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Camp B, Jorde I, Sittel F, Pausder A, Jeron A, Bruder D, Schreiber J, Stegemann-Koniszewski S. Comprehensive analysis of lung macrophages and dendritic cells in two murine models of allergic airway inflammation reveals model- and subset-specific accumulation and phenotypic alterations. Front Immunol 2024; 15:1374670. [PMID: 38529288 PMCID: PMC10961404 DOI: 10.3389/fimmu.2024.1374670] [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: 01/22/2024] [Accepted: 02/27/2024] [Indexed: 03/27/2024] Open
Abstract
Introduction Allergic asthma has been mainly attributed to T helper type 2 (Th2) and proinflammatory responses but many cellular processes remain elusive. There is increasing evidence for distinct roles for macrophage and dendritic cell (DC) subsets in allergic airway inflammation (AAI). At the same time, there are various mouse models for allergic asthma that have been of utmost importance in identifying key inflammatory pathways in AAI but that differ in the allergen and/or route of sensitization. It is unclear whether and how the accumulation and activation of specialized macrophage and DC subsets depend on the experimental model chosen for analyses. Methods In our study, we employed high-parameter spectral flow cytometry to comprehensively assess the accumulation and phenotypic alterations of different macrophage- and DC-subsets in the lung in an OVA- and an HDM-mediated mouse model of AAI. Results We observed subset-specific as well as model-specific characteristics with respect to cell numbers and functional marker expression. Generally, alveolar as opposed to interstitial macrophages showed increased MHCII surface expression in AAI. Between the models, we observed significantly increased numbers of alveolar macrophages, CD103+ DC and CD11b+ DC in HDM-mediated AAI, concurrent with significantly increased airway interleukin-4 but decreased total serum IgE levels. Further, increased expression of CD80 and CD86 on DC was exclusively detected in HDM-mediated AAI. Discussion Our study demonstrates a model-specific involvement of macrophage and DC subsets in AAI. It further highlights spectral flow cytometry as a valuable tool for their comprehensive analysis under inflammatory conditions in the lung.
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Affiliation(s)
- Belinda Camp
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Ilka Jorde
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Franka Sittel
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Alexander Pausder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Andreas Jeron
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
- Department of Pediatrics, Ludwig-Maximilians University of Munich, Munich, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Jens Schreiber
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Sabine Stegemann-Koniszewski
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
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Brandt S, Bernhardt A, Häberer S, Wolters K, Gehringer F, Reichardt C, Krause A, Geffers R, Kahlfuß S, Jeron A, Bruder D, Lindquist JA, Isermann B, Mertens PR. Comparative Analysis of Acute Kidney Injury Models and Related Fibrogenic Responses: Convergence on Methylation Patterns Regulated by Cold Shock Protein. Cells 2024; 13:367. [PMID: 38474331 DOI: 10.3390/cells13050367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/02/2024] [Accepted: 02/15/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Fibrosis is characterized by excessive extracellular matrix formation in solid organs, disrupting tissue architecture and function. The Y-box binding protein-1 (YB-1) regulates fibrosis-related genes (e.g., Col1a1, Mmp2, and Tgfβ1) and contributes significantly to disease progression. This study aims to identify fibrogenic signatures and the underlying signaling pathways modulated by YB-1. METHODS Transcriptomic changes associated with matrix gene patterns in human chronic kidney diseases and murine acute injury models were analyzed with a focus on known YB-1 targets. Ybx1-knockout mouse strains (Ybx1ΔRosaERT+TX and Ybx1ΔLysM) were subjected to various kidney injury models. Fibrosis patterns were characterized by histopathological staining, transcriptome analysis, qRT-PCR, methylation analysis, zymography, and Western blotting. RESULTS Integrative transcriptomic analyses revealed that YB-1 is involved in several fibrogenic signatures related to the matrisome, the WNT, YAP/TAZ, and TGFß pathways, and regulates Klotho expression. Changes in the methylation status of the Klotho promoter by specific methyltransferases (DNMT) are linked to YB-1 expression, extending to other fibrogenic genes. Notably, kidney-resident cells play a significant role in YB-1-modulated fibrogenic signaling, whereas infiltrating myeloid immune cells have a minimal impact. CONCLUSIONS YB-1 emerges as a master regulator of fibrogenesis, guiding DNMT1 to fibrosis-related genes. This highlights YB-1 as a potential target for epigenetic therapies interfering in this process.
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Affiliation(s)
- Sabine Brandt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GCI-3), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Anja Bernhardt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GCI-3), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Saskia Häberer
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Katharina Wolters
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Fabian Gehringer
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GCI-3), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Charlotte Reichardt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GCI-3), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Anna Krause
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GCI-3), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Robert Geffers
- Genome Analytics Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Sascha Kahlfuß
- Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GCI-3), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Institute of Molecular and Clinical Immunology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Institute of Medical Microbiology, Infection Control and Prevention, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Andreas Jeron
- Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GCI-3), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Institute of Medical Microbiology, Infection Control and Prevention, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Research Group Immune Regulation, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Dunja Bruder
- Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GCI-3), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Institute of Medical Microbiology, Infection Control and Prevention, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Research Group Immune Regulation, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Jonathan A Lindquist
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GCI-3), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Berend Isermann
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig University, 04103 Leipzig, Germany
| | - Peter R Mertens
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Medical Faculty, Health Campus Immunology, Infectiology and Inflammation (GCI-3), Otto-von-Guericke University, 39120 Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-von-Guericke University, 39120 Magdeburg, Germany
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Dogra T, Pelz L, Boehme JD, Kuechler J, Kershaw O, Marichal-Gallardo P, Baelkner M, Hein MD, Gruber AD, Benndorf D, Genzel Y, Bruder D, Kupke SY, Reichl U. Generation of "OP7 chimera" defective interfering influenza A particle preparations free of infectious virus that show antiviral efficacy in mice. Sci Rep 2023; 13:20936. [PMID: 38017026 PMCID: PMC10684881 DOI: 10.1038/s41598-023-47547-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 11/15/2023] [Indexed: 11/30/2023] Open
Abstract
Influenza A virus (IAV) defective interfering particles (DIPs) are considered as new promising antiviral agents. Conventional DIPs (cDIPs) contain a deletion in the genome and can only replicate upon co-infection with infectious standard virus (STV), during which they suppress STV replication. We previously discovered a new type of IAV DIP "OP7" that entails genomic point mutations and displays higher antiviral efficacy than cDIPs. To avoid safety concerns for the medical use of OP7 preparations, we developed a production system that does not depend on infectious IAV. We reconstituted a mixture of DIPs consisting of cDIPs and OP7 chimera DIPs, in which both harbor a deletion in their genome. To complement the defect, the deleted viral protein is expressed by the suspension cell line used for production in shake flasks. Here, DIP preparations harvested are not contaminated with infectious virions, and the fraction of OP7 chimera DIPs depended on the multiplicity of infection. Intranasal administration of OP7 chimera DIP material was well tolerated in mice. A rescue from an otherwise lethal IAV infection and no signs of disease upon OP7 chimera DIP co-infection demonstrated the remarkable antiviral efficacy. The clinical development of this new class of broad-spectrum antiviral may contribute to pandemic preparedness.
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Affiliation(s)
- Tanya Dogra
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
| | - Lars Pelz
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
| | - Julia D Boehme
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto Von Guericke University Magdeburg, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Jan Kuechler
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
| | - Olivia Kershaw
- Department of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Pavel Marichal-Gallardo
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
| | - Maike Baelkner
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto Von Guericke University Magdeburg, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Marc D Hein
- Bioprocess Engineering, Otto Von Guericke University Magdeburg, Magdeburg, Germany
| | - Achim D Gruber
- Department of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Dirk Benndorf
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
- Bioprocess Engineering, Otto Von Guericke University Magdeburg, Magdeburg, Germany
| | - Yvonne Genzel
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
| | - Dunja Bruder
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto Von Guericke University Magdeburg, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Sascha Y Kupke
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany.
| | - Udo Reichl
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
- Bioprocess Engineering, Otto Von Guericke University Magdeburg, Magdeburg, Germany
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4
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Brauns S, Marquardt I, Thon C, Frentzel S, Jakob J, Färber J, Philipsen L, Jänsch L, Link A, Bruder D. Mucosal-associated invariant T cells from Clostridioides difficile-infected patients exhibit a distinct proinflammatory phenotype and enhanced cytotoxic activity. Int Immunol 2023; 35:543-554. [PMID: 37549964 DOI: 10.1093/intimm/dxad032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 08/07/2023] [Indexed: 08/09/2023] Open
Abstract
Mucosal-associated invariant T (MAIT) cells are innate-like T cells mainly found in the mucosa and peripheral blood. We have recently demonstrated that Clostridioides difficile activates MAIT cells in vitro. However, their role in the pathogenesis of C. difficile infection (CDI) in human patients remains elusive to date. In this study, we performed comprehensive immunophenotyping of MAIT cells derived from CDI patients and compared their phenotype to that of patients with inflammatory bowel diseases (IBD) and healthy controls. Our study revealed that blood MAIT cells from CDI patients exhibit an interleukin 17a (IL-17a)-dominated proinflammatory phenotype and an increased readiness to synthesize the proinflammatory cytokine interferon γ (IFN-γ) following in vitro re-stimulation. Moreover, the cytotoxic activity of MAIT cells, as measured by surface CD107a and intracellular granzyme B expression, was strongly increased in CDI. Multi epitope ligand cartography (MELC) analysis of intestinal biopsies from CDI patients revealed that MAIT cells exhibit an increased production of granzyme B and increased cytotoxicity compared to the control group. Together with previously published in vitro data from our group, our findings suggest that MAIT cells are functionally involved in the immune response against C. difficile and contribute to the pathogenesis of CDI.
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Affiliation(s)
- Steffen Brauns
- Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Isabel Marquardt
- Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Cosima Thon
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Hospital, Magdeburg, Germany
| | - Sarah Frentzel
- Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Josefine Jakob
- Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Jacqueline Färber
- Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Lars Philipsen
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Multi-parametric Bioimaging and Cytometry, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Lothar Jänsch
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Alexander Link
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Hospital, Magdeburg, Germany
| | - Dunja Bruder
- Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
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Vogel K, Arra A, Lingel H, Bretschneider D, Prätsch F, Schanze D, Zenker M, Balk S, Bruder D, Geffers R, Hachenberg T, Arens C, Brunner-Weinzierl MC. Bifidobacteria shape antimicrobial T-helper cell responses during infancy and adulthood. Nat Commun 2023; 14:5943. [PMID: 37741816 PMCID: PMC10517955 DOI: 10.1038/s41467-023-41630-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 09/11/2023] [Indexed: 09/25/2023] Open
Abstract
Microbial infections early in life are challenging for the unexperienced immune system. The SARS-CoV-2 pandemic again has highlighted that neonatal, infant, child, and adult T-helper(Th)-cells respond differently to infections, and requires further understanding. This study investigates anti-bacterial T-cell responses against Staphylococcus aureus aureus, Staphylococcus epidermidis and Bifidobacterium longum infantis in early stages of life and adults and shows age and pathogen-dependent mechanisms. Beside activation-induced clustering, T-cells stimulated with Staphylococci become Th1-type cells; however, this differentiation is mitigated in Bifidobacterium-stimulated T-cells. Strikingly, prestimulation of T-cells with Bifidobacterium suppresses the activation of Staphylococcus-specific T-helper cells in a cell-cell dependent manner by inducing FoxP3+CD4+ T-cells, increasing IL-10 and galectin-1 secretion and showing a CTLA-4-dependent inhibitory capacity. Furthermore Bifidobacterium dampens Th responses of severely ill COVID-19 patients likely contributing to resolution of harmful overreactions of the immune system. Targeted, age-specific interventions may enhance infection defence, and specific immune features may have potential cross-age utilization.
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Affiliation(s)
- Katrin Vogel
- Department of Experimental Paediatrics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - Aditya Arra
- Department of Experimental Paediatrics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - Holger Lingel
- Department of Experimental Paediatrics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | | | - Florian Prätsch
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital, Otto-von-Guericke-University, Magdeburg, Germany
| | - Denny Schanze
- Institute of Human Genetics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - Martin Zenker
- Institute of Human Genetics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - Silke Balk
- Department of Experimental Paediatrics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Robert Geffers
- Genome Analytics, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Thomas Hachenberg
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital, Otto-von-Guericke-University, Magdeburg, Germany
| | - Christoph Arens
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, Otto-von-Guericke University, Magdeburg, Germany
- Justus-Liebig-University Gießen, University Hospital of Gießen and Marburg (UKGM), Gießen Campus, Department of Otorhinolaryngology, Head/Neck Surgery and Plastic Surgery, Gießen, Germany
| | - Monika C Brunner-Weinzierl
- Department of Experimental Paediatrics, University Hospital, Otto-von-Guericke University, Magdeburg, Germany.
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Stegemann-Koniszewski S, Frentzel S, Bruder D. Good and bad outcomes of respiratory viral infections-influenza A virus trains sustained antitumor immunity of macrophages in the lung. Cell Mol Immunol 2023:10.1038/s41423-023-01015-y. [PMID: 37069228 PMCID: PMC10387473 DOI: 10.1038/s41423-023-01015-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 04/19/2023] Open
Affiliation(s)
- Sabine Stegemann-Koniszewski
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg/Medical Faculty, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Sarah Frentzel
- Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dunja Bruder
- Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany.
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Jakob J, Kröger A, Klawonn F, Bruder D, Jänsch L. Translatome analyses by bio-orthogonal non-canonical amino acid labeling reveal that MR1-activated MAIT cells induce an M1 phenotype and antiviral programming in antigen-presenting monocytes. Front Immunol 2023; 14:1091837. [PMID: 36875139 PMCID: PMC9977998 DOI: 10.3389/fimmu.2023.1091837] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/30/2023] [Indexed: 02/18/2023] Open
Abstract
MAIT cells are multifunctional innate-like effector cells recognizing bacterial-derived vitamin B metabolites presented by the non-polymorphic MHC class I related protein 1 (MR1). However, our understanding of MR1-mediated responses of MAIT cells upon their interaction with other immune cells is still incomplete. Here, we performed the first translatome study of primary human MAIT cells interacting with THP-1 monocytes in a bicellular system. We analyzed the interaction between MAIT and THP-1 cells in the presence of the activating 5-OP-RU or the inhibitory Ac-6-FP MR1-ligand. Using bio-orthogonal non-canonical amino acid tagging (BONCAT) we were able to enrich selectively those proteins that were newly translated during MR1-dependent cellular interaction. Subsequently, newly translated proteins were measured cell-type-specifically by ultrasensitive proteomics to decipher the coinciding immune responses in both cell types. This strategy identified over 2,000 MAIT and 3,000 THP-1 active protein translations following MR1 ligand stimulations. Translation in both cell types was found to be increased by 5-OP-RU, which correlated with their conjugation frequency and CD3 polarization at MAIT cell immunological synapses in the presence of 5-OP-RU. In contrast, Ac-6-FP only regulated a few protein translations, including GSK3B, indicating an anergic phenotype. In addition to known effector responses, 5-OP-RU-induced protein translations uncovered type I and type II Interferon-driven protein expression profiles in both MAIT and THP-1 cells. Interestingly, the translatome of THP-1 cells suggested that activated MAIT cells can impact M1/M2 polarization in these cells. Indeed, gene and surface expression of CXCL10, IL-1β, CD80, and CD206 confirmed an M1-like phenotype of macrophages being induced in the presence of 5-OP-RU-activated MAIT cells. Furthermore, we validated that the Interferon-driven translatome was accompanied by the induction of an antiviral phenotype in THP-1 cells, which were found able to suppress viral replication following conjugation with MR1-activated MAIT cells. In conclusion, BONCAT translatomics extended our knowledge of MAIT cell immune responses at the protein level and discovered that MR1-activated MAIT cells are sufficient to induce M1 polarization and an anti-viral program of macrophages.
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Affiliation(s)
- Josefine Jakob
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Andrea Kröger
- Innate Immunity and Infection, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany.,Institute of Medical Microbiology and Hospital Hygiene, Molecular Microbiology, Health Campus Immunology, Infectiology and Inflammation, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Frank Klawonn
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dunja Bruder
- Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Lothar Jänsch
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany
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Frentzel S, Jeron A, Pausder A, Kershaw O, Volckmar J, Schmitz I, Bruder D. IκB NS-deficiency protects mice from fatal Listeria monocytogenes infection by blunting pro-inflammatory signature in Ly6C high monocytes and preventing exaggerated innate immune responses. Front Immunol 2022; 13:1028789. [PMID: 36618344 PMCID: PMC9813228 DOI: 10.3389/fimmu.2022.1028789] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022] Open
Abstract
IκB proteins regulate the inhibition and activation of NF-κB transcription factor complexes. While classical IκB proteins keep NF-κB complexes inactive in the cytoplasm, atypical IκB proteins act on activated NF-κB complexes located in the nucleus. Most of the knowledge regarding the function of IκB proteins has been collected in vitro, while far less is known regarding their impact on activation and regulation of immune responses during in vivo infections. Combining in vivo Listeria monocytogenes (Lm) infection with comparative ex vivo transcriptional profiling of the hepatic response to the pathogen we observed that in contrast to wild type mice that mounted a robust inflammatory response, IκBNS-deficiency was generally associated with a transcriptional repression of innate immune responses. Whole tissue transcriptomics revealed a pronounced IκBNS-dependent reduction of myeloid cell-associated transcripts in the liver together with an exceptionally high Nfkbid promoter activity uncovered in Ly6Chigh inflammatory monocytes prompted us to further characterize the specific contribution of IκBNS in the inflammatory response of monocytes to the infectious agent. Indeed, Ly6Chigh monocytes primed during Lm infection in the absence of IκBNS displayed a blunted response compared to wild type-derived Ly6Chigh monocytes as evidenced by the reduced early expression of hallmark transcripts of monocyte-driven inflammation such as Il6, Nos2 and Il1β. Strikingly, altered monocyte activation in IκBNS-deficient mice was associated with an exceptional resistance against Lm infection and protection was associated with a strong reduction in immunopathology in Lm target organs. Of note, mice lacking IκBNS exclusively in myeloid cells failed to resist Lm infection, indicating that the observed effect was not monocyte intrinsic but monocyte extrinsic. While serum cytokine-profiling did not discover obvious differences between wild type and IκBNS -/- mice for most of the analyzed mediators, IL-10 was virtually undetectable in IκBNS-deficient mice, both in the steady state and following Lm infection. Together, we show here a crucial role for IκBNS during Lm infection with IκBNS-deficient mice showing an overall blunted pro-inflammatory immune response attributed to a reduced pro-inflammatory signature in Ly6Chigh monocytes. Reduced immunopathology and complete protection of mice against an otherwise fatal Lm infection identified IκBNS as molecular driver of inflammation in listeriosis.
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Affiliation(s)
- Sarah Frentzel
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany,Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Andreas Jeron
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany,Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Alexander Pausder
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany,Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Olivia Kershaw
- Department of Veterinary Medicine, Institute of Veterinary Pathology, Free University Berlin, Berlin, Germany
| | - Julia Volckmar
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany,Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Ingo Schmitz
- Dept. of Molecular Immunology, Ruhr University Bochum, Bochum, Germany
| | - Dunja Bruder
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany,Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany,*Correspondence: Dunja Bruder,
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9
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Jhutty SS, Boehme JD, Jeron A, Volckmar J, Schultz K, Schreiber J, Schughart K, Zhou K, Steinheimer J, Stöcker H, Stegemann-Koniszewski S, Bruder D, Hernandez-Vargas EA. Predicting Influenza A Virus Infection in the Lung from Hematological Data with Machine Learning. mSystems 2022; 7:e0045922. [PMID: 36346236 PMCID: PMC9765554 DOI: 10.1128/msystems.00459-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The tracking of pathogen burden and host responses with minimally invasive methods during respiratory infections is central for monitoring disease development and guiding treatment decisions. Utilizing a standardized murine model of respiratory influenza A virus (IAV) infection, we developed and tested different supervised machine learning models to predict viral burden and immune response markers, i.e., cytokines and leukocytes in the lung, from hematological data. We performed independently in vivo infection experiments to acquire extensive data for training and testing of the models. We show here that lung viral load, neutrophil counts, cytokines (such as gamma interferon [IFN-γ] and interleukin 6 [IL-6]), and other lung infection markers can be predicted from hematological data. Furthermore, feature analysis of the models showed that blood granulocytes and platelets play a crucial role in prediction and are highly involved in the immune response against IAV. The proposed in silico tools pave the path toward improved tracking and monitoring of influenza virus infections and possibly other respiratory infections based on minimally invasively obtained hematological parameters. IMPORTANCE During the course of respiratory infections such as influenza, we do have a very limited view of immunological indicators to objectively and quantitatively evaluate the outcome of a host. Methods for monitoring immunological markers in a host's lungs are invasive and expensive, and some of them are not feasible to perform. Using machine learning algorithms, we show for the first time that minimally invasively acquired hematological parameters can be used to infer lung viral burden, leukocytes, and cytokines following influenza virus infection in mice. The potential of the framework proposed here consists of a new qualitative vision of the disease processes in the lung compartment as a noninvasive tool.
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Affiliation(s)
- Suneet Singh Jhutty
- Frankfurt Institute for Advanced Studiesgrid.417999.b, Frankfurt am Main, Germany
- Faculty of Biological Sciences, Goethe University, Frankfurt am Main, Germany
| | - Julia D. Boehme
- Immune Regulation Group, Helmholtz Centre for Infection Researchgrid.7490.a, Braunschweig, Germany
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Andreas Jeron
- Immune Regulation Group, Helmholtz Centre for Infection Researchgrid.7490.a, Braunschweig, Germany
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Julia Volckmar
- Immune Regulation Group, Helmholtz Centre for Infection Researchgrid.7490.a, Braunschweig, Germany
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Kristin Schultz
- Immune Regulation Group, Helmholtz Centre for Infection Researchgrid.7490.a, Braunschweig, Germany
- Department of Infection Genetics, Helmholtz Centre for Infection Researchgrid.7490.a, Braunschweig, Germany
| | - Jens Schreiber
- Department of Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburggrid.5807.a, Magdeburg, Germany
| | - Klaus Schughart
- Department of Infection Genetics, Helmholtz Centre for Infection Researchgrid.7490.a, Braunschweig, Germany
- Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA
- University of Veterinary Medicine Hannover, Hannover, Germany
| | - Kai Zhou
- Frankfurt Institute for Advanced Studiesgrid.417999.b, Frankfurt am Main, Germany
| | - Jan Steinheimer
- Frankfurt Institute for Advanced Studiesgrid.417999.b, Frankfurt am Main, Germany
| | - Horst Stöcker
- Frankfurt Institute for Advanced Studiesgrid.417999.b, Frankfurt am Main, Germany
- Institut für Theoretische Physik, Goethe Universität Frankfurt, Frankfurt am Main, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
| | - Sabine Stegemann-Koniszewski
- Department of Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburggrid.5807.a, Magdeburg, Germany
| | - Dunja Bruder
- Immune Regulation Group, Helmholtz Centre for Infection Researchgrid.7490.a, Braunschweig, Germany
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Esteban A. Hernandez-Vargas
- Frankfurt Institute for Advanced Studiesgrid.417999.b, Frankfurt am Main, Germany
- Department of Mathematics and Statistical Science, University of Idaho, Moscow, Idaho, USA
- Institute for Modeling Collaboration and Innovation, University of Idaho, Moscow, Idaho, USA
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10
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Abdi Sarabi M, Shiri A, Aghapour M, Reichardt C, Brandt S, Mertens PR, Medunjanin S, Bruder D, Braun-Dullaeus RC, Weinert S. Normoxic HIF-1α Stabilization Caused by Local Inflammatory Factors and Its Consequences in Human Coronary Artery Endothelial Cells. Cells 2022; 11:cells11233878. [PMID: 36497143 PMCID: PMC9737288 DOI: 10.3390/cells11233878] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
Knowledge about normoxic hypoxia-inducible factor (HIF)-1α stabilization is limited. We investigated normoxic HIF-1α stabilization and its consequences using live cell imaging, immunoblotting, Bio-Plex multiplex immunoassay, immunofluorescence staining, and barrier integrity assays. We demonstrate for the first time that IL-8 and M-CSF caused HIF-1α stabilization and translocation into the nucleus under normoxic conditions in both human coronary endothelial cells (HCAECs) and HIF-1α-mKate2-expressing HEK-293 cells. In line with the current literature, our data show significant normoxic HIF-1α stabilization caused by TNF-α, INF-γ, IL-1β, and IGF-I in both cell lines, as well. Treatment with a cocktail consisting of TNF-α, INF-γ, and IL-1β caused significantly stronger HIF-1α stabilization in comparison to single treatments. Interestingly, this cumulative effect was not observed during simultaneous treatment with IL-8, M-CSF, and IGF-I. Furthermore, we identified two different kinetics of HIF-1α stabilization under normoxic conditions. Our data demonstrate elevated protein levels of HIF-1α-related genes known to be involved in the development of atherosclerosis. Moreover, we demonstrate an endothelial barrier dysfunction in HCAECs upon our treatments and during normoxic HIF-1α stabilization comparable to that under hypoxia. This study expands the knowledge of normoxic HIF-1α stabilization and activation and its consequences on the endothelial secretome and barrier function. Our data imply an active role of HIF-1α in vivo in the vasculature in the absence of hypoxia.
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Affiliation(s)
- Mohsen Abdi Sarabi
- Department of Internal Medicine, Division of Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Alireza Shiri
- Department of Internal Medicine, Division of Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Mahyar Aghapour
- Department of Internal Medicine, Division of Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Charlotte Reichardt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Sabine Brandt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Peter R. Mertens
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Senad Medunjanin
- Department of Internal Medicine, Division of Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Ruediger C. Braun-Dullaeus
- Department of Internal Medicine, Division of Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Correspondence: (R.C.B.-D.); (S.W.)
| | - Sönke Weinert
- Department of Internal Medicine, Division of Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Correspondence: (R.C.B.-D.); (S.W.)
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11
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Wenzek C, Steinbach P, Wirsdörfer F, Sutter K, Boehme JD, Geffers R, Klopfleisch R, Bruder D, Jendrossek V, Buer J, Westendorf AM, Knuschke T. CD47 restricts antiviral function of alveolar macrophages during influenza virus infection. iScience 2022; 25:105540. [DOI: 10.1016/j.isci.2022.105540] [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] [Received: 05/10/2022] [Revised: 09/15/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022] Open
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12
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Pausder A, Mras P, Hoenicke L, Waldburg N, Lesker TR, Schreiber J, Strowig T, Boehme JD, Bruder D. Altered nasal microbiota in asthmatic patients is not related to changes in secretory immunity in the nasopharynx. Clin Exp Allergy 2022; 52:1213-1218. [PMID: 35819876 DOI: 10.1111/cea.14200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/21/2022] [Accepted: 07/10/2022] [Indexed: 01/26/2023]
Affiliation(s)
- Alexander Pausder
- Research Group Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany.,Research Group Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,ESF Graduate School ABINEP, Magdeburg, Germany
| | - Paula Mras
- Research Group Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany.,Pneumological Practice, Magdeburg, Germany
| | - Lisa Hoenicke
- Department of Microbial Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Department of Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | | | - Till R Lesker
- Department of Microbial Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Jens Schreiber
- Department of Pneumology, University Hospital, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany
| | - Till Strowig
- Department of Microbial Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
| | - Julia D Boehme
- Research Group Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany.,Research Group Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dunja Bruder
- Research Group Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University, Magdeburg, Germany.,Research Group Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
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13
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Gelmez E, Lehr K, Kershaw O, Frentzel S, Vilchez-Vargas R, Bank U, Link A, Schüler T, Jeron A, Bruder D. Characterization of Maladaptive Processes in Acute, Chronic and Remission Phases of Experimental Colitis in C57BL/6 Mice. Biomedicines 2022; 10:biomedicines10081903. [PMID: 36009449 PMCID: PMC9405850 DOI: 10.3390/biomedicines10081903] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 11/20/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic recurrent inflammatory disease with unknown etiology. Dextran sulfate sodium (DSS) induced colitis is a widely used mouse model in IBD research. DSS colitis involves activation of the submucosal immune system and can be used to study IBD-like disease characteristics in acute, chronic, remission and transition phases. Insight into colon inflammatory parameters is needed to understand potentially irreversible adaptations to the chronification of colitis, determining the baseline and impact of further inflammatory episodes. We performed analyses of non-invasive and invasive colitis parameters in acute, chronic and remission phases of the DSS colitis in C57BL/6 mice. Non-invasive colitis parameters poorly reflected inflammatory aspects of colitis in chronic remission phase. We found invasive inflammatory parameters, positively linked to repeated DSS-episodes, such as specific colon weight, inflamed colon area, spleen weight, absolute cell numbers of CD4+ and CD8+ T cells as well as B cells, blood IFN-γ level, colonic chemokines BLC and MDC as well as the prevalence of Turicibacter species in feces. Moreover, microbial Lactobacillus species decreased with chronification of disease. Our data point out indicative parameters of recurrent gut inflammation in context of DSS colitis.
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Affiliation(s)
- Elif Gelmez
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Konrad Lehr
- Department of Gastroenterology, Hepatology and Infectious Diseases, Section of Molecular Gastroenterology and Microbiota-Associated Diseases, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Olivia Kershaw
- Institute of Veterinary Pathology, Freie Universität Berlin, 14163 Berlin, Germany
| | - Sarah Frentzel
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Ramiro Vilchez-Vargas
- Department of Gastroenterology, Hepatology and Infectious Diseases, Section of Molecular Gastroenterology and Microbiota-Associated Diseases, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Ute Bank
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Alexander Link
- Department of Gastroenterology, Hepatology and Infectious Diseases, Section of Molecular Gastroenterology and Microbiota-Associated Diseases, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Thomas Schüler
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Andreas Jeron
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
- Correspondence: ; Tel.: +49-391-67-13374
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14
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Cammann C, Israel N, Frentzel S, Jeron A, Topfstedt E, Schüler T, Simeoni L, Zenker M, Fehling HJ, Schraven B, Bruder D, Seifert U. T cell-specific constitutive active SHP2 enhances T cell memory formation and reduces T cell activation. Front Immunol 2022; 13:958616. [PMID: 35983034 PMCID: PMC9379337 DOI: 10.3389/fimmu.2022.958616] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 05/31/2022] [Accepted: 07/07/2022] [Indexed: 11/13/2022] Open
Abstract
Upon antigen recognition by the T cell receptor (TCR), a complex signaling network orchestrated by protein-tyrosine kinases (PTKs) and protein-tyrosine phosphatases (PTPs) regulates the transmission of the extracellular signal to the nucleus. The role of the PTPs Src-homology 2 (SH2) domain-containing phosphatase 1 (SHP1, Ptpn6) and Src-homology 2 (SH2) domain-containing phosphatase 2 (SHP2, Ptpn11) have been studied in various cell types including T cells. Whereas SHP1 acts as an essential negative regulator of the proximal steps in T cell signalling, the role of SHP2 in T cell activation is still a matter of debate. Here, we analyzed the role of the constitutively active SHP2-D61Y-mutant in T cell activation using knock-in mice expressing the mutant form Ptpn11D61Y in T cells. We observed reduced numbers of CD8+ and increased numbers of CD4+ T cells in the bone marrow and spleen of young and aged SHP2-D61Y-mutant mice as well as in Influenza A Virus (IAV)-infected mice compared to controls. In addition, we found elevated frequencies of effector memory CD8+ T cells and an upregulation of the programmed cell death protein 1 (PD-1)-receptor on both CD4+ and CD8+ T cells. Functional analysis of SHP2-D61Y-mutated T cells revealed an induction of late apoptosis/necrosis, a reduced proliferation and altered signaling upon TCR stimulation. However, the ability of D61Y-mutant mice to clear viral infection was not affected. In conclusion, our data indicate an important regulatory role of SHP2 in T cell function, where the effect is determined by the kinetics of SHP2 phosphatase activity and differs in the presence of the permanently active and the temporally regulated phosphatase. Due to interaction of SHP2 with the PD-1-receptor targeting the protein-tyrosine phosphatase might be a valuable tool to enhance T cell activities in immunotherapy.
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Affiliation(s)
- Clemens Cammann
- Friedrich Loeffler-Institute for Medical Microbiology-Virology, University Medicine Greifswald, Greifswald, Germany
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Nicole Israel
- Friedrich Loeffler-Institute for Medical Microbiology-Virology, University Medicine Greifswald, Greifswald, Germany
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Sarah Frentzel
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Ottovon-Guericke-University Magdeburg, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Andreas Jeron
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Ottovon-Guericke-University Magdeburg, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Eylin Topfstedt
- Friedrich Loeffler-Institute for Medical Microbiology-Virology, University Medicine Greifswald, Greifswald, Germany
| | - Thomas Schüler
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Luca Simeoni
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Martin Zenker
- Institute of Human Genetics, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | | | - Burkhart Schraven
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Dunja Bruder
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Ottovon-Guericke-University Magdeburg, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Ulrike Seifert
- Friedrich Loeffler-Institute for Medical Microbiology-Virology, University Medicine Greifswald, Greifswald, Germany
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
- *Correspondence: Ulrike Seifert,
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15
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Hernandez-Vargas EA, Velasco-Hernández JX, Bruder D. Editorial: Multiscale computational approaches in infectious diseases. Front Microbiol 2022; 13:947673. [PMID: 35966658 PMCID: PMC9372579 DOI: 10.3389/fmicb.2022.947673] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Esteban A. Hernandez-Vargas
- Instituto de Matemáticas, Universidad Nacional Autónoma de México, Querétaro, Mexico
- *Correspondence: Esteban A. Hernandez-Vargas
| | | | - Dunja Bruder
- Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
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16
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Aghapour M, Tulen CBM, Abdi Sarabi M, Weinert S, Müsken M, Relja B, van Schooten FJ, Jeron A, Braun-Dullaeus R, Remels AH, Bruder D. Cigarette Smoke Extract Disturbs Mitochondria-Regulated Airway Epithelial Cell Responses to Pneumococci. Cells 2022; 11:1771. [PMID: 35681466 PMCID: PMC9179351 DOI: 10.3390/cells11111771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/21/2022] [Accepted: 05/24/2022] [Indexed: 01/04/2023] Open
Abstract
Mitochondrial functionality is crucial for the execution of physiologic functions of metabolically active cells in the respiratory tract including airway epithelial cells (AECs). Cigarette smoke is known to impair mitochondrial function in AECs. However, the potential contribution of mitochondrial dysfunction in AECs to airway infection and airway epithelial barrier dysfunction is unknown. In this study, we used an in vitro model based on AECs exposed to cigarette smoke extract (CSE) followed by an infection with Streptococcus pneumoniae (Sp). The levels of oxidative stress as an indicator of mitochondrial stress were quantified upon CSE and Sp treatment. In addition, expression of proteins associated with mitophagy, mitochondrial content, and biogenesis as well as mitochondrial fission and fusion was quantified. Transcriptional AEC profiling was performed to identify the potential changes in innate immune pathways and correlate them with indices of mitochondrial function. We observed that CSE exposure substantially altered mitochondrial function in AECs by suppressing mitochondrial complex protein levels, reducing mitochondrial membrane potential and increasing mitochondrial stress and mitophagy. Moreover, CSE-induced mitochondrial dysfunction correlated with reduced enrichment of genes involved in apical junctions and innate immune responses to Sp, particularly type I interferon responses. Together, our results demonstrated that CSE-induced mitochondrial dysfunction may contribute to impaired innate immune responses to Sp.
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Affiliation(s)
- Mahyar Aghapour
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.); (A.J.)
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Christy B. M. Tulen
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (C.B.M.T.); (F.-J.v.S.); (A.H.R.)
| | - Mohsen Abdi Sarabi
- Department of Internal Medicine/Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.S.); (S.W.)
| | - Sönke Weinert
- Department of Internal Medicine/Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.S.); (S.W.)
| | - Mathias Müsken
- Central Facility for Microscopy, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany;
| | - Borna Relja
- Experimental Radiology, Department of Radiology and Nuclear Medicine, 39120 Magdeburg, Germany;
| | - Frederik-Jan van Schooten
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (C.B.M.T.); (F.-J.v.S.); (A.H.R.)
| | - Andreas Jeron
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.); (A.J.)
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Rüdiger Braun-Dullaeus
- Department of Internal Medicine/Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.S.); (S.W.)
| | - Alexander H. Remels
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (C.B.M.T.); (F.-J.v.S.); (A.H.R.)
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.); (A.J.)
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
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17
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Aghapour M, Ubags ND, Bruder D, Hiemstra PS, Sidhaye V, Rezaee F, Heijink IH. Role of air pollutants in airway epithelial barrier dysfunction in asthma and COPD. Eur Respir Rev 2022; 31:31/163/210112. [PMID: 35321933 PMCID: PMC9128841 DOI: 10.1183/16000617.0112-2021] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [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: 05/10/2021] [Accepted: 11/13/2021] [Indexed: 12/12/2022] Open
Abstract
Chronic exposure to environmental pollutants is a major contributor to the development and progression of obstructive airway diseases, including asthma and COPD. Understanding the mechanisms underlying the development of obstructive lung diseases upon exposure to inhaled pollutants will lead to novel insights into the pathogenesis, prevention and treatment of these diseases. The respiratory epithelial lining forms a robust physicochemical barrier protecting the body from inhaled toxic particles and pathogens. Inhalation of airborne particles and gases may impair airway epithelial barrier function and subsequently lead to exaggerated inflammatory responses and airway remodelling, which are key features of asthma and COPD. In addition, air pollutant-induced airway epithelial barrier dysfunction may increase susceptibility to respiratory infections, thereby increasing the risk of exacerbations and thus triggering further inflammation. In this review, we discuss the molecular and immunological mechanisms involved in physical barrier disruption induced by major airborne pollutants and outline their implications in the pathogenesis of asthma and COPD. We further discuss the link between these pollutants and changes in the lung microbiome as a potential factor for aggravating airway diseases. Understanding these mechanisms may lead to identification of novel targets for therapeutic intervention to restore airway epithelial integrity in asthma and COPD. Exposure to air pollution induces airway epithelial barrier dysfunction through several mechanisms including increased oxidative stress, exaggerated cytokine responses and impaired host defence, which contributes to development of asthma and COPD. https://bit.ly/3DHL1CA
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Affiliation(s)
- Mahyar Aghapour
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Niki D Ubags
- Faculty of Biology and Medicine, University of Lausanne, Service de Pneumologie, CHUV, Epalinges, Switzerland
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Pieter S Hiemstra
- Dept of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Venkataramana Sidhaye
- Pulmonary and Critical Care Medicine, Environmental Health and Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Fariba Rezaee
- Center for Pediatric Pulmonary Medicine, Cleveland Clinic Children's, Cleveland, OH, USA.,Dept of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Irene H Heijink
- University of Groningen, University Medical Center Groningen, Depts of Pathology and Medical Biology and Pulmonology, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
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18
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Marquardt I, Jakob J, Scheibel J, Hofmann JD, Klawonn F, Neumann-Schaal M, Gerhard R, Bruder D, Jänsch L. Clostridioides difficile Toxin CDT Induces Cytotoxic Responses in Human Mucosal-Associated Invariant T (MAIT) Cells. Front Microbiol 2022; 12:752549. [PMID: 34992584 PMCID: PMC8727052 DOI: 10.3389/fmicb.2021.752549] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/24/2021] [Indexed: 12/31/2022] Open
Abstract
Clostridioides difficile is the major cause of antibiotic-associated colitis (CDAC) with increasing prevalence in morbidity and mortality. Severity of CDAC has been attributed to hypervirulent C. difficile strains, which in addition to toxin A and B (TcdA, TcdB) produce the binary toxin C. difficile transferase (CDT). However, the link between these toxins and host immune responses as potential drivers of immunopathology are still incompletely understood. Here, we provide first experimental evidence that C. difficile toxins efficiently activate human mucosal-associated invariant T (MAIT) cells. Among the tested toxins, CDT and more specifically, the substrate binding and pore-forming subunit CDTb provoked significant MAIT cell activation resulting in selective MAIT cell degranulation of the lytic granule components perforin and granzyme B. CDT-induced MAIT cell responses required accessory immune cells, and we suggest monocytes as a potential CDT target cell population. Within the peripheral blood mononuclear cell fraction, we found increased IL-18 levels following CDT stimulation and MAIT cell response was indeed partly dependent on this cytokine. Surprisingly, CDT-induced MAIT cell activation was found to be partially MR1-dependent, although bacterial-derived metabolite antigens were absent. However, the role of antigen presentation in this process was not analyzed here and needs to be validated in future studies. Thus, MR1-dependent induction of MAIT cell cytotoxicity might be instrumental for hypervirulent C. difficile to overcome cellular barriers and may contribute to pathophysiology of CDAC.
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Affiliation(s)
- Isabel Marquardt
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Josefine Jakob
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Jessica Scheibel
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Julia Danielle Hofmann
- Braunschweig Integrated Centre of Systems Biology (BRICS), Department of Bioinformatics and Biochemistry, Technical University Braunschweig, Braunschweig, Germany
| | - Frank Klawonn
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Meina Neumann-Schaal
- Braunschweig Integrated Centre of Systems Biology (BRICS), Department of Bioinformatics and Biochemistry, Technical University Braunschweig, Braunschweig, Germany.,Metabolomics, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Ralf Gerhard
- Institute of Toxicology, Hannover Medical School, Hannover, Germany
| | - Dunja Bruder
- Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Lothar Jänsch
- Cellular Proteomics, Helmholtz Centre for Infection Research, Braunschweig, Germany
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19
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Pausder A, Fricke J, Schughart K, Schreiber J, Strowig T, Bruder D, Boehme JD. Exogenous and Endogenous Triggers Differentially Stimulate Pigr Expression and Antibacterial Secretory Immunity in the Murine Respiratory Tract. Lung 2021; 200:119-128. [PMID: 34825965 PMCID: PMC8881272 DOI: 10.1007/s00408-021-00498-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 07/27/2021] [Accepted: 11/15/2021] [Indexed: 10/25/2022]
Abstract
PURPOSE Transport of secretory immunoglobulin A (SIgA) through the airway epithelial cell barrier into the mucosal lumen by the polymeric immunoglobulin receptor (pIgR) is an important mechanism of respiratory mucosal host defense. Identification of immunomodulating substances that regulate secretory immunity might have therapeutic implications with regard to an improved immune exclusion. Thus, we sought to analyze secretory immunity under homeostatic and immunomodulating conditions in different compartments of the murine upper and lower respiratory tract (URT&LRT). METHODS Pigr gene expression in lung, trachea, and nasal-associated lymphoid tissue (NALT) of germ-free mice, specific pathogen-free mice, mice with an undefined microbiome, as well as LPS- and IFN-γ-treated mice was determined by quantitative real-time PCR. IgA levels in bronchoalveolar lavage (BAL), nasal lavage (NAL), and serum were determined by ELISA. LPS- and IFN-γ-treated mice were colonized with Streptococcus pneumoniae and bacterial CFUs were determined in URT and LRT. RESULTS Respiratory Pigr expression and IgA levels were dependent on the degree of exposure to environmental microbial stimuli. While immunostimulation with LPS and IFN-γ differentially impacts respiratory Pigr expression and IgA in URT vs. LRT, only prophylactic IFN-γ treatment reduces nasal colonization with S. pneumoniae. CONCLUSION Airway-associated secretory immunity can be partly modulated by exposure to microbial ligands and proinflammatory stimuli. Prophylactic IFN-γ-treatment modestly improves antibacterial immunity in the URT, but this does not appear to be mediated by SIgA or pIgR.
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Affiliation(s)
- Alexander Pausder
- Research Group Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-Von-Guericke-University, Leipziger Strasse 44, 39120, Magdeburg, Germany.,Research Group Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,ESF Graduate School ABINEP, Magdeburg, Germany
| | - Jennifer Fricke
- Research Group Infection Genetics, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Current Address: Research Group Nanoinfection Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Klaus Schughart
- Research Group Infection Genetics, Helmholtz Centre for Infection Research, Braunschweig, Germany.,University of Veterinary Medicine, Hannover, Germany.,University of Tennessee Health Science Center, Memphis, TN, USA
| | - Jens Schreiber
- Experimental Pneumology, Health Campus Immunology, Infectiology and Inflammation, University Hospital for Pneumology, Otto-Von-Guericke-University, Magdeburg, Germany
| | - Till Strowig
- Department of Microbial Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dunja Bruder
- Research Group Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-Von-Guericke-University, Leipziger Strasse 44, 39120, Magdeburg, Germany.,Research Group Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Julia D Boehme
- Research Group Infection Immunology, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-Von-Guericke-University, Leipziger Strasse 44, 39120, Magdeburg, Germany. .,Research Group Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.
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20
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Böning MAL, Parzmair GP, Jeron A, Düsedau HP, Kershaw O, Xu B, Relja B, Schlüter D, Dunay IR, Reinhold A, Schraven B, Bruder D. Enhanced Susceptibility of ADAP-Deficient Mice to Listeria monocytogenes Infection Is Associated With an Altered Phagocyte Phenotype and Function. Front Immunol 2021; 12:724855. [PMID: 34659211 PMCID: PMC8515145 DOI: 10.3389/fimmu.2021.724855] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 09/03/2021] [Indexed: 12/04/2022] Open
Abstract
The adhesion and degranulation-promoting adaptor protein (ADAP) serves as a multifunctional scaffold and is involved in the formation of immune signaling complexes. To date, only limited data exist regarding the role of ADAP in pathogen-specific immunity during in vivo infection, and its contribution in phagocyte-mediated antibacterial immunity remains elusive. Here, we show that mice lacking ADAP (ADAPko) are highly susceptible to the infection with the intracellular pathogen Listeria monocytogenes (Lm) by showing enhanced immunopathology in infected tissues together with increased morbidity, mortality, and excessive infiltration of neutrophils and monocytes. Despite high phagocyte numbers in the spleen and liver, ADAPko mice only inefficiently controlled pathogen growth, hinting at a functional impairment of infection-primed phagocytes in the ADAP-deficient host. Flow cytometric analysis of hallmark pro-inflammatory mediators and unbiased whole genome transcriptional profiling of neutrophils and inflammatory monocytes uncovered broad molecular alterations in the inflammatory program in both phagocyte subsets following their activation in the ADAP-deficient host. Strikingly, ex vivo phagocytosis assay revealed impaired phagocytic capacity of neutrophils derived from Lm-infected ADAPko mice. Together, our data suggest that an alternative priming of phagocytes in ADAP-deficient mice during Lm infection induces marked alterations in the inflammatory profile of neutrophils and inflammatory monocytes that contribute to enhanced immunopathology while limiting their capacity to eliminate the pathogen and to prevent the fatal outcome of the infection.
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Affiliation(s)
- Martha A L Böning
- Infection Immunology, Institute of Medical Microbiology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Gerald P Parzmair
- Infection Immunology, Institute of Medical Microbiology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Andreas Jeron
- Infection Immunology, Institute of Medical Microbiology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Henning P Düsedau
- Institute of Inflammation and Neurodegeneration, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Olivia Kershaw
- Department of Veterinary Medicine, Institute of Veterinary Pathology, Freie Universität, Berlin, Germany
| | - Baolin Xu
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Borna Relja
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Dirk Schlüter
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany.,Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Ildiko Rita Dunay
- Institute of Inflammation and Neurodegeneration, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Center for Behavioral Brain Sciences, Otto-von-Guericke University, Magdeburg, Germany
| | - Annegret Reinhold
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Burkhart Schraven
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Dunja Bruder
- Infection Immunology, Institute of Medical Microbiology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
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21
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Ruhnau J, Grote V, Juarez-Osorio M, Bruder D, Mahour R, Rapp E, Rexer TFT, Reichl U. Cell-Free Glycoengineering of the Recombinant SARS-CoV-2 Spike Glycoprotein. Front Bioeng Biotechnol 2021; 9:699025. [PMID: 34485255 PMCID: PMC8415157 DOI: 10.3389/fbioe.2021.699025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 04/22/2021] [Accepted: 07/15/2021] [Indexed: 01/23/2023] Open
Abstract
The baculovirus-insect cell expression system is readily utilized to produce viral glycoproteins for research as well as for subunit vaccines and vaccine candidates, for instance against SARS-CoV-2 infections. However, the glycoforms of recombinant proteins derived from this expression system are inherently different from mammalian cell-derived glycoforms with mainly complex-type N-glycans attached, and the impact of these differences in protein glycosylation on the immunogenicity is severely under investigated. This applies also to the SARS-CoV-2 spike glycoprotein, which is the antigen target of all licensed vaccines and vaccine candidates including virus like particles and subunit vaccines that are variants of the spike protein. Here, we expressed the transmembrane-deleted human β-1,2 N-acetlyglucosamintransferases I and II (MGAT1ΔTM and MGAT2ΔTM) and the β-1,4-galactosyltransferase (GalTΔTM) in E. coli to in-vitro remodel the N-glycans of a recombinant SARS-CoV-2 spike glycoprotein derived from insect cells. In a cell-free sequential one-pot reaction, fucosylated and afucosylated paucimannose-type N-glycans were converted to complex-type galactosylated N-glycans. In the future, this in-vitro glycoengineering approach can be used to efficiently generate a wide range of N-glycans on antigens considered as vaccine candidates for animal trials and preclinical testing to better characterize the impact of N-glycosylation on immunity and to improve the efficacy of protein subunit vaccines.
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Affiliation(s)
- Johannes Ruhnau
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
| | - Valerian Grote
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
| | - Mariana Juarez-Osorio
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
| | - Dunja Bruder
- Infection Immunology, Institute of Medical Microbiology, Infection Prevention and Control, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Reza Mahour
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
| | - Erdmann Rapp
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany.,glyXera GmbH, Magdeburg, Germany
| | - Thomas F T Rexer
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany
| | - Udo Reichl
- Max Planck Institute for Dynamics of Complex Technical Systems, Bioprocess Engineering, Magdeburg, Germany.,Otto-von-Guericke University Magdeburg, Chair of Bioprocess Engineering, Magdeburg, Germany
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22
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Elfaki Y, Yang J, Boehme J, Schultz K, Bruder D, Falk CS, Huehn J, Floess S. Tbx21 and Foxp3 Are Epigenetically Stabilized in T-Bet + Tregs That Transiently Accumulate in Influenza A Virus-Infected Lungs. Int J Mol Sci 2021; 22:ijms22147522. [PMID: 34299148 PMCID: PMC8307036 DOI: 10.3390/ijms22147522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/02/2021] [Accepted: 07/06/2021] [Indexed: 01/19/2023] Open
Abstract
During influenza A virus (IAV) infections, CD4+ T cell responses within infected lungs mainly involve T helper 1 (Th1) and regulatory T cells (Tregs). Th1-mediated responses favor the co-expression of T-box transcription factor 21 (T-bet) in Foxp3+ Tregs, enabling the efficient Treg control of Th1 responses in infected tissues. So far, the exact accumulation kinetics of T cell subsets in the lungs and lung-draining lymph nodes (dLN) of IAV-infected mice is incompletely understood, and the epigenetic signature of Tregs accumulating in infected lungs has not been investigated. Here, we report that the total T cell and the two-step Treg accumulation in IAV-infected lungs is transient, whereas the change in the ratio of CD4+ to CD8+ T cells is more durable. Within lungs, the frequency of Tregs co-expressing T-bet is steadily, yet transiently, increasing with a peak at Day 7 post-infection. Interestingly, T-bet+ Tregs accumulating in IAV-infected lungs displayed a strongly demethylated Tbx21 locus, similarly as in T-bet+ conventional T cells, and a fully demethylated Treg-specific demethylated region (TSDR) within the Foxp3 locus. In summary, our data suggest that T-bet+ but not T-bet- Tregs are epigenetically stabilized during IAV-induced infection in the lung.
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Affiliation(s)
- Yassin Elfaki
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (Y.E.); (J.Y.)
| | - Juhao Yang
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (Y.E.); (J.Y.)
| | - Julia Boehme
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (J.B.); (K.S.); (D.B.)
| | - Kristin Schultz
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (J.B.); (K.S.); (D.B.)
| | - Dunja Bruder
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (J.B.); (K.S.); (D.B.)
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany
| | - Christine S. Falk
- Institute of Transplant Immunology, Hannover Medical School, 30625 Hannover, Germany;
- German Center for Infection Research DZIF, Thematical Translation Unit-Immunocompromized Host (TTU-IICH), Hannover-Braunschweig Site, 30625 Hannover, Germany
| | - Jochen Huehn
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (Y.E.); (J.Y.)
- Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, 30625 Hannover, Germany
- Correspondence: (J.H.); (S.F.)
| | - Stefan Floess
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (Y.E.); (J.Y.)
- Correspondence: (J.H.); (S.F.)
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23
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Rand U, Kupke SY, Shkarlet H, Hein MD, Hirsch T, Marichal-Gallardo P, Cicin-Sain L, Reichl U, Bruder D. Antiviral Activity of Influenza A Virus Defective Interfering Particles against SARS-CoV-2 Replication In Vitro through Stimulation of Innate Immunity. Cells 2021; 10:1756. [PMID: 34359926 PMCID: PMC8303422 DOI: 10.3390/cells10071756] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/08/2021] [Accepted: 07/08/2021] [Indexed: 12/15/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causing coronavirus disease 2019 (COVID-19) emerged in late 2019 and resulted in a devastating pandemic. Although the first approved vaccines were already administered by the end of 2020, worldwide vaccine availability is still limited. Moreover, immune escape variants of the virus are emerging against which the current vaccines may confer only limited protection. Further, existing antivirals and treatment options against COVID-19 show only limited efficacy. Influenza A virus (IAV) defective interfering particles (DIPs) were previously proposed not only for antiviral treatment of the influenza disease but also for pan-specific treatment of interferon (IFN)-sensitive respiratory virus infections. To investigate the applicability of IAV DIPs as an antiviral for the treatment of COVID-19, we conducted in vitro co-infection experiments with cell culture-derived DIPs and the IFN-sensitive SARS-CoV-2 in human lung cells. We show that treatment with IAV DIPs leads to complete abrogation of SARS-CoV-2 replication. Moreover, this inhibitory effect was dependent on janus kinase/signal transducers and activators of transcription (JAK/STAT) signaling. Further, our results suggest boosting of IFN-induced antiviral activity by IAV DIPs as a major contributor in suppressing SARS-CoV-2 replication. Thus, we propose IAV DIPs as an effective antiviral agent for treatment of COVID-19, and potentially also for suppressing the replication of new variants of SARS-CoV-2.
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Affiliation(s)
- Ulfert Rand
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (U.R.); (L.C.-S.)
| | - Sascha Young Kupke
- Bioprocess Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, 39106 Magdeburg, Germany; (P.M.-G.); (U.R.)
| | - Hanna Shkarlet
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (H.S.); (T.H.); (D.B.)
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto von Guericke University Magdeburg, 39120 Magdeburg, Germany
| | - Marc Dominique Hein
- Bioprocess Engineering, Otto von Guericke University Magdeburg, 39106 Magdeburg, Germany;
| | - Tatjana Hirsch
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (H.S.); (T.H.); (D.B.)
| | - Pavel Marichal-Gallardo
- Bioprocess Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, 39106 Magdeburg, Germany; (P.M.-G.); (U.R.)
| | - Luka Cicin-Sain
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (U.R.); (L.C.-S.)
- German Centre for Infection Research, Hannover-Braunschweig Site, 38124 Braunschweig, Germany
- Centre for Individualized Infection Medicine, a Joint Venture of Helmholtz Centre for Infection Research and Medical School Hannover, 38124 Braunschweig, Germany
| | - Udo Reichl
- Bioprocess Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, 39106 Magdeburg, Germany; (P.M.-G.); (U.R.)
- Bioprocess Engineering, Otto von Guericke University Magdeburg, 39106 Magdeburg, Germany;
| | - Dunja Bruder
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (H.S.); (T.H.); (D.B.)
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto von Guericke University Magdeburg, 39120 Magdeburg, Germany
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24
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Hoang QTM, Nguyen VK, Oberacher H, Fuchs D, Hernandez-Vargas EA, Borucki K, Waldburg N, Wippermann J, Schreiber J, Bruder D, Veluswamy P. Serum Concentration of the Phytohormone Abscisic Acid Is Associated With Immune-Regulatory Mediators and Is a Potential Biomarker of Disease Severity in Chronic Obstructive Pulmonary Disease. Front Med (Lausanne) 2021; 8:676058. [PMID: 34169084 PMCID: PMC8217626 DOI: 10.3389/fmed.2021.676058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/26/2021] [Indexed: 12/27/2022] Open
Abstract
COPD and asthma are two distinct but sometimes overlapping diseases exhibiting varying degrees and types of inflammation on different stages of the disease. Although several biomarkers are defined to estimate the inflammatory endotype and stages in these diseases, there is still a need for new markers and potential therapeutic targets. We investigated the levels of a phytohormone, abscisic acid (ABA) and its receptor, LANCL2, in COPD patients and asthmatics. In addition, PPAR-γ that is activated by ABA in a ligand-binding domain-independent manner was also included in the study. In this study, we correlated ABA with COPD-propagating factors to define the possible role of ABA, in terms of immune regulation, inflammation, and disease stages. We collected blood from 101 COPD patients, 52 asthmatics, and 57 controls. Bronchoscopy was performed on five COPD patients and 29 controls. We employed (i) liquid chromatography–tandem mass spectrometry and HPLC to determine the ABA and indoleamine 2,3-dioxygenase levels, respectively; (ii) real-time PCR to quantify the gene expression of LANCL2 and PPAR-γ; (iii) Flow cytometry to quantify adipocytokines; and (iv) immunoturbidimetry and ELISA to measure CRP and cytokines, respectively. Finally, a multinomial regression model was used to predict the probability of using ABA as a biomarker. Blood ABA levels were significantly reduced in COPD patients and asthmatics compared to age- and gender-matched normal controls. However, PPAR-γ was elevated in COPD patients. Intriguingly, ABA was positively correlated with immune-regulatory factors and was negatively correlated with inflammatory markers, in COPD. Of note, ABA was increased in advanced COPD stages. We thereby conclude that ABA might be involved in regulation of COPD pathogenesis and might be regarded as a potential biomarker for COPD stages.
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Affiliation(s)
- Quynh Trang Mi Hoang
- Department of Pneumonology, Otto-von-Guericke-University Magdeburg, University Hospital, Magdeburg, Germany.,Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Hospital, Magdeburg, Germany
| | - Van Kinh Nguyen
- Department of Infectious Diseases Epidemiology, Imperial College, London, United Kingdom
| | - Herbert Oberacher
- Institute of Legal Medicine and Core Facility Metabolomics, Medical University of Innsbruck, Innsbruck, Austria
| | - Dietmar Fuchs
- Institute of Biological Chemistry, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Esteban A Hernandez-Vargas
- Systems Medicine for Infectious Diseases, Frankfurt Institute for Advanced Studies, Frankfurt, Germany.,Instituto de Matematicas, Universidad Nacional Autónoma de México (UNAM), Queretaro, Mexico
| | - Katrin Borucki
- Institute of Clinical Chemistry and Pathobiochemistry, Otto-von-Guericke University, Magdeburg, Germany
| | | | - Jens Wippermann
- Heart Surgery Research, Department of Cardiothoracic Surgery, Otto-von-Guericke University Hospital, Magdeburg, Germany
| | - Jens Schreiber
- Department of Pneumonology, Otto-von-Guericke-University Magdeburg, University Hospital, Magdeburg, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Hospital, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Priya Veluswamy
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Hospital, Magdeburg, Germany.,Heart Surgery Research, Department of Cardiothoracic Surgery, Otto-von-Guericke University Hospital, Magdeburg, Germany
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25
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Elfaki Y, Robert PA, Binz C, Falk CS, Bruder D, Prinz I, Floess S, Meyer-Hermann M, Huehn J. Influenza A virus-induced thymus atrophy differentially affects dynamics of conventional and regulatory T-cell development in mice. Eur J Immunol 2021; 51:1166-1181. [PMID: 33638148 DOI: 10.1002/eji.202048981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 12/23/2020] [Accepted: 02/18/2021] [Indexed: 01/26/2023]
Abstract
Foxp3+ Treg cells, which are crucial for maintenance of self-tolerance, mainly develop within the thymus, where they arise from CD25+ Foxp3- or CD25- Foxp3+ Treg cell precursors. Although it is known that infections can cause transient thymic involution, the impact of infection-induced thymus atrophy on thymic Treg (tTreg) cell development is unknown. Here, we infected mice with influenza A virus (IAV) and studied thymocyte population dynamics post infection. IAV infection caused a massive, but transient thymic involution, dominated by a loss of CD4+ CD8+ double-positive (DP) thymocytes, which was accompanied by a significant increase in the frequency of CD25+ Foxp3+ tTreg cells. Differential apoptosis susceptibility could be experimentally excluded as a reason for the relative tTreg cell increase, and mathematical modeling suggested that enhanced tTreg cell generation cannot explain the increased frequency of tTreg cells. Yet, an increased death of DP thymocytes and augmented exit of single-positive (SP) thymocytes was suggested to be causative. Interestingly, IAV-induced thymus atrophy resulted in a significantly reduced T-cell receptor (TCR) repertoire diversity of newly produced tTreg cells. Taken together, IAV-induced thymus atrophy is substantially altering the dynamics of major thymocyte populations, finally resulting in a relative increase of tTreg cells with an altered TCR repertoire.
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Affiliation(s)
- Yassin Elfaki
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Philippe A Robert
- Department of Systems Immunology and Braunschweig Integrated Centre of Systems Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Christoph Binz
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Christine S Falk
- Institute of Transplant Immunology, Hannover Medical School, Hannover, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Immo Prinz
- Institute of Immunology, Hannover Medical School, Hannover, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
| | - Stefan Floess
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Michael Meyer-Hermann
- Department of Systems Immunology and Braunschweig Integrated Centre of Systems Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany.,Institute for Biochemistry, Biotechnology and Bioinformatics, Technical University Braunschweig, Braunschweig, Germany
| | - Jochen Huehn
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
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26
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Roth S, Cao J, Singh V, Tiedt S, Hundeshagen G, Li T, Boehme JD, Chauhan D, Zhu J, Ricci A, Gorka O, Asare Y, Yang J, Lopez MS, Rehberg M, Bruder D, Zhang S, Groß O, Dichgans M, Hornung V, Liesz A. Post-injury immunosuppression and secondary infections are caused by an AIM2 inflammasome-driven signaling cascade. Immunity 2021; 54:648-659.e8. [PMID: 33667383 DOI: 10.1016/j.immuni.2021.02.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [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: 07/27/2020] [Revised: 12/16/2020] [Accepted: 02/08/2021] [Indexed: 01/01/2023]
Abstract
Loss of lymphocytes, particularly T cell apoptosis, is a central pathological event after severe tissue injury that is associated with increased susceptibility for life-threatening infections. The precise immunological mechanisms leading to T cell death after acute injury are largely unknown. Here, we identified a monocyte-T cell interaction driving bystander cell death of T cells in ischemic stroke and burn injury. Specifically, we found that stroke induced a FasL-expressing monocyte population, which led to extrinsic T cell apoptosis. This phenomenon was driven by AIM2 inflammasome-dependent interleukin-1β (IL-1β) secretion after sensing cell-free DNA. Pharmacological inhibition of this pathway improved T cell survival and reduced post-stroke bacterial infections. As such, this study describes inflammasome-dependent monocyte activation as a previously unstudied cause of T cell death after injury and challenges the current paradigms of post-injury lymphopenia.
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Affiliation(s)
- Stefan Roth
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Jiayu Cao
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Vikramjeet Singh
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Steffen Tiedt
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Gabriel Hundeshagen
- Department of Hand-, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany
| | - Ting Li
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Julia D Boehme
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany; Infection Immunology, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto von-Guericke University, Magdeburg, Germany
| | - Dhruv Chauhan
- Gene Center and Department of Biochemistry, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Jie Zhu
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Alessio Ricci
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Oliver Gorka
- Institute of Neuropathology, Medical Center, University of Freiburg, Freiburg, Germany
| | - Yaw Asare
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Jun Yang
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Mary S Lopez
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Markus Rehberg
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Dunja Bruder
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany; Infection Immunology, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto von-Guericke University, Magdeburg, Germany
| | - Shengxiang Zhang
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Olaf Groß
- Institute of Neuropathology, Medical Center, University of Freiburg, Freiburg, Germany; Signalling Research Centres BIOSS and CIBSS, Freiburg, Germany; Center for Basics in NeuroModulation (NeuroModulBasics), Freiburg, Germany
| | - Martin Dichgans
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Veit Hornung
- Gene Center and Department of Biochemistry, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Arthur Liesz
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.
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27
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Volckmar J, Knop L, Hirsch T, Frentzel S, Erck C, van Ham M, Stegemann-Koniszewski S, Bruder D. Chemical Conjugation of a Purified DEC-205-Directed Antibody with Full-Length Protein for Targeting Mouse Dendritic Cells In Vitro and In Vivo. J Vis Exp 2021. [PMID: 33616089 DOI: 10.3791/62018] [Citation(s) in RCA: 3] [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: 10/31/2022] Open
Abstract
Targeted antigen delivery to cross-presenting dendritic cells (DC) in vivo efficiently induces T effector cell responses and displays a valuable approach in vaccine design. Antigen is delivered to DC via antibodies specific for endocytosis receptors such as DEC-205 that induce uptake, processing, and MHC class I- and II-presentation. Efficient and reliable conjugation of the desired antigen to a suitable antibody is a critical step in DC targeting and among other factors depends on the format of the antigen. Chemical conjugation of full-length protein to purified antibodies is one possible strategy. In the past, we have successfully established cross-linking of the model antigen ovalbumin (OVA) and a DEC-205-specific IgG2a antibody (αDEC-205) for in vivo DC targeting studies in mice. The first step of the protocol is the purification of the antibody from the supernatant of the NLDC (non-lymphoid dendritic cells)-145 hybridoma by affinity chromatography. The purified antibody is activated for chemical conjugation by sulfo-SMCC (sulfosuccinimidyl 4-[N-maleimidomethyl] cyclohexane-1-carboxylate) while at the same time the sulfhydryl-groups of the OVA protein are exposed through incubation with TCEP-HCl (tris (2-carboxyethyl) phosphine hydrochloride). Excess TCEP-HCl and sulfo-SMCC are removed and the antigen is mixed with the activated antibody for overnight coupling. The resulting αDEC-205/OVA conjugate is concentrated and freed from unbound OVA. Successful conjugation of OVA to αDEC-205 is verified by western blot analysis and enzyme-linked immunosorbent assay (ELISA). We have successfully used chemically crosslinked αDEC-205/OVA to induce cytotoxic T cell responses in the liver and to compare different adjuvants for their potential in inducing humoral and cellular immunity following in vivo targeting of DEC-205+ DC. Beyond that, such chemically coupled antibody/antigen conjugates offer valuable tools for the efficient induction of vaccine responses to tumor antigens and have been proven to be superior to classical immunization approaches regarding the prevention and therapy of various types of tumors.
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Affiliation(s)
- Julia Volckmar
- Immune Regulation Group, Helmholtz Centre for Infection Research; Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg;
| | - Laura Knop
- Immune Regulation Group, Helmholtz Centre for Infection Research; Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg; Institute for Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg
| | - Tatjana Hirsch
- Immune Regulation Group, Helmholtz Centre for Infection Research
| | - Sarah Frentzel
- Immune Regulation Group, Helmholtz Centre for Infection Research; Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg
| | - Christian Erck
- Cellular Proteome Research, Helmholtz Centre for Infection Research
| | - Marco van Ham
- Cellular Proteome Research, Helmholtz Centre for Infection Research
| | - Sabine Stegemann-Koniszewski
- Immune Regulation Group, Helmholtz Centre for Infection Research; Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg; Experimental Pneumology, University Hospital of Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg
| | - Dunja Bruder
- Immune Regulation Group, Helmholtz Centre for Infection Research; Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg
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28
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Wu Q, Jorde I, Kershaw O, Jeron A, Bruder D, Schreiber J, Stegemann-Koniszewski S. Resolved Influenza A Virus Infection Has Extended Effects on Lung Homeostasis and Attenuates Allergic Airway Inflammation in a Mouse Model. Microorganisms 2020; 8:microorganisms8121878. [PMID: 33260910 PMCID: PMC7761027 DOI: 10.3390/microorganisms8121878] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/11/2022] Open
Abstract
Allergic airway inflammation (AAI) involves T helper cell type 2 (Th2) and pro-inflammatory responses to aeroallergens and many predisposing factors remain elusive. Influenza A virus (IAV) is a major human pathogen that causes acute respiratory infections and induces specific immune responses essential for viral clearance and resolution of the infection. Beyond acute infection, IAV has been shown to persistently affect lung homeostasis and respiratory immunity. Here we asked how resolved IAV infection affects subsequently induced AAI. Mice infected with a sublethal dose of IAV were sensitized and challenged in an ovalbumin mediated mouse model for AAI after resolution of the acute viral infection. Histological changes, respiratory leukocytes, cytokines and airway hyperreactivity were analyzed in resolved IAV infection alone and in AAI with and without previous IAV infection. More than five weeks after infection, we detected persistent pneumonia with increased activated CD4+ and CD8+ lymphocytes as well as dendritic cells and MHCII expressing macrophages in the lung. Resolved IAV infection significantly affected subsequently induced AAI on different levels including morphological changes, respiratory leukocytes and lymphocytes as well as the pro-inflammatory cytokine responses, which was clearly diminished. We conclude that IAV has exceptional persisting effects on respiratory immunity with substantial consequences for subsequently induced AAI.
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Affiliation(s)
- Qingyu Wu
- Experimental Pneumology, Department of Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany; (Q.W.); (I.J.); (J.S.)
| | - Ilka Jorde
- Experimental Pneumology, Department of Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany; (Q.W.); (I.J.); (J.S.)
| | - Olivia Kershaw
- Institute of Veterinary Pathology, Department of Veterinary Medicine, Freie Universität Berlin, 14163 Berlin, Germany;
| | - Andreas Jeron
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany; (A.J.); (D.B.)
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany; (A.J.); (D.B.)
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Jens Schreiber
- Experimental Pneumology, Department of Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany; (Q.W.); (I.J.); (J.S.)
| | - Sabine Stegemann-Koniszewski
- Experimental Pneumology, Department of Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany; (Q.W.); (I.J.); (J.S.)
- Correspondence:
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29
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Boehme JD, Frentzel S, Bruder D. NMP4: a nuclear driver of innate inflammatory responses during influenza A virus infection. Cell Mol Immunol 2020; 17:1220-1221. [PMID: 32747686 DOI: 10.1038/s41423-020-0517-5] [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] [Received: 07/09/2020] [Accepted: 07/15/2020] [Indexed: 11/09/2022] Open
Affiliation(s)
- Julia D Boehme
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Sarah Frentzel
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany. .,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany.
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30
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Sasaki K, Bruder D, Hernandez-Vargas EA. Topological data analysis to model the shape of immune responses during co-infections. Commun Nonlinear Sci Numer Simul 2020; 85:105228. [PMID: 32288422 PMCID: PMC7129978 DOI: 10.1016/j.cnsns.2020.105228] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/17/2020] [Accepted: 02/11/2020] [Indexed: 05/23/2023]
Abstract
Co-infections by multiple pathogens have important implications in many aspects of health, epidemiology and evolution. However, how to disentangle the non-linear dynamics of the immune response when two infections take place at the same time is largely unexplored. Using data sets of the immune response during influenza-pneumococcal co-infection in mice, we employ here topological data analysis to simplify and visualise high dimensional data sets. We identified persistent shapes of the simplicial complexes of the data in the three infection scenarios: single viral infection, single bacterial infection, and co-infection. The immune response was found to be distinct for each of the infection scenarios and we uncovered that the immune response during the co-infection has three phases and two transition points. During the first phase, its dynamics is inherited from its response to the primary (viral) infection. The immune response has an early shift (few hours post co-infection) and then modulates its response to react against the secondary (bacterial) infection. Between 18 and 26 h post co-infection the nature of the immune response changes again and does no longer resembles either of the single infection scenarios.
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Affiliation(s)
- Karin Sasaki
- Frankfurt Institute for Advanced Studies, Frankfurt am Main 60438, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Campus Immunology, Infectiology and Inflammation Otto-von-Guericke University Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Esteban A Hernandez-Vargas
- Frankfurt Institute for Advanced Studies, Frankfurt am Main 60438, Germany
- Instituto de Matematicas, UNAM, Unidad Juriquilla, Blvd. Juriquilla 3001, Queretaro C.P. 76230, Mexico
- Xidian-FIAS Joint Research Center, Germany-China
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31
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Böning MAL, Trittel S, Riese P, van Ham M, Heyner M, Voss M, Parzmair GP, Klawonn F, Jeron A, Guzman CA, Jänsch L, Schraven B, Reinhold A, Bruder D. ADAP Promotes Degranulation and Migration of NK Cells Primed During in vivo Listeria monocytogenes Infection in Mice. Front Immunol 2020; 10:3144. [PMID: 32038647 PMCID: PMC6987423 DOI: 10.3389/fimmu.2019.03144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 12/27/2019] [Indexed: 12/18/2022] Open
Abstract
The adhesion and degranulation-promoting adaptor protein (ADAP) serves as a multifunctional scaffold and is involved in the formation of immune signaling complexes. To date only limited and moreover conflicting data exist regarding the role of ADAP in NK cells. To extend existing knowledge we investigated ADAP-dependency of NK cells in the context of in vivo infection with the intracellular pathogen Listeria monocytogenes (Lm). Ex vivo analysis of infection-primed NK cells revealed impaired cytotoxic capacity in NK cells lacking ADAP as indicated by reduced CD107a surface expression and inefficient perforin production. However, ADAP-deficiency had no global effect on NK cell morphology or intracellular distribution of CD107a-containing vesicles. Proteomic definition of ADAPko and wild type NK cells did not uncover obvious differences in protein composition during the steady state and moreover, similar early response patterns were induced in NK cells upon infection independent of the genotype. In line with protein network analyses that suggested an altered migration phenotype in naïve ADAPko NK cells, in vitro migration assays uncovered significantly reduced migration of both naïve as well as infection-primed ADAPko NK cells compared to wild type NK cells. Notably, this migration defect was associated with a significantly reduced expression of the integrin CD11a on the surface of splenic ADAP-deficient NK cells 1 day post-Lm infection. We propose that ADAP-dependent alterations in integrin expression might account at least in part for the fact that during in vivo infection significantly lower numbers of ADAPko NK cells accumulate in the spleen i.e., the site of infection. In conclusion, we show here that during systemic Lm infection in mice ADAP is essential for efficient cytotoxic capacity and migration of NK cells.
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Affiliation(s)
- Martha A L Böning
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Stephanie Trittel
- Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Peggy Riese
- Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Marco van Ham
- Cellular Proteome Research, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Maxi Heyner
- Cellular Proteome Research, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Martin Voss
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Gerald P Parzmair
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Frank Klawonn
- Cellular Proteome Research, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Andreas Jeron
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Carlos A Guzman
- Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Lothar Jänsch
- Cellular Proteome Research, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Burkhart Schraven
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Annegret Reinhold
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
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Aghapour M, Remels AHV, Pouwels SD, Bruder D, Hiemstra PS, Cloonan SM, Heijink IH. Mitochondria: at the crossroads of regulating lung epithelial cell function in chronic obstructive pulmonary disease. Am J Physiol Lung Cell Mol Physiol 2020; 318:L149-L164. [PMID: 31693390 PMCID: PMC6985875 DOI: 10.1152/ajplung.00329.2019] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [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: 08/15/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 12/13/2022] Open
Abstract
Disturbances in mitochondrial structure and function in lung epithelial cells have been implicated in the pathogenesis of various lung diseases, including chronic obstructive pulmonary disease (COPD). Such disturbances affect not only cellular energy metabolism but also alter a range of indispensable cellular homeostatic functions in which mitochondria are known to be involved. These range from cellular differentiation, cell death pathways, and cellular remodeling to physical barrier function and innate immunity, all of which are known to be impacted by exposure to cigarette smoke and have been linked to COPD pathogenesis. Next to their well-established role as the first physical frontline against external insults, lung epithelial cells are immunologically active. Malfunctioning epithelial cells with defective mitochondria are unable to maintain homeostasis and respond adequately to further stress or injury, which may ultimately shape the phenotype of lung diseases. In this review, we provide a comprehensive overview of the impact of cigarette smoke on the development of mitochondrial dysfunction in the lung epithelium and highlight the consequences for cell function, innate immune responses, epithelial remodeling, and epithelial barrier function in COPD. We also discuss the applicability and potential therapeutic value of recently proposed strategies for the restoration of mitochondrial function in the treatment of COPD.
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Affiliation(s)
- Mahyar Aghapour
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control, and Prevention, Health Campus Immunology, Infectiology, and Inflammation, Otto-von-Guericke University, Magdeburg, Germany and Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Alexander H V Remels
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Simon D Pouwels
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control, and Prevention, Health Campus Immunology, Infectiology, and Inflammation, Otto-von-Guericke University, Magdeburg, Germany and Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Stanford I, Weill Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Irene H Heijink
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
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33
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Sharma-Chawla N, Stegemann-Koniszewski S, Christen H, Boehme JD, Kershaw O, Schreiber J, Guzmán CA, Bruder D, Hernandez-Vargas EA. In vivo Neutralization of Pro-inflammatory Cytokines During Secondary Streptococcus pneumoniae Infection Post Influenza A Virus Infection. Front Immunol 2019; 10:1864. [PMID: 31474978 PMCID: PMC6702285 DOI: 10.3389/fimmu.2019.01864] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 03/27/2019] [Accepted: 07/23/2019] [Indexed: 11/20/2022] Open
Abstract
An overt pro-inflammatory immune response is a key factor contributing to lethal pneumococcal infection in an influenza pre-infected host and represents a potential target for therapeutic intervention. However, there is a paucity of knowledge about the level of contribution of individual cytokines. Based on the predictions of our previous mathematical modeling approach, the potential benefit of IFN-γ- and/or IL-6-specific antibody-mediated cytokine neutralization was explored in C57BL/6 mice infected with the influenza A/PR/8/34 strain, which were subsequently infected with the Streptococcus pneumoniae strain TIGR4 on day 7 post influenza. While single IL-6 neutralization had no effect on respiratory bacterial clearance, single IFN-γ neutralization enhanced local bacterial clearance in the lungs. Concomitant neutralization of IFN-γ and IL-6 significantly reduced the degree of pneumonia as well as bacteremia compared to the control group, indicating a positive effect for the host during secondary bacterial infection. The results of our model-driven experimental study reveal that the predicted therapeutic value of IFN-γ and IL-6 neutralization in secondary pneumococcal infection following influenza infection is tightly dependent on the experimental protocol while at the same time paving the way toward the development of effective immune therapies.
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Affiliation(s)
- Niharika Sharma-Chawla
- Frankfurt Institute for Advanced Studies, Frankfurt am Main, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany.,Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Sabine Stegemann-Koniszewski
- Immune Regulation Group, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany.,Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Experimental Pneumology, University Hospital of Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Henrike Christen
- Immune Regulation Group, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Julia D Boehme
- Immune Regulation Group, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany.,Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Olivia Kershaw
- Department of Veterinary Medicine, Institute of Veterinary Pathology, Free University Berlin, Berlin, Germany
| | - Jens Schreiber
- Experimental Pneumology, University Hospital of Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Carlos A Guzmán
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany.,Centre for Individualized Infection Medicine (CiiM), Hanover, Germany
| | - Dunja Bruder
- Immune Regulation Group, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany.,Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
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Volckmar J, Knop L, Stegemann-Koniszewski S, Schulze K, Ebensen T, Guzmán CA, Bruder D. The STING activator c-di-AMP exerts superior adjuvant properties than the formulation poly(I:C)/CpG after subcutaneous vaccination with soluble protein antigen or DEC-205-mediated antigen targeting to dendritic cells. Vaccine 2019; 37:4963-4974. [PMID: 31320219 DOI: 10.1016/j.vaccine.2019.07.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/30/2019] [Accepted: 07/06/2019] [Indexed: 12/18/2022]
Abstract
Vaccination is the most efficient strategy to protect from infectious diseases and the induction of a protective immune response not only depends on the nature of the antigen, but is also influenced by the vaccination strategy and the co-administration of adjuvants. Therefore, the precise monitoring of adjuvant candidates and their immune modulatory properties is a crucial step in vaccine development. Here, one central aspect is the induction of appropriate humoral and cellular effector mechanisms. In our study we performed a direct comparison of two promising candidates in adjuvant development, the STING activator bis-(3,5)-cyclic dimeric adenosine monophosphate (c-di-AMP) and the Toll-like receptor ligand formulation poly(I:C)/CpG. These were evaluated in C57BL/6 mice using the model antigen ovalbumin (OVA) in subcutaneous vaccination with soluble protein as well as in a dendritic cell (DC) targeting approach (αDEC-OVA). Strikingly, c-di-AMP as compared to poly(I:C)/CpG resulted in significantly higher antigen-specific IgG antibody levels when used in immunization with soluble OVA as well as in antigen targeting to DC. In vaccination with soluble OVA, c-di-AMP induced a significantly stronger CTL, Th1 and IFNγ-producing CD8+ memory T cell response than poly(I:C)/CpG. The response was CTL and Th1 cell dominated, a profile shared by both adjuvants. In the context of targeting OVA to DC, c-di-AMP induced significantly increased Th1 and Th2 cell responses as compared to poly(I:C)/CpG. Interestingly, the Th1 response dominated the overall T cell response only when c-di-AMP was used, indicating a distinct modulatory property of c-di-AMP when the DC targeting immunization approach was exploited. Taken together, we describe superior properties of c-di-AMP as compared to poly(I:C)/CpG in subcutaneous vaccination with soluble antigen as well as antigen targeting to DC. This indicates exceptionally effective adjuvant properties for c-di-AMP and provides compelling evidence of its potential for further adjuvant development, especially also when using DC targeting approaches.
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Affiliation(s)
- Julia Volckmar
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany; Immune Regulation Group, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Laura Knop
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany; Immune Regulation Group, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Sabine Stegemann-Koniszewski
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany; Immune Regulation Group, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany; Experimental Pneumology, University Hospital for Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany
| | - Kai Schulze
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Thomas Ebensen
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Carlos A Guzmán
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany; Immune Regulation Group, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany.
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35
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Frentzel S, Katsoulis-Dimitriou K, Jeron A, Schmitz I, Bruder D. Essential role of IκB NS for in vivo CD4 + T-cell activation, proliferation, and Th1-cell differentiation during Listeria monocytogenes infection in mice. Eur J Immunol 2019; 49:1391-1398. [PMID: 31049948 PMCID: PMC6771600 DOI: 10.1002/eji.201847961] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 10/08/2018] [Revised: 03/29/2019] [Accepted: 05/02/2019] [Indexed: 12/11/2022]
Abstract
Acquisition of effector functions in T cells is guided by transcription factors, including NF‐κB, that itself is tightly controlled by inhibitory proteins. The atypical NF‐κB inhibitor, IκBNS, is involved in the development of Th1, Th17, and regulatory T (Treg) cells. However, it remained unclear to which extend IκBNS contributed to the acquisition of effector function in T cells specifically responding to a pathogen during in vivo infection. Tracking of adoptively transferred T cells in Listeria monocytogenes infected mice antigen‐specific activation of CD4+ T cells following in vivo pathogen encounter to strongly rely on IκBNS. While IκBNS was largely dispensable for the acquisition of cytotoxic effector function in CD8+ T cells, IκBNS‐deficient Th1 effector cells exhibited significantly reduced proliferation, marked changes in the pattern of activation marker expression, and reduced production of the Th1‐cell cytokines IFN‐γ, IL‐2, and TNF‐α. Complementary in vitro analyses using cells from novel reporter and inducible knockout mice revealed that IκBNS predominantly affects the early phase of Th1‐cell differentiation while its function in terminally differentiated cells appears to be negligible. Our data suggest IκBNS as a potential target to modulate specifically CD4+ T‐cell responses.
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Affiliation(s)
- Sarah Frentzel
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Konstantinos Katsoulis-Dimitriou
- Systems-oriented Immunology and Inflammation Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute for Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Andreas Jeron
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Ingo Schmitz
- Systems-oriented Immunology and Inflammation Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute for Molecular and Clinical Immunology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Dunja Bruder
- Institute of Medical Microbiology, Infection Prevention and Control, Infection Immunology Group, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
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36
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Schultz K, Grieger (Lindner) C, Li Y, Urbánek P, Ruschel A, Minnich K, Bruder D, Gereke M, Sechi A, Herrlich P. Gamma secretase dependent release of the CD44 cytoplasmic tail upregulates IFI16 in cd44-/- tumor cells, MEFs and macrophages. PLoS One 2018; 13:e0207358. [PMID: 30540779 PMCID: PMC6291121 DOI: 10.1371/journal.pone.0207358] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 03/15/2018] [Accepted: 10/30/2018] [Indexed: 01/01/2023] Open
Abstract
The adhesion molecule and co-receptor of receptor tyrosine kinases, CD44, is expressed in all cells of the immune system, but also in numerous non-immune cells. CD44 plays roles in the cellular response to different pathogens. The molecular actions of CD44 during these processes are by and large still unknown. The CD44 molecule undergoes a sequential proteolytic cleavage which leads to the release of a soluble intracellular domain (CD44-ICD). Previous reports had shown that the CD44-ICD is taken up into the nucleus where it enhances transcription of specific target genes. By RNA profiling we identified a CD44-dependent transcriptional increase of interferon-responsive genes, among them IFI16. IFI16 is important in the innate immune response. It senses and binds pathogenic DNA and, together with cGAS, activates the cGAS-cGAMP-STING pathway and induces the expression of genes relevant for the response, e.g. IFN-β. Our results show that the enhancement of IFI16 expression depended on CD44 cleavage. A CD44-negative tumor cell line, embryonic fibroblasts and bone marrow-derived macrophages from cd44-/- mice were reduced in their response to IFN-γ, to viral DNA fragments and to Listeria monocytogenes infection. We could rescue the deficiency of CD44 negative RPM-MC cells and cd44-/- MEFs by expressing only the soluble CD44-ICD in the absence of any other CD44 domain. Expression of the CD44-ICD carrying a mutation that prevented the uptake into the nucleus, could not rescue the absence of CD44. This molecular aspect of regulation by CD44 may explain part of the immune phenotypes of mice with cd44 gene disruption.
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Affiliation(s)
- Kristin Schultz
- Helmholtz Centre for Infection Research, Immune Regulation Group, Braunschweig, Germany
- Otto-von-Guericke-University Magdeburg, Institute of Medical Microbiology, Infection Prevention and Control, Magdeburg, Germany
| | | | - Yong Li
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Pavel Urbánek
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Anne Ruschel
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Kerstin Minnich
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Dunja Bruder
- Helmholtz Centre for Infection Research, Immune Regulation Group, Braunschweig, Germany
- Otto-von-Guericke-University Magdeburg, Institute of Medical Microbiology, Infection Prevention and Control, Magdeburg, Germany
| | - Marcus Gereke
- Helmholtz Centre for Infection Research, Immune Regulation Group, Braunschweig, Germany
- Otto-von-Guericke-University Magdeburg, Institute of Medical Microbiology, Infection Prevention and Control, Magdeburg, Germany
| | - Antonio Sechi
- Institute of Biomedical Engineering, Dept. of Cell Biology, Aachen, Germany
| | - Peter Herrlich
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
- * E-mail:
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37
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Bernal I, Hofmann JD, Bulitta B, Klawonn F, Michel AM, Jahn D, Neumann-Schaal M, Bruder D, Jänsch L. Clostridioides difficile Activates Human Mucosal-Associated Invariant T Cells. Front Microbiol 2018; 9:2532. [PMID: 30410474 PMCID: PMC6209678 DOI: 10.3389/fmicb.2018.02532] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 10/04/2018] [Indexed: 12/13/2022] Open
Abstract
Clostridioides difficile infection (CDI) causes severe inflammatory responses at the intestinal mucosa but the immunological mechanisms underlying CDI-related immunopathology are still incompletely characterized. Here we identified for the first time that both, non-toxigenic strains as well as the hypervirulent ribotypes RT027 and RT023 of Clostridioides difficile (formerly Clostridium difficile), induced an effector phenotype in mucosal-associated invariant T (MAIT) cells. MAIT cells can directly respond to bacterial infections by recognizing MR1-presented metabolites derived from the riboflavin synthesis pathway constituting a novel class of antigens. We confirmed functional riboflavin synthesis of C. difficile and found fixed bacteria capable of activating primary human MAIT cells in a dose-dependent manner. C. difficile-activated MAIT cells showed an increased and MR1-dependent expression of CD69, proinflammatory IFNγ, and the lytic granule components granzyme B and perforin. Effector protein expression was accompanied by the release of lytic granules, which, in contrast to other effector functions, was mainly induced by IL-12 and IL-18. Notably, this study revealed hypervirulent C. difficile strains to be most competent in provoking MAIT cell responses suggesting MAIT cell activation to be instrumental for the immunopathology observed in C. difficile-associated colitis. In conclusion, we provide first evidence for a link between C. difficile metabolism and innate T cell-mediated immunity in humans.
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Affiliation(s)
- Isabel Bernal
- Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology, Otto von Guericke University Magdeburg, Magdeburg, Germany.,Structure and Function of Proteins, Helmholtz Centre for Infection Research, Braunschweig, Germany.,ESF Graduate School ABINEP, Magdeburg, Germany
| | - Julia Danielle Hofmann
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Centre of Systems Biology, Technical University of Braunschweig, Braunschweig, Germany
| | | | - Frank Klawonn
- Structure and Function of Proteins, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Department of Computer Science, Ostfalia University of Applied Sciences, Wolfenbüttel, Germany
| | - Annika-Marisa Michel
- Department of Microbiology, Braunschweig Integrated Centre of Systems Biology, Technical University of Braunschweig, Braunschweig, Germany
| | - Dieter Jahn
- Department of Microbiology, Braunschweig Integrated Centre of Systems Biology, Technical University of Braunschweig, Braunschweig, Germany
| | - Meina Neumann-Schaal
- Department of Bioinformatics and Biochemistry, Braunschweig Integrated Centre of Systems Biology, Technical University of Braunschweig, Braunschweig, Germany.,Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Dunja Bruder
- Institute of Medical Microbiology and Hospital Hygiene, Infection Immunology, Otto von Guericke University Magdeburg, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Lothar Jänsch
- Structure and Function of Proteins, Helmholtz Centre for Infection Research, Braunschweig, Germany
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38
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Abdissa K, Nerlich A, Beineke A, Ruangkiattikul N, Pawar V, Heise U, Janze N, Falk C, Bruder D, Schleicher U, Bogdan C, Weiss S, Goethe R. Presence of Infected Gr-1 intCD11b hiCD11c int Monocytic Myeloid Derived Suppressor Cells Subverts T Cell Response and Is Associated With Impaired Dendritic Cell Function in Mycobacterium avium-Infected Mice. Front Immunol 2018; 9:2317. [PMID: 30386330 PMCID: PMC6198055 DOI: 10.3389/fimmu.2018.02317] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 04/27/2018] [Accepted: 09/18/2018] [Indexed: 12/31/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSC) are immature myeloid cells with immunomodulatory function. To study the mechanism by which MDSC affect antimicrobial immunity, we infected mice with two M. avium strains of differential virulence, highly virulent Mycobacterium avium subsp. avium strain 25291 (MAA) and low virulent Mycobacterium avium subsp. hominissuis strain 104 (MAH). Intraperitoneal infection with MAA, but not MAH, caused severe disease and massive splenic infiltration of monocytic MDSC (M-MDSC; Gr-1intCD11bhiCD11cint) expressing inducible NO synthase (Nos2) and bearing high numbers of mycobacteria. Depletion experiments demonstrated that M-MDSC were essential for disease progression. NO production by M-MDSC influenced antigen-uptake and processing by dendritic cells and proliferation of CD4+ T cells. M-MDSC were also induced in MAA-infected mice lacking Nos2. In these mice CD4+ T cell expansion and control of infection were restored. However, T cell inhibition was only partially relieved and arginase (Arg) 1-expressing M-MDSC were accumulated. Likewise, inhibition of Arg1 also partially rescued T cell proliferation. Thus, mycobacterial virulence results in the induction of M-MDSC that block the T cell response in a Nos2- and Arg1-dependent manner.
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Affiliation(s)
- Ketema Abdissa
- Institute for Microbiology, University of Veterinary Medicine Hannover, Hannover, Germany.,Department of Molecular Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Andreas Nerlich
- Institute for Microbiology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Andreas Beineke
- Institute for Pathology, University of Veterinary Medicine Hannover, Hannover, Germany
| | | | - Vinay Pawar
- Department of Molecular Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Ulrike Heise
- Mouse Pathology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Nina Janze
- Institute for Microbiology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Christine Falk
- Institute of Transplant Immunology, Hannover Medical School, Hannover, Germany
| | - Dunja Bruder
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Ulrike Schleicher
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany.,Medical Immunology Campus Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Christian Bogdan
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany.,Medical Immunology Campus Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Siegfried Weiss
- Department of Molecular Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Ralph Goethe
- Institute for Microbiology, University of Veterinary Medicine Hannover, Hannover, Germany
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Jeron A, Boehme JD, Volckmar J, Gereke M, Yevsa T, Geffers R, Guzmán CA, Schreiber J, Stegemann-Koniszewski S, Bruder D. Respiratory Bordetella bronchiseptica Carriage is Associated with Broad Phenotypic Alterations of Peripheral CD4⁺CD25⁺ T Cells and Differentially Affects Immune Responses to Secondary Non-Infectious and Infectious Stimuli in Mice. Int J Mol Sci 2018; 19:E2602. [PMID: 30200513 PMCID: PMC6165163 DOI: 10.3390/ijms19092602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/03/2018] [Accepted: 08/28/2018] [Indexed: 01/05/2023] Open
Abstract
The respiratory tract is constantly exposed to the environment and displays a favorable niche for colonizing microorganisms. However, the effects of respiratory bacterial carriage on the immune system and its implications for secondary responses remain largely unclear. We have employed respiratory carriage with Bordetella bronchiseptica as the underlying model to comprehensively address effects on subsequent immune responses. Carriage was associated with the stimulation of Bordetella-specific CD4⁺, CD8⁺, and CD4⁺CD25⁺Foxp3⁺ T cell responses, and broad transcriptional activation was observed in CD4⁺CD25⁺ T cells. Importantly, transfer of leukocytes from carriers to acutely B. bronchiseptica infected mice, resulted in a significantly increased bacterial burden in the recipient's upper respiratory tract. In contrast, we found that respiratory B. bronchiseptica carriage resulted in a significant benefit for the host in systemic infection with Listeria monocytogenes. Adaptive responses to vaccination and influenza A virus infection, were unaffected by B. bronchiseptica carriage. These data showed that there were significant immune modulatory processes triggered by B. bronchiseptica carriage, that differentially affect subsequent immune responses. Therefore, our results demonstrated the complexity of immune regulation induced by respiratory bacterial carriage, which can be beneficial or detrimental to the host, depending on the pathogen and the considered compartment.
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Affiliation(s)
- Andreas Jeron
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany.
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
| | - Julia D Boehme
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany.
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
| | - Julia Volckmar
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany.
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
| | - Marcus Gereke
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany.
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
| | - Tetyana Yevsa
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
| | - Robert Geffers
- Genome Analytics Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
| | - Carlos A Guzmán
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
| | - Jens Schreiber
- Experimental Pneumology, University Hospital for Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany.
| | - Sabine Stegemann-Koniszewski
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany.
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
- Experimental Pneumology, University Hospital for Pneumology, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany.
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany.
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
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Bulitta B, Zuschratter W, Bernal I, Bruder D, Klawonn F, von Bergen M, Garritsen HSP, Jänsch L. Proteomic definition of human mucosal-associated invariant T cells determines their unique molecular effector phenotype. Eur J Immunol 2018; 48:1336-1349. [PMID: 29749611 DOI: 10.1002/eji.201747398] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 03/10/2018] [Accepted: 05/08/2018] [Indexed: 12/26/2022]
Abstract
Mucosal-associated invariant T cells (MAIT) constitute the most abundant anti-bacterial CD8+ T-cell population in humans. MR1/TCR-activated MAIT cells were reported to organize cytotoxic and innate-like responses but knowledge about their molecular effector phenotype is still fragmentary. Here, we have examined the functional inventory of human MAIT cells (CD3+ Vα7.2+ CD161+ ) in comparison with those from conventional non-MAIT CD8+ T cells (cCD8+ ) and NK cells. Quantitative mass spectrometry characterized 5500 proteins of primary MAIT cells and identified 160 and 135 proteins that discriminate them from cCD8+ T cells and NK cells donor-independently. Most notably, MAIT cells showed a unique exocytosis machinery in parallel to a proinflammatory granzyme profile with high levels of the granzymes A, K, and M. Furthermore, 24 proteins were identified with highest abundances in MAIT cells, including CD26, CD98, and L-amino-oxidase (LAAO). Among those, expression of granzyme K and CD98 were validated as MAIT-specific with respect to non-MAIT CD8+ effector subsets and LAAO was found to be recruited together with granzymes, perforin, and CD107a at the immunological synapse of activated MAIT cells. In conclusion, this study complements knowledge on the molecular effector phenotype of MAIT cells and suggest novel immune regulatory functions as part of their cytotoxic responses.
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Affiliation(s)
- Björn Bulitta
- Structure and Function of Proteins, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Werner Zuschratter
- Special Lab Electron and Laserscanning Microscopy, Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Isabel Bernal
- Structure and Function of Proteins, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute of Medical Microbiology and Hospital Hygiene, University Hospital Magdeburg, Magdeburg, Germany
| | - Dunja Bruder
- Institute of Medical Microbiology and Hospital Hygiene, University Hospital Magdeburg, Magdeburg, Germany.,Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Frank Klawonn
- Structure and Function of Proteins, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Department of Computer Science, Ostfalia University of Applied Sciences, Wolfenbüttel, Germany
| | - Martin von Bergen
- Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Henrikus Stephanus Paulus Garritsen
- Institute for Clinical Transfusion Medicine, Städtisches Klinikum Braunschweig, Braunschweig, Germany.,Fraunhofer Institute for Surface Engineering and Thin Films, Braunschweig, Germany
| | - Lothar Jänsch
- Structure and Function of Proteins, Helmholtz Centre for Infection Research, Braunschweig, Germany
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41
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Veluswamy P, Bruder D. PD-1/PD-L1 pathway inhibition to restore effector functions in exhausted CD8+ T cells: chances, limitations and potential risks. Transl Cancer Res 2018. [DOI: 10.21037/tcr.2018.04.04] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Stegemann-Koniszewski S, Behrens S, Boehme JD, Hochnadel I, Riese P, Guzmán CA, Kröger A, Schreiber J, Gunzer M, Bruder D. Respiratory Influenza A Virus Infection Triggers Local and Systemic Natural Killer Cell Activation via Toll-Like Receptor 7. Front Immunol 2018; 9:245. [PMID: 29497422 PMCID: PMC5819576 DOI: 10.3389/fimmu.2018.00245] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 01/29/2018] [Indexed: 12/17/2022] Open
Abstract
The innate immune system senses influenza A virus (IAV) through different pathogen-recognition receptors including Toll-like receptor 7 (TLR7). Downstream of viral recognition natural killer (NK) cells are activated as part of the anti-IAV immune response. Despite the known decisive role of TLR7 for NK cell activation by therapeutic immunostimulatory RNAs, the contribution of TLR7 to the NK cell response following IAV infection has not been addressed. We have analyzed lung cytokine responses as well as the activation, interferon (IFN)-γ production, and cytotoxicity of lung and splenic NK cells following sublethal respiratory IAV infection in wild-type and TLR7ko mice. Early airway IFN-γ levels as well as the induction of lung NK cell CD69 expression and IFN-γ production in response to IAV infection were significantly attenuated in TLR7-deficient hosts. Strikingly, respiratory IAV infection also primed splenic NK cells for IFN-γ production, degranulation, and target cell lysis, all of which were fully dependent on TLR7. At the same time, lung type I IFN levels were significantly reduced in TLR7ko mice early following IAV infection, displaying a potential upstream mechanism of the attenuated NK cell activation observed. Taken together, our data clearly demonstrate a specific role for TLR7 signaling in local and systemic NK cell activation following respiratory IAV infection despite the presence of redundant innate IAV-recognition pathways.
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Affiliation(s)
- Sabine Stegemann-Koniszewski
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Infection Immunology, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto von-Guericke University, Magdeburg, Germany.,Experimental Pneumology, University Hospital of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Sarah Behrens
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Julia D Boehme
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Infection Immunology, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto von-Guericke University, Magdeburg, Germany
| | - Inga Hochnadel
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Peggy Riese
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Carlos A Guzmán
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Andrea Kröger
- Molecular Microbiology, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Innate Immunity and Infection, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Jens Schreiber
- Experimental Pneumology, University Hospital of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Matthias Gunzer
- Institute for Experimental Immunology and Imaging, University Hospital, University of Duisburg-Essen, Essen, Germany
| | - Dunja Bruder
- Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Infection Immunology, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto von-Guericke University, Magdeburg, Germany
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Boehme JD, Bruder D. IL-33: a jack of all trades in the orchestration of respiratory antibacterial immunity. Cell Mol Immunol 2017; 14:cmi201753. [PMID: 28690328 PMCID: PMC5675956 DOI: 10.1038/cmi.2017.53] [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] [Received: 05/30/2017] [Accepted: 05/31/2017] [Indexed: 11/09/2022] Open
Affiliation(s)
- Julia D Boehme
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University, Magdeburg, Germany
- Immune Regulation Group, Department of Immune Control, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology and Hospital Hygiene, Otto-von-Guericke University, Magdeburg, Germany
- Immune Regulation Group, Department of Immune Control, Helmholtz Centre for Infection Research, Braunschweig, Germany
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Schuster M, Plaza-Sirvent C, Matthies AM, Heise U, Jeron A, Bruder D, Visekruna A, Huehn J, Schmitz I. c-REL and IκB NS Govern Common and Independent Steps of Regulatory T Cell Development from Novel CD122-Expressing Pre-Precursors. J Immunol 2017; 199:920-930. [PMID: 28652399 DOI: 10.4049/jimmunol.1600877] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 05/31/2017] [Indexed: 01/13/2023]
Abstract
Foxp3-expressing regulatory T cells (Tregs) are essential regulators of immune homeostasis and, thus, are prime targets for therapeutic interventions of diseases such as cancer and autoimmunity. c-REL and IκBNS are important regulators of Foxp3 induction in Treg precursors upon γ-chain cytokine stimulation. In c-REL/IκBNS double-deficient mice, Treg numbers were dramatically reduced, indicating that together, c-REL and IκBNS are pivotal for Treg development. However, despite the highly reduced Treg compartment, double-deficient mice did not develop autoimmunity even when aged to more than 1 y, suggesting that c-REL and IκBNS are required for T cell effector function as well. Analyzing Treg development in more detail, we identified a CD122+ subset within the CD25-Foxp3- precursor population, which gave rise to classical CD25+Foxp3- Treg precursors. Importantly, c-REL, but not IκBNS, controlled the generation of classical CD25+Foxp3- precursors via direct binding to the Cd25 locus. Thus, we propose that CD4+GITR+CD122+CD25-Foxp3- cells represent a Treg pre-precursor population, whose transition into Treg precursors is mediated via c-REL.
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Affiliation(s)
- Marc Schuster
- Systems-Oriented Immunology and Inflammation Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.,Institute of Molecular and Clinical Immunology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Carlos Plaza-Sirvent
- Systems-Oriented Immunology and Inflammation Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.,Institute of Molecular and Clinical Immunology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Anne-Marie Matthies
- Systems-Oriented Immunology and Inflammation Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.,Institute of Molecular and Clinical Immunology, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Ulrike Heise
- Mouse Pathology Platform, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Andreas Jeron
- Institute of Medical Microbiology, Otto-von-Guericke University, 39120 Magdeburg, Germany.,Immune Regulation Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Dunja Bruder
- Institute of Medical Microbiology, Otto-von-Guericke University, 39120 Magdeburg, Germany.,Immune Regulation Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Alexander Visekruna
- Institute of Medical Microbiology and Hospital Hygiene, Phillips-University Marburg, 35043 Marburg, Germany; and
| | - Jochen Huehn
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Ingo Schmitz
- Systems-Oriented Immunology and Inflammation Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; .,Institute of Molecular and Clinical Immunology, Otto-von-Guericke University, 39120 Magdeburg, Germany
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Volckmar J, Gereke M, Ebensen T, Riese P, Philipsen L, Lienenklaus S, Wohlleber D, Klopfleisch R, Stegemann-Koniszewski S, Müller AJ, Gruber AD, Knolle P, Guzman CA, Bruder D. Targeted antigen delivery to dendritic cells elicits robust antiviral T cell-mediated immunity in the liver. Sci Rep 2017; 7:43985. [PMID: 28266658 PMCID: PMC5339819 DOI: 10.1038/srep43985] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 02/02/2017] [Indexed: 01/13/2023] Open
Abstract
Hepatotropic viruses such as hepatitis C virus cause life-threatening chronic liver infections in millions of people worldwide. Targeted in vivo antigen-delivery to cross-presenting dendritic cells (DCs) has proven to be extraordinarily efficient in stimulating antigen-specific T cell responses. To determine whether this approach would as well be suitable to induce local antiviral effector T cells in the liver we compared different vaccine formulations based on either the targeting of DEC-205 or TLR2/6 on cross-presenting DCs or formulations not involving in vivo DC targeting. As read-outs we used in vivo hepatotropic adenovirus challenge, histology and automated multidimensional fluorescence microscopy (MELC). We show that targeted in vivo antigen delivery to cross-presenting DCs is highly effective in inducing antiviral CTLs capable of eliminating virus-infected hepatocytes, while control vaccine formulation not involving DC targeting failed to induce immunity against hepatotropic virus. Moreover, we observed distinct patterns of CD8+ T cell interaction with virus-infected and apoptotic hepatocytes in the two DC-targeting groups suggesting that the different vaccine formulations may stimulate distinct types of effector functions. Our findings represent an important step toward the future development of vaccines against hepatotropic viruses and the treatment of patients with hepatic virus infection after liver transplantation to avoid reinfection.
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Affiliation(s)
- Julia Volckmar
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany &Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Medical Faculty of the Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Marcus Gereke
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany &Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Medical Faculty of the Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Thomas Ebensen
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Peggy Riese
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Lars Philipsen
- Intravital Microscopy in Infection and Immunity, Institute for Molecular and Clinical Immunology, Medical Faculty of the Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Stefan Lienenklaus
- Department of Molecular Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dirk Wohlleber
- Institute of Molecular Immunology, Technische Universität München, Germany
| | - Robert Klopfleisch
- Department of Veterinary Medicine, Institute of Veterinary Pathology, Free University Berlin, Berlin, Germany
| | - Sabine Stegemann-Koniszewski
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany &Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Medical Faculty of the Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Andreas J Müller
- Intravital Microscopy in Infection and Immunity, Institute for Molecular and Clinical Immunology, Medical Faculty of the Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Achim D Gruber
- Department of Veterinary Medicine, Institute of Veterinary Pathology, Free University Berlin, Berlin, Germany
| | - Percy Knolle
- Institute of Molecular Immunology, Technische Universität München, Germany.,Institute of Molecular Medicine and Experimental Immunology, Universität Bonn, Germany
| | - Carlos A Guzman
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dunja Bruder
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany &Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Medical Faculty of the Otto-von-Guericke University Magdeburg, Magdeburg, Germany
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Sakthivel P, Sharma N, Klahn P, Gereke M, Bruder D. Abscisic Acid: A Phytohormone and Mammalian Cytokine as Novel Pharmacon with Potential for Future Development into Clinical Applications. Curr Med Chem 2017; 23:1549-70. [PMID: 27048335 DOI: 10.2174/0929867323666160405113129] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/31/2016] [Accepted: 04/04/2016] [Indexed: 11/22/2022]
Abstract
The isoprenoid stress-associated phytohormone abscisic acid (ABA) has recently been recognized to possess multifaceted biological functions in mammals and to exert potent curative effects in a number of clinically relevant human diseases. Studies with human specimens have unequivocally shown that ABA retains its stress-related functional attributes, previously identified in plants, which contribute to enhanced inflammatory defense mechanisms in mammals. Besides, studies performed in animal models revealed prominent anti-inflammatory properties of ABA as indicated by a marked reduction of immune cell infiltrates at the sites of inflammation. Thus, ABA treatment ultimately leads to the profound improvement of both non-communicable and communicable diseases which are associated with an overall alleviated course of inflammation. In addition to its action on the mammalian immune system, ABA was also shown to exert diverse physiological functions on non-immune components. One of the most remarkable features of ABA is to stimulate and expand mesenchymal stem cells, which may open a new avenue for its potential use in the field of regenerative medicine. Furthermore, ABA has been reported to play an important role in the maintenance of glycemic control. In this review, we summarize current understanding of the significance of ABA in the mammalian system, its prophylactic and therapeutic effects in various disease settings and the future directions for the development of ABA as novel drug candidate for the improved treatment of inflammatory and infectious human diseases.
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Affiliation(s)
- Priya Sakthivel
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Otto-von-Guericke University Magdeburg, Leipziger strasse 44, 39120 Magdeburg, Germany.
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Mracsko E, Stegemann-Koniszewski S, Na SY, Dalpke A, Bruder D, Lasitschka F, Veltkamp R. A Mouse Model of Post-Stroke Pneumonia Induced by Intra-Tracheal Inoculation with Streptococcus pneumoniae. Cerebrovasc Dis 2017; 43:99-109. [DOI: 10.1159/000452136] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 09/22/2016] [Indexed: 02/04/2023] Open
Abstract
Background: Stroke-induced immunodeficiency increases the risk of infectious complications, which adversely affects neurological outcome. Among those, pneumonia affects as many as one third of stroke patients and is the main contributor to mortality in the post-acute phase of stroke. Experimental findings on post-stroke susceptibility to spontaneous pneumonia in mice are contradictory. Here, we established a mouse model inducing standardized bacterial pneumonia and characterized the impaired pulmonary cellular and humoral immune responses after experimental stroke. Methods: Bacterial pneumonia was induced by intra-tracheal inoculation with Streptococcus pneumoniae at different time points after transient middle cerebral artery occlusion (MCAO). Bacterial counts in lungs and blood, histological changes, and cytokine production in the lungs were assessed. Furthermore, we investigated the effect of pneumonia on stroke outcome. Results: Intra-tracheal inoculation resulted in reproducible pneumonia and bacteraemia, and demonstrated post-stroke susceptibility to streptococcal pneumonia developing with a delay of at least 24 h after MCAO. Higher bacterial counts in mice infected 3 days after stroke induction correlated with reduced neutrophil and macrophage infiltration in the lungs and lower levels of pro-inflammatory cytokines in the broncho-alveolar lavage compared to sham-operated animals. Pneumonia increased mortality without affecting brain-infiltrating leukocytes. Conclusions: In this standardized mouse model of post-stroke pneumonia, we describe attenuated leukocyte infiltration and cytokine production in response to bacterial infection in the lungs that has a profound effect on outcome.
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Duvigneau S, Sharma-Chawla N, Boianelli A, Stegemann-Koniszewski S, Nguyen VK, Bruder D, Hernandez-Vargas EA. Hierarchical effects of pro-inflammatory cytokines on the post-influenza susceptibility to pneumococcal coinfection. Sci Rep 2016; 6:37045. [PMID: 27872472 PMCID: PMC5181841 DOI: 10.1038/srep37045] [Citation(s) in RCA: 31] [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: 08/26/2016] [Accepted: 10/20/2016] [Indexed: 02/07/2023] Open
Abstract
In the course of influenza A virus (IAV) infections, a secondary bacterial infection frequently leads to serious respiratory conditions provoking high hospitalization and death tolls. Although abundant pro-inflammatory responses have been reported as key contributing factors for these severe dual infections, the relative contributions of cytokines remain largely unclear. In the current study, mathematical modelling based on murine experimental data dissects IFN-γ as a cytokine candidate responsible for impaired bacterial clearance, thereby promoting bacterial growth and systemic dissemination during acute IAV infection. We also found a time-dependent detrimental role of IL-6 in curtailing bacterial outgrowth which was not as distinct as for IFN-γ. Our numerical simulations suggested a detrimental effect of IFN-γ alone and in synergism with IL-6 but no conclusive pathogenic effect of IL-6 and TNF-α alone. This work provides a rationale to understand the potential impact of how to manipulate temporal immune components, facilitating the formulation of hypotheses about potential therapeutic strategies to treat coinfections.
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Affiliation(s)
- Stefanie Duvigneau
- Infection Immunology Group, Institute of Medical Microbiology, Disease Prevention and Control, Otto-von-Guericke University Magdeburg, Germany.,Systems Medicine of Infectious Disease Group, Department of Systems Immunology and Braunschweig Integrated Centre of Systems Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Chair for Automation/Modeling, Institute for Automation Engineering, Otto-von-Guericke University Magdeburg, Germany
| | - Niharika Sharma-Chawla
- Infection Immunology Group, Institute of Medical Microbiology, Disease Prevention and Control, Otto-von-Guericke University Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Alessandro Boianelli
- Systems Medicine of Infectious Disease Group, Department of Systems Immunology and Braunschweig Integrated Centre of Systems Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Sabine Stegemann-Koniszewski
- Infection Immunology Group, Institute of Medical Microbiology, Disease Prevention and Control, Otto-von-Guericke University Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Van Kinh Nguyen
- Systems Medicine of Infectious Disease Group, Department of Systems Immunology and Braunschweig Integrated Centre of Systems Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Disease Prevention and Control, Otto-von-Guericke University Magdeburg, Germany.,Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Esteban A Hernandez-Vargas
- Systems Medicine of Infectious Disease Group, Department of Systems Immunology and Braunschweig Integrated Centre of Systems Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
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Sakthivel P, Breithaupt A, Gereke M, Copland DA, Schulz C, Gruber AD, Dick AD, Schreiber J, Bruder D. Soluble CD200 Correlates With Interleukin-6 Levels in Sera of COPD Patients: Potential Implication of the CD200/CD200R Axis in the Disease Course. Lung 2016; 195:59-68. [PMID: 27864635 DOI: 10.1007/s00408-016-9962-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 06/05/2016] [Accepted: 11/09/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND COPD represents a multifactorial lung disorder with high morbidity and mortality. Despite intensive research concerning the underlying disease mechanisms, the involvement of the CD200/CD200R axis in supporting or preventing the onset of COPD has not yet been addressed. Since the CD200/CD200R axis is crucially implicated in the maintenance of pulmonary immune homeostasis, we hypothesized that it might be involved in controlling the onset of COPD. METHODS To address this, we analyzed the serum samples from COPD patients and normal controls for soluble (s) CD200 and correlated the data to COPD-relevant clinical parameters. In addition, basic studies were conducted in CD200-deficient and wild-type mice in which COPD-like inflammation was induced with elastase/LPS followed by lung and serum component analysis. RESULTS We observed a positive correlation between serum sCD200 and IL-6 levels as well as a trend toward a negative correlation of sCD200 with vitamin D3 in COPD patients. Further investigations in mice revealed that despite elevated serum concentration of MMP-9 in CD200KO mice, the early onset of COPD-like lung inflammation was similar in CD200-deficient and wild-type animals in terms of immune cell infiltration, emphysematous changes, and mucus overproduction. CONCLUSIONS While our murine studies suggest that the co-inhibitory molecule CD200 does not appear to play a prominent role in the early onset of COPD-like features, correlation of sCD200 serum levels with COPD-related parameters in humans with established disease revealed that the CD200/CD200R axis may be mechanistically linked to the disease course in COPD patients.
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MESH Headings
- Aged
- Animals
- Antigens, CD/blood
- Antigens, CD/genetics
- Antigens, Surface/metabolism
- Case-Control Studies
- Cholecalciferol/blood
- Disease Models, Animal
- Female
- Humans
- Interleukin-6/blood
- Lipopolysaccharides
- Lymphocytes/pathology
- Macrophages, Alveolar/pathology
- Male
- Matrix Metalloproteinase 9/blood
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Middle Aged
- Neutrophils/pathology
- Orexin Receptors
- Pancreatic Elastase
- Pulmonary Disease, Chronic Obstructive/blood
- Pulmonary Disease, Chronic Obstructive/chemically induced
- Pulmonary Disease, Chronic Obstructive/pathology
- Receptors, Cell Surface/metabolism
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Affiliation(s)
- Priya Sakthivel
- Immune Regulation Group, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124, Braunschweig, Germany.
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
| | - Angele Breithaupt
- Department of Veterinary Medicine, Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Marcus Gereke
- Immune Regulation Group, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124, Braunschweig, Germany
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - David A Copland
- School of Clinical Sciences, University of Bristol, Bristol, BS8 1TD, UK
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
- National Institute for Health Research Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, EC1V 2PD, UK
| | - Christian Schulz
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke-University Magdeburg, University Hospital, Magdeburg, Germany
| | - Achim D Gruber
- Department of Veterinary Medicine, Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Andrew D Dick
- School of Clinical Sciences, University of Bristol, Bristol, BS8 1TD, UK
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
- National Institute for Health Research Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, EC1V 2PD, UK
| | - Jens Schreiber
- Department of Pulmonology, Otto-von-Guericke-University Magdeburg, University Hospital, Magdeburg, Germany
| | - Dunja Bruder
- Immune Regulation Group, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124, Braunschweig, Germany
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
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50
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Parzmair GP, Gereke M, Haberkorn O, Annemann M, Podlasly L, Kliche S, Reinhold A, Schraven B, Bruder D. ADAP plays a pivotal role in CD4+ T cell activation but is only marginally involved in CD8+ T cell activation, differentiation, and immunity to pathogens. J Leukoc Biol 2016; 101:407-419. [PMID: 27605210 DOI: 10.1189/jlb.1a0216-090rr] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 02/24/2016] [Revised: 08/17/2016] [Accepted: 08/18/2016] [Indexed: 11/24/2022] Open
Abstract
The adhesion and degranulation promoting adaptor protein (ADAP) is a multifunctional scaffold involved in many different signaling pathways that are important for the function of T cells, including the inside-out and outside-in signaling of integrins, the activation of NF-κB, and the subsequent production of proinflammatory cytokines (e.g., IFN-γ and IL-2). Strikingly, despite its well-established role in T cells, previous studies did not distinguish between CD4+ and CD8+ T cells, and thus, it is unknown whether ADAP fulfills equally important functions in both T cell subsets. We show here that despite comparable ADAP expression levels in CD4+ and CD8+ T cells, their function is differentially dependent on ADAP. Whereas in vitro TCR-stimulation experiments revealed that activation, proliferation, and adhesion are severely compromised in CD4+ T cells lacking ADAP, their CD8+ counterparts are hardly affected by ADAP deficiency. Accordingly, antigen-specific in vivo stimulation of adoptively transferred CD8+ T cells during Listeria monocytogenes (Lm) and influenza A virus (IAV) infection revealed only moderate effects of ADAP deficiency in terms of CD8+ T cell activation, proliferation, and differentiation, which, however, did not impair pathogen-specific immunity. Thus, we show for the first time that ADAP fulfills different functions in CD4+ and CD8+ T cells, with CD8+ T cells being less dependent on ADAP. Our data identify ADAP as a potential molecular target for T cell subset-specific therapeutic interventions.
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Affiliation(s)
- Gerald P Parzmair
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Institute for Molecular and Clinical Immunology, Otto von Guericke University, Magdeburg, Germany
| | - Marcus Gereke
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany.,Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Campus Immunology, Infectiology and Inflammation, Otto von Guericke University, Magdeburg, Germany
| | - Oxana Haberkorn
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Michaela Annemann
- Institute for Molecular and Clinical Immunology, Otto von Guericke University, Magdeburg, Germany
| | - Lisa Podlasly
- Institute for Molecular and Clinical Immunology, Otto von Guericke University, Magdeburg, Germany
| | - Stefanie Kliche
- Institute for Molecular and Clinical Immunology, Otto von Guericke University, Magdeburg, Germany
| | - Annegret Reinhold
- Institute for Molecular and Clinical Immunology, Otto von Guericke University, Magdeburg, Germany
| | - Burkhart Schraven
- Institute for Molecular and Clinical Immunology, Otto von Guericke University, Magdeburg, Germany; .,Department of Immune Control, Helmholtz Centre for Infection Research, Braunschweig, Germany; and
| | - Dunja Bruder
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany; .,Infection Immunology Group, Institute of Medical Microbiology, Infection Prevention and Control, Health Campus Immunology, Infectiology and Inflammation, Otto von Guericke University, Magdeburg, Germany
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