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Deddouche S, Matt N, Budd A, Mueller S, Kemp C, Galiana-Arnoux D, Dostert C, Antoniewski C, Hoffmann JA, Imler JL. Author Correction: The DExD/H-box helicase Dicer-2 mediates the induction of antiviral activity in drosophila. Nat Immunol 2024:10.1038/s41590-024-01800-5. [PMID: 38491311 DOI: 10.1038/s41590-024-01800-5] [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: 03/18/2024]
Affiliation(s)
- Safia Deddouche
- UnitéPropre de Recherché9022, Centre National de la Recherche Scientifique, Institut de Biologie Molé culaire et Cellulaire, Strasbourg, France
| | - Nicolas Matt
- UnitéPropre de Recherché9022, Centre National de la Recherche Scientifique, Institut de Biologie Molé culaire et Cellulaire, Strasbourg, France
| | - Aidan Budd
- European Molecular Biology Laboratory, Heidelberg, Germany
| | - Stefanie Mueller
- UnitéPropre de Recherché9022, Centre National de la Recherche Scientifique, Institut de Biologie Molé culaire et Cellulaire, Strasbourg, France
| | - Cordula Kemp
- UnitéPropre de Recherché9022, Centre National de la Recherche Scientifique, Institut de Biologie Molé culaire et Cellulaire, Strasbourg, France
| | - Delphine Galiana-Arnoux
- UnitéPropre de Recherché9022, Centre National de la Recherche Scientifique, Institut de Biologie Molé culaire et Cellulaire, Strasbourg, France
- Institute of Functional Genomics of Lyon-Unités Mixtes de Recherche 5242, Ecole Normale Supé rieure de Lyon, Lyon, Cedex 07, France
| | - Catherine Dostert
- UnitéPropre de Recherché9022, Centre National de la Recherche Scientifique, Institut de Biologie Molé culaire et Cellulaire, Strasbourg, France
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Christophe Antoniewski
- Department of Developmental Biology, Centre National de la Recherche Scientifique URA2578, Institut Pasteur, Paris, France
| | - Jules A Hoffmann
- UnitéPropre de Recherché9022, Centre National de la Recherche Scientifique, Institut de Biologie Molé culaire et Cellulaire, Strasbourg, France
| | - Jean-Luc Imler
- UnitéPropre de Recherché9022, Centre National de la Recherche Scientifique, Institut de Biologie Molé culaire et Cellulaire, Strasbourg, France.
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Bonetti L, Horkova V, Longworth J, Guerra L, Kurniawan H, Franchina DG, Soriano-Baguet L, Grusdat M, Spath S, Koncina E, Ewen A, Binsfeld C, Verschueren C, Gérardy JJ, Kobayashi T, Dostert C, Farinelle S, Härm J, Chen Y, Harris IS, Lang PA, Vasiliou V, Waisman A, Letellier E, Becher B, Mittelbronn M, Brenner D. A Th17 cell-intrinsic glutathione/mitochondrial-IL-22 axis protects against intestinal inflammation. bioRxiv 2023:2023.07.06.547932. [PMID: 37489135 PMCID: PMC10363291 DOI: 10.1101/2023.07.06.547932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
Although the intestinal tract is a major site of reactive oxygen species (ROS) generation, the mechanisms by which antioxidant defense in gut T cells contribute to intestinal homeostasis are currently unknown. Here we show, using T cell-specific ablation of the catalytic subunit of glutamate cysteine ligase (Gclc), that the ensuing loss of glutathione (GSH) impairs the production of gut-protective IL-22 by Th17 cells within the lamina propria. Although Gclc ablation does not affect T cell cytokine secretion in the gut of mice at steady-state, infection with C. rodentium increases ROS, inhibits mitochondrial gene expression and mitochondrial function in Gclc-deficient Th17 cells. These mitochondrial deficits affect the PI3K/AKT/mTOR pathway, leading to reduced phosphorylation of the translation repressor 4E-BP1. As a consequence, the initiation of translation is restricted, resulting in decreased protein synthesis of IL-22. Loss of IL-22 results in poor bacterial clearance, enhanced intestinal damage, and high mortality. ROS-scavenging, reconstitution of IL-22 expression or IL-22 supplementation in vivo prevent the appearance of these pathologies. Our results demonstrate the existence of a previously unappreciated role for Th17 cell-intrinsic GSH coupling to promote mitochondrial function, IL-22 translation and signaling. These data reveal an axis that is essential for maintaining the integrity of the intestinal barrier and protecting it from damage caused by gastrointestinal infection.
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Affiliation(s)
- Lynn Bonetti
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Veronika Horkova
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Joseph Longworth
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Luana Guerra
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Henry Kurniawan
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Davide G. Franchina
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Leticia Soriano-Baguet
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Melanie Grusdat
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Sabine Spath
- Institute of Experimental Immunology, Inflammation Research, University of Zurich, 8057 Zurich, Switzerland
- Center for Fundamental Immunology, Benaroya Research Institute; Seattle, WA 98101, USA
| | - Eric Koncina
- Molecular Disease Mechanisms Group, Department of Life Sciences and Medicine, University of Luxembourg, Belval, Luxembourg
| | - Anouk Ewen
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Carole Binsfeld
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Charlène Verschueren
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Jean-Jacques Gérardy
- National Center of Pathology (NCP), Laboratoire National de Santé (LNS), Dudelange, Luxembourg
- Luxembourg Center of Neuropathology (LCNP), Dudelange, L-3555, Luxembourg
| | - Takumi Kobayashi
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Catherine Dostert
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Sophie Farinelle
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Janika Härm
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Ying Chen
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, Connecticut, USA
| | - Isaac S. Harris
- Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Philipp A. Lang
- Department of Molecular Medicine II, Medical Faculty Heinrich Heine University Düsseldorf, Germany
| | - Vasilis Vasiliou
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, Connecticut, USA
| | - Ari Waisman
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Elisabeth Letellier
- Molecular Disease Mechanisms Group, Department of Life Sciences and Medicine, University of Luxembourg, Belval, Luxembourg
| | - Burkhard Becher
- Institute of Experimental Immunology, Inflammation Research, University of Zurich, 8057 Zurich, Switzerland
| | - Michel Mittelbronn
- National Center of Pathology (NCP), Laboratoire National de Santé (LNS), Dudelange, Luxembourg
- Luxembourg Center of Neuropathology (LCNP), Dudelange, L-3555, Luxembourg
- Department of Life Sciences and Medicine (DLSM), University of Luxembourg, Esch-sur-Alzette, Luxembourg
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, L-4362, Luxembourg
- Faculty of Science, Technology and Medicine (FSTM), University of Luxembourg, Esch-sur-Alzette, Luxembourg
- Department of Cancer Research (DoCR), Luxembourg Institute of Health (LIH), Luxembourg, L-1526, Luxembourg
| | - Dirk Brenner
- Experimental and Molecular Immunology, Dept. of Infection and Immunity (DII), Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology & Genetics, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
- Odense Research Center for Anaphylaxis (ORCA), Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark
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Soriano-Baguet L, Grusdat M, Kurniawan H, Benzarti M, Binsfeld C, Ewen A, Longworth J, Bonetti L, Guerra L, Franchina DG, Kobayashi T, Horkova V, Verschueren C, Helgueta S, Gérard D, More TH, Henne A, Dostert C, Farinelle S, Lesur A, Gérardy JJ, Jäger C, Mittelbronn M, Sinkkonen L, Hiller K, Meiser J, Brenner D. Pyruvate dehydrogenase fuels a critical citrate pool that is essential for Th17 cell effector functions. Cell Rep 2023; 42:112153. [PMID: 36848289 DOI: 10.1016/j.celrep.2023.112153] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 12/05/2022] [Accepted: 02/07/2023] [Indexed: 02/27/2023] Open
Abstract
Pyruvate dehydrogenase (PDH) is the central enzyme connecting glycolysis and the tricarboxylic acid (TCA) cycle. The importance of PDH function in T helper 17 (Th17) cells still remains to be studied. Here, we show that PDH is essential for the generation of a glucose-derived citrate pool needed for Th17 cell proliferation, survival, and effector function. In vivo, mice harboring a T cell-specific deletion of PDH are less susceptible to developing experimental autoimmune encephalomyelitis. Mechanistically, the absence of PDH in Th17 cells increases glutaminolysis, glycolysis, and lipid uptake in a mammalian target of rapamycin (mTOR)-dependent manner. However, cellular citrate remains critically low in mutant Th17 cells, which interferes with oxidative phosphorylation (OXPHOS), lipid synthesis, and histone acetylation, crucial for transcription of Th17 signature genes. Increasing cellular citrate in PDH-deficient Th17 cells restores their metabolism and function, identifying a metabolic feedback loop within the central carbon metabolism that may offer possibilities for therapeutically targeting Th17 cell-driven autoimmunity.
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Affiliation(s)
- Leticia Soriano-Baguet
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Melanie Grusdat
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Henry Kurniawan
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Mohaned Benzarti
- Cancer Metabolism Group, Department of Cancer Research, Luxembourg Institute of Health, Luxembourg, Luxembourg; Faculty of Science, Technology, and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Carole Binsfeld
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Anouk Ewen
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Joseph Longworth
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Lynn Bonetti
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Luana Guerra
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Davide G Franchina
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Takumi Kobayashi
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Veronika Horkova
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Charlène Verschueren
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Sergio Helgueta
- Luxembourg Center of Neuropathology, 3555 Dudelange, Luxembourg; Epigenetics Team, Systems Biology Group, Department of Life Sciences and Medicine, University of Luxembourg, Belvaux, Luxembourg
| | - Deborah Gérard
- Epigenetics Team, Systems Biology Group, Department of Life Sciences and Medicine, University of Luxembourg, Belvaux, Luxembourg
| | - Tushar H More
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Center of Systems Biology, Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig, Germany
| | - Antonia Henne
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Center of Systems Biology, Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig, Germany
| | - Catherine Dostert
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Sophie Farinelle
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Antoine Lesur
- Metabolomics Platform, Department of Cancer Research, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Jean-Jacques Gérardy
- Luxembourg Center of Neuropathology, 3555 Dudelange, Luxembourg; National Center of Pathology, Laboratoire National de Santé (LNS), Dudelange, Luxembourg
| | - Christian Jäger
- Luxembourg Center for Systems Biomedicine, University of Luxembourg, 4362 Esch-sur-Alzette, Luxembourg
| | - Michel Mittelbronn
- Faculty of Science, Technology, and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg; Luxembourg Center of Neuropathology, 3555 Dudelange, Luxembourg; National Center of Pathology, Laboratoire National de Santé (LNS), Dudelange, Luxembourg; Luxembourg Center for Systems Biomedicine, University of Luxembourg, 4362 Esch-sur-Alzette, Luxembourg; Department of Life Sciences and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg; Department of Cancer Research, Luxembourg Institute of Health, 1526 Luxembourg, Luxembourg
| | - Lasse Sinkkonen
- Epigenetics Team, Systems Biology Group, Department of Life Sciences and Medicine, University of Luxembourg, Belvaux, Luxembourg
| | - Karsten Hiller
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Center of Systems Biology, Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig, Germany
| | - Johannes Meiser
- Cancer Metabolism Group, Department of Cancer Research, Luxembourg Institute of Health, Luxembourg, Luxembourg; Metabolomics Platform, Department of Cancer Research, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Dirk Brenner
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
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Grusdat M, Dostert C, Brenner D. Quantification of lymphocytic choriomeningitis virus specific T cells and LCMV viral titers. Methods Cell Biol 2023; 173:121-131. [PMID: 36653079 DOI: 10.1016/bs.mcb.2022.03.003] [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] [Indexed: 02/04/2023]
Abstract
Lymphocytic choriomeningitis virus (LCMV) is a frequently used animal model to study immune responses against acute and chronic viral infections. LCMV is a non-cytopathic virus, but destruction of infected cells by cytotoxic T lymphocytes (CTLs) can lead to severe damage of tissues. Virus-specific T cell responses have to be balanced. A low virus load leads to a strong T cell response and subsequently to viral control. In contrast, a high viral titer is associated with T cell exhaustion and chronic viral infections. During an intermediate LCMV viral load CD8+ T cells can cause immunopathology, which can have detrimental outcomes. The LCMV infection model offers the opportunity to study virus-specific CD4+ and CD8+ T cell responses during chronic and acute infections by quantifying LCMV-specific T cells by tetramer staining and measuring cytokine production and viral titers in different organs.
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Affiliation(s)
- Melanie Grusdat
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology & Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Catherine Dostert
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology & Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Dirk Brenner
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology & Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis (ORCA), Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
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Heinz A, Nonnenmacher Y, Henne A, Khalil MA, Bejkollari K, Dostert C, Hosseini S, Goldmann O, He W, Palorini R, Verschueren C, Korte M, Chiaradonna F, Medina E, Brenner D, Hiller K. Itaconate controls its own synthesis via feedback-inhibition of reverse TCA cycle activity at IDH2. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166530. [PMID: 36038039 DOI: 10.1016/j.bbadis.2022.166530] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/11/2022] [Accepted: 08/17/2022] [Indexed: 11/18/2022]
Abstract
Macrophages undergo extensive metabolic reprogramming during classical pro-inflammatory polarization (M1-like). The accumulation of itaconate has been recognized as both a consequence and mediator of the inflammatory response. In this study we first examined the specific functions of itaconate inside fractionated mitochondria. We show that M1 macrophages produce itaconate de novo via aconitase decarboxylase 1 (ACOD1) inside mitochondria. The carbon for this reaction is not only supplied by oxidative TCA cycling, but also through the reductive carboxylation of α-ketoglutarate by isocitrate dehydrogenase (IDH). While macrophages are capable of sustaining a certain degree of itaconate production during hypoxia by augmenting the activity of IDH-dependent reductive carboxylation, we demonstrate that sufficient itaconate synthesis requires a balance of reductive and oxidative TCA cycle metabolism in mouse macrophages. In comparison, human macrophages increase itaconate accumulation under hypoxic conditions by augmenting reductive carboxylation activity. We further demonstrated that itaconate attenuates reductive carboxylation at IDH2, restricting its own production and the accumulation of the immunomodulatory metabolites citrate and 2-hydroxyglutarate. In line with this, reductive carboxylation is enhanced in ACOD1-depleted macrophages. Mechanistically, the inhibition of IDH2 by itaconate is linked to the alteration of the mitochondrial NADP+/NADPH ratio and competitive succinate dehydrogenase inhibition. Taken together, our findings extend the current model of TCA cycle reprogramming during pro-inflammatory macrophage activation and identified novel regulatory properties of itaconate.
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Affiliation(s)
- Alexander Heinz
- Department for Bioinformatics and Biochemistry, BRICS, Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig, Germany
| | - Yannic Nonnenmacher
- Department for Bioinformatics and Biochemistry, BRICS, Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig, Germany
| | - Antonia Henne
- Department for Bioinformatics and Biochemistry, BRICS, Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig, Germany
| | - Michelle-Amirah Khalil
- Department for Bioinformatics and Biochemistry, BRICS, Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig, Germany
| | - Ketlin Bejkollari
- Department for Bioinformatics and Biochemistry, BRICS, Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig, Germany
| | - Catherine Dostert
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Shirin Hosseini
- Department of Cellular Neurobiology, Zoological Institute, Technische Universität Braunschweig, Germany
| | - Oliver Goldmann
- Infection Immunology Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Wei He
- Department for Bioinformatics and Biochemistry, BRICS, Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig, Germany
| | - Roberta Palorini
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, Milan, Italy
| | - Charlène Verschueren
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Martin Korte
- Department of Cellular Neurobiology, Zoological Institute, Technische Universität Braunschweig, Germany; Neuroinflammation and Neurodegeneration Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Ferdinando Chiaradonna
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, Milan, Italy
| | - Eva Medina
- Infection Immunology Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dirk Brenner
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for System Biomedicine (LCSB), University of Luxembourg, Belval, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark
| | - Karsten Hiller
- Department for Bioinformatics and Biochemistry, BRICS, Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig, Germany.
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He W, Henne A, Lauterbach M, Geißmar E, Nikolka F, Kho C, Heinz A, Dostert C, Grusdat M, Cordes T, Härm J, Goldmann O, Ewen A, Verschueren C, Blay-Cadanet J, Geffers R, Garritsen H, Kneiling M, Holm CK, Metallo CM, Medina E, Abdullah Z, Latz E, Brenner D, Hiller K. Mesaconate is synthesized from itaconate and exerts immunomodulatory effects in macrophages. Nat Metab 2022; 4:524-533. [PMID: 35655024 PMCID: PMC9744384 DOI: 10.1038/s42255-022-00565-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 03/25/2022] [Indexed: 01/04/2023]
Abstract
Since its discovery in inflammatory macrophages, itaconate has attracted much attention due to its antimicrobial and immunomodulatory activity1-3. However, instead of investigating itaconate itself, most studies used derivatized forms of itaconate and thus the role of non-derivatized itaconate needs to be scrutinized. Mesaconate, a metabolite structurally very close to itaconate, has never been implicated in mammalian cells. Here we show that mesaconate is synthesized in inflammatory macrophages from itaconate. We find that both, non-derivatized itaconate and mesaconate dampen the glycolytic activity to a similar extent, whereas only itaconate is able to repress tricarboxylic acid cycle activity and cellular respiration. In contrast to itaconate, mesaconate does not inhibit succinate dehydrogenase. Despite their distinct impact on metabolism, both metabolites exert similar immunomodulatory effects in pro-inflammatory macrophages, specifically a reduction of interleukin (IL)-6 and IL-12 secretion and an increase of CXCL10 production in a manner that is independent of NRF2 and ATF3. We show that a treatment with neither mesaconate nor itaconate impairs IL-1β secretion and inflammasome activation. In summary, our results identify mesaconate as an immunomodulatory metabolite in macrophages, which interferes to a lesser extent with cellular metabolism than itaconate.
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Affiliation(s)
- Wei He
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Antonia Henne
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Mario Lauterbach
- Institute of Innate Immunity, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Eike Geißmar
- Institute of Innate Immunity, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Fabian Nikolka
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Celia Kho
- Institute of Experimental Immunology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Alexander Heinz
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
| | - Catherine Dostert
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology and Genetics, Luxembourg Centre for System Biomedicine (LCSB), University of Luxembourg, Belval, Luxembourg
| | - Melanie Grusdat
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology and Genetics, Luxembourg Centre for System Biomedicine (LCSB), University of Luxembourg, Belval, Luxembourg
| | - Thekla Cordes
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, USA
- Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Janika Härm
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology and Genetics, Luxembourg Centre for System Biomedicine (LCSB), University of Luxembourg, Belval, Luxembourg
| | - Oliver Goldmann
- Infection Immunology Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Anouk Ewen
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology and Genetics, Luxembourg Centre for System Biomedicine (LCSB), University of Luxembourg, Belval, Luxembourg
| | - Charlène Verschueren
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology and Genetics, Luxembourg Centre for System Biomedicine (LCSB), University of Luxembourg, Belval, Luxembourg
| | | | - Robert Geffers
- Genome Analytics, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Hendrikus Garritsen
- Institute of Transfusion Medicine, Klinikum Braunschweig, Braunschweig, Germany
- Fraunhofer Institute for Surface Engineering and Thin Films IST, Braunschweig, Germany
| | - Manfred Kneiling
- Department of Dermatology, Eberhard Karls University, Tübingen, Germany
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University, Tübingen, Germany
| | | | - Christian M Metallo
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, USA
- Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Eva Medina
- Infection Immunology Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Zeinab Abdullah
- Institute of Experimental Immunology, University Hospital Bonn, University of Bonn, Bonn, Germany
- Department of Immunology, Tehran University of Medical Sciences, Tehran, Iran
| | - Eicke Latz
- Institute of Innate Immunity, University Hospital Bonn, University of Bonn, Bonn, Germany
- German Center for Neurodegenerative Diseases, Bonn, Germany
- Department of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, MA, USA
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway
| | - Dirk Brenner
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Immunology and Genetics, Luxembourg Centre for System Biomedicine (LCSB), University of Luxembourg, Belval, Luxembourg
- Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark
| | - Karsten Hiller
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Centre of Systems Biology (BRICS), Technische Universität Braunschweig, Braunschweig, Germany.
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7
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Kurniawan H, Franchina DG, Guerra L, Bonetti L, -Baguet LS, Grusdat M, Schlicker L, Hunewald O, Dostert C, Merz MP, Binsfeld C, Duncan GS, Farinelle S, Nonnenmacher Y, Haight J, Das Gupta D, Ewen A, Taskesen R, Halder R, Chen Y, Jäger C, Ollert M, Wilmes P, Vasiliou V, Harris IS, Knobbe-Thomsen CB, Turner JD, Mak TW, Lohoff M, Meiser J, Hiller K, Brenner D. Glutathione Restricts Serine Metabolism to Preserve Regulatory T Cell Function. Cell Metab 2020; 31:920-936.e7. [PMID: 32213345 PMCID: PMC7265172 DOI: 10.1016/j.cmet.2020.03.004] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 12/26/2019] [Accepted: 03/02/2020] [Indexed: 01/03/2023]
Abstract
Regulatory T cells (Tregs) maintain immune homeostasis and prevent autoimmunity. Serine stimulates glutathione (GSH) synthesis and feeds into the one-carbon metabolic network (1CMet) essential for effector T cell (Teff) responses. However, serine's functions, linkage to GSH, and role in stress responses in Tregs are unknown. Here, we show, using mice with Treg-specific ablation of the catalytic subunit of glutamate cysteine ligase (Gclc), that GSH loss in Tregs alters serine import and synthesis and that the integrity of this feedback loop is critical for Treg suppressive capacity. Although Gclc ablation does not impair Treg differentiation, mutant mice exhibit severe autoimmunity and enhanced anti-tumor responses. Gclc-deficient Tregs show increased serine metabolism, mTOR activation, and proliferation but downregulated FoxP3. Limitation of cellular serine in vitro and in vivo restores FoxP3 expression and suppressive capacity of Gclc-deficient Tregs. Our work reveals an unexpected role for GSH in restricting serine availability to preserve Treg functionality.
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Affiliation(s)
- Henry Kurniawan
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg
| | - Davide G Franchina
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg
| | - Luana Guerra
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg
| | - Lynn Bonetti
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg
| | - Leticia Soriano -Baguet
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg
| | - Melanie Grusdat
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg
| | - Lisa Schlicker
- Braunschweig Integrated Center of Systems Biology (BRICS), Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig; Computational Biology of Infection Research, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Oliver Hunewald
- Allergy and Clinical Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg
| | - Catherine Dostert
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg
| | - Myriam P Merz
- Immune Endocrine Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Grand Duchy of Luxembourg
| | - Carole Binsfeld
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg
| | - Gordon S Duncan
- The Campbell Family Cancer Research Institute, Ontario Cancer Institute University Health Network, Toronto, ON, Canada
| | - Sophie Farinelle
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg
| | - Yannic Nonnenmacher
- Braunschweig Integrated Center of Systems Biology (BRICS), Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig; Computational Biology of Infection Research, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Jillian Haight
- The Campbell Family Cancer Research Institute, Ontario Cancer Institute University Health Network, Toronto, ON, Canada
| | - Dennis Das Gupta
- Institute for Medical Microbiology and Hospital Hygiene, University of Marburg, Marburg, Germany
| | - Anouk Ewen
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg
| | - Rabia Taskesen
- Departments of Medical Biophysics and Immunology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Rashi Halder
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Ying Chen
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA
| | - Christian Jäger
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Markus Ollert
- Allergy and Clinical Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis (ORCA), Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark
| | - Paul Wilmes
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Vasilis Vasiliou
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA
| | - Isaac S Harris
- Department of Biomedical Genetics and Wilmot Cancer Institute, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, New York, USA
| | - Christiane B Knobbe-Thomsen
- Departments of Medical Biophysics and Immunology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Jonathan D Turner
- Immune Endocrine Epigenetics Research Group, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354 Esch-sur-Alzette, Grand Duchy of Luxembourg
| | - Tak W Mak
- The Campbell Family Cancer Research Institute, Ontario Cancer Institute University Health Network, Toronto, ON, Canada; Departments of Medical Biophysics and Immunology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; The University of Hong Kong, Hong Kong SAR, China
| | - Michael Lohoff
- Institute for Medical Microbiology and Hospital Hygiene, University of Marburg, Marburg, Germany
| | - Johannes Meiser
- Cancer Metabolism Group, Department of Oncology, 84 Val Fleuri, Luxembourg, Luxembourg
| | - Karsten Hiller
- Braunschweig Integrated Center of Systems Biology (BRICS), Technische Universität Braunschweig, Rebenring 56, 38106 Braunschweig; Computational Biology of Infection Research, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Dirk Brenner
- Experimental & Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis (ORCA), Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark; Immunology & Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg.
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8
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Dostert C, Grusdat M, Letellier E, Brenner D. The TNF Family of Ligands and Receptors: Communication Modules in the Immune System and Beyond. Physiol Rev 2019; 99:115-160. [DOI: 10.1152/physrev.00045.2017] [Citation(s) in RCA: 175] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The tumor necrosis factor (TNF) and TNF receptor (TNFR) superfamilies (TNFSF/TNFRSF) include 19 ligands and 29 receptors that play important roles in the modulation of cellular functions. The communication pathways mediated by TNFSF/TNFRSF are essential for numerous developmental, homeostatic, and stimulus-responsive processes in vivo. TNFSF/TNFRSF members regulate cellular differentiation, survival, and programmed death, but their most critical functions pertain to the immune system. Both innate and adaptive immune cells are controlled by TNFSF/TNFRSF members in a manner that is crucial for the coordination of various mechanisms driving either co-stimulation or co-inhibition of the immune response. Dysregulation of these same signaling pathways has been implicated in inflammatory and autoimmune diseases, highlighting the importance of their tight regulation. Investigation of the control of TNFSF/TNFRSF activities has led to the development of therapeutics with the potential to reduce chronic inflammation or promote anti-tumor immunity. The study of TNFSF/TNFRSF proteins has exploded over the last 30 yr, but there remains a need to better understand the fundamental mechanisms underlying the molecular pathways they mediate to design more effective anti-inflammatory and anti-cancer therapies.
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Affiliation(s)
- Catherine Dostert
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark; and Life Sciences Research Unit, Molecular Disease Mechanisms Group, University of Luxembourg, Belvaux, Luxembourg
| | - Melanie Grusdat
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark; and Life Sciences Research Unit, Molecular Disease Mechanisms Group, University of Luxembourg, Belvaux, Luxembourg
| | - Elisabeth Letellier
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark; and Life Sciences Research Unit, Molecular Disease Mechanisms Group, University of Luxembourg, Belvaux, Luxembourg
| | - Dirk Brenner
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark; and Life Sciences Research Unit, Molecular Disease Mechanisms Group, University of Luxembourg, Belvaux, Luxembourg
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9
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Franchina DG, Dostert C, Brenner D. Reactive Oxygen Species: Involvement in T Cell Signaling and Metabolism. Trends Immunol 2018; 39:489-502. [PMID: 29452982 DOI: 10.1016/j.it.2018.01.005] [Citation(s) in RCA: 198] [Impact Index Per Article: 33.0] [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: 10/20/2017] [Revised: 01/08/2018] [Accepted: 01/16/2018] [Indexed: 12/17/2022]
Abstract
T cells are a central component of defenses against pathogens and tumors. Their effector functions are sustained by specific metabolic changes that occur upon activation, and these have been the focus of renewed interest. Energy production inevitably generates unwanted products, namely reactive oxygen species (ROS), which have long been known to trigger cell death. However, there is now evidence that ROS also act as intracellular signaling molecules both in steady-state and upon antigen recognition. The levels and localization of ROS contribute to the redox modeling of effector proteins and transcription factors, influencing the outcome of the T cell response. We discuss here how ROS can directly fine-tune metabolism and effector functions of T cells.
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Affiliation(s)
- Davide G Franchina
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, L-4354 Esch-sur-Alzette, Luxembourg
| | - Catherine Dostert
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, L-4354 Esch-sur-Alzette, Luxembourg
| | - Dirk Brenner
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, L-4354 Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis (ORCA), Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
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10
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Mak TW, Grusdat M, Duncan GS, Dostert C, Nonnenmacher Y, Cox M, Binsfeld C, Hao Z, Brüstle A, Itsumi M, Jäger C, Chen Y, Pinkenburg O, Camara B, Ollert M, Bindslev-Jensen C, Vasiliou V, Gorrini C, Lang PA, Lohoff M, Harris IS, Hiller K, Brenner D. Glutathione Primes T Cell Metabolism for Inflammation. Immunity 2017. [PMID: 28636957 DOI: 10.1016/j.immuni.2017.06.009] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Mak TW, Grusdat M, Duncan GS, Dostert C, Nonnenmacher Y, Cox M, Binsfeld C, Hao Z, Brüstle A, Itsumi M, Jäger C, Chen Y, Pinkenburg O, Camara B, Ollert M, Bindslev-Jensen C, Vasiliou V, Gorrini C, Lang PA, Lohoff M, Harris IS, Hiller K, Brenner D. Glutathione Primes T Cell Metabolism for Inflammation. Immunity 2017; 46:675-689. [PMID: 28423341 DOI: 10.1016/j.immuni.2017.03.019] [Citation(s) in RCA: 261] [Impact Index Per Article: 37.3] [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: 09/23/2016] [Revised: 01/31/2017] [Accepted: 03/29/2017] [Indexed: 01/19/2023]
Abstract
Activated T cells produce reactive oxygen species (ROS), which trigger the antioxidative glutathione (GSH) response necessary to buffer rising ROS and prevent cellular damage. We report that GSH is essential for T cell effector functions through its regulation of metabolic activity. Conditional gene targeting of the catalytic subunit of glutamate cysteine ligase (Gclc) blocked GSH production specifically in murine T cells. Gclc-deficient T cells initially underwent normal activation but could not meet their increased energy and biosynthetic requirements. GSH deficiency compromised the activation of mammalian target of rapamycin-1 (mTOR) and expression of NFAT and Myc transcription factors, abrogating the energy utilization and Myc-dependent metabolic reprogramming that allows activated T cells to switch to glycolysis and glutaminolysis. In vivo, T-cell-specific ablation of murine Gclc prevented autoimmune disease but blocked antiviral defense. The antioxidative GSH pathway thus plays an unexpected role in metabolic integration and reprogramming during inflammatory T cell responses.
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Affiliation(s)
- Tak W Mak
- The Campbell Family Cancer Research Institute and University Health Network, Toronto, ON M5G 2C1, Canada; Departments of Medical Biophysics and Immunology, University of Toronto, Toronto, ON M5G 2M9, Canada.
| | - Melanie Grusdat
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, L-4354, Luxembourg
| | - Gordon S Duncan
- The Campbell Family Cancer Research Institute and University Health Network, Toronto, ON M5G 2C1, Canada
| | - Catherine Dostert
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, L-4354, Luxembourg
| | - Yannic Nonnenmacher
- Technische Universität Braunschweig, Braunschweig Integrated Center of Systems Biology, Braunschweig D-38106, Germany; Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Belvaux, L-4367, Luxembourg
| | - Maureen Cox
- The Campbell Family Cancer Research Institute and University Health Network, Toronto, ON M5G 2C1, Canada
| | - Carole Binsfeld
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, L-4354, Luxembourg
| | - Zhenyue Hao
- The Campbell Family Cancer Research Institute and University Health Network, Toronto, ON M5G 2C1, Canada; The Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S3E1 Canada
| | - Anne Brüstle
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601, Australia
| | - Momoe Itsumi
- Department of Molecular Virology, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan
| | - Christian Jäger
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Belvaux, L-4367, Luxembourg
| | - Ying Chen
- Department of Environmental Health Sciences, Yale School of Public Health, CT 06520, New Haven, USA
| | - Olaf Pinkenburg
- Institute for Medical Microbiology and Hospital Hygiene, University of Marburg, Marburg, D-35032 Germany
| | - Bärbel Camara
- Institute for Medical Microbiology and Hospital Hygiene, University of Marburg, Marburg, D-35032 Germany
| | - Markus Ollert
- Department of Infection and Immunity, Allergy and Clinical Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, L-4354, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, DK-5000, Denmark
| | - Carsten Bindslev-Jensen
- Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, DK-5000, Denmark
| | - Vasilis Vasiliou
- Department of Environmental Health Sciences, Yale School of Public Health, CT 06520, New Haven, USA
| | - Chiara Gorrini
- The Campbell Family Cancer Research Institute and University Health Network, Toronto, ON M5G 2C1, Canada
| | - Philipp A Lang
- Department of Molecular Medicine II, Medical Faculty, University of Düsseldorf, Düsseldorf, D-40225, Germany
| | - Michael Lohoff
- Institute for Medical Microbiology and Hospital Hygiene, University of Marburg, Marburg, D-35032 Germany
| | - Isaac S Harris
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Karsten Hiller
- Technische Universität Braunschweig, Braunschweig Integrated Center of Systems Biology, Braunschweig D-38106, Germany; Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Belvaux, L-4367, Luxembourg; Computational Biology of Infection Research, Helmholtz Centre for Infection Research, Braunschweig, D-38124, Germany
| | - Dirk Brenner
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, Esch-sur-Alzette, L-4354, Luxembourg; Odense Research Center for Anaphylaxis, Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, DK-5000, Denmark.
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12
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Blaser H, Dostert C, Mak TW, Brenner D. TNF and ROS Crosstalk in Inflammation. Trends Cell Biol 2016; 26:249-261. [PMID: 26791157 DOI: 10.1016/j.tcb.2015.12.002] [Citation(s) in RCA: 639] [Impact Index Per Article: 79.9] [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: 09/03/2015] [Revised: 12/03/2015] [Accepted: 12/04/2015] [Indexed: 01/06/2023]
Abstract
Tumor necrosis factor (TNF) is tremendously important for mammalian immunity and cellular homeostasis. The role of TNF as a master regulator in balancing cell survival, apoptosis and necroptosis has been extensively studied in various cell types and tissues. Although these findings have revealed much about the direct impact of TNF on the regulation of NF-κB and JNK, there is now rising interest in understanding the emerging function of TNF as a regulator of the generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS). In this review we summarize work aimed at defining the role of TNF in the control of ROS/RNS signaling that influences innate immune cells under both physiological and inflammatory conditions.
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Affiliation(s)
- Heiko Blaser
- The Campbell Family Cancer Research Institute, Ontario Cancer Institute, University Health Network, Toronto, Ontario, Canada
| | - Catherine Dostert
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, 29, rue Henri Koch, 4354 Esch-sur-Alzette, Luxembourg
| | - Tak W Mak
- The Campbell Family Cancer Research Institute, Ontario Cancer Institute, University Health Network, Toronto, Ontario, Canada; Department of Immunology, University of Toronto, Toronto, Ontario, Canada; Department of Medical Biophysics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Dirk Brenner
- Department of Infection and Immunity, Experimental and Molecular Immunology, Luxembourg Institute of Health, 29, rue Henri Koch, 4354 Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis (ORCA), Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
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Gustin A, Kirchmeyer M, Koncina E, Felten P, Losciuto S, Heurtaux T, Tardivel A, Heuschling P, Dostert C. NLRP3 Inflammasome Is Expressed and Functional in Mouse Brain Microglia but Not in Astrocytes. PLoS One 2015; 10:e0130624. [PMID: 26091541 PMCID: PMC4474809 DOI: 10.1371/journal.pone.0130624] [Citation(s) in RCA: 260] [Impact Index Per Article: 28.9] [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: 02/11/2015] [Accepted: 05/21/2015] [Indexed: 11/19/2022] Open
Abstract
Neuroinflammation is the local reaction of the brain to infection, trauma, toxic molecules or protein aggregates. The brain resident macrophages, microglia, are able to trigger an appropriate response involving secretion of cytokines and chemokines, resulting in the activation of astrocytes and recruitment of peripheral immune cells. IL-1β plays an important role in this response; yet its production and mode of action in the brain are not fully understood and its precise implication in neurodegenerative diseases needs further characterization. Our results indicate that the capacity to form a functional NLRP3 inflammasome and secretion of IL-1β is limited to the microglial compartment in the mouse brain. We were not able to observe IL-1β secretion from astrocytes, nor do they express all NLRP3 inflammasome components. Microglia were able to produce IL-1β in response to different classical inflammasome activators, such as ATP, Nigericin or Alum. Similarly, microglia secreted IL-18 and IL-1α, two other inflammasome-linked pro-inflammatory factors. Cell stimulation with α-synuclein, a neurodegenerative disease-related peptide, did not result in the release of active IL-1β by microglia, despite a weak pro-inflammatory effect. Amyloid-β peptides were able to activate the NLRP3 inflammasome in microglia and IL-1β secretion occurred in a P2X7 receptor-independent manner. Thus microglia-dependent inflammasome activation can play an important role in the brain and especially in neuroinflammatory conditions.
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Affiliation(s)
- Audrey Gustin
- Life Sciences Research Unit, Faculty of Science, Technology and Communication, University of Luxembourg, Luxembourg, Luxembourg
| | - Mélanie Kirchmeyer
- Life Sciences Research Unit, Faculty of Science, Technology and Communication, University of Luxembourg, Luxembourg, Luxembourg
| | - Eric Koncina
- Life Sciences Research Unit, Faculty of Science, Technology and Communication, University of Luxembourg, Luxembourg, Luxembourg
| | - Paul Felten
- Life Sciences Research Unit, Faculty of Science, Technology and Communication, University of Luxembourg, Luxembourg, Luxembourg
| | - Sophie Losciuto
- Life Sciences Research Unit, Faculty of Science, Technology and Communication, University of Luxembourg, Luxembourg, Luxembourg
| | - Tony Heurtaux
- Life Sciences Research Unit, Faculty of Science, Technology and Communication, University of Luxembourg, Luxembourg, Luxembourg
| | - Aubry Tardivel
- Biochemistry Institute, University of Lausanne, Epalinges, Switzerland
| | - Paul Heuschling
- Life Sciences Research Unit, Faculty of Science, Technology and Communication, University of Luxembourg, Luxembourg, Luxembourg
| | - Catherine Dostert
- Life Sciences Research Unit, Faculty of Science, Technology and Communication, University of Luxembourg, Luxembourg, Luxembourg
- * E-mail:
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Dostert C, Müller TJJ. A one-pot dilithiation–lithium–zinc exchange–Negishi coupling approach to 2,6-di(hetero)aryl substituted dithienothiazines – a novel class of electronically fine-tunable redox systems. Org Chem Front 2015. [DOI: 10.1039/c5qo00046g] [Citation(s) in RCA: 9] [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] [Indexed: 01/31/2023]
Abstract
2,6-Di(hetero)aryl substituted dithienothiazines with fine-tunable electronic properties are efficiently accessible by lithiation–lithium–zinc exchange–Negishi cross-coupling in a one-pot fashion.
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Affiliation(s)
- Catherine Dostert
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- 40225 Düsseldorf
- Germany
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- 40225 Düsseldorf
- Germany
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15
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Müller T, Dostert C, Czajkowski D. 2,6-Difunctionalization of N-Substituted Dithienothiazines via Dilithiation. Synlett 2013. [DOI: 10.1055/s-0033-1340307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Kemp C, Mueller S, Goto A, Barbier V, Paro S, Bonnay F, Dostert C, Troxler L, Hetru C, Meignin C, Pfeffer S, Hoffmann JA, Imler JL. Broad RNA interference-mediated antiviral immunity and virus-specific inducible responses in Drosophila. J Immunol 2012; 190:650-8. [PMID: 23255357 DOI: 10.4049/jimmunol.1102486] [Citation(s) in RCA: 186] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The fruit fly Drosophila melanogaster is a good model to unravel the molecular mechanisms of innate immunity and has led to some important discoveries about the sensing and signaling of microbial infections. The response of Drosophila to virus infections remains poorly characterized and appears to involve two facets. On the one hand, RNA interference involves the recognition and processing of dsRNA into small interfering RNAs by the host RNase Dicer-2 (Dcr-2), whereas, on the other hand, an inducible response controlled by the evolutionarily conserved JAK-STAT pathway contributes to the antiviral host defense. To clarify the contribution of the small interfering RNA and JAK-STAT pathways to the control of viral infections, we have compared the resistance of flies wild-type and mutant for Dcr-2 or the JAK kinase Hopscotch to infections by seven RNA or DNA viruses belonging to different families. Our results reveal a unique susceptibility of hop mutant flies to infection by Drosophila C virus and cricket paralysis virus, two members of the Dicistroviridae family, which contrasts with the susceptibility of Dcr-2 mutant flies to many viruses, including the DNA virus invertebrate iridescent virus 6. Genome-wide microarray analysis confirmed that different sets of genes were induced following infection by Drosophila C virus or by two unrelated RNA viruses, Flock House virus and Sindbis virus. Overall, our data reveal that RNA interference is an efficient antiviral mechanism, operating against a large range of viruses, including a DNA virus. By contrast, the antiviral contribution of the JAK-STAT pathway appears to be virus specific.
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Affiliation(s)
- Cordula Kemp
- CNRS-UPR9022, Institut de Biologie Moléculaire et Cellulaire, 67084 Strasbourg Cedex, France
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Dostert C, Wanstrath C, Frank W, Müller TJJ. 4H-dithieno[2,3-b:3',2'-e][1,4]thiazines--synthesis and electronic properties of a novel class of electron rich redox systems. Chem Commun (Camb) 2012; 48:7271-3. [PMID: 22699424 DOI: 10.1039/c2cc32731g] [Citation(s) in RCA: 20] [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] [Indexed: 11/21/2022]
Abstract
Quantum chemical screening reveals that 4H-dithieno[2,3-b:3',2'-e][1,4]thiazines possess the highest HOMO among four constitutional isomers, even 0.27 eV higher in energy than the well established 10H-phenothiazine. N-Substituted 4H-dithieno[2,3-b:3',2'-e][1,4]thiazines are readily accessible by twofold Pd-catalyzed amination. According to cyclic voltammetry dithienothiazines are reversibly oxidized and can be considered as new donors for functional π-systems.
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Affiliation(s)
- Catherine Dostert
- Lehrstuhl für Organische Chemie, Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225, Düsseldorf, Germany
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18
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Müller T, Muschelknautz C, Dostert C. Dual Electrophilic Trapping-Negishi Coupling with Dilithiothiophenes in a Three-Component, One-Pot Process. Synlett 2010. [DOI: 10.1055/s-0029-1219203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Dostert C, Guarda G, Romero JF, Menu P, Gross O, Tardivel A, Suva ML, Stehle JC, Kopf M, Stamenkovic I, Corradin G, Tschopp J. Malarial hemozoin is a Nalp3 inflammasome activating danger signal. PLoS One 2009; 4:e6510. [PMID: 19652710 PMCID: PMC2714977 DOI: 10.1371/journal.pone.0006510] [Citation(s) in RCA: 276] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2009] [Accepted: 07/01/2009] [Indexed: 01/01/2023] Open
Abstract
Background Characteristic symptoms of malaria include recurrent fever attacks and neurodegeneration, signs that are also found in patients with a hyperactive Nalp3 inflammasome. Plasmodium species produce a crystal called hemozoin that is generated by detoxification of heme after hemoglobin degradation in infected red blood cells. Thus, we hypothesized that hemozoin could activate the Nalp3 inflammasome, due to its particulate nature reminiscent of other inflammasome-activating agents. Methodology/Principal Findings We found that hemozoin acts as a proinflammatory danger signal that activates the Nalp3 inflammasome, causing the release of IL-1β. Similar to other Nalp3-activating particles, hemozoin activity is blocked by inhibiting phagocytosis, K+ efflux and NADPH oxidase. In vivo, intraperitoneal injection of hemozoin results in acute peritonitis, which is impaired in Nalp3-, caspase-1- and IL-1R-deficient mice. Likewise, the pathogenesis of cerebral malaria is dampened in Nalp3-deficient mice infected with Plasmodium berghei sporozoites, while parasitemia remains unchanged. Significance/Conclusions The potent pro-inflammatory effect of hemozoin through inflammasome activation may possibly be implicated in plasmodium-associated pathologies such as cerebral malaria.
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Affiliation(s)
- Catherine Dostert
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Greta Guarda
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | | | - Philippe Menu
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Olaf Gross
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Aubry Tardivel
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Mario-Luca Suva
- Division of Experimental Pathology, Institute of Pathology, CHUV, Lausanne, Switzerland
| | | | - Manfred Kopf
- Institut Integrative Biologie, ETH, Zürich, Switzerland
| | - Ivan Stamenkovic
- Division of Experimental Pathology, Institute of Pathology, CHUV, Lausanne, Switzerland
| | | | - Jurg Tschopp
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
- * E-mail:
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20
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Guarda G, Dostert C, Staehli F, Cabalzar K, Castillo R, Tardivel A, Schneider P, Tschopp J. T cells dampen innate immune responses through inhibition of NLRP1 and NLRP3 inflammasomes. Nature 2009; 460:269-73. [PMID: 19494813 DOI: 10.1038/nature08100] [Citation(s) in RCA: 201] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2009] [Accepted: 04/16/2009] [Indexed: 12/20/2022]
Abstract
Inflammation is a protective attempt by the host to remove injurious stimuli and initiate the tissue healing process. The inflammatory response must be actively terminated, however, because failure to do so can result in 'bystander' damage to tissues and diseases such as arthritis or type-2 diabetes. Yet the mechanisms controlling excessive inflammatory responses are still poorly understood. Here we show that mouse effector and memory CD4(+) T cells abolish macrophage inflammasome-mediated caspase-1 activation and subsequent interleukin 1beta release in a cognate manner. Inflammasome inhibition is observed for all tested NLRP1 (commonly called NALP1) and NLRP3 (NALP3 or cryopyrin) activators, whereas NLRC4 (IPAF) inflammasome function and release of other inflammatory mediators such as CXCL2, interleukin 6 and tumour necrosis factor are not affected. Suppression of the NLRP3 inflammasome requires cell-to-cell contact and can be mimicked by macrophage stimulation with selected ligands of the tumour necrosis factor family, such as CD40L (also known as CD40LG). In a NLRP3-dependent peritonitis model, effector CD4(+) T cells are responsible for decreasing neutrophil recruitment in an antigen-dependent manner. Our findings reveal an unexpected mechanism of inflammasome inhibition, whereby effector and memory T cells suppress potentially damaging inflammation, yet leave the primary inflammatory response, crucial for the onset of immunity, intact.
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Affiliation(s)
- Greta Guarda
- Department of Biochemistry, University of Lausanne, Chemin des Boveresses 155, CH-1066 Epalinges, Switzerland
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21
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Gross O, Poeck H, Bscheider M, Dostert C, Hannesschläger N, Endres S, Hartmann G, Tardivel A, Schweighoffer E, Tybulewicz V, Mocsai A, Tschopp J, Ruland J. Syk kinase signalling couples to the Nlrp3 inflammasome for anti-fungal host defence. Nature 2009; 459:433-6. [PMID: 19339971 DOI: 10.1038/nature07965] [Citation(s) in RCA: 684] [Impact Index Per Article: 45.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Accepted: 03/12/2009] [Indexed: 12/30/2022]
Abstract
Fungal infections represent a serious threat, particularly in immunocompromised patients. Interleukin-1beta (IL-1beta) is a key pro-inflammatory factor in innate antifungal immunity. The mechanism by which the mammalian immune system regulates IL-1beta production after fungal recognition is unclear. Two signals are generally required for IL-1beta production: an NF-kappaB-dependent signal that induces the synthesis of pro-IL-1beta (p35), and a second signal that triggers proteolytic pro-IL-1beta processing to produce bioactive IL-1beta (p17) via Caspase-1-containing multiprotein complexes called inflammasomes. Here we demonstrate that the tyrosine kinase Syk, operating downstream of several immunoreceptor tyrosine-based activation motif (ITAM)-coupled fungal pattern recognition receptors, controls both pro-IL-1beta synthesis and inflammasome activation after cell stimulation with Candida albicans. Whereas Syk signalling for pro-IL-1beta synthesis selectively uses the Card9 pathway, inflammasome activation by the fungus involves reactive oxygen species production and potassium efflux. Genetic deletion or pharmalogical inhibition of Syk selectively abrogated inflammasome activation by C. albicans but not by inflammasome activators such as Salmonella typhimurium or the bacterial toxin nigericin. Nlrp3 (also known as NALP3) was identified as the critical NOD-like receptor family member that transduces the fungal recognition signal to the inflammasome adaptor Asc (Pycard) for Caspase-1 (Casp1) activation and pro-IL-1beta processing. Consistent with an essential role for Nlrp3 inflammasomes in antifungal immunity, we show that Nlrp3-deficient mice are hypersusceptible to Candida albicans infection. Thus, our results demonstrate the molecular basis for IL-1beta production after fungal infection and identify a crucial function for the Nlrp3 inflammasome in mammalian host defence in vivo.
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Affiliation(s)
- Olaf Gross
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675 Munich, Germany
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22
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Deddouche S, Matt N, Budd A, Mueller S, Kemp C, Galiana-Arnoux D, Dostert C, Antoniewski C, Hoffmann JA, Imler JL. The DExD/H-box helicase Dicer-2 mediates the induction of antiviral activity in drosophila. Nat Immunol 2008; 9:1425-32. [PMID: 18953338 DOI: 10.1038/ni.1664] [Citation(s) in RCA: 264] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2008] [Accepted: 09/09/2008] [Indexed: 11/08/2022]
Abstract
Drosophila, like other invertebrates and plants, relies mainly on RNA interference for its defense against viruses. In flies, viral infection also triggers the expression of many genes. One of the genes induced, Vago, encodes a 18-kilodalton cysteine-rich polypeptide. Here we provide genetic evidence that the Vago gene product controlled viral load in the fat body after infection with drosophila C virus. Induction of Vago was dependent on the helicase Dicer-2. Dicer-2 belongs to the same DExD/H-box helicase family as do the RIG-I-like receptors, which sense viral infection and mediate interferon induction in mammals. We propose that this family represents an evolutionary conserved set of sensors that detect viral nucleic acids and direct antiviral responses.
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Affiliation(s)
- Safia Deddouche
- Unité Propre de Recherché 9022, Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire et Cellulaire, 67084 Strasbourg, France
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23
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Dostert C, Pétrilli V, Van Bruggen R, Steele C, Mossman BT, Tschopp J. Innate immune activation through Nalp3 inflammasome sensing of asbestos and silica. Science 2008; 320:674-7. [PMID: 18403674 DOI: 10.1126/science.1156995] [Citation(s) in RCA: 1985] [Impact Index Per Article: 124.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The inhalation of airborne pollutants, such as asbestos or silica, is linked to inflammation of the lung, fibrosis, and lung cancer. How the presence of pathogenic dust is recognized and how chronic inflammatory diseases are triggered are poorly understood. Here, we show that asbestos and silica are sensed by the Nalp3 inflammasome, whose subsequent activation leads to interleukin-1beta secretion. Inflammasome activation is triggered by reactive oxygen species, which are generated by a NADPH oxidase upon particle phagocytosis. (NADPH is the reduced form of nicotinamide adenine dinucleotide phosphate.) In a model of asbestos inhalation, Nalp3-/- mice showed diminished recruitment of inflammatory cells to the lungs, paralleled by lower cytokine production. Our findings implicate the Nalp3 inflammasome in particulate matter-related pulmonary diseases and support its role as a major proinflammatory "danger" receptor.
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Affiliation(s)
- Catherine Dostert
- Department of Biochemistry, University of Lausanne, Chemin des Boveresses 155, 1066 Epalinges, Switzerland
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25
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Pétrilli V, Dostert C, Muruve DA, Tschopp J. The inflammasome: a danger sensing complex triggering innate immunity. Curr Opin Immunol 2007; 19:615-22. [PMID: 17977705 DOI: 10.1016/j.coi.2007.09.002] [Citation(s) in RCA: 530] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2007] [Revised: 09/07/2007] [Accepted: 09/14/2007] [Indexed: 02/07/2023]
Abstract
The NOD-like receptors (NLR) are a family of intracellular sensors of microbial motifs and 'danger signals' that have emerged as being crucial components of the innate immune responses and inflammation. Several NLRs (NALPs and IPAF) form a caspase-1-activating multiprotein complex, termed inflammasome, that processes proinflammatory cytokines including IL-1beta. Amongst the various inflammasomes, the NALP3 inflammasome is particularly qualified to sense a plethora of diverse molecules, ranging from bacterial muramyldipeptide to monosodium urate crystals. The important role of the NALP3 inflammasome is emphasized by the identification of mutations in the NALP3 gene that are associated with a susceptibility to inflammatory disorders. These and other issues related to the inflammasome are discussed in this review.
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Affiliation(s)
- Virginie Pétrilli
- Department of Biochemistry, University of Lausanne, Ch des Boveresses 155, CH-1066, Epalinges, Switzerland
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26
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Pétrilli V, Papin S, Dostert C, Mayor A, Martinon F, Tschopp J. Activation of the NALP3 inflammasome is triggered by low intracellular potassium concentration. Cell Death Differ 2007; 14:1583-9. [PMID: 17599094 DOI: 10.1038/sj.cdd.4402195] [Citation(s) in RCA: 1082] [Impact Index Per Article: 63.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Inflammasomes are Nod-like receptor(NLR)- and caspase-1-containing cytoplasmic multiprotein complexes, which upon their assembly, process and activate the proinflammatory cytokines interleukin (IL)-1beta and IL-18. The inflammasomes harboring the NLR members NALP1, NALP3 and IPAF have been best characterized. While the IPAF inflammasome is activated by bacterial flagellin, activation of the NALP3 inflammasome is triggered not only by several microbial components, but also by a plethora of danger-associated host molecules such as uric acid. How NALP3 senses these chemically unrelated activators is not known. Here, we provide evidence that activation of NALP3, but not of the IPAF inflammasome, is blocked by inhibiting K(+) efflux from cells. Low intracellular K(+) is also a requirement for NALP1 inflammasome activation by lethal toxin of Bacillus anthracis. In vitro, NALP inflammasome assembly and caspase-1 recruitment occurs spontaneously at K(+) concentrations below 90 mM, but is prevented at higher concentrations. Thus, low intracellular K(+) may be the least common trigger of NALP-inflammasome activation.
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Affiliation(s)
- V Pétrilli
- Department of Biochemistry, University of Lausanne, Chemin des Boveresses 155, Center of Immunology Lausanne, Epalinges 1066, Switzerland
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Galiana-Arnoux D, Dostert C, Schneemann A, Hoffmann JA, Imler JL. Essential function in vivo for Dicer-2 in host defense against RNA viruses in drosophila. Nat Immunol 2006; 7:590-7. [PMID: 16554838 DOI: 10.1038/ni1335] [Citation(s) in RCA: 406] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2006] [Accepted: 03/20/2006] [Indexed: 12/11/2022]
Abstract
The fruit fly Drosophila melanogaster is a model system for studying innate immunity, including antiviral host defense. Infection with drosophila C virus triggers a transcriptional response that is dependent in part on the Jak kinase Hopscotch. Here we show that successful infection and killing of drosophila with the insect nodavirus flock house virus was strictly dependent on expression of the viral protein B2, a potent inhibitor of processing of double-stranded RNA mediated by the essential RNA interference factor Dicer. Conversely, flies with a loss-of-function mutation in the gene encoding Dicer-2 (Dcr-2) showed enhanced susceptibility to infection by flock house virus, drosophila C virus and Sindbis virus, members of three different families of RNA viruses. These data demonstrate the importance of RNA interference for controlling virus replication in vivo and establish Dcr-2 as a host susceptibility locus for virus infections.
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Affiliation(s)
- Delphine Galiana-Arnoux
- UPR9022 Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire et Cellulaire Strasbourg 67000, France
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Dostert C, Jouanguy E, Irving P, Troxler L, Galiana-Arnoux D, Hetru C, Hoffmann JA, Imler JL. The Jak-STAT signaling pathway is required but not sufficient for the antiviral response of drosophila. Nat Immunol 2005; 6:946-53. [PMID: 16086017 DOI: 10.1038/ni1237] [Citation(s) in RCA: 489] [Impact Index Per Article: 25.7] [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: 04/20/2005] [Accepted: 06/30/2005] [Indexed: 11/08/2022]
Abstract
The response of drosophila to bacterial and fungal infections involves two signaling pathways, Toll and Imd, which both activate members of the transcription factor NF-kappaB family. Here we have studied the global transcriptional response of flies to infection with drosophila C virus. Viral infection induced a set of genes distinct from those regulated by the Toll or Imd pathways and triggered a signal transducer and activator of transcription (STAT) DNA-binding activity. Genetic experiments showed that the Jak kinase Hopscotch was involved in the control of the viral load in infected flies and was required but not sufficient for the induction of some virus-regulated genes. Our results indicate that in addition to Toll and Imd, a third, evolutionary conserved innate immunity pathway functions in drosophila and counters viral infection.
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Affiliation(s)
- Catherine Dostert
- Centre National de la Recherche Scientifique UPR9022, Institut de Biologie Moléculaire et Cellulaire, 67000 Strasbourg, France
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30
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Abstract
Drosophila is a powerful model system to study the regulatory and effector mechanisms of innate immunity. To identify molecules induced in the course of viral infection in this insect, we have developed a model based on intrathoracic injection of the picorna-like Drosophila C virus (DCV). We have used MALDI-TOF mass spectrometry to compare the hemolymph of DCV infected flies and control flies. By contrast with the strong humoral response triggered by injection of bacteria or fungal spores, we have identified only one molecule induced in the hemolymph of virus infected flies. This molecule, pherokine-2 (Phk-2), is related to OS-D/A10 (Phk-1), which was previously characterized as a putative odor/pheromone binding protein specifically expressed in antennae. The virus-induced molecule is also similar to the product of the gene CG9358 (Phk-3), which is induced by septic injury. Both Phk-2 and Phk-3 are strongly expressed during metamorphosis, suggesting that they may participate in tissue-remodeling.
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Affiliation(s)
- Laurence Sabatier
- CNRS UPR9022, Institut de Biologie Moléculaire et Cellulaire, Strasbourg, France
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