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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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2
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Chauhan D, Demon D, Vande Walle L, Paerewijck O, Zecchin A, Bosseler L, Santoni K, Planès R, Ribo S, Fossoul A, Gonçalves A, Van Gorp H, Van Opdenbosch N, Van Hauwermeiren F, Meunier E, Wullaert A, Lamkanfi M. GSDMD drives canonical inflammasome-induced neutrophil pyroptosis and is dispensable for NETosis. EMBO Rep 2022; 23:e54277. [PMID: 35899491 PMCID: PMC9535806 DOI: 10.15252/embr.202154277] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [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: 11/04/2021] [Revised: 06/17/2022] [Accepted: 07/07/2022] [Indexed: 07/22/2023] Open
Abstract
Neutrophils are the most prevalent immune cells in circulation, but the repertoire of canonical inflammasomes in neutrophils and their respective involvement in neutrophil IL-1β secretion and neutrophil cell death remain unclear. Here, we show that neutrophil-targeted expression of the disease-associated gain-of-function Nlrp3A350V mutant suffices for systemic autoinflammatory disease and tissue pathology in vivo. We confirm the activity of the canonical NLRP3 and NLRC4 inflammasomes in neutrophils, and further show that the NLRP1b, Pyrin and AIM2 inflammasomes also promote maturation and secretion of interleukin (IL)-1β in cultured bone marrow neutrophils. Notably, all tested canonical inflammasomes promote GSDMD cleavage in neutrophils, and canonical inflammasome-induced pyroptosis and secretion of mature IL-1β are blunted in GSDMD-knockout neutrophils. In contrast, GSDMD is dispensable for PMA-induced NETosis. We also show that Salmonella Typhimurium-induced pyroptosis is markedly increased in Nox2/Gp91Phox -deficient neutrophils that lack NADPH oxidase activity and are defective in PMA-induced NETosis. In conclusion, we establish the canonical inflammasome repertoire in neutrophils and identify differential roles for GSDMD and the NADPH complex in canonical inflammasome-induced neutrophil pyroptosis and mitogen-induced NETosis, respectively.
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Affiliation(s)
- Dhruv Chauhan
- Janssen Immunosciences, World Without Disease AcceleratorPharmaceutical Companies of Johnson & JohnsonBeerseBelgium
| | - Dieter Demon
- Department of Internal Medicine and PaediatricsGhent UniversityGhentBelgium
- VIB‐UGent Center for Inflammation Research, VIBGhentBelgium
| | - Lieselotte Vande Walle
- Department of Internal Medicine and PaediatricsGhent UniversityGhentBelgium
- VIB‐UGent Center for Inflammation Research, VIBGhentBelgium
| | - Oonagh Paerewijck
- Department of Internal Medicine and PaediatricsGhent UniversityGhentBelgium
| | - Annalisa Zecchin
- Janssen Immunosciences, World Without Disease AcceleratorPharmaceutical Companies of Johnson & JohnsonBeerseBelgium
| | - Leslie Bosseler
- Nonclinical Safety, Janssen Research & DevelopmentPharmaceutical Companies of Johnson & JohnsonBeerseBelgium
| | - Karin Santoni
- Institute of Pharmacology and Structural Biology (IPBS)University of Toulouse, CNRSToulouseFrance
| | - Rémi Planès
- Institute of Pharmacology and Structural Biology (IPBS)University of Toulouse, CNRSToulouseFrance
| | - Silvia Ribo
- Department of Internal Medicine and PaediatricsGhent UniversityGhentBelgium
- VIB‐UGent Center for Inflammation Research, VIBGhentBelgium
| | - Amelie Fossoul
- Department of Internal Medicine and PaediatricsGhent UniversityGhentBelgium
- VIB‐UGent Center for Inflammation Research, VIBGhentBelgium
| | - Amanda Gonçalves
- VIB‐UGent Center for Inflammation Research, VIBGhentBelgium
- VIB BioImaging CoreGhentBelgium
| | - Hanne Van Gorp
- Department of Internal Medicine and PaediatricsGhent UniversityGhentBelgium
- VIB‐UGent Center for Inflammation Research, VIBGhentBelgium
| | - Nina Van Opdenbosch
- Janssen Immunosciences, World Without Disease AcceleratorPharmaceutical Companies of Johnson & JohnsonBeerseBelgium
- Department of Internal Medicine and PaediatricsGhent UniversityGhentBelgium
- VIB‐UGent Center for Inflammation Research, VIBGhentBelgium
| | - Filip Van Hauwermeiren
- Janssen Immunosciences, World Without Disease AcceleratorPharmaceutical Companies of Johnson & JohnsonBeerseBelgium
- Department of Internal Medicine and PaediatricsGhent UniversityGhentBelgium
- VIB‐UGent Center for Inflammation Research, VIBGhentBelgium
| | - Etienne Meunier
- Institute of Pharmacology and Structural Biology (IPBS)University of Toulouse, CNRSToulouseFrance
| | - Andy Wullaert
- Department of Internal Medicine and PaediatricsGhent UniversityGhentBelgium
- VIB‐UGent Center for Inflammation Research, VIBGhentBelgium
- Laboratory of Protein Chemistry, Proteomics and Epigenetic Signalling, Department of Biomedical SciencesUniversity of AntwerpAntwerpBelgium
| | - Mohamed Lamkanfi
- Department of Internal Medicine and PaediatricsGhent UniversityGhentBelgium
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3
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Walle LV, Stowe IB, Šácha P, Lee BL, Demon D, Fossoul A, Van Hauwermeiren F, Saavedra PHV, Šimon P, Šubr V, Kostka L, Stivala CE, Pham VC, Staben ST, Yamazoe S, Konvalinka J, Kayagaki N, Lamkanfi M. Correction: MCC950/CRID3 potently targets the NACHT domain of wild-type NLRP3 but not disease-associated mutants for inflammasome inhibition. PLoS Biol 2019; 17:e3000529. [PMID: 31618263 PMCID: PMC6795414 DOI: 10.1371/journal.pbio.3000529] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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4
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Van Opdenbosch N, Van Gorp H, Verdonckt M, Saavedra PHV, de Vasconcelos NM, Gonçalves A, Vande Walle L, Demon D, Matusiak M, Van Hauwermeiren F, D'Hont J, Hochepied T, Krautwald S, Kanneganti TD, Lamkanfi M. Caspase-1 Engagement and TLR-Induced c-FLIP Expression Suppress ASC/Caspase-8-Dependent Apoptosis by Inflammasome Sensors NLRP1b and NLRC4. Cell Rep 2018; 21:3427-3444. [PMID: 29262324 PMCID: PMC5746600 DOI: 10.1016/j.celrep.2017.11.088] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/15/2017] [Accepted: 11/27/2017] [Indexed: 02/02/2023] Open
Abstract
The caspase activation and recruitment domain (CARD)-based inflammasome sensors NLRP1b and NLRC4 induce caspase-1-dependent pyroptosis independent of the inflammasome adaptor ASC. Here, we show that NLRP1b and NLRC4 trigger caspase-8-mediated apoptosis as an alternative cell death program in caspase-1-/- macrophages and intestinal epithelial organoids (IECs). The caspase-8 adaptor FADD was recruited to ASC specks, which served as cytosolic platforms for caspase-8 activation and NLRP1b/NLRC4-induced apoptosis. We further found that caspase-1 protease activity dominated over scaffolding functions in suppressing caspase-8 activation and induction of apoptosis of macrophages and IECs. Moreover, TLR-induced c-FLIP expression inhibited caspase-8-mediated apoptosis downstream of ASC speck assembly, but did not affect pyroptosis induction by NLRP1b and NLRC4. Moreover, unlike during pyroptosis, NLRP1b- and NLRC4-elicited apoptosis retained alarmins and the inflammasome-matured cytokines interleukin 1β (IL-1β) and IL-18 intracellularly. This work identifies critical mechanisms regulating apoptosis induction by the inflammasome sensors NLRP1b and NLRC4 and suggests converting pyroptosis into apoptosis as a paradigm for suppressing inflammation.
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Affiliation(s)
- Nina Van Opdenbosch
- Department of Internal Medicine, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Hanne Van Gorp
- Department of Internal Medicine, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Maarten Verdonckt
- Department of Internal Medicine, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Pedro H V Saavedra
- Department of Internal Medicine, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Nathalia M de Vasconcelos
- Department of Internal Medicine, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Amanda Gonçalves
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium; VIB Bioimaging Core, VIB, 9000 Ghent, Belgium
| | - Lieselotte Vande Walle
- Department of Internal Medicine, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Dieter Demon
- Department of Internal Medicine, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Magdalena Matusiak
- Department of Internal Medicine, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Filip Van Hauwermeiren
- Department of Internal Medicine, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium
| | - Jinke D'Hont
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Tino Hochepied
- VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Stefan Krautwald
- Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | | | - Mohamed Lamkanfi
- Department of Internal Medicine, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium.
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5
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Hassane M, Demon D, Soulard D, Fontaine J, Keller LE, Patin EC, Porte R, Prinz I, Ryffel B, Kadioglu A, Veening JW, Sirard JC, Faveeuw C, Lamkanfi M, Trottein F, Paget C. Neutrophilic NLRP3 inflammasome-dependent IL-1β secretion regulates the γδT17 cell response in respiratory bacterial infections. Mucosal Immunol 2017; 10:1056-1068. [PMID: 28051086 DOI: 10.1038/mi.2016.113] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 10/24/2016] [Indexed: 02/04/2023]
Abstract
Traditionally regarded as simple foot soldiers of the innate immune response limited to the eradication of pathogens, neutrophils recently emerged as more complex cells endowed with a set of immunoregulatory functions. Using a model of invasive pneumococcal disease, we highlighted an unexpected key role for neutrophils as accessory cells in innate interleukin (IL)-17A production by lung resident Vγ6Vδ1+ T cells via nucleotide-binding oligomerization domain receptor, pyrin-containing 3 (NLRP3) inflammasome-dependent IL-1β secretion. In vivo activation of the NLRP3 inflammasome in neutrophils required both host-derived and bacterial-derived signals. Elaborately, it relies on (i) alveolar macrophage-secreted TNF-α for priming and (ii) subsequent exposure to bacterial pneumolysin for activation. Interestingly, this mechanism can be translated to human neutrophils. Our work revealed the cellular and molecular dynamic events leading to γδT17 cell activation, and highlighted for the first time the existence of a fully functional NLRP3 inflammasome in lung neutrophils. This immune axis thus regulates the development of a protective host response to respiratory bacterial infections.
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Affiliation(s)
- M Hassane
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France.,Laboratoire Microbiologie Santé et Environnement, Ecole doctorale en Sciences et Technologies/ Faculté de Santé Publique, Université Libanaise, Tripoli, Liban
| | - D Demon
- Inflammation Research Center, VIB, Zwijnaarde, Belgium.,Department of Internal Medicine, Ghent University, Ghent, Belgium
| | - D Soulard
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
| | - J Fontaine
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
| | - L E Keller
- Molecular Genetics Group, Groningen Biomolecular Sciences and Biotechnology Institute, Centre for Synthetic Biology, University of Groningen, Groningen, The Netherlands
| | - E C Patin
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
| | - R Porte
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
| | - I Prinz
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - B Ryffel
- CNRS, UMR7355, Experimental and Molecular Immunology and Neurogenetics, University, Orléans, France and IDM, University of Cape Town, RSA
| | - A Kadioglu
- Department of Clinical Infection, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
| | - J-W Veening
- Molecular Genetics Group, Groningen Biomolecular Sciences and Biotechnology Institute, Centre for Synthetic Biology, University of Groningen, Groningen, The Netherlands
| | - J-C Sirard
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
| | - C Faveeuw
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
| | - M Lamkanfi
- Inflammation Research Center, VIB, Zwijnaarde, Belgium.,Department of Internal Medicine, Ghent University, Ghent, Belgium
| | - F Trottein
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
| | - C Paget
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
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6
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Rankin LC, Girard-Madoux MJH, Seillet C, Mielke LA, Kerdiles Y, Fenis A, Wieduwild E, Putoczki T, Mondot S, Lantz O, Demon D, Papenfuss AT, Smyth GK, Lamkanfi M, Carotta S, Renauld JC, Shi W, Carpentier S, Soos T, Arendt C, Ugolini S, Huntington ND, Belz GT, Vivier E. Complementarity and redundancy of IL-22-producing innate lymphoid cells. Nat Immunol 2016; 17:179-86. [PMID: 26595889 PMCID: PMC4720992 DOI: 10.1038/ni.3332] [Citation(s) in RCA: 192] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 10/23/2015] [Indexed: 02/07/2023]
Abstract
Intestinal T cells and group 3 innate lymphoid cells (ILC3 cells) control the composition of the microbiota and gut immune responses. Within the gut, ILC3 subsets coexist that either express or lack the natural cytoxicity receptor (NCR) NKp46. We identified here the transcriptional signature associated with the transcription factor T-bet-dependent differentiation of NCR(-) ILC3 cells into NCR(+) ILC3 cells. Contrary to the prevailing view, we found by conditional deletion of the key ILC3 genes Stat3, Il22, Tbx21 and Mcl1 that NCR(+) ILC3 cells were redundant for the control of mouse colonic infection with Citrobacter rodentium in the presence of T cells. However, NCR(+) ILC3 cells were essential for cecal homeostasis. Our data show that interplay between intestinal ILC3 cells and adaptive lymphocytes results in robust complementary failsafe mechanisms that ensure gut homeostasis.
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Affiliation(s)
- Lucille C Rankin
- The Walter and Eliza Hall Institute of Medical Research, and Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Mathilde J H Girard-Madoux
- Centre d'Immunologie de Marseille-Luminy, Université d'Aix-Marseille UM2, Inserm, U1104, CNRS UMR7280, Marseille, France
| | - Cyril Seillet
- The Walter and Eliza Hall Institute of Medical Research, and Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Lisa A Mielke
- The Walter and Eliza Hall Institute of Medical Research, and Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Yann Kerdiles
- Centre d'Immunologie de Marseille-Luminy, Université d'Aix-Marseille UM2, Inserm, U1104, CNRS UMR7280, Marseille, France
| | - Aurore Fenis
- Centre d'Immunologie de Marseille-Luminy, Université d'Aix-Marseille UM2, Inserm, U1104, CNRS UMR7280, Marseille, France
| | - Elisabeth Wieduwild
- Centre d'Immunologie de Marseille-Luminy, Université d'Aix-Marseille UM2, Inserm, U1104, CNRS UMR7280, Marseille, France
| | - Tracy Putoczki
- The Walter and Eliza Hall Institute of Medical Research, and Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
| | | | - Olivier Lantz
- Laboratoire d'Immunologie and Inserm U932, Institut Curie, Paris, France
| | - Dieter Demon
- Inflammation Research Center, VIB, Ghent University, Ghent, Belgium
- Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Anthony T Papenfuss
- The Walter and Eliza Hall Institute of Medical Research, and Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Gordon K Smyth
- The Walter and Eliza Hall Institute of Medical Research, and Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Mathematics and Statistics, University of Melbourne, Parkville, Australia
| | - Mohamed Lamkanfi
- Inflammation Research Center, VIB, Ghent University, Ghent, Belgium
- Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Sebastian Carotta
- The Walter and Eliza Hall Institute of Medical Research, and Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
- Boehringer-Ingelheim RCV, Vienna, Austria
| | - Jean-Christophe Renauld
- Ludwig Institute for Cancer Research and Experimental Medicine Unit, Catholic University of Louvain, Brussels, Belgium
| | - Wei Shi
- The Walter and Eliza Hall Institute of Medical Research, and Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Computing and Information Systems, University of Melbourne, Parkville, Australia
| | - Sabrina Carpentier
- MI-mAbs consortium Aix-Marseille University, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Tim Soos
- Bioinnovation, SANOFI, Boston, Massachusetts, USA
| | | | - Sophie Ugolini
- Centre d'Immunologie de Marseille-Luminy, Université d'Aix-Marseille UM2, Inserm, U1104, CNRS UMR7280, Marseille, France
| | - Nicholas D Huntington
- The Walter and Eliza Hall Institute of Medical Research, and Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Gabrielle T Belz
- The Walter and Eliza Hall Institute of Medical Research, and Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Eric Vivier
- Centre d'Immunologie de Marseille-Luminy, Université d'Aix-Marseille UM2, Inserm, U1104, CNRS UMR7280, Marseille, France
- Immunologie, Hôpital de la Conception, Assistance Publique-Hôpitaux de Marseille, Marseille, France
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7
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Ydens E, Demon D, Lornet G, De Winter V, Timmerman V, Lamkanfi M, Janssens S. Nlrp6 promotes recovery after peripheral nerve injury independently of inflammasomes. J Neuroinflammation 2015; 12:143. [PMID: 26253422 PMCID: PMC4528710 DOI: 10.1186/s12974-015-0367-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [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: 02/16/2015] [Accepted: 07/24/2015] [Indexed: 11/19/2022] Open
Abstract
Background NOD-like receptors (Nlrs) are key regulators of immune responses during infection and autoimmunity. A subset of Nlrs assembles inflammasomes, molecular platforms that are activated in response to endogenous danger and microbial ligands and that control release of interleukin (IL)-1β and IL-18. However, their role in response to injury in the nervous system is less understood. Methods In this study, we investigated the expression profile of major inflammasome components in the peripheral nervous system (PNS) and explored the physiological role of different Nlrs upon acute nerve injury in mice. Results While in basal conditions, predominantly members of NOD-like receptor B (Nlrb) subfamily (NLR family, apoptosis inhibitory proteins (NAIPs)) and Nlrc subfamily (ICE-protease activating factor (IPAF)/NOD) are detected in the sciatic nerve, injury causes a shift towards expression of the Nlrp family. Sterile nerve injury also leads to an increase in expression of the Nlrb subfamily, while bacteria trigger expression of the Nlrc subfamily. Interestingly, loss of Nlrp6 led to strongly impaired nerve function upon nerve crush. Loss of the inflammasome adaptor apoptosis-associated speck-like protein containing a CARD (ASC) and effector caspase-1 and caspase-11 did not affect sciatic nerve function, suggesting that Nlrp6 contributed to recovery after peripheral nerve injury independently of inflammasomes. In line with this, we did not detect release of mature IL-1β upon acute nerve injury despite potent induction of pro-IL-1β and inflammasome components Nlrp3 and Nlrp1. However, Nlrp6 deficiency was associated with increased pro-inflammatory extracellular regulated MAP kinase (ERK) signaling, suggesting that hyperinflammation in the absence of Nlrp6 exacerbated peripheral nerve injury. Conclusions Together, our observations suggest that Nlrp6 contributes to recovery from peripheral nerve injury by dampening inflammatory responses independently of IL-1β and inflammasomes.
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Affiliation(s)
- Elke Ydens
- Peripheral Neuropathy Group, Department of Molecular Genetics, VIB and University of Antwerp, Universiteitsplein 1, B-2610, Wilrijk, Antwerpen, Belgium. .,Neurogenetics Laboratory, Institute Born-Bunge and University of Antwerp, Universiteitsplein 1, B-2610, Antwerpen, Belgium.
| | - Dieter Demon
- Department of Medical Protein Research, VIB, Gent, Belgium. .,Department of Biochemistry, Ghent University, Gent, Belgium.
| | - Guillaume Lornet
- Unit Immunoregulation and Mucosal Immunology, GROUP-ID Consortium, VIB Inflammation Research Centre, Technologiepark 927, B-9052, Gent, Belgium. .,Department of Internal Medicine, Ghent University, Gent, Belgium.
| | - Vicky De Winter
- Peripheral Neuropathy Group, Department of Molecular Genetics, VIB and University of Antwerp, Universiteitsplein 1, B-2610, Wilrijk, Antwerpen, Belgium. .,Neurogenetics Laboratory, Institute Born-Bunge and University of Antwerp, Universiteitsplein 1, B-2610, Antwerpen, Belgium.
| | - Vincent Timmerman
- Peripheral Neuropathy Group, Department of Molecular Genetics, VIB and University of Antwerp, Universiteitsplein 1, B-2610, Wilrijk, Antwerpen, Belgium. .,Neurogenetics Laboratory, Institute Born-Bunge and University of Antwerp, Universiteitsplein 1, B-2610, Antwerpen, Belgium.
| | - Mohamed Lamkanfi
- Department of Medical Protein Research, VIB, Gent, Belgium. .,Department of Biochemistry, Ghent University, Gent, Belgium.
| | - Sophie Janssens
- Unit Immunoregulation and Mucosal Immunology, GROUP-ID Consortium, VIB Inflammation Research Centre, Technologiepark 927, B-9052, Gent, Belgium. .,Department of Internal Medicine, Ghent University, Gent, Belgium.
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8
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Saavedra PHV, Demon D, Van Gorp H, Lamkanfi M. Protective and detrimental roles of inflammasomes in disease. Semin Immunopathol 2015; 37:313-22. [PMID: 25895577 DOI: 10.1007/s00281-015-0485-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 03/23/2015] [Indexed: 10/23/2022]
Abstract
Over recent years, inflammasomes have emerged as key regulators of immune and inflammatory responses. They induce programmed cell death and direct the release of danger signals and the inflammatory cytokines interleukin (IL)-1β and IL-18. The concerted actions of inflammasomes are of utmost importance for responding adequately to harmful environmental agents and infections. However, deregulated inflammasome signaling is increasingly linked to a diversity of human pathologies, including rheumatoid arthritis, inflammatory bowel disease, and rare, hereditary periodic fever syndromes. In this review, we discuss recent insight in the protective and detrimental roles of inflammasomes in selected infectious, autoinflammatory and autoimmune diseases, and cover clinically approved therapies that interfere with inflammasome signaling. These findings highlight the importance of fine-balancing the Ying and Yang activities of inflammasomes for sustained homeostasis and suggest that further understanding of inflammasome mechanisms may offer new cures for human diseases.
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Affiliation(s)
- Pedro H V Saavedra
- Department of Medical Protein Research, VIB, Albert Baertsoenkaai 3, B-9000, Ghent, Belgium
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9
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Diabate M, Munro P, Garcia E, Jacquel A, Michel G, Obba S, Goncalves D, Luci C, Marchetti S, Demon D, Degos C, Bechah Y, Mege JL, Lamkanfi M, Auberger P, Gorvel JP, Stuart LM, Landraud L, Lemichez E, Boyer L. Escherichia coli α-hemolysin counteracts the anti-virulence innate immune response triggered by the Rho GTPase activating toxin CNF1 during bacteremia. PLoS Pathog 2015; 11:e1004732. [PMID: 25781937 PMCID: PMC4363529 DOI: 10.1371/journal.ppat.1004732] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [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: 09/05/2014] [Accepted: 02/06/2015] [Indexed: 12/02/2022] Open
Abstract
The detection of the activities of pathogen-encoded virulence factors by the innate immune system has emerged as a new paradigm of pathogen recognition. Much remains to be determined with regard to the molecular and cellular components contributing to this defense mechanism in mammals and importance during infection. Here, we reveal the central role of the IL-1β signaling axis and Gr1+ cells in controlling the Escherichia coli burden in the blood in response to the sensing of the Rho GTPase-activating toxin CNF1. Consistently, this innate immune response is abrogated in caspase-1/11-impaired mice or following the treatment of infected mice with an IL-1β antagonist. In vitro experiments further revealed the synergistic effects of CNF1 and LPS in promoting the maturation/secretion of IL-1β and establishing the roles of Rac, ASC and caspase-1 in this pathway. Furthermore, we found that the α-hemolysin toxin inhibits IL-1β secretion without affecting the recruitment of Gr1+ cells. Here, we report the first example of anti-virulence-triggered immunity counteracted by a pore-forming toxin during bacteremia. The pathogenic potentials of most microbes depend on a repertoire of virulence factors. Despite major progress in the understanding of the molecular mechanisms underlying the activities of bacterial effectors, little is known about how they cooperate during infection to overcome host immune defenses and promote microbial persistence. Here, we investigated the roles of two uropathogenic Escherichia coli (UPEC) effectors that are co-ordinately expressed, α-hemolysin (HlyA) and cytotoxic necrotizing factor 1 (CNF1). We demonstrated that the HlyA toxin is critical for bacterial stability in the blood and showed that one important role of HlyA is to inhibit the CNF1-induced host response. Collectively, these findings reveal why the coordinated activities of HlyA and CNF1 are necessary for the full virulence of UPEC. Moreover, they unravel a HlyA-driven counter-defense mechanism used by bacteria to facilitate their survival.
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Affiliation(s)
- Mamady Diabate
- INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Toxines Microbiennes dans la relation hôte pathogènes, Nice, France; Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France; Laboratoire de Bactériologie, CHU de Nice, Hôpital l'Archet, Nice, France
| | - Patrick Munro
- INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Toxines Microbiennes dans la relation hôte pathogènes, Nice, France; Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France
| | - Elsa Garcia
- INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Toxines Microbiennes dans la relation hôte pathogènes, Nice, France; Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France
| | - Arnaud Jacquel
- Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France; INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Mort Cellulaire, Differentiation et Cancer, Nice, France
| | - Gregory Michel
- INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Toxines Microbiennes dans la relation hôte pathogènes, Nice, France; Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France
| | - Sandrine Obba
- Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France; INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Mort Cellulaire, Differentiation et Cancer, Nice, France
| | - Diogo Goncalves
- Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France; INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Mort Cellulaire, Differentiation et Cancer, Nice, France
| | - Carmelo Luci
- Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France; CNRS UMR7275, IPMC, Sophia Antipolis, France
| | - Sandrine Marchetti
- Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France; INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Mort Cellulaire, Differentiation et Cancer, Nice, France
| | - Dieter Demon
- Department of Medical Protein Research, VIB, Ghent, Belgium; Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Clara Degos
- Aix-Marseille University UM 2, INSERM U 1104, CNRS UMR 7280, Marseille, France
| | - Yassina Bechah
- Unité de Recherche sur les Maladies Infectieuses Tropicales et Emergentes, CNRS UMR 6236, Faculté de Médecine, Marseille, France
| | - Jean-Louis Mege
- Unité de Recherche sur les Maladies Infectieuses Tropicales et Emergentes, CNRS UMR 6236, Faculté de Médecine, Marseille, France
| | - Mohamed Lamkanfi
- Department of Medical Protein Research, VIB, Ghent, Belgium; Department of Biochemistry, Ghent University, Ghent, Belgium
| | - Patrick Auberger
- Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France; INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Mort Cellulaire, Differentiation et Cancer, Nice, France
| | - Jean-Pierre Gorvel
- Aix-Marseille University UM 2, INSERM U 1104, CNRS UMR 7280, Marseille, France
| | - Lynda Maria Stuart
- Benaroya Research Institute at Virginia Mason, Seattle, Washington, United States of America
| | - Luce Landraud
- INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Toxines Microbiennes dans la relation hôte pathogènes, Nice, France; Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France; Laboratoire de Bactériologie, CHU de Nice, Hôpital l'Archet, Nice, France
| | - Emmanuel Lemichez
- INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Toxines Microbiennes dans la relation hôte pathogènes, Nice, France; Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France
| | - Laurent Boyer
- INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, C3M, Toxines Microbiennes dans la relation hôte pathogènes, Nice, France; Université de Nice-Sophia-Antipolis, UFR Médecine, Nice, France
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10
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Demon D, Vande Walle L, Lamkanfi M. Sensing the enemy within: how macrophages detect intracellular Gram-negative bacteria. Trends Biochem Sci 2014; 39:574-6. [PMID: 25458607 PMCID: PMC4247376 DOI: 10.1016/j.tibs.2014.10.006] [Citation(s) in RCA: 10] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 10/20/2014] [Accepted: 10/21/2014] [Indexed: 11/18/2022]
Abstract
Caspase-11 contributes to host defense against Gram-negative bacterial pathogens by inducing an inflammatory form of programmed cell death in infected cells. Lipopolysaccharides (LPS) have been identified as the microbial agents that stimulate caspase-11 activation; however, the mechanism of LPS detection has been unknown. In a recent study, Shao and colleagues demonstrate that caspase-11 and its human homologues, caspases -4 and -5, unexpectedly act as direct sensors of cytosolic LPS.
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Affiliation(s)
- Dieter Demon
- Department of Medical Protein Research, VIB, Ghent, B-9000, Belgium; Department of Biochemistry, Ghent University, Ghent, B-9000, Belgium
| | - Lieselotte Vande Walle
- Department of Medical Protein Research, VIB, Ghent, B-9000, Belgium; Department of Biochemistry, Ghent University, Ghent, B-9000, Belgium
| | - Mohamed Lamkanfi
- Department of Medical Protein Research, VIB, Ghent, B-9000, Belgium; Department of Biochemistry, Ghent University, Ghent, B-9000, Belgium.
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11
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Demon D, Kuchmiy A, Fossoul A, Zhu Q, Kanneganti TD, Lamkanfi M. Caspase-11 is expressed in the colonic mucosa and protects against dextran sodium sulfate-induced colitis. Mucosal Immunol 2014; 7:1480-91. [PMID: 24850431 PMCID: PMC4205216 DOI: 10.1038/mi.2014.36] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [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: 12/05/2013] [Accepted: 04/14/2014] [Indexed: 02/04/2023]
Abstract
Ulcerative colitis and Crohn's disease are major inflammatory syndromes that affect millions of patients. Caspase-11 confers protection against Gram-negative enteropathogens, but its role during colitis is unknown. Here, we show that caspase-11 was constitutively expressed in the colon, and that caspase-11-deficient (caspase-11(-/-)) mice were hypersusceptible to dextran sodium sulfate (DSS)-induced colitis. Notably, pro-inflammatory Prevotella species were strongly reduced in the gut microbiota of caspase-11(-/-) mice. Co-housing with wild-type mice leveled Prevotella contents, but failed to protect caspase-11(-/-) mice from increased susceptibility to DSS-induced colitis. We therefore addressed the role of caspase-11 in immune signaling. DSS-induced tissue damage and inflammatory cell infiltration in the gut were markedly increased in caspase-11−/− mice, while release of the pyroptosis/necroptosis marker HMGB1 was abolished [Corrected]. Moreover, caspase-11(-/-) mice showed normal or increased production of mature interleukin (IL)-1β and IL-18, whereas IL-1β and IL-18 secretion was blunted in animals lacking both caspases 1 and 11. In conclusion, we showed that caspase-11 shapes the gut microbiota composition, and that caspase-11(-/-) mice are highly susceptible to DSS-induced colitis. Moreover, DSS-induced inflammasome activation relied on caspase-1, but not caspase-11. These results suggest a role for other caspase-11 effector mechanisms such as pyroptosis in protection against intestinal inflammation.
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Affiliation(s)
- Dieter Demon
- Department of Medical Protein Research, VIB, Ghent, B-9000, Belgium,Department of Biochemistry, Ghent University, Ghent, B-9000, Belgium
| | - Anna Kuchmiy
- Department of Medical Protein Research, VIB, Ghent, B-9000, Belgium,Department of Biochemistry, Ghent University, Ghent, B-9000, Belgium
| | - Amelie Fossoul
- Department of Medical Protein Research, VIB, Ghent, B-9000, Belgium,Department of Biochemistry, Ghent University, Ghent, B-9000, Belgium
| | - Qifan Zhu
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN, 38105-2794, USA
| | | | - Mohamed Lamkanfi
- Department of Medical Protein Research, VIB, Ghent, B-9000, Belgium,Department of Biochemistry, Ghent University, Ghent, B-9000, Belgium
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12
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Demon D, Kuchmiy A, Fossoul A, Zhu Q, Kanneganti TD, Lamkanfi M. Erratum: Caspase-11 is expressed in the colonic mucosa and protects against dextran sodium sulfate-induced colitis. Mucosal Immunol 2014. [DOI: 10.1038/mi.2014.83] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Breyne K, Cool SK, Demon D, Demeyere K, Vandenberghe T, Vandenabeele P, Carlsen H, Van Den Broeck W, Sanders NN, Meyer E. Non-classical proIL-1beta activation during mammary gland infection is pathogen-dependent but caspase-1 independent. PLoS One 2014; 9:e105680. [PMID: 25162221 PMCID: PMC4146512 DOI: 10.1371/journal.pone.0105680] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [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: 03/28/2014] [Accepted: 07/22/2014] [Indexed: 01/15/2023] Open
Abstract
Infection of the mammary gland with live bacteria elicits a pathogen-specific host inflammatory response. To study these host-pathogen interactions wild type mice, NF-kappaB reporter mice as well as caspase-1 and IL-1beta knockout mice were intramammarily challenged with Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). The murine mastitis model allowed to compare the kinetics of the induced cytokine protein profiles and their underlying pathways. In vivo and ex vivo imaging showed that E. coli rapidly induced NF-kappaB inflammatory signaling concomitant with high mammary levels of TNF-alpha, IL-1 alpha and MCP-1 as determined by multiplex analysis. In contrast, an equal number of S. aureus bacteria induced a low NF-kappaB activity concomitant with high mammary levels of the classical IL-1beta fragment. These quantitative and qualitative differences in local inflammatory mediators resulted in an earlier neutrophil influx and in a more extensive alveolar damage post-infection with E. coli compared to S. aureus. Western blot analysis revealed that the inactive proIL-1beta precursor was processed into pathogen-specific IL-1beta fragmentation patterns as confirmed with IL-1beta knockout animals. Additionally, caspase-1 knockout animals allowed to investigate whether IL-1beta maturation depended on the conventional inflammasome pathway. The lack of caspase-1 did not prevent extensive proIL-1beta fragmentation by either of S. aureus or E. coli. These non-classical IL-1beta patterns were likely caused by different proteases and suggest a sentinel function of IL-1beta during mammary gland infection. Thus, a key signaling nodule can be defined in the differential host innate immune defense upon E. coli versus S. aureus mammary gland infection, which is independent of caspase-1.
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Affiliation(s)
- Koen Breyne
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
- * E-mail:
| | - Steven K. Cool
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Dieter Demon
- Department of Medical Protein Research, Vlaams Instituut voor Biotechnologie (VIB), Ghent University, Ghent, Belgium
| | - Kristel Demeyere
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Tom Vandenberghe
- Department for Molecular Biomedical Research, Vlaams Instituut voor Biotechnologie (VIB), Ghent University, Zwijnaarde, Belgium
| | - Peter Vandenabeele
- Department for Molecular Biomedical Research, Vlaams Instituut voor Biotechnologie (VIB), Ghent University, Zwijnaarde, Belgium
| | - Harald Carlsen
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Wim Van Den Broeck
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Niek N. Sanders
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Evelyne Meyer
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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14
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Berghe TV, Demon D, Bogaert P, Vandendriessche B, Goethals A, Depuydt B, Vuylsteke M, Roelandt R, Van Wonterghem E, Vandenbroecke J, Choi SM, Meyer E, Krautwald S, Declercq W, Takahashi N, Cauwels A, Vandenabeele P. Simultaneous targeting of interleukin-1 and interleukin-18 is required for protection against inflammatory and septic shock. Crit Care 2014. [PMCID: PMC4273742 DOI: 10.1186/cc14023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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15
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Berghe TV, Demon D, Bogaert P, Vandendriessche B, Goethals A, Depuydt B, Vuylsteke M, Roelandt R, Van Wonterghem E, Vandenbroecke J, Choi SM, Meyer E, Krautwald S, Declercq W, Takahashi N, Cauwels A, Vandenabeele P. Simultaneous Targeting of IL-1 and IL-18 Is Required for Protection against Inflammatory and Septic Shock. Am J Respir Crit Care Med 2014; 189:282-91. [DOI: 10.1164/rccm.201308-1535oc] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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16
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Demon D, Breyne K, Schiffer G, Meyer E. Short communication: Antimicrobial efficacy of intramammary treatment with a novel biphenomycin compound against Staphylococcus aureus, Streptococcus uberis, and Escherichia coli-induced mouse mastitis. J Dairy Sci 2013; 96:7082-7087. [PMID: 24054294 DOI: 10.3168/jds.2013-7011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [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: 05/08/2013] [Accepted: 08/09/2013] [Indexed: 11/19/2022]
Abstract
Bovine mastitis undermines udder health, jeopardizes milk production, and entails prohibitive costs, estimated at $2 billion per year in the dairy industry of the United States. Despite intensive research, the dairy industry has not managed to eradicate the 3 major bovine mastitis-inducing pathogens: Staphylococcus aureus, Streptococcus uberis, and Escherichia coli. In this study, the antimicrobial efficacy of a newly formulated biphenomycin compound (AIC102827) was assessed against intramammary Staph. aureus, Strep. uberis, and E. coli infections, using an experimental mouse mastitis model. Based on its effective and protective doses, AIC102827 applied into the mammary gland was most efficient to treat Staph. aureus, but also adequately reduced growth of Strep. uberis or E. coli, indicating its potential as a broad-spectrum candidate to treat staphylococcal, streptococcal, and coliform mastitis in dairy cattle.
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Affiliation(s)
- Dieter Demon
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - Koen Breyne
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Guido Schiffer
- AiCuris GmbH & Co. KG, Building 302, 42117 Wuppertal, Germany
| | - Evelyne Meyer
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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17
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Berghe TV, Goethals A, Demon D, Bogaert P, Mak TW, Cauwels A, Vandenabeele P. An Inactivating Caspase-11 Passenger Mutation Muddles Sepsis Research. Am J Respir Crit Care Med 2013; 188:120-1. [DOI: 10.1164/rccm.201210-1775le] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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18
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Demeyere K, Remijsen Q, Demon D, Breyne K, Notebaert S, Boyen F, Guérin CJ, Vandenabeele P, Meyer E. Escherichia coli induces bovine neutrophil cell death independent from caspase-3/-7/-1, but with phosphatidylserine exposure prior to membrane rupture. Vet Immunol Immunopathol 2013; 153:45-56. [PMID: 23510559 DOI: 10.1016/j.vetimm.2013.02.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 01/11/2013] [Accepted: 02/04/2013] [Indexed: 12/20/2022]
Abstract
Neutrophils are essential for the innate immune response against bacterial pathogens and play a key role during the early phases of infection, including mastitis and endometritis in cows. When directly challenged with bacteria, neutrophils undergo phagocytosis induced cell death (PICD). The molecular mechanisms of this cell death modality are poorly understood, especially for bovine neutrophils. Therefore, this study aimed to determine the mechanisms and hallmarks of PICD in bovine neutrophils after in vitro challenge with Escherichia coli (E. coli). Our data show that various apoptotic hallmarks such as blebbing, chromatin condensation and executioner caspase (C)-3/-7 activity are only observed during constitutive bovine neutrophil apoptosis. In contrast, bovine neutrophil PICD is characterized by production of reactive oxygen species (ROS), pro-inflammatory C-1 activation, nuclear factor (NF)-κB activation, and interleukin (IL)-1β and IL-6 secretion. Nevertheless, under both conditions these phagocytes undergo cell death with the exposure of phosphatidylserine (PS). Although PS exposure is generally attributed to the anti-inflammatory features of executioner caspase-dependent apoptosis, it surprisingly preceded plasma membrane rupture during bovine neutrophil PICD. Moreover, C-1 inhibition strongly affected IL-1β production but not the PICD kinetics. This indicates that the secretion of the latter pro-inflammatory cytokine is a bystander effect rather than a regulator of PICD in bovine neutrophils, in marked contrast to the IL-1β-dependent pyroptosis reported for macrophages.
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Affiliation(s)
- Kristel Demeyere
- Laboratory of Biochemistry, Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
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19
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Gurung P, Malireddi RKS, Anand PK, Demon D, Vande Walle L, Liu Z, Vogel P, Lamkanfi M, Kanneganti TD. Toll or interleukin-1 receptor (TIR) domain-containing adaptor inducing interferon-β (TRIF)-mediated caspase-11 protease production integrates Toll-like receptor 4 (TLR4) protein- and Nlrp3 inflammasome-mediated host defense against enteropathogens. J Biol Chem 2012; 287:34474-83. [PMID: 22898816 DOI: 10.1074/jbc.m112.401406] [Citation(s) in RCA: 200] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Enteric pathogens represent a major cause of morbidity and mortality worldwide. Toll-like receptor (TLR) and inflammasome signaling are critical for host responses against these pathogens, but how these pathways are integrated remains unclear. Here, we show that TLR4 and the TLR adaptor TRIF are required for inflammasome activation in macrophages infected with the enteric pathogens Escherichia coli and Citrobacter rodentium. In contrast, TLR4 and TRIF were dispensable for Salmonella typhimurium-induced caspase-1 activation. TRIF regulated expression of caspase-11, a caspase-1-related protease that is critical for E. coli- and C. rodentium-induced inflammasome activation, but dispensable for inflammasome activation by S. typhimurium. Thus, TLR4- and TRIF-induced caspase-11 synthesis is critical for noncanonical Nlrp3 inflammasome activation in macrophages infected with enteric pathogens.
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Affiliation(s)
- Prajwal Gurung
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
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20
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Maddens B, Ghesquière B, Vanholder R, Demon D, Vanmassenhove J, Gevaert K, Meyer E. Chitinase-like proteins are candidate biomarkers for sepsis-induced acute kidney injury. Mol Cell Proteomics 2012; 11:M111.013094. [PMID: 22233884 DOI: 10.1074/mcp.m111.013094] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Sepsis-induced acute kidney injury (AKI) is a frequent complication of critically ill patients and leads to high mortality rates. The specificity of currently available urinary biomarkers for AKI in the context of sepsis is questioned. This study aimed to discover urinary biomarkers for septic AKI by contemporary shotgun proteomics in a mouse model for sepsis and to validate these in individual urine samples of mice and human septic patients with and without AKI. At 48 h after uterine ligation and inoculation of Escherichia coli, aged mice (48 weeks) became septic. A subgroup developed AKI, defined by serum creatinine, blood urea nitrogen, and renal histology. Separate pools of urine from septic mice with and without AKI mice were collected during 12 h before and between 36-48 h after infection, and their proteome compositions were quantitatively compared. Candidate biomarkers were validated by Western blot analysis of urine, plasma, and renal tissue homogenates from individual mice, and a limited number of urine samples from human septic patients with and without AKI. Urinary neutrophil gelatinase-associated lipocalin, thioredoxin, gelsolin, chitinase 3-like protein 1 and -3 (CHI3L3) and acidic mammalian chitinase were the most distinctive candidate biomarkers selected for septic AKI. Both neutrophil gelatinase-associated lipocalin and thioredoxin were detected in urine of septic mice and increased with severity of AKI. Acidic mammalian chitinase was only present in urine of septic mice with AKI. Both urinary chitinase 3-like protein 1 and -3 were only detected in septic mice with severe AKI. The human homologue chitinase 3-like protein 1 was found to be more excreted in urine from septic patients with AKI than without. In summary, urinary chitinase 3-like protein 1 and -3 and acidic mammalian chitinase discriminated sepsis from sepsis-induced AKI in mice. Further studies of human chitinase proteins are likely to lead to additional insights in septic AKI.
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Affiliation(s)
- B Maddens
- Department of Pharmacology, Toxicology and Biochemistry, Ghent University, Salisburylaan, Belgium
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21
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Le Maréchal C, Jardin J, Jan G, Even S, Pulido C, Guibert JM, Hernandez D, François P, Schrenzel J, Demon D, Meyer E, Berkova N, Thiéry R, Vautor E, Le Loir Y. Staphylococcus aureus seroproteomes discriminate ruminant isolates causing mild or severe mastitis. Vet Res 2011; 42:35. [PMID: 21324116 PMCID: PMC3052181 DOI: 10.1186/1297-9716-42-35] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [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: 10/18/2010] [Accepted: 02/15/2011] [Indexed: 11/24/2022] Open
Abstract
Staphylococcus aureus is a major cause of mastitis in ruminants. In ewe mastitis, symptoms range from subclinical to gangrenous mastitis. S. aureus factors or host-factors contributing to the different outcomes are not completely elucidated. In this study, experimental mastitis was induced on primiparous ewes using two S. aureus strains, isolated from gangrenous (strain O11) or subclinical (strain O46) mastitis. Strains induced drastically distinct clinical symptoms when tested in ewe and mice experimental mastitis. Notably, they reproduced mild (O46) or severe (O11) mastitis in ewes. Ewe sera were used to identify staphylococcal immunoreactive proteins commonly or differentially produced during infections of variable severity and to define core and accessory seroproteomes. Such SERological Proteome Analysis (SERPA) allowed the identification of 89 immunoreactive proteins, of which only 52 (58.4%) were previously identified as immunogenic proteins in other staphylococcal infections. Among the 89 proteins identified, 74 appear to constitute the core seroproteome. Among the 15 remaining proteins defining the accessory seroproteome, 12 were specific for strain O11, 3 were specific for O46. Distribution of one protein specific for each mastitis severity was investigated in ten other strains isolated from subclinical or clinical mastitis. We report here for the first time the identification of staphylococcal immunogenic proteins common or specific to S. aureus strains responsible for mild or severe mastitis. These findings open avenues in S. aureus mastitis studies as some of these proteins, expressed in vivo, are likely to account for the success of S. aureus as a pathogen of the ruminant mammary gland.
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Affiliation(s)
- Caroline Le Maréchal
- INRA, UMR1253 Science et Technologie du Lait et de l'Œuf, F-35042 Rennes, France.
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22
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Maddens BE, Daminet S, Demeyere K, Demon D, Smets P, Meyer E. Validation of immunoassays for the candidate renal markers C-reactive protein, immunoglobulin G, thromboxane B2 and retinol binding protein in canine urine. Vet Immunol Immunopathol 2010; 134:259-64. [DOI: 10.1016/j.vetimm.2009.09.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Revised: 08/19/2009] [Accepted: 09/16/2009] [Indexed: 11/24/2022]
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Demon D, Van Damme P, Vanden Berghe T, Vandekerckhove J, Declercq W, Gevaert K, Vandenabeele P. Caspase substrates: easily caught in deep waters? Trends Biotechnol 2009; 27:680-8. [PMID: 19879007 DOI: 10.1016/j.tibtech.2009.09.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Revised: 09/18/2009] [Accepted: 09/22/2009] [Indexed: 11/29/2022]
Abstract
Caspases are key players in various cellular processes, such as apoptosis, proliferation and differentiation, and in pathological conditions including cancer and inflammation. Although caspases preferentially cleave C-terminal of aspartic acid residues, their action is restricted generally to one or a few sites per protein substrate. Caspase-specific substrate recognition appears to be determined by the substrate sequences adjacent to the scissile bond. Knowledge of these substrates and the generated fragments is crucial for a thorough understanding of the functional implications of caspase-mediated proteolysis. In addition, insight into the cleavage specificity might assist in designing inhibitors that target disease-related caspase activities. Here, we critically review recently published procedures used to generate a proteome-wide view of caspase substrates.
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Affiliation(s)
- Dieter Demon
- Department for Molecular Biomedical Research, VIB, B-9052 Ghent, Belgium
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24
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Demon D, Van Damme P, Vanden Berghe T, Deceuninck A, Van Durme J, Verspurten J, Helsens K, Impens F, Wejda M, Schymkowitz J, Rousseau F, Madder A, Vandekerckhove J, Declercq W, Gevaert K, Vandenabeele P. Proteome-wide substrate analysis indicates substrate exclusion as a mechanism to generate caspase-7 versus caspase-3 specificity. Mol Cell Proteomics 2009; 8:2700-14. [PMID: 19759058 DOI: 10.1074/mcp.m900310-mcp200] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Caspase-3 and -7 are considered functionally redundant proteases with similar proteolytic specificities. We performed a proteome-wide screen on a mouse macrophage lysate using the N-terminal combined fractional diagonal chromatography technology and identified 46 shared, three caspase-3-specific, and six caspase-7-specific cleavage sites. Further analysis of these cleavage sites and substitution mutation experiments revealed that for certain cleavage sites a lysine at the P5 position contributes to the discrimination between caspase-7 and -3 specificity. One of the caspase-7-specific substrates, the 40 S ribosomal protein S18, was studied in detail. The RPS18-derived P6-P5' undecapeptide retained complete specificity for caspase-7. The corresponding P6-P1 hexapeptide still displayed caspase-7 preference but lost strict specificity, suggesting that P' residues are additionally required for caspase-7-specific cleavage. Analysis of truncated peptide mutants revealed that in the case of RPS18 the P4-P1 residues constitute the core cleavage site but that P6, P5, P2', and P3' residues critically contribute to caspase-7 specificity. Interestingly, specific cleavage by caspase-7 relies on excluding recognition by caspase-3 and not on increasing binding for caspase-7.
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Affiliation(s)
- Dieter Demon
- Department for Molecular Biomedical Research, Flanders Institute for Biotechnology (VIB), Ghent 9052, Belgium
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Notebaert S, Demon D, Vanden Berghe T, Vandenabeele P, Meyer E. Inflammatory mediators in Escherichia coli-induced mastitis in mice. Comp Immunol Microbiol Infect Dis 2008; 31:551-65. [PMID: 18243314 DOI: 10.1016/j.cimid.2007.10.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2007] [Revised: 10/17/2007] [Accepted: 10/25/2007] [Indexed: 10/22/2022]
Abstract
Escherichia coli (E. coli) infections in mouse mammary glands are rarely described and poorly characterized. In order to investigate the host immune response during coliform mastitis, several inflammatory parameters were evaluated at 24 and 48h following inoculation of mouse mammary glands with E. coli. Successfully challenged mice showed high values of the acute phase protein serum amyloid A (SAA) in blood. Systemic concentrations of the major inflammatory cytokines tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) were also increased as compared to control mice, while interleukin-1 (IL-1) levels remained negligible. Infected mammary glands showed a significant increase of all cytokine levels as compared to control glands. In accordance, mammary expression of the biologically inactive proform of IL-1beta was strongly up-regulated. Remarkably, data obtained in wild type as well as caspase-1 knockout mice showed that IL-1beta maturation seemed to occur independently from caspase-1. Finally, E. coli infection also triggered activation of the nuclear transcription factor-kappaB (NF-kappaB) in the mammary gland. In conclusion, the current study provides novel insights on the contribution of major regulatory proteins to the acute inflammatory host response at the local and systemic level during E. coli mastitis in mice.
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Affiliation(s)
- Sofie Notebaert
- Laboratory of Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
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