase-dependent and -independent apoptosis upon single TNF stimulation. We show that constitutively expressed A20 is recruited to TNFR1 signaling complex (Complex I) via its seventh zinc finger (ZF7) domain, in a cIAP1/2-dependent manner, within minutes after TNF sensing. We demonstrate that Complex I-recruited A20 protects cells from apoptosis by stabilizing the linear (M1) ubiquitin network associated to Complex I, a process independent of its E3 ubiquitin ligase and deubiquitylase (DUB) activities and which is counteracted by the DUB CYLD, both in vitro and in vivo. In absence of linear ubiquitylation, A20 is still recruited to Complex I via its ZF4 and ZF7 domains, but this time protects the cells from death by deploying its DUB activity. Together, our results therefore demonstrate two distinct molecular mechanisms by which constitutively expressed A20 protect cells from TNF-induced apoptosis.
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Affiliation(s)
- Dario Priem
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Michael Devos
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sarah Druwé
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Arne Martens
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Karolina Slowicka
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Adrian T Ting
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Manolis Pasparakis
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine, University of Cologne, Cologne, Germany
| | - Wim Declercq
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Peter Vandenabeele
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Geert van Loo
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Mathieu J M Bertrand
- Center for Inflammation Research, VIB, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
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40
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Das T, Bergen IM, Koudstaal T, van Hulst JA, van Loo G, Boonstra A, Vanwolleghem T, Leung PS, Gershwin ME, Hendriks RW, Kool M. DNGR1-mediated deletion of A20/Tnfaip3 in dendritic cells alters T and B-cell homeostasis and promotes autoimmune liver pathology. J Autoimmun 2019; 102:167-178. [DOI: 10.1016/j.jaut.2019.05.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 04/27/2019] [Accepted: 05/05/2019] [Indexed: 02/06/2023]
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41
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Vetters J, van Helden MJ, Wahlen S, Tavernier SJ, Martens A, Fayazpour F, Vergote K, Vanheerswynghels M, Deswarte K, Van Moorleghem J, De Prijck S, Takahashi N, Vandenabeele P, Boon L, van Loo G, Vivier E, Lambrecht BN, Janssens S. The ubiquitin-editing enzyme A20 controls NK cell homeostasis through regulation of mTOR activity and TNF. J Exp Med 2019; 216:2010-2023. [PMID: 31296735 PMCID: PMC6719426 DOI: 10.1084/jem.20182164] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 05/10/2019] [Accepted: 06/18/2019] [Indexed: 01/20/2023] Open
Abstract
The study of Vetters et al. identifies the ubiquitin-modifying enzyme A20 as a critical regulator of mTOR. Loss of A20 unleashes mTOR activity and induces NK cell death, underscoring the need for a tightly controlled mTOR pathway for proper NK cell homeostasis. The ubiquitin-editing enzyme A20 is a well-known regulator of immune cell function and homeostasis. In addition, A20 protects cells from death in an ill-defined manner. While most studies focus on its role in the TNF-receptor complex, we here identify a novel component in the A20-mediated decision between life and death. Loss of A20 in NK cells led to spontaneous NK cell death and severe NK cell lymphopenia. The few remaining NK cells showed an immature, hyperactivated phenotype, hallmarked by the basal release of cytokines and cytotoxic molecules. NK-A20−/− cells were hypersensitive to TNF-induced cell death and could be rescued, at least partially, by a combined deficiency with TNF. Unexpectedly, rapamycin, a well-established inhibitor of mTOR, also strongly protected NK-A20−/− cells from death, and further studies revealed that A20 restricts mTOR activation in NK cells. This study therefore maps A20 as a crucial regulator of mTOR signaling and underscores the need for a tightly balanced mTOR pathway in NK cell homeostasis.
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Affiliation(s)
- Jessica Vetters
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium.,Laboratory for Endoplasmic Reticulum Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium.,GROUP-ID Consortium, Ghent University and Ghent University Hospital, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Mary J van Helden
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Sigrid Wahlen
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Simon J Tavernier
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Arne Martens
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Cellular and Molecular (Patho)physiology, VIB Center for Inflammation Research, Ghent, Belgium
| | - Farzaneh Fayazpour
- Laboratory for Endoplasmic Reticulum Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium.,GROUP-ID Consortium, Ghent University and Ghent University Hospital, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Karl Vergote
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Manon Vanheerswynghels
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Kim Deswarte
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Justine Van Moorleghem
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Sofie De Prijck
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Nozomi Takahashi
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Molecular Signaling and Cell Death, VIB Center for Inflammation Research, Ghent, Belgium
| | - Peter Vandenabeele
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Molecular Signaling and Cell Death, VIB Center for Inflammation Research, Ghent, Belgium
| | | | - Geert van Loo
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Cellular and Molecular (Patho)physiology, VIB Center for Inflammation Research, Ghent, Belgium
| | - Eric Vivier
- Innate Pharma Research Laboratories, Innate Pharma, Marseille, France.,Aix-Marseille University, Assistance Publique-Hôpitaux de Marseille, Centre d'Immunologie de Marseille-Luminy, Hôpital de la Timone, Marseille Immunopôle, Marseille, France
| | - Bart N Lambrecht
- Laboratory of Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium .,GROUP-ID Consortium, Ghent University and Ghent University Hospital, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Sophie Janssens
- Laboratory for Endoplasmic Reticulum Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium .,GROUP-ID Consortium, Ghent University and Ghent University Hospital, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
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42
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Polykratis A, Martens A, Eren RO, Shirasaki Y, Yamagishi M, Yamaguchi Y, Uemura S, Miura M, Holzmann B, Kollias G, Armaka M, van Loo G, Pasparakis M. A20 prevents inflammasome-dependent arthritis by inhibiting macrophage necroptosis through its ZnF7 ubiquitin-binding domain. Nat Cell Biol 2019; 21:731-742. [PMID: 31086261 DOI: 10.1038/s41556-019-0324-3] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 03/29/2019] [Indexed: 12/15/2022]
Abstract
Deficiency in the deubiquitinating enzyme A20 causes severe inflammation in mice, and impaired A20 function is associated with human inflammatory diseases. A20 has been implicated in negatively regulating NF-κB signalling, cell death and inflammasome activation; however, the mechanisms by which A20 inhibits inflammation in vivo remain poorly understood. Genetic studies in mice revealed that its deubiquitinase activity is not essential for A20 anti-inflammatory function. Here we show that A20 prevents inflammasome-dependent arthritis by inhibiting macrophage necroptosis and that this function depends on its zinc finger 7 (ZnF7). We provide genetic evidence that RIPK1 kinase-dependent, RIPK3-MLKL-mediated necroptosis drives inflammasome activation in A20-deficient macrophages and causes inflammatory arthritis in mice. Single-cell imaging revealed that RIPK3-dependent death caused inflammasome-dependent IL-1β release from lipopolysaccharide-stimulated A20-deficient macrophages. Importantly, mutation of the A20 ZnF7 ubiquitin binding domain caused arthritis in mice, arguing that ZnF7-dependent inhibition of necroptosis is critical for A20 anti-inflammatory function in vivo.
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Affiliation(s)
- Apostolos Polykratis
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine, University of Cologne, Cologne, Germany
| | - Arne Martens
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Remzi Onur Eren
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine, University of Cologne, Cologne, Germany
| | - Yoshitaka Shirasaki
- Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Tokyo, Japan.,Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Mai Yamagishi
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Yoshifumi Yamaguchi
- Department of Genetics, Graduate School of Pharmaceutical Science, The University of Tokyo, Tokyo, Japan.,Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
| | - Sotaro Uemura
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Masayuki Miura
- Department of Genetics, Graduate School of Pharmaceutical Science, The University of Tokyo, Tokyo, Japan
| | - Bernhard Holzmann
- Department of Surgery, School of Medicine, Technical University of Munich, Munich, Germany
| | - George Kollias
- Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece.,Department of Physiology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Marietta Armaka
- Biomedical Sciences Research Center 'Alexander Fleming', Vari, Greece
| | - Geert van Loo
- VIB Center for Inflammation Research, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
| | - Manolis Pasparakis
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine, University of Cologne, Cologne, Germany.
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43
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van Loo G. I092 The role of the ubuiquitin editing enzyme A20 in rheumatological disease. Rheumatology (Oxford) 2019. [DOI: 10.1093/rheumatology/kez109.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Geert van Loo
- VIB Center for Inflammation Research, University of Ghent, Gent, BELGIUM
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44
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Van Quickelberghe E, De Sutter D, van Loo G, Eyckerman S, Gevaert K. A protein-protein interaction map of the TNF-induced NF-κB signal transduction pathway. Sci Data 2018; 5:180289. [PMID: 30561431 PMCID: PMC6298254 DOI: 10.1038/sdata.2018.289] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 10/26/2018] [Indexed: 12/12/2022] Open
Abstract
Tumor Necrosis Factor (TNF) has a crucial role in inflammation, cell proliferation and cell death. Dysregulation of TNF receptor 1 (TNFR1)-induced Nuclear Factor-kappa B (NF-κB) signaling leads to chronic inflammation and is associated with several human inflammatory pathologies. Hence, TNF neutralization suppresses inflammation and attenuates inflammatory pathology. However, despite its beneficial effects, anti-TNF therapy suffers from efficacy issues and severe immune side effects. There is thus an urging need to identify novel targets for pharmaceutical intervention in the NF-κB signaling pathway. Here, we present a protein-protein interaction dataset of the TNFR1-induced signaling pathway. For this, we used Virotrap, a novel method for studying protein complexes without disrupting the cellular integrity, on 12 central proteins controlling NF-κB and cell death signaling, both under resting conditions as well as upon TNF stimulation. Our dataset reveals dynamic interactions in TNFR1-induced NF-κB signaling and identifies both known as well as novel interactors that may help to further unravel the molecular mechanisms steering TNF-induced inflammatory signaling and pathology.
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Affiliation(s)
- Emmy Van Quickelberghe
- VIB Center for Medical Biotechnology, B-9000 Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, B-9000 Ghent, Belgium
| | - Delphine De Sutter
- VIB Center for Medical Biotechnology, B-9000 Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, B-9000 Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, B-9052 Ghent, Belgium
| | - Sven Eyckerman
- VIB Center for Medical Biotechnology, B-9000 Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, B-9000 Ghent, Belgium
| | - Kris Gevaert
- VIB Center for Medical Biotechnology, B-9000 Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, B-9000 Ghent, Belgium
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45
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Vroman H, Das T, Bergen IM, van Hulst JAC, Ahmadi F, van Loo G, Lubberts E, Hendriks RW, Kool M. House dust mite-driven neutrophilic airway inflammation in mice with TNFAIP3-deficient myeloid cells is IL-17-independent. Clin Exp Allergy 2018; 48:1705-1714. [PMID: 30171721 DOI: 10.1111/cea.13262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/25/2018] [Accepted: 07/23/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Asthma is a heterogeneous disease of the airways that involves several types of granulocytic inflammation. Recently, we have shown that the activation status of myeloid cells regulated by TNFAIP3/A20 is a crucial determinant of eosinophilic or neutrophilic airway inflammation. However, whether neutrophilic inflammation observed in this model is dependent on IL-17 remains unknown. OBJECTIVE In this study, we investigated whether IL-17RA-signalling is essential for eosinophilic or neutrophilic inflammation in house dust mite (HDM)-driven airway inflammation. METHODS Tnfaip3fl/fl xLyz2+/cre (Tnfaip3LysM-KO ) mice were crossed to Il17raKO mice, generating Tnfaip3LysM Il17raKO mice and subjected to an HDM-driven airway inflammation model. RESULTS Both eosinophilic and neutrophilic inflammation observed in HDM-exposed WT and Tnfaip3LysM-KO mice respectively were unaltered in the absence of IL-17RA. Production of IL-5, IL-13 and IFN-γ by CD4+ T cells was similar between WT, Tnfaip3LysM-KO and Il17raKO mice, whereas mucus-producing cells in Tnfaip3LysM-KO Il17raKO mice were reduced compared to controls. Strikingly, spontaneous accumulation of pulmonary Th1, Th17 and γδ-17 T cells was observed in Tnfaip3LysM-KO Il17raKO mice, but not in the other genotypes. Th17 cell-associated cytokines such as GM-CSF and IL-22 were increased in the lungs of HDM-exposed Tnfaip3LysM-KO Il17raKO mice, compared to IL-17RA-sufficient controls. Moreover, neutrophilic chemo-attractants CXCL1, CXCL2, CXCL12 and Th17-promoting cytokines IL-1β and IL-6 were unaltered between Tnfaip3LysM-KO and Tnfaip3LysM-KO Il17raKO mice. CONCLUSION AND CLINICAL RELEVANCE These findings show that neutrophilic airway inflammation induced by activated TNFAIP3/A20-deficient myeloid cells can develop in the absence of IL-17RA-signalling. Neutrophilic inflammation is likely maintained by similar quantities of pro-inflammatory cytokines IL-1β and IL-6 that can, independently of IL-17-signalling, induce the expression of neutrophil chemo-attractants.
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Affiliation(s)
- Heleen Vroman
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Tridib Das
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Ingrid M Bergen
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | | | - Fatemeh Ahmadi
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Geert van Loo
- VIB Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Erik Lubberts
- Department of Rheumatology, Erasmus MC, Rotterdam, The Netherlands
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Mirjam Kool
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
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46
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Voet S, Mc Guire C, Hagemeyer N, Martens A, Schroeder A, Wieghofer P, Daems C, Staszewski O, Vande Walle L, Jordao MJC, Sze M, Vikkula HK, Demeestere D, Van Imschoot G, Scott CL, Hoste E, Gonçalves A, Guilliams M, Lippens S, Libert C, Vandenbroucke RE, Kim KW, Jung S, Callaerts-Vegh Z, Callaerts P, de Wit J, Lamkanfi M, Prinz M, van Loo G. A20 critically controls microglia activation and inhibits inflammasome-dependent neuroinflammation. Nat Commun 2018; 9:2036. [PMID: 29789522 PMCID: PMC5964249 DOI: 10.1038/s41467-018-04376-5] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/19/2018] [Indexed: 12/17/2022] Open
Abstract
Microglia, the mononuclear phagocytes of the central nervous system (CNS), are important for the maintenance of CNS homeostasis, but also critically contribute to CNS pathology. Here we demonstrate that the nuclear factor kappa B (NF-κB) regulatory protein A20 is crucial in regulating microglia activation during CNS homeostasis and pathology. In mice, deletion of A20 in microglia increases microglial cell number and affects microglial regulation of neuronal synaptic function. Administration of a sublethal dose of lipopolysaccharide induces massive microglia activation, neuroinflammation, and lethality in mice with microglia-confined A20 deficiency. Microglia A20 deficiency also exacerbates multiple sclerosis (MS)-like disease, due to hyperactivation of the Nlrp3 inflammasome leading to enhanced interleukin-1β secretion and CNS inflammation. Finally, we confirm a Nlrp3 inflammasome signature and IL-1β expression in brain and cerebrospinal fluid from MS patients. Collectively, these data reveal a critical role for A20 in the control of microglia activation and neuroinflammation. As resident macrophages of the brain, microglia are important for neuroinflammatory responses. This work shows that nuclear factor kappa B regulatory protein A20 is important for microglia activation and regulation during inflammation of the central nervous system.
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Affiliation(s)
- Sofie Voet
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Conor Mc Guire
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium.,VIB Center for Medical Biotechnology, B-9052, Ghent, Belgium.,Department of Biochemistry and Microbiology, Ghent University, B-9052, Ghent, Belgium
| | - Nora Hagemeyer
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, D-79106, Freiburg, Germany
| | - Arne Martens
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Anna Schroeder
- VIB Center for Brain & Disease Research, B-3000, Leuven, Belgium.,Department of Neurosciences, KU Leuven, B-3000, Leuven, Belgium
| | - Peter Wieghofer
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, D-79106, Freiburg, Germany.,Institute of Anatomy, University of Leipzig, Leipzig, D-04103, Germany
| | - Carmen Daems
- Department of Human Genetics, KU Leuven, B-3000, Leuven, Belgium
| | - Ori Staszewski
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, D-79106, Freiburg, Germany
| | - Lieselotte Vande Walle
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Internal Medicine, Ghent University, B-9052, Ghent, Belgium
| | - Marta Joana Costa Jordao
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, D-79106, Freiburg, Germany
| | - Mozes Sze
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Hanna-Kaisa Vikkula
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Delphine Demeestere
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Griet Van Imschoot
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Charlotte L Scott
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Esther Hoste
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Amanda Gonçalves
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium.,VIB Bio-Imaging Core, B-9052, Ghent, Belgium
| | - Martin Guilliams
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Saskia Lippens
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium.,VIB Bio-Imaging Core, B-9052, Ghent, Belgium
| | - Claude Libert
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Roos E Vandenbroucke
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium
| | - Ki-Wook Kim
- Department of Immunology, Weizmann Institute of Science, I-76100, Rehovot, Israel.,Department of Pathology and Immunology, Washington University of Medicine, St. Louis, MO, 63110, USA
| | - Steffen Jung
- Department of Immunology, Weizmann Institute of Science, I-76100, Rehovot, Israel
| | | | | | - Joris de Wit
- VIB Center for Brain & Disease Research, B-3000, Leuven, Belgium.,Department of Neurosciences, KU Leuven, B-3000, Leuven, Belgium
| | - Mohamed Lamkanfi
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium.,Department of Internal Medicine, Ghent University, B-9052, Ghent, Belgium
| | - Marco Prinz
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, D-79106, Freiburg, Germany.,BIOSS Centre for Biological Signalling Studies, University of Freiburg, D79106, Freiburg, Germany
| | - Geert van Loo
- VIB Center for Inflammation Research, B-9052, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, B-9052, Ghent, Belgium.
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47
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Van Quickelberghe E, Martens A, Goeminne LJE, Clement L, van Loo G, Gevaert K. Identification of Immune-Responsive Gene 1 (IRG1) as a Target of A20. J Proteome Res 2018; 17:2182-2191. [DOI: 10.1021/acs.jproteome.8b00139] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Arne Martens
- VIB-UGent Center
for Inflammation Research, B-9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, B-9052 Ghent, Belgium
| | | | | | - Geert van Loo
- VIB-UGent Center
for Inflammation Research, B-9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, B-9052 Ghent, Belgium
| | - Kris Gevaert
- VIB-UGent Center
for Medical Biotechnology, B-9000 Ghent, Belgium
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48
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Abstract
Optineurin (OPTN) was identified 20 years ago in a yeast-two-hybrid screen with a viral protein known to inhibit the cytolytic effects of tumor necrosis factor. Since then, OPTN has been identified as a ubiquitin-binding protein involved in many signaling pathways and cellular processes, and mutations in the OPTN gene have been associated with glaucoma, Paget’s disease of bone and neurodegenerative pathologies. Its role in autophagy, however, has attracted most attention in recent years and may explain (some of) the mechanisms behind the disease-associated mutations of OPTN. In this brief review, we focus on the role of OPTN in inflammation and immunity and describe how this may translate to its involvement in human disease.
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Affiliation(s)
- Karolina Slowicka
- Unit of Cellular and Molecular Pathophysiology, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Geert van Loo
- Unit of Cellular and Molecular Pathophysiology, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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49
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Abstract
Adipose tissue is a special tissue environment due to its high lipid content. Adipose tissue macrophages (ATMs) help maintain adipose tissue homeostasis in steady state by clearing dead adipocytes. However, adipose tissue changes drastically during obesity, resulting in a state of chronic low grade inflammation and a shift in the adipose immune landscape. In this review we will discuss how these changes influence the polarization of ATMs.
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Affiliation(s)
- Leen Catrysse
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, B-9052 Ghent, Belgium
| | - Geert van Loo
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, B-9052 Ghent, Belgium.
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50
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Prabakaran T, Bodda C, Krapp C, Zhang BC, Christensen MH, Sun C, Reinert L, Cai Y, Jensen SB, Skouboe MK, Nyengaard JR, Thompson CB, Lebbink RJ, Sen GC, van Loo G, Nielsen R, Komatsu M, Nejsum LN, Jakobsen MR, Gyrd-Hansen M, Paludan SR. Attenuation of cGAS-STING signaling is mediated by a p62/SQSTM1-dependent autophagy pathway activated by TBK1. EMBO J 2018; 37:embj.201797858. [PMID: 29496741 DOI: 10.15252/embj.201797858] [Citation(s) in RCA: 255] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 01/30/2018] [Accepted: 02/02/2018] [Indexed: 12/18/2022] Open
Abstract
Negative regulation of immune pathways is essential to achieve resolution of immune responses and to avoid excess inflammation. DNA stimulates type I IFN expression through the DNA sensor cGAS, the second messenger cGAMP, and the adaptor molecule STING Here, we report that STING degradation following activation of the pathway occurs through autophagy and is mediated by p62/SQSTM1, which is phosphorylated by TBK1 to direct ubiquitinated STING to autophagosomes. Degradation of STING was impaired in p62-deficient cells, which responded with elevated IFN production to foreign DNA and DNA pathogens. In the absence of p62, STING failed to traffic to autophagy-associated vesicles. Thus, DNA sensing induces the cGAS-STING pathway to activate TBK1, which phosphorylates IRF3 to induce IFN expression, but also phosphorylates p62 to stimulate STING degradation and attenuation of the response.
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Affiliation(s)
- Thaneas Prabakaran
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
| | - Chiranjeevi Bodda
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark.,Nuffield Department of Medicine, Ludwig Institute for Cancer Research, University of Oxford, Oxford, UK
| | - Christian Krapp
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
| | - Bao-Cun Zhang
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
| | - Maria H Christensen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
| | - Chenglong Sun
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
| | - Line Reinert
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
| | - Yujia Cai
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
| | - Søren B Jensen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
| | - Morten K Skouboe
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
| | - Jens R Nyengaard
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Craig B Thompson
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Robert Jan Lebbink
- Medical Microbiology, University Medical Center, Utrecht, The Netherlands
| | - Ganes C Sen
- Department of Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Geert van Loo
- Inflammation Research Center, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Rikke Nielsen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Masaaki Komatsu
- Department of Biochemistry, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Lene N Nejsum
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Martin R Jakobsen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
| | - Mads Gyrd-Hansen
- Nuffield Department of Medicine, Ludwig Institute for Cancer Research, University of Oxford, Oxford, UK
| | - Søren R Paludan
- Department of Biomedicine, Aarhus University, Aarhus, Denmark .,Aarhus Research Center for Innate Immunity, Aarhus University, Aarhus, Denmark
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