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Rungelrath V, Ahmed M, Hicks L, Miller SM, Ryter KT, Montgomery K, Ettenger G, Riffey A, Abdelwahab WM, Khader SA, Evans JT. Vaccination with Mincle agonist UM-1098 and mycobacterial antigens induces protective Th1 and Th17 responses. NPJ Vaccines 2024; 9:100. [PMID: 38844494 PMCID: PMC11156909 DOI: 10.1038/s41541-024-00897-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/28/2024] [Indexed: 06/09/2024] Open
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb), is one of the top infectious killers in the world. The only licensed vaccine against TB, Bacille Calmette-Guérin (BCG), provides variable protection against pulmonary TB, especially in adults. Hence, novel TB vaccine approaches are urgently needed. Both Th1 and Th17 responses are necessary for protection against TB, yet effective adjuvants and vaccine delivery systems for inducing robust Th1 and Th17 immunity are lacking. Herein we describe a synthetic Mincle agonist, UM-1098, and a silica nanoparticle delivery system that drives Th1/Th17 responses to Mtb antigens. Stimulation of human peripheral blood mononuclear cells (hPBMCs) with UM-1098 induced high levels of Th17 polarizing cytokines IL-6, IL-1β, IL-23 as well as IL-12p70, IL-4 and TNF-α in vitro. PBMCs from both C57BL/6 and BALB/c mice responded with a similar cytokine pattern in vitro and in vivo. Importantly, intramuscular (I.M.) vaccination with UM-1098-adjuvanted TB antigen M72 resulted in significantly higher antigen-specific IFN-γ and IL-17A levels in C57BL/6 wt mice than Mincle KO mice. Vaccination of C57BL/6 wt mice with immunodominant Mtb antigens ESAT6/Ag85B or M72 resulted in predominantly Th1 and Th17 responses and induced antigen-specific serum antibodies. Notably, in a virulent Mtb challenge model, vaccination with UM-1098 adjuvanted ESAT6/Ag85B or M72 significantly reduced lung bacterial burden when compared with unvaccinated mice and protection occurred in the absence of pulmonary inflammation. These data demonstrate that the synthetic Mincle agonist UM-1098 induces strong Th1 and Th17 immunity after vaccination with Mtb antigens and provides protection against Mtb infection in mice.
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Affiliation(s)
- Viktoria Rungelrath
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Mushtaq Ahmed
- Department of Microbiology, University of Chicago, 920 E. 58th St., Chicago, IL, 60637, USA
| | - Linda Hicks
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Shannon M Miller
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Kendal T Ryter
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Kyle Montgomery
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT, 59812, USA
| | - George Ettenger
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Alexander Riffey
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Walid M Abdelwahab
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT, 59812, USA
| | - Shabaana Abdul Khader
- Department of Microbiology, University of Chicago, 920 E. 58th St., Chicago, IL, 60637, USA
| | - Jay T Evans
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT, 59812, USA.
- Department of Biomedical & Pharmaceutical Sciences, University of Montana, Missoula, MT, 59812, USA.
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2
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Wang C, Zhang Y, Shen A, Tang T, Li N, Xu C, Liu B, Lv L. Mincle receptor in macrophage and neutrophil contributes to the unresolved inflammation during the transition from acute kidney injury to chronic kidney disease. Front Immunol 2024; 15:1385696. [PMID: 38770013 PMCID: PMC11103384 DOI: 10.3389/fimmu.2024.1385696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 04/10/2024] [Indexed: 05/22/2024] Open
Abstract
Background Recent studies have demonstrated a strong association between acute kidney injury (AKI) and chronic kidney disease (CKD), while the unresolved inflammation is believed to be a driving force for this chronic transition process. As a transmembrane pattern recognition receptor, Mincle (macrophage-inducible C-type lectin, Clec4e) was identified to participate in the early immune response after AKI. However, the impact of Mincle on the chronic transition of AKI remains largely unclear. Methods We performed single-cell RNA sequencing (scRNA-seq) with the unilateral ischemia-reperfusion (UIR) murine model of AKI at days 1, 3, 14 and 28 after injury. Potential effects and mechanism of Mincle on renal inflammation and fibrosis were further validated in vivo utilizing Mincle knockout mice. Results The dynamic expression of Mincle in macrophages and neutrophils throughout the transition from AKI to CKD was observed. For both cell types, Mincle expression was significantly up-regulated on day 1 following AKI, with a second rise observed on day 14. Notably, we identified distinct subclusters of Minclehigh neutrophils and Minclehigh macrophages that exhibited time-dependent influx with dual peaks characterized with remarkable pro-inflammatory and pro-fibrotic functions. Moreover, we identified that Minclehigh neutrophils represented an "aged" mature neutrophil subset derived from the "fresh" mature neutrophil cluster in kidney. Additionally, we observed a synergistic mechanism whereby Mincle-expressing macrophages and neutrophils sustained renal inflammation by tumor necrosis factor (TNF) production. Mincle-deficient mice exhibited reduced renal injury and fibrosis following AKI. Conclusion The present findings have unveiled combined persistence of Minclehigh neutrophils and macrophages during AKI-to-CKD transition, contributing to unresolved inflammation followed by fibrosis via TNF-α as a central pro-inflammatory cytokine. Targeting Mincle may offer a novel therapeutic strategy for preventing the transition from AKI to CKD.
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Affiliation(s)
| | | | | | | | | | | | | | - Linli Lv
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
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3
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Sollberger G, Brenes AJ, Warner J, Arthur JSC, Howden AJM. Quantitative proteomics reveals tissue-specific, infection-induced and species-specific neutrophil protein signatures. Sci Rep 2024; 14:5966. [PMID: 38472281 PMCID: PMC10933280 DOI: 10.1038/s41598-024-56163-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 03/02/2024] [Indexed: 03/14/2024] Open
Abstract
Neutrophils are one of the first responders to infection and are a key component of the innate immune system through their ability to phagocytose and kill invading pathogens, secrete antimicrobial molecules and produce extracellular traps. Neutrophils are produced in the bone marrow, circulate within the blood and upon immune challenge migrate to the site of infection. We wanted to understand whether this transition shapes the mouse neutrophil protein landscape, how the mouse neutrophil proteome is impacted by systemic infection and perform a comparative analysis of human and mouse neutrophils. Using quantitative mass spectrometry we reveal tissue-specific, infection-induced and species-specific neutrophil protein signatures. We show a high degree of proteomic conservation between mouse bone marrow, blood and peritoneal neutrophils, but also identify key differences in the molecules that these cells express for sensing and responding to their environment. Systemic infection triggers a change in the bone marrow neutrophil population with considerable impact on the core machinery for protein synthesis and DNA replication along with environmental sensors. We also reveal profound differences in mouse and human blood neutrophils, particularly their granule contents. Our proteomics data provides a valuable resource for understanding neutrophil function and phenotypes across species and model systems.
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Affiliation(s)
- Gabriel Sollberger
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, UK.
| | - Alejandro J Brenes
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, UK
- Division of Molecular, Cell and Developmental Biology, School of Life Sciences, University of Dundee, Dundee, UK
| | - Jordan Warner
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, UK
| | - J Simon C Arthur
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, UK
| | - Andrew J M Howden
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, UK.
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4
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Zhang Y, Xu J, Miranda-Katz M, Sojati J, Tollefson SJ, Manni ML, Alcorn JF, Sarkar SN, Williams JV. Distinct roles for type I and type III interferons in virulent human metapneumovirus pathogenesis. PLoS Pathog 2024; 20:e1011840. [PMID: 38315735 PMCID: PMC10868789 DOI: 10.1371/journal.ppat.1011840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 02/15/2024] [Accepted: 11/17/2023] [Indexed: 02/07/2024] Open
Abstract
Human metapneumovirus (HMPV) is an important cause of acute lower respiratory infection in children and adults worldwide. There are four genetic subgroups of HMPV and both neutralizing antibodies and T cells contribute to protection. However, little is known about mechanisms of pathogenesis and most published work is based on a few extensively passaged, laboratory-adapted strains of HMPV. In this study, we isolated and characterized a panel of low passage HMPV clinical isolates representing all four genetic subgroups. The clinical isolates exhibited lower levels of in vitro replication compared to a lab-adapted strain. We compared disease phenotypes using a well-established mouse model. Several virulent isolates caused severe weight loss, lung pathology, airway dysfunction, and fatal disease in mice, which was confirmed in three inbred mouse strains. Disease severity did not correlate with lung viral titer, as virulent strains exhibited restricted replication in the lower airway. Virulent HMPV isolates were associated with markedly increased proinflammatory cytokine production and neutrophil influx; however, depletion of neutrophils or genetic ablation of inflammasome components did not reverse disease. Virulent clinical isolates induced markedly increased type I and type III interferon (IFN) secretion in vitro and in vivo. STAT1/2-deficient mice lacking both type I and type III IFN signaling showed reduced disease severity and increased lung viral replication. Inhibition of type I IFN signaling using a blocking antibody or genetic ablation of the type I IFN receptor reduced pathology with minimal effect on viral replication. Conversely, blockade of type III IFN signaling with a neutralizing antibody or genetic ablation of the IFN-lambda receptor had no effect on pathogenesis but restored viral replication. Collectively, these results demonstrate distinct roles for type I and type III IFN in HMPV pathogenesis and immunity.
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Affiliation(s)
- Yu Zhang
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Jiuyang Xu
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
- Tsinghua University School of Medicine, Beijing, China
| | - Margot Miranda-Katz
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Jorna Sojati
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Sharon J. Tollefson
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Michelle L. Manni
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - John F. Alcorn
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
| | - Saumendra N. Sarkar
- Department of Microbiology & Molecular Genetics, University of Pittsburgh School of Medicine, Pennsylvania, United States of America
| | - John V. Williams
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
- Department of Microbiology & Molecular Genetics, University of Pittsburgh School of Medicine, Pennsylvania, United States of America
- Institute for Infection, Inflammation, and Immunity in Children, University of Pittsburgh, Pennsylvania, United States of America
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5
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Vašíček T, Arensmeyer B, Monti A, Zamyatina A. Versatile approach towards fully desymmetrized trehalose with a novel set of orthogonal protecting groups. Front Chem 2024; 11:1332837. [PMID: 38274896 PMCID: PMC10808579 DOI: 10.3389/fchem.2023.1332837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
Trehalose-containing glycans play an essential role in bacterial pathogenesis, host-pathogen interaction, and cell signaling. The investigation of trehalose uptake and metabolism in Mycobacteria using synthetic desymmetrized trehalose probes is an important approach for the development of diagnostic tools and potential therapeutics for tuberculosis. Trehalose-derived mycobacterial glycolipids activate the innate immune response through recognition by the C-type lectin Mincle, justifying efforts to develop novel trehalose-based Mincle-dependent adjuvants. The chemical synthesis of trehalose-based glycoconjugates, glycolipids, and small-molecule trehalose probes requires the challenging chemical desymmetrization of eight hydroxyl groups in a C 2-symmetric disaccharide αGlc(1↔1)αGlc. Using a novel set of orthogonal protecting groups, we developed a flexible multiscale synthetic approach to a collection of differently and variably protected fully desymmetrized trehalose derivatives, ready for final chemical modification with relevant functional or reporter groups. Using a regioselective and site-specific protecting group strategy, we performed multiple symmetry-breaking operations, resulting in a library of trehalose-derived orthogonally protected building blocks as a versatile source for the synthesis of complex trehalose-containing glycans.
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Affiliation(s)
| | | | | | - Alla Zamyatina
- Department of Chemistry, Institute of Organic Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria
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Wang H, Liu D, Zhou X. Effect of Mycolic Acids on Host Immunity and Lipid Metabolism. Int J Mol Sci 2023; 25:396. [PMID: 38203570 PMCID: PMC10778799 DOI: 10.3390/ijms25010396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 01/12/2024] Open
Abstract
Mycolic acids constitute pivotal constituents within the cell wall structure of Mycobacterium tuberculosis. Due to their structural diversity, the composition of mycolic acids exhibits substantial variations among different strains, endowing them with the distinctive label of being the 'signature' feature of mycobacterial species. Within Mycobacterium tuberculosis, the primary classes of mycolic acids include α-, keto-, and methoxy-mycolic acids. While these mycolic acids are predominantly esterified to the cell wall components (such as arabinogalactan, alginate, or glucose) of Mycobacterium tuberculosis, a fraction of free mycolic acids are secreted during in vitro growth of the bacterium. Remarkably, different types of mycolic acids possess varying capabilities to induce foamy macro-phages and trigger immune responses. Additionally, mycolic acids play a regulatory role in the lipid metabolism of host cells, thereby exerting influence over the progression of tuberculosis. Consequently, the multifaceted properties of mycolic acids shape the immune evasion strategy employed by Mycobacterium tuberculosis. A comprehensive understanding of mycolic acids is of paramount significance in the pursuit of developing tuberculosis therapeutics and unraveling the intricacies of its pathogenic mechanisms.
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Affiliation(s)
- Haoran Wang
- College of Veterinary Medicine, China Agricultural University, Beijing 100086, China; (H.W.); (D.L.)
- National Key Laboratory of Veterinary Public Health and Safety, Beijing 100086, China
| | - Dingpu Liu
- College of Veterinary Medicine, China Agricultural University, Beijing 100086, China; (H.W.); (D.L.)
- National Key Laboratory of Veterinary Public Health and Safety, Beijing 100086, China
| | - Xiangmei Zhou
- College of Veterinary Medicine, China Agricultural University, Beijing 100086, China; (H.W.); (D.L.)
- National Key Laboratory of Veterinary Public Health and Safety, Beijing 100086, China
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7
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Mousavian Z, Källenius G, Sundling C. From simple to complex: Protein-based biomarker discovery in tuberculosis. Eur J Immunol 2023; 53:e2350485. [PMID: 37740950 DOI: 10.1002/eji.202350485] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/15/2023] [Accepted: 09/22/2023] [Indexed: 09/25/2023]
Abstract
Tuberculosis (TB) is a deadly infectious disease that affects millions of people globally. TB proteomics signature discovery has been a rapidly growing area of research that aims to identify protein biomarkers for the early detection, diagnosis, and treatment monitoring of TB. In this review, we have highlighted recent advances in this field and how it is moving from the study of single proteins to high-throughput profiling and from only using proteomics to include additional types of data in multi-omics studies. We have further covered the different sample types and experimental technologies used in TB proteomics signature discovery, focusing on studies of HIV-negative adults. The published signatures were defined as either coming from hypothesis-based protein targeting or from unbiased discovery approaches. The methodological approaches influenced the type of proteins identified and were associated with the circulating protein abundance. However, both approaches largely identified proteins involved in similar biological pathways, including acute-phase responses and T-helper type 1 and type 17 responses. By analysing the frequency of proteins in the different signatures, we could also highlight potential robust biomarker candidates. Finally, we discuss the potential value of integration of multi-omics data and the importance of control cohorts and signature validation.
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Affiliation(s)
- Zaynab Mousavian
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Gunilla Källenius
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Christopher Sundling
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
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8
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Rahlwes KC, Dias BR, Campos PC, Alvarez-Arguedas S, Shiloh MU. Pathogenicity and virulence of Mycobacterium tuberculosis. Virulence 2023; 14:2150449. [PMID: 36419223 PMCID: PMC9817126 DOI: 10.1080/21505594.2022.2150449] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Mycobacterium tuberculosis (Mtb) is the causative agent of tuberculosis, an infectious disease with one of the highest morbidity and mortality rates worldwide. Leveraging its highly evolved repertoire of non-protein and protein virulence factors, Mtb invades through the airway, subverts host immunity, establishes its survival niche, and ultimately escapes in the setting of active disease to initiate another round of infection in a naive host. In this review, we will provide a concise synopsis of the infectious life cycle of Mtb and its clinical and epidemiologic significance. We will also take stock of its virulence factors and pathogenic mechanisms that modulate host immunity and facilitate its spread. Developing a greater understanding of the interface between Mtb virulence factors and host defences will enable progress toward improved vaccines and therapeutics to prevent and treat tuberculosis.
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Affiliation(s)
- Kathryn C. Rahlwes
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Beatriz R.S. Dias
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Priscila C. Campos
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Samuel Alvarez-Arguedas
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Michael U. Shiloh
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA,Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX, USA,CONTACT Michael U. Shiloh
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9
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Zihad SNK, Sifat N, Islam MA, Monjur-Al-Hossain A, Sikdar KYK, Sarker MMR, Shilpi JA, Uddin SJ. Role of pattern recognition receptors in sensing Mycobacterium tuberculosis. Heliyon 2023; 9:e20636. [PMID: 37842564 PMCID: PMC10570006 DOI: 10.1016/j.heliyon.2023.e20636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 09/06/2023] [Accepted: 10/03/2023] [Indexed: 10/17/2023] Open
Abstract
Mycobacterium tuberculosis is one of the major invasive intracellular pathogens causing most deaths by a single infectious agent. The interaction between host immune cells and this pathogen is the focal point of the disease, Tuberculosis. Host immune cells not only mount the protective action against this pathogen but also serve as the primary niche for growth. Thus, recognition of this pathogen by host immune cells and following signaling cascades are key dictators of the disease state. Immune cells, mainly belonging to myeloid cell lineage, recognize a wide variety of Mycobacterium tuberculosis ligands ranging from carbohydrate and lipids to proteins to nucleic acids by different membrane-bound and soluble pattern recognition receptors. Simultaneous interaction between different host receptors and pathogen ligands leads to immune-inflammatory response as well as contributes to virulence. This review summarizes the contribution of pattern recognition receptors of host immune cells in recognizing Mycobacterium tuberculosis and subsequent initiation of signaling pathways to provide the molecular insight of the specific Mtb ligands interacting with specific PRR, key adaptor molecules of the downstream signaling pathways and the resultant effector functions which will aid in identifying novel drug targets, and developing novel drugs and adjuvants.
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Affiliation(s)
| | - Nazifa Sifat
- Department of Pharmacy, ASA University of Bangladesh, Dhaka, 1207, Bangladesh
| | | | | | | | - Md Moklesur Rahman Sarker
- Department of Pharmacy, State University of Bangladesh, Dhaka, 1205, Bangladesh
- Department of Pharmacy, Gono University, Nolam, Mirzanagar, Savar, Dhaka 1344, Bangladesh
| | - Jamil A. Shilpi
- Pharmacy Discipline, Life Science School, Khulna University, Khulna, 9208, Bangladesh
| | - Shaikh Jamal Uddin
- Pharmacy Discipline, Life Science School, Khulna University, Khulna, 9208, Bangladesh
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10
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García-Bengoa M, Meurer M, Goethe R, Singh M, Reljic R, von Köckritz-Blickwede M. Role of phagocyte extracellular traps during Mycobacterium tuberculosis infections and tuberculosis disease processes. Front Microbiol 2023; 14:983299. [PMID: 37492257 PMCID: PMC10365110 DOI: 10.3389/fmicb.2023.983299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 06/19/2023] [Indexed: 07/27/2023] Open
Abstract
Mycobacterium tuberculosis (M.tb) infections remain one of the most significant causes of mortality worldwide. The current situation shows an emergence of new antibiotic-resistant strains making it difficult to control the tuberculosis (TB) disease. A large part of its success as a pathogen is due to its ability to persist for years or even decades without causing evident clinical manifestations. M.tb is highly successful in evading the host-defense by manipulating host-signalling pathways. Although macrophages are generally viewed as the key cell type involved in harboring M.tb, growing evidence shows that neutrophils also play a fundamental role. Both cells are known to act in multiple ways when encountering an invading pathogen, including phagocytosis, release of cytokines and chemokines, and oxidative burst. In addition, the formation of neutrophil extracellular traps (NETs) and macrophage extracellular traps (METs) has been described to contribute to M.tb infections. NETs/METs are extracellular DNA fibers with associated granule components, which are released upon activation of the cells by the pathogen or by pro-inflammatory mediators. On one hand, they can lead to a protective immune response by entrapment and killing of pathogens. However, on the other hand, they can also play a severe pathological role by inducing tissue damage. Extracellular traps (ETs) produced in the pulmonary alveoli can expand easily and expose tissue-damaging factors with detrimental effects. Since host-directed therapies offer a complementary strategy in TB, the knowledge of NET/MET formation is important for understanding potential protective versus detrimental pathways during innate immune signaling. In this review, we summarize the progress made in understanding the role of NETs/METs in the pathogenesis of TB.
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Affiliation(s)
- María García-Bengoa
- Institute for Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany
- LIONEX Diagnostics and Therapeutics GmbH, Braunschweig, Germany
| | - Marita Meurer
- Institute for Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Ralph Goethe
- Institute for Microbiology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Mahavir Singh
- LIONEX Diagnostics and Therapeutics GmbH, Braunschweig, Germany
| | - Rajko Reljic
- Institute for Infection and Immunity, St George’s University of London, London, United Kingdom
| | - Maren von Köckritz-Blickwede
- Institute for Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany
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11
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Holder A, Kolakowski J, Rosentreter C, Knuepfer E, Jégouzo SAF, Rosenwasser O, Harris H, Baumgaertel L, Gibson A, Werling D. Characterisation of the bovine C-type lectin receptor Mincle and potential evidence for an endogenous ligand. Front Immunol 2023; 14:1189587. [PMID: 37275870 PMCID: PMC10235688 DOI: 10.3389/fimmu.2023.1189587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 05/09/2023] [Indexed: 06/07/2023] Open
Abstract
Innate immune receptors that form complexes with secondary receptors, activating multiple signalling pathways, modulate cellular activation and play essential roles in regulating homeostasis and immunity. We have previously identified a variety of bovine C-type lectin-like receptors that possess similar functionality than their human orthologues. Mincle (CLEC4E), a heavily glycosylated monomer, is involved in the recognition of the mycobacterial component Cord factor (trehalose 6,6'-dimycolate). Here we characterise the bovine homologue of Mincle (boMincle), and demonstrate that the receptor is structurally and functionally similar to the human orthologue (huMincle), although there are some notable differences. In the absence of cross-reacting antibodies, boMincle-specific antibodies were created and used to demonstrate that, like the human receptor, boMincle is predominantly expressed by myeloid cells. BoMincle surface expression increases during the maturation of monocytes to macrophages. However, boMincle mRNA transcripts were also detected in granulocytes, B cells, and T cells. Finally, we show that boMincle binds to isolated bovine CD4+ T cells in a specific manner, indicating the potential to recognise endogenous ligands. This suggests that the receptor might also play a role in homeostasis in cattle.
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Affiliation(s)
- Angela Holder
- Centre for Vaccinology and Regenerative Medicine, Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, United Kingdom
| | - Jeannine Kolakowski
- Centre for Vaccinology and Regenerative Medicine, Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, United Kingdom
| | - Chloe Rosentreter
- Centre for Vaccinology and Regenerative Medicine, Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, United Kingdom
| | - Ellen Knuepfer
- Centre for Vaccinology and Regenerative Medicine, Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, United Kingdom
| | | | | | - Heather Harris
- Centre for Vaccinology and Regenerative Medicine, Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, United Kingdom
| | - Lotta Baumgaertel
- Centre for Vaccinology and Regenerative Medicine, Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, United Kingdom
| | - Amanda Gibson
- Centre for Vaccinology and Regenerative Medicine, Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, United Kingdom
- Department of Life Sciences, Aberystwyth University, Aberystwyth, Ceredigion, United Kingdom
| | - Dirk Werling
- Centre for Vaccinology and Regenerative Medicine, Department of Pathobiology and Population Sciences, Royal Veterinary College, North Mymms, United Kingdom
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12
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Sharma A, Rijavec M, Tomar S, Yamani A, Ganesan V, Krempski J, Schuler CF, Bunyavanich S, Korosec P, Hogan SP. Acute systemic myeloid inflammatory and stress response in severe food allergic reactions. Clin Exp Allergy 2023; 53:536-549. [PMID: 36756745 PMCID: PMC11157667 DOI: 10.1111/cea.14273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/28/2022] [Accepted: 11/20/2022] [Indexed: 02/10/2023]
Abstract
INTRODUCTION Food allergic reactions can be severe and potentially life-threatening and the underlying immunological processes that contribute to the severity of reactions are poorly understood. The aim of this study is to integrate bulk RNA-sequencing of human and mouse peripheral blood mononuclear cells during food allergic reactions and in vivo mouse models of food allergy to identify dysregulated immunological processes associated with severe food allergic reactions. METHODS Bulk transcriptomics of whole blood from human and mouse following food allergic reactions combined with integrative differential expressed gene bivariate and module eigengene network analyses to identify the whole blood transcriptome associated with food allergy severity. In vivo validation immune cell and gene expression in mice following IgE-mediated reaction. RESULTS Bulk transcriptomics of whole blood from mice with different severity of food allergy identified gene ontology (GO) biological processes associated with innate and inflammatory immune responses, dysregulation of MAPK and NFkB signalling and identified 429 genes that correlated with reaction severity. Utilizing two independent human cohorts, we identified 335 genes that correlated with severity of peanut-induced food allergic reactions. Mapping mouse food allergy severity transcriptome onto the human transcriptome revealed 11 genes significantly dysregulated and correlated with severity. Analyses of whole blood from mice undergoing an IgE-mediated reaction revealed a rapid change in blood leukocytes particularly inflammatory monocytes (Ly6Chi Ly6G- ) and neutrophils that was associated with changes in CLEC4E, CD218A and GPR27 surface expression. CONCLUSIONS Collectively, IgE-mediated food allergy severity is associated with a rapid innate inflammatory response associated with acute cellular stress processes and dysregulation of peripheral blood inflammatory myeloid cell frequencies.
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Affiliation(s)
- Ankit Sharma
- Mary H Weiser Food Allergy Center, Department of Pathology, Michigan Medicine, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200
| | - Matija Rijavec
- University Clinic of Respiratory and Allergic Diseases Golnik, 4204 Golnik, Slovenia
- Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Sunil Tomar
- Mary H Weiser Food Allergy Center, Department of Pathology, Michigan Medicine, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200
| | - Amnah Yamani
- Mary H Weiser Food Allergy Center, Department of Pathology, Michigan Medicine, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Varsha Ganesan
- Mary H Weiser Food Allergy Center, Department of Pathology, Michigan Medicine, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200
| | - James Krempski
- Mary H Weiser Food Allergy Center, Department of Pathology, Michigan Medicine, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200
| | - Charles F Schuler
- Mary H Weiser Food Allergy Center, Department of Pathology, Michigan Medicine, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200
- Division of Allergy and Immunology, Michigan medicine University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200
| | - Supinda Bunyavanich
- Division of Allergy and Immunology, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY; Icahn Institute for Data Science and Genome Technology, Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Peter Korosec
- University Clinic of Respiratory and Allergic Diseases Golnik, 4204 Golnik, Slovenia
- Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Simon P. Hogan
- Mary H Weiser Food Allergy Center, Department of Pathology, Michigan Medicine, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200
- Department of Pathology, Michigan Medicine, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109-2200
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13
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Research progress on Mincle as a multifunctional receptor. Int Immunopharmacol 2023; 114:109467. [PMID: 36436471 DOI: 10.1016/j.intimp.2022.109467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/25/2022] [Accepted: 11/13/2022] [Indexed: 11/25/2022]
Abstract
Macrophage-induced C-type lectin (Mincle), a lipopolysaccharide-induced protein, is widely expressed on antigen-presenting cells. Mincle acts as a pattern recognition receptor that recognizes pathogen-associated molecular patterns of pathogens such as bacteria and fungi, mainly glycolipids, which induces an acquired immune response against microbial infection. Interestingly, Mincle can also identify patterns of lipid damage-associated molecule patterns released by injured cells, such as Sin3-associated protein 130 and β-glucosylceramides, which induces sterile inflammation and ultimately accelerates the progression of stroke, obesity, hepatitis, kidney injury, autoimmune diseases and tumors by promoting tissue inflammation. This article will review the various functions of Mincle, such as mediating sterile inflammation of tissues to accelerate disease progression, initiating immune responses to fight infection and promoting tumor progression.
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14
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Schick J, Altunay M, Lacorcia M, Marschner N, Westermann S, Schluckebier J, Schubart C, Bodendorfer B, Christensen D, Alexander C, Wirtz S, Voehringer D, da Costa CP, Lang R. IL-4 and helminth infection downregulate MINCLE-dependent macrophage response to mycobacteria and Th17 adjuvanticity. eLife 2023; 12:72923. [PMID: 36753434 PMCID: PMC9908076 DOI: 10.7554/elife.72923] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 01/30/2023] [Indexed: 02/09/2023] Open
Abstract
The myeloid C-type lectin receptor (CLR) MINCLE senses the mycobacterial cell wall component trehalose-6,6'-dimycolate (TDM). Recently, we found that IL-4 downregulates MINCLE expression in macrophages. IL-4 is a hallmark cytokine in helminth infections, which appear to increase the risk for mycobacterial infection and active tuberculosis. Here, we investigated functional consequences of IL-4 and helminth infection on MINCLE-driven macrophage activation and Th1/Th17 adjuvanticity. IL-4 inhibited MINCLE and cytokine induction after macrophage infection with Mycobacterium bovis bacille Calmette-Guerin (BCG). Infection of mice with BCG upregulated MINCLE on myeloid cells, which was inhibited by IL-4 plasmid injection and by infection with the nematode Nippostrongylus brasiliensis in monocytes. To determine the impact of helminth infection on MINCLE-dependent immune responses, we vaccinated mice with a recombinant protein together with the MINCLE ligand trehalose-6,6-dibehenate (TDB) as adjuvant. Concurrent infection with N. brasiliensis or with Schistosoma mansoni promoted T cell-derived IL-4 production and suppressed Th1/Th17 differentiation in the spleen. In contrast, helminth infection did not reduce Th1/Th17 induction by TDB in draining peripheral lymph nodes, where IL-4 levels were unaltered. Upon use of the TLR4-dependent adjuvant G3D6A, N. brasiliensis infection impaired selectively the induction of splenic antigen-specific Th1 but not of Th17 cells. Inhibition of MINCLE-dependent Th1/Th17 responses in mice infected with N. brasiliensis was dependent on IL-4/IL-13. Thus, helminth infection attenuated the Th17 response to MINCLE-dependent immunization in an organ- and adjuvant-specific manner via the Th2 cytokines IL-4/IL-13. Taken together, our results demonstrate downregulation of MINCLE expression on monocytes and macrophages by IL-4 as a possible mechanism of thwarted Th17 vaccination responses by underlying helminth infection.
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Affiliation(s)
- Judith Schick
- Institut für Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-NürnbergErlangenGermany
| | - Meltem Altunay
- Institut für Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-NürnbergErlangenGermany
| | - Matthew Lacorcia
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Center for Global Health, Technische Universität MünchenMunichGermany,Center for Global Health, Technical University MunichMunichGermany
| | - Nathalie Marschner
- Institut für Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-NürnbergErlangenGermany
| | - Stefanie Westermann
- Infektionsbiologische Abteilung, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-NürnbergErlangenGermany
| | - Julia Schluckebier
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Center for Global Health, Technische Universität MünchenMunichGermany,Center for Global Health, Technical University MunichMunichGermany
| | - Christoph Schubart
- Infektionsbiologische Abteilung, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-NürnbergErlangenGermany
| | - Barbara Bodendorfer
- Institut für Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-NürnbergErlangenGermany
| | - Dennis Christensen
- Adjuvant Research, Department of Infectious Disease Immunology, Statens Serum InstitutCopenhagenDenmark
| | - Christian Alexander
- Cellular Microbiology, Forschungszentrum Borstel, Leibniz Lung Center BorstelBorstelGermany
| | - Stefan Wirtz
- Medizinische Klinik 1, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-NürnbergErlangenGermany
| | - David Voehringer
- Infektionsbiologische Abteilung, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-NürnbergErlangenGermany
| | - Clarissa Prazeres da Costa
- Institut für Medizinische Mikrobiologie, Immunologie und Hygiene, Center for Global Health, Technische Universität MünchenMunichGermany,Center for Global Health, Technical University MunichMunichGermany
| | - Roland Lang
- Institut für Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-NürnbergErlangenGermany
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15
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Stephens M, Keane K, Roizes S, Liao S, Weid PYVD. Mincle-binding DNA aptamer demonstrates therapeutic potential in a model of inflammatory bowel disease. MOLECULAR THERAPY - NUCLEIC ACIDS 2022; 28:935-947. [PMID: 35782912 PMCID: PMC9207717 DOI: 10.1016/j.omtn.2022.05.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/12/2022] [Indexed: 10/25/2022]
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16
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Dubé JY, McIntosh F, Behr MA. Mice Dually Disrupted for Nod2 and Mincle Manifest Early Bacteriological Control but Late Susceptibility During Mycobacterium tuberculosis Infection. Front Immunol 2022; 13:862992. [PMID: 35418999 PMCID: PMC8995500 DOI: 10.3389/fimmu.2022.862992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/04/2022] [Indexed: 11/13/2022] Open
Abstract
Pattern recognition receptors Mincle and NOD2 have been implicated in mycobacterial immunity. However, knockout (KO) animal infection studies with Mycobacterium tuberculosis (Mtb) have had mild/delayed phenotypes. Given that genetic susceptibility to infectious diseases can be polygenic, we hypothesized that murine double knockout (DKO) of Mincle and Nod2 would result in exacerbation of altered immunity to mycobacterial infection leading to a more extreme phenotype than either KO alone. To test this hypothesis, we monitored bacterial burden, immune responses and survival following in vivo infections with Mtb in DKO mice for comparison to wildtype (WT) and single KOs. Bacterial burden and immune responses were not significantly affected at 3 and 6 weeks after infection in all mutant mice. At later timepoints, Nod2-KO mice had reduced survival compared to wildtype mice, and Mincle-KO survival was intermediate. Unexpectedly, dual disruption had no further effect; rather, DKO mice phenocopied Nod2-KO mice. We observed that Mtb-related death, exclusively in mice with disrupted Nod2, was accompanied by greater pulmonary cell death and distinct large necrotic foci. Therefore, determining how these receptors contribute to mycobacterial resistance will require analysis of immunophenotypes and their consequences on host pathology.
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Affiliation(s)
- Jean-Yves Dubé
- Department of Microbiology and Immunology, McGill University, Montréal, QC, Canada.,Infectious Diseases and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montréal, QC, Canada.,McGill International TB Centre, Montréal, QC, Canada
| | - Fiona McIntosh
- Infectious Diseases and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montréal, QC, Canada.,McGill International TB Centre, Montréal, QC, Canada
| | - Marcel A Behr
- Department of Microbiology and Immunology, McGill University, Montréal, QC, Canada.,Infectious Diseases and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montréal, QC, Canada.,McGill International TB Centre, Montréal, QC, Canada.,Department of Medicine, McGill University Health Centre, Montréal, QC, Canada
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17
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Bénard A, Podolska MJ, Czubayko F, Kutschick I, Klösch B, Jacobsen A, Naschberger E, Brunner M, Krautz C, Trufa DI, Sirbu H, Lang R, Grützmann R, Weber GF. Pleural Resident Macrophages and Pleural IRA B Cells Promote Efficient Immunity Against Pneumonia by Inducing Early Pleural Space Inflammation. Front Immunol 2022; 13:821480. [PMID: 35493510 PMCID: PMC9047739 DOI: 10.3389/fimmu.2022.821480] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 03/22/2022] [Indexed: 11/13/2022] Open
Abstract
Airway infection is a major cause of mortality worldwide. The identification of new mechanisms aiding in effective host immune response is therefore required. Here, we show that the specific depletion of the pleural immune cell compartment during bacterial pneumonia resulted in a reduced pulmonary immune response and increased mortality in mice. Bacterial airway infection provoked early pleural space (PS) inflammation characterized by innate response activator (IRA) B cell development and pleural large resident macrophage (LRM) necroptosis, the repopulation of LRMs being driven by cellular proliferation in situ. Necroptotic LRMs amplified PS inflammation by stimulating pleural Mincle-expressing macrophages whereas IRA B cells contributed partially to GM-CSF-induced PS inflammation. Upon pulmonary infection, the induction of PS inflammation resulted in reduced bacterial burden whereas the specific depletion of pleural resident macrophages led to increased mortality and bacterial burden and reduced pulmonary immunity. Moreover, mice in which B cells were unable to produce GM-CSF exhibited reduced CD103+ dendritic cells and reduced CD4+ T cell numbers in the draining lymph node. Altogether, our results describe a previously unrecognized mechanism of pleural space inflammation necessary for effective protection against bacterial airway infection.
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Affiliation(s)
- Alan Bénard
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Malgorzata J. Podolska
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Franziska Czubayko
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Isabella Kutschick
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Bettina Klösch
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Anne Jacobsen
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Elisabeth Naschberger
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Maximilian Brunner
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christian Krautz
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Denis I. Trufa
- Department of Thoracic Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Horia Sirbu
- Department of Thoracic Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Roland Lang
- Institute of Clinical Microbiology, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Robert Grützmann
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Georg F. Weber
- Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
- *Correspondence: Georg F. Weber,
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18
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Coxiella burnetii Virulent Phase I and avirulent Phase II Variants Differentially Manipulate Autophagy pathway in Neutrophils. Infect Immun 2022; 90:e0053421. [PMID: 35100012 DOI: 10.1128/iai.00534-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Coxiella burnetii is an obligate intracellular gram-negative bacterium that causes Q fever in humans. Virulent C. burnetii Nine Mile Phase I (NMI) strain causes disease in animal models, while avirulent NM phase II (NMII) strain does not. In this study, we found that NMI infection induces severe splenomegaly and bacterial burden in the spleen in BALB/c mice, while NMII infection does not. Compared to NMII-infected mice, a significantly higher number of CD11b+Ly6g+ neutrophils accumulated in the liver, lung and spleen of NMI-infected mice. Thus, neutrophil accumulation correlates with NMI and NMII infection induced inflammatory response. In vitro studies also demonstrated that although NMII exhibited a higher infection rate than NMI in mouse bone-marrow neutrophils (BMNs), NMI-infected BMNs survive longer than NMII-infected BMNs. These results suggest that the differential interactions of NMI and NMII with neutrophils may be related to their ability to cause disease in animals. To understand the molecular mechanism underlying the differential interactions of NMI and NMII with neutrophils, the global transcriptomic gene expressions were compared between NMI- and NMII-infected-BMNs by RNA-seq analysis. Interestingly, several genes involved in autophagy related pathways, particularly the membrane-trafficking and lipid metabolism are upregulated in NMII-infected BMNs but downregulated in NMI-infected BMNs. Immunofluorescence and immunoblot analysis indicate that compared to NMI-infected BMNs, vacuoles in NMII-infected-BMNs exhibit increased autophagic flux along with phosphatidylserine translocation in cell membrane. Similar to neutrophils, NMII activated LC3-mediated autophagy in human macrophage. These findings suggest that NMI and NMII's differential manipulation of autophagy may relate to their pathogenesis.
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19
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Shimazu T, Suzuki M, Takasaki R, Besshi A, Suzuki Y, Iwakura Y. Heat-Killed Levilactobacillus brevis as a Candidate Postbiotics Through Immunostimulation Mediated by Macrophage-Inducible C-Type Lectin. Probiotics Antimicrob Proteins 2022; 15:774-784. [PMID: 35048327 DOI: 10.1007/s12602-021-09890-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2021] [Indexed: 11/30/2022]
Abstract
To understand the beneficial health-promoting effects of lactic acid bacteria (LAB) on immune cells, it is necessary to understand the relationship between LAB and innate immune receptors. We investigated the possible involvement of C-type lectin receptors (CLRs) in the immune-stimulating function of LAB in several strains. We found that levels of interleukin (IL)-6, tumor necrosis factor (TNF)-α, and IL-10 were reduced by the addition of inhibitors for spleen tyrosine kinase (syk), a signaling molecule used by several CLRs. Furthermore, employing CLR-Fc fusion proteins and reporter cells, we found that macrophage-inducible C-type lectin (Mincle) binds to Levilactobacillus brevis strain La37. Interestingly, this interaction was only observed in heat-killed L. brevis and disappeared after proteinase K treatment. Seven strains of L. brevis from different sources were also examined; among them, six strains showed Mincle reactivity, and the characteristics of the ligand were similar to those of La37. These results may facilitate a better understanding of the immunomodulatory effects of LAB for the development of functional foods.
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Affiliation(s)
- Tomoyuki Shimazu
- Department of Food, Agriculture and Environment, Miyagi University, Sendai, 982-0215, Japan.
| | - Mai Suzuki
- Department of Food, Agriculture and Environment, Miyagi University, Sendai, 982-0215, Japan
| | - Ryo Takasaki
- Department of Food, Agriculture and Environment, Miyagi University, Sendai, 982-0215, Japan
| | - Asuka Besshi
- Department of Food, Agriculture and Environment, Miyagi University, Sendai, 982-0215, Japan
| | - Yuna Suzuki
- Department of Food, Agriculture and Environment, Miyagi University, Sendai, 982-0215, Japan
| | - Yoichiro Iwakura
- Center for Animal Disease Models, Research Institute for Biomedical Science, Tokyo University of Science, Chiba, Japan
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20
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The protective action of piperlongumine against mycobacterial pulmonary tuberculosis in its mitigation of inflammation and macrophage infiltration in male BALB/c mice. J Vet Res 2021; 65:431-440. [PMID: 35111996 PMCID: PMC8775741 DOI: 10.2478/jvetres-2021-0061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 10/26/2021] [Indexed: 11/20/2022] Open
Abstract
Introduction Piperlongumine (PL) is a bioactive alkaloid and medicinal compound of piperamide isolated from the long pepper (Piper longum Linn). It has demonstrated bactericidal action against Mycobacterium tuberculosis (MTB), the cause of pulmonary tuberculosis; nevertheless, immunomodulatory activity had not been identified for it in MTB-triggered granulomatous inflammation. This study investigated if piperlongumine could inhibit such inflammation. Material and Methods Mycobacterium tuberculosis strain H37Rv was subjected to a broth microdilution assay. Piperlongumine at 5, 15, and 25 μg/mL, 0.2% dimethyl sulphoxide as control or 4 μM of dexamethasone were tested in vitro on MH-S murine alveolar macrophages. BALB/c mice were orally administered PL at 50, 100 and 150 mg/kg b.w. after trehalose-6,6-dimycolate (TDM) stimulation. Chemokine and cytokine concentrations were determined in lung supernatants. Flow cytometry and Western blot analysis were performed to determine phosphorylated spleen tyrosine kinase (Syk), c-Jun N-terminal kinase (JNK) and extracellular signal-regulated kinase (ERK) pathways. Results Piperlongumine inhibited inflammatory mediators and adherence of lymphocyte function-associated antigen 1 to MH-S cells following TDM activation. It also improved macrophage clearance of MTB. In TDM-stimulated MH-S cells, PL significantly influenced the macrophage inducible Ca2+-dependent lectin receptor (Mincle)-Syk-ERK signalling pathway. Oral dosing of PL effectively suppressed the development of pulmonary granulomas and inflammatory reactions in the TDM-elicited mouse granuloma model. Conclusion PL as an inhibitor of MTB-triggered granulomatous inflammation may be an effective complementary treatment for mycobacterial infection.
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21
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Nguyen GT, Xu S, Adams W, Leong JM, Bunnell SC, Mansour MK, Sykes DB, Mecsas J. Neutrophils require SKAP2 for reactive oxygen species production following C-type lectin and Candida stimulation. iScience 2021; 24:102871. [PMID: 34386732 PMCID: PMC8346660 DOI: 10.1016/j.isci.2021.102871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/03/2021] [Accepted: 07/14/2021] [Indexed: 11/29/2022] Open
Abstract
Signaling cascades converting the recognition of pathogens to efficient inflammatory responses by neutrophils are critical for host survival. SKAP2, an adaptor protein, is required for reactive oxygen species (ROS) generation following neutrophil stimulation by integrins, formyl peptide receptors, and for host defense against the Gram-negative bacterial pathogens, Klebsiella pneumoniae and Yersinia pseudotuberculosis. Using neutrophils from murine HoxB8-immortalized progenitors, we show that SKAP2 in neutrophils is crucial for maximal ROS response to purified C-type lectin receptor agonists and to the fungal pathogens, Candida glabrata and Candida albicans, and for robust killing of C. glabrata. Inside-out signaling to integrin and Syk phosphorylation occurred independently of SKAP2 after Candida infection. However, Pyk2, ERK1/2, and p38 phosphorylation were significantly reduced after infection with C. glabrata and K. pneumoniae in Skap2-/- neutrophils. These data demonstrate the importance of SKAP2 in ROS generation and host defense beyond antibacterial immunity to include CLRs and Candida species.
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Affiliation(s)
- Giang T. Nguyen
- Graduate Program in Immunology, Tufts Graduate School of Biomedical Sciences, Boston, MA 02111, USA
| | - Shuying Xu
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Walter Adams
- Department of Molecular Biology and Microbiology, School of Medicine, Tufts University, Boston, MA 02111, USA
| | - John M. Leong
- Graduate Program in Immunology, Tufts Graduate School of Biomedical Sciences, Boston, MA 02111, USA
- Department of Molecular Biology and Microbiology, School of Medicine, Tufts University, Boston, MA 02111, USA
| | - Stephen C. Bunnell
- Graduate Program in Immunology, Tufts Graduate School of Biomedical Sciences, Boston, MA 02111, USA
- Department of Immunology, School of Medicine, Tufts University, Boston, MA 02111, USA
| | - Michael K. Mansour
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - David B. Sykes
- Department of Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Stem Cell Institute, Cambridge, MA 02115, USA
| | - Joan Mecsas
- Graduate Program in Immunology, Tufts Graduate School of Biomedical Sciences, Boston, MA 02111, USA
- Department of Molecular Biology and Microbiology, School of Medicine, Tufts University, Boston, MA 02111, USA
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22
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Nontuberculous Mycobacteria, Macrophages, and Host Innate Immune Response. Infect Immun 2021; 89:e0081220. [PMID: 34097459 DOI: 10.1128/iai.00812-20] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Although nontuberculous mycobacteria (NTM) are considered opportunistic infections, incidence and prevalence of NTM infection are increasing worldwide becoming a major public health threat. Innate immunity plays an essential role in mediating the initial host response against these intracellular bacteria. Specifically, macrophages phagocytose and eliminate NTM and act as antigen-presenting cells, which trigger downstream activation of cellular and humoral adaptive immune responses. Identification of macrophage receptors, mycobacterial ligands, phagosome maturation, autophagy/necrosis, and escape mechanisms are important components of this immunity network. The role of the macrophage in mycobacterial disease has mainly been studied in tuberculosis (TB), but limited information exists on its role in NTM. In this review, we focus on NTM immunity, the role of macrophages, and host interaction in NTM infection.
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Wu X, Wu Y, Zheng R, Tang F, Qin L, Lai D, Zhang L, Chen L, Yan B, Yang H, Wang Y, Li F, Zhang J, Wang F, Wang L, Cao Y, Ma M, Liu Z, Chen J, Huang X, Wang J, Jin R, Wang P, Sun Q, Sha W, Lyu L, Moura‐Alves P, Dorhoi A, Pei G, Zhang P, Chen J, Gao S, Randow F, Zeng G, Chen C, Ye X, Kaufmann SHE, Liu H, Ge B. Sensing of mycobacterial arabinogalactan by galectin-9 exacerbates mycobacterial infection. EMBO Rep 2021; 22:e51678. [PMID: 33987949 PMCID: PMC8256295 DOI: 10.15252/embr.202051678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 04/10/2021] [Accepted: 04/16/2021] [Indexed: 12/14/2022] Open
Abstract
Mycobacterial arabinogalactan (AG) is an essential cell wall component of mycobacteria and a frequent structural and bio-synthetical target for anti-tuberculosis (TB) drug development. Here, we report that mycobacterial AG is recognized by galectin-9 and exacerbates mycobacterial infection. Administration of AG-specific aptamers inhibits cellular infiltration caused by Mycobacterium tuberculosis (Mtb) or Mycobacterium bovis BCG, and moderately increases survival of Mtb-infected mice or Mycobacterium marinum-infected zebrafish. AG interacts with carbohydrate recognition domain (CRD) 2 of galectin-9 with high affinity, and galectin-9 associates with transforming growth factor β-activated kinase 1 (TAK1) via CRD2 to trigger subsequent activation of extracellular signal-regulated kinase (ERK) as well as induction of the expression of matrix metalloproteinases (MMPs). Moreover, deletion of galectin-9 or inhibition of MMPs blocks AG-induced pathological impairments in the lung, and the AG-galectin-9 axis aggravates the process of Mtb infection in mice. These results demonstrate that AG is an important virulence factor of mycobacteria and galectin-9 is a novel receptor for Mtb and other mycobacteria, paving the way for the development of novel effective TB immune modulators.
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Dubé JY, Fava VM, Schurr E, Behr MA. Underwhelming or Misunderstood? Genetic Variability of Pattern Recognition Receptors in Immune Responses and Resistance to Mycobacterium tuberculosis. Front Immunol 2021; 12:714808. [PMID: 34276708 PMCID: PMC8278570 DOI: 10.3389/fimmu.2021.714808] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 06/17/2021] [Indexed: 12/23/2022] Open
Abstract
Human genetic control is thought to affect a considerable part of the outcome of infection with Mycobacterium tuberculosis (Mtb). Most of us deal with the pathogen by containment (associated with clinical "latency") or sterilization, but tragically millions each year do not. After decades of studies on host genetic susceptibility to Mtb infection, genetic variation has been discovered to play a role in tuberculous immunoreactivity and tuberculosis (TB) disease. Genes encoding pattern recognition receptors (PRRs) enable a consistent, molecularly direct interaction between humans and Mtb which suggests the potential for co-evolution. In this review, we explore the roles ascribed to PRRs during Mtb infection and ask whether such a longstanding and intimate interface between our immune system and this pathogen plays a critical role in determining the outcome of Mtb infection. The scientific evidence to date suggests that PRR variation is clearly implicated in altered immunity to Mtb but has a more subtle role in limiting the pathogen and pathogenesis. In contrast to 'effectors' like IFN-γ, IL-12, Nitric Oxide and TNF that are critical for Mtb control, 'sensors' like PRRs are less critical for the outcome of Mtb infection. This is potentially due to redundancy of the numerous PRRs in the innate arsenal, such that Mtb rarely goes unnoticed. Genetic association studies investigating PRRs during Mtb infection should therefore be designed to investigate endophenotypes of infection - such as immunological or clinical variation - rather than just TB disease, if we hope to understand the molecular interface between innate immunity and Mtb.
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Affiliation(s)
- Jean-Yves Dubé
- Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
- Program in Infectious Diseases and Immunity in Global Health, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- McGill International TB Centre, McGill University, Montreal, QC, Canada
| | - Vinicius M. Fava
- Program in Infectious Diseases and Immunity in Global Health, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- McGill International TB Centre, McGill University, Montreal, QC, Canada
| | - Erwin Schurr
- Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
- Program in Infectious Diseases and Immunity in Global Health, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- McGill International TB Centre, McGill University, Montreal, QC, Canada
- Department of Human Genetics, Faculty of Medicine, McGill University, Montreal, QC, Canada
- Department of Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Marcel A. Behr
- Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
- Program in Infectious Diseases and Immunity in Global Health, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- McGill International TB Centre, McGill University, Montreal, QC, Canada
- Department of Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada
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25
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Neutrophils in Tuberculosis: Cell Biology, Cellular Networking and Multitasking in Host Defense. Int J Mol Sci 2021; 22:ijms22094801. [PMID: 33946542 PMCID: PMC8125784 DOI: 10.3390/ijms22094801] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 12/20/2022] Open
Abstract
Neutrophils readily infiltrate infection foci, phagocytose and usually destroy microbes. In tuberculosis (TB), a chronic pulmonary infection caused by Mycobacterium tuberculosis (Mtb), neutrophils harbor bacilli, are abundant in tissue lesions, and their abundances in blood correlate with poor disease outcomes in patients. The biology of these innate immune cells in TB is complex. Neutrophils have been assigned host-beneficial as well as deleterious roles. The short lifespan of neutrophils purified from blood poses challenges to cell biology studies, leaving intracellular biological processes and the precise consequences of Mtb–neutrophil interactions ill-defined. The phenotypic heterogeneity of neutrophils, and their propensity to engage in cellular cross-talk and to exert various functions during homeostasis and disease, have recently been reported, and such observations are newly emerging in TB. Here, we review the interactions of neutrophils with Mtb, including subcellular events and cell fate upon infection, and summarize the cross-talks between neutrophils and lung-residing and -recruited cells. We highlight the roles of neutrophils in TB pathophysiology, discussing recent findings from distinct models of pulmonary TB, and emphasize technical advances that could facilitate the discovery of novel neutrophil-related disease mechanisms and enrich our knowledge of TB pathogenesis.
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Tanaka M, Saka-Tanaka M, Ochi K, Fujieda K, Sugiura Y, Miyamoto T, Kohda H, Ito A, Miyazawa T, Matsumoto A, Aoe S, Miyamoto Y, Tsuboi N, Maruyama S, Suematsu M, Yamasaki S, Ogawa Y, Suganami T. C-type lectin Mincle mediates cell death-triggered inflammation in acute kidney injury. J Exp Med 2021; 217:152022. [PMID: 32797195 PMCID: PMC7596812 DOI: 10.1084/jem.20192230] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 06/08/2020] [Accepted: 07/07/2020] [Indexed: 12/17/2022] Open
Abstract
Accumulating evidence indicates that cell death triggers sterile inflammation and that impaired clearance of dead cells causes nonresolving inflammation; however, the underlying mechanisms are still unclear. Here, we show that macrophage-inducible C-type lectin (Mincle) senses renal tubular cell death to induce sustained inflammation after acute kidney injury in mice. Mincle-deficient mice were protected against tissue damage and subsequent atrophy of the kidney after ischemia–reperfusion injury. Using lipophilic extract from the injured kidney, we identified β-glucosylceramide as an endogenous Mincle ligand. Notably, free cholesterol markedly enhanced the agonistic effect of β-glucosylceramide on Mincle. Moreover, β-glucosylceramide and free cholesterol accumulated in dead renal tubules in proximity to Mincle-expressing macrophages, where Mincle was supposed to inhibit clearance of dead cells and increase proinflammatory cytokine production. This study demonstrates that β-glucosylceramide in combination with free cholesterol acts on Mincle as an endogenous ligand to induce cell death–triggered, sustained inflammation after acute kidney injury.
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Affiliation(s)
- Miyako Tanaka
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan.,Department of Immunometabolism, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Marie Saka-Tanaka
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan.,Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kozue Ochi
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan.,Department of Immunometabolism, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kumiko Fujieda
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan.,Department of Immunometabolism, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuki Sugiura
- Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan
| | - Tomofumi Miyamoto
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiro Kohda
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan.,Department of Immunometabolism, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ayaka Ito
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan.,Department of Immunometabolism, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Taiki Miyazawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akira Matsumoto
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
| | - Seiichiro Aoe
- Department of Home Economics, Otsuma Women's University, Tokyo, Japan
| | - Yoshihiro Miyamoto
- Division of Genomic Diagnosis and Healthcare, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Naotake Tsuboi
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Nephrology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Shoichi Maruyama
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Makoto Suematsu
- Department of Biochemistry, Keio University School of Medicine, Tokyo, Japan
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Yoshihiro Ogawa
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan.,Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Molecular and Cellular Metabolism, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology, Tokyo, Japan
| | - Takayoshi Suganami
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan.,Department of Immunometabolism, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Innate Immune Pattern Recognition Receptors of Mycobacterium tuberculosis: Nature and Consequences for Pathogenesis of Tuberculosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1313:179-215. [PMID: 34661896 DOI: 10.1007/978-3-030-67452-6_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Innate immunity against Mycobacterium tuberculosis is a critical early response to prevent the establishment of the infection. Despite recent advances in understanding the host-pathogen dialogue in the early stages of tuberculosis (TB), much has yet to be learnt. The nature and consequences of this dialogue ultimately determine the path of infection: namely, either early clearance of M. tuberculosis, or establishment of M. tuberculosis infection leading to active TB disease and/or latent TB infection. On the frontline in innate immunity are pattern recognition receptors (PRRs), with soluble factors (e.g. collectins and complement) and cell surface factors (e.g. Toll-like receptors and other C-type lectin receptors (Dectin 1/2, Nod-like receptors, DC-SIGN, Mincle, mannose receptor, and MCL) that play a central role in recognising M. tuberculosis and facilitating its clearance. However, in a 'double-edged sword' scenario, these factors can also be involved in enhancement of pathogenesis as well. Furthermore, innate immunity is also a critical bridge in establishing the subsequent adaptive immune response, which is also responsible for granuloma formation that cordons off M. tuberculosis infection, establishing latency and acting as a reservoir for bacterial persistence and dissemination of future disease. This chapter discusses the current understanding of pattern recognition of M. tuberculosis by innate immunity and the role this plays in the pathogenesis and protection against TB.
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Zhao J, Kim JW, Zhou Z, Qi J, Tian W, Lim CW, Han KM, Kim B. Macrophage-Inducible C-Type Lectin Signaling Exacerbates Acetaminophen-Induced Liver Injury by Promoting Kupffer Cell Activation in Mice. Mol Pharmacol 2020; 99:92-103. [PMID: 33262251 DOI: 10.1124/molpharm.120.000043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 11/18/2020] [Indexed: 02/06/2023] Open
Abstract
Overdose of acetaminophen (APAP) has become one of the most frequent causes of acute liver failure. Macrophage-inducible C-type lectin (Mincle) acts as a key moderator in immune responses by recognizing spliceosome-associated protein 130 (SAP130), which is an endogenous ligand released by necrotic cells. This study aims to explore the function of Mincle in APAP-induced hepatotoxicity. Wild-type (WT) and Mincle knockout (KO) mice were used to induce acute liver injury by injection of APAP. The hepatic expressions of Mincle, SAP130, and Mincle signaling intermediate (Syk) were markedly upregulated after the APAP challenge. Mincle KO mice showed attenuated injury in the liver, as shown by reduced pathologic lesions, decreased alanine aminotransferase and aspartate aminotransferase levels, downregulated levels of inflammatory cytokines, and decreased neutrophil infiltration. Consistently, inhibition of Syk signaling by GS9973 alleviated APAP hepatotoxicity. Most importantly, Kupffer cells (KCs) were found as the major cellular source of Mincle. The depletion of KCs abolished the detrimental role of Mincle, and the adoptive transfer of WT KC to Mincle KO mice partially reversed the hyporesponsiveness to hepatotoxicity induced by APAP. Furthermore, the expression levels of interleukin (IL)-1β and neutrophil-attractant CXC chemokines were substantially lower in KCs isolated from APAP-treated Mincle KO mice compared with those from WT mice. Similar results were found in primary Mincle KO KCs treated with a ligand of Mincle (trehalose-6,6-dibehenate) or in conditioned media obtained from APAP-treated hepatocytes. Collectively, Mincle can regulate the inflammatory response of KCs, which is necessary for the complete progression of hepatotoxicity induced by APAP. SIGNIFICANCE STATEMENT: Acetaminophen (APAP) overdose is becoming a main cause of drug-induced acute liver damage in the developed world. This study showed that macrophage-inducible C-type lectin (Mincle) deletion or inhibition of Mincle downstream signaling attenuates APAP hepatotoxicity. Furthermore, Mincle as a modulator of Kupffer cell activation contributes to the full process of hepatotoxicity induced by APAP. This mechanism will offer valuable insights to overcome the limitation of APAP hepatotoxicity treatment.
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Affiliation(s)
- Jing Zhao
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Jong-Won Kim
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Zixiong Zhou
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Jing Qi
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Weishun Tian
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Chae Woong Lim
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Kang Min Han
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
| | - Bumseok Kim
- Biosafety Research Institute and College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeonbuk, Republic of Korea (J.Z., J.-W.K., Z.Z., J.Q., W.T., C.W.L., B.K.); Department of Pathology, Dongguk University Ilsan Hospital, Goyang, Republic of Korea (K.M.H.); and College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, People's Republic of China (J.Z.)
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Abstract
After both sterile and infectious insults, damage is inflicted on tissues leading to accidental or programmed cell death. In addition, events of programmed cell death also take place under homeostatic conditions, such as in embryo development or in the turnover of hematopoietic cells. Mammalian tissues are seeded with myeloid immune cells, which harbor a plethora of receptors that allow the detection of cell death, modulating immune responses. The myeloid C-type lectin receptors (CLRs) are one of the most prominent families of receptors involved in tailoring immunity after sensing dead cells. In this chapter, we will cover a diversity of signals arising from different forms of cell death and how they are recognized by myeloid CLRs. We will also explore how myeloid cells develop their sentinel function, exploring how some of these CLRs identify cell death and the type of responses triggered thereof. In particular, we will focus on DNGR-1 (CLEC9A), Mincle (CLEC4E), CLL-1 (CLEC12A), LOX-1 (OLR1), CD301 (CLEC10A) and DEC-205 (LY75) as paradigmatic death-sensing CLRs expressed by myeloid cells. The molecular processes triggered after cell death recognition by myeloid CLRs contribute to the regulation of immune responses in pathologies associated with tissue damage, such as infection, autoimmunity and cancer. A better understanding of these processes may help to improve the current approaches for therapeutic intervention.
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30
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Olvany JM, Sausville LN, White MJ, Tacconelli A, Tavera G, Sobota RS, Ciccacci C, Bohlbro AS, Wejse C, Williams SM, Sirugo G. CLEC4E (Mincle) genetic variation associates with pulmonary tuberculosis in Guinea-Bissau (West Africa). INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2020; 85:104560. [PMID: 32971250 PMCID: PMC7962542 DOI: 10.1016/j.meegid.2020.104560] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/10/2020] [Accepted: 09/17/2020] [Indexed: 12/18/2022]
Abstract
Tuberculosis (TB) is the leading cause of death from a single infectious agent. According to the WHO, 85% of cases in 2018 were pulmonary tuberculosis (PTB), making it the most prevalent form of the disease. Although the bacillus responsible for disease, Mycobacterium tuberculosis (MTB), is estimated to infect 1.7 billion people worldwide, only a small portion of those infected (5-10%) will transition into active TB. Because such a small fraction of infected people develop active disease, we hypothesized that underlying host genetic variation associates with developing active pulmonary disease. Variation in CLEC4E has been of interest in previous association studies showing either no effect or protection from PTB. For our study we assessed 60 SNPs in 11 immune genes, including CLEC4E, using a case-control study from Guinea-Bissau. The 289 cases and 322 controls differed in age, sex, and ethnicity all of which were included in adjusted models. Initial association analysis with unadjusted logistic regression revealed putative association with seven SNPs (p < 0.05). All SNPs were then assessed in an adjusted model. Of the six SNPs that remained significant, three of them were assigned to the CLEC4E gene (rs12302046, rs10841847, and rs11046143). Of these, only rs10841847 passed FDR adjustment for multiple testing. Adjusted regression analyses showed that the minor allele at rs10841847 associated with higher risk of developing PTB (OR = 1.55, CI = 1.22-1.96, p-value = 0.00036). Based on these initial association tests, CLEC4E seemed to be the predictor of interest for PTB risk in this population. Haplotype analysis (2-SNP and 3-SNP windows) showed that minor alleles in segments including rs10841847 were the only ones to pass the threshold of global significance, compared to other haplotypes (p-value < 0.05). Linkage disequilibrium patterns showed that rs12302046 is in high LD with rs10841847 (r2 = 0.67), and all other SNPs lost significance when adjusted for rs10841847 effects. These findings indicate that rs10841847 in CLEC4E is the single best predictor of pulmonary tuberculosis risk in our study population. These results provide evidence for the hypothesis that genetic variation of CLEC4E influences risk to TB in Guinea-Bissau.
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Affiliation(s)
- Jasmine M Olvany
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Lindsay N Sausville
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Marquitta J White
- Department of Medicine, University of California San Francisco, San Francisco, CA 94158, USA
| | | | - Gloria Tavera
- Department of Clinical Translational Science Collaborative, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Rafal S Sobota
- Northwestern Memorial Hospital, Northwestern University, Chicago, IL 60611, USA
| | - Cinzia Ciccacci
- UniCamillus, Saint Camillus International University of Health Sciences, 00131, Rome, Italy; Department of Biomedicine and Prevention, Genetics Section, University of Rome Tor Vergata, Rome, Italy
| | - Anders S Bohlbro
- Department of Clinical Medicine, Aarhus University Hospital, Skejby, Denmark
| | - Christian Wejse
- Bandim Health Project, Danish Epidemiology Science Centre and Statens Serum Institute, Bissau, Guinea-Bissau; Department of Infectious Diseases, Aarhus University Hospital, Skejby, Denmark; Center for Global Health, School of Public Health, Aarhus University, Skejby, Denmark
| | - Scott M Williams
- Departments of Population and Quantitative Health Sciences, and Genetics and Genome Sciences, Cleveland Institute for Computational Biology, Case Western Reserve University, Cleveland, OH 44106, USA.
| | - Giorgio Sirugo
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Division of Translational Medicine and Human Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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31
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Yang D, Chen F, Gu Z, Lü L, Ding G, Peng Z, Shang J, Zhang T. Oxysophocarpine reduces oxidative stress and inflammation in tuberculosis-infected neutrophils and mouse lungs. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2020; 13:1506-1517. [PMID: 32782669 PMCID: PMC7414503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
Tuberculosis (TB) is a chronic inflammatory infectious disease caused by Mycobacterium tuberculosis (Mtb), which induces irreversible pulmonary damage. Oxysophocarpine (OSC) is a natural alkaloid that exhibits multiple pharmacological activities, including anti-inflammation; however, the protective effects of OSC against TB and the mechanisms involved are unknown. Here, we established murine and cellular models of TB with C3HeB/FeJ mice and neutrophils infected with H37Rv to investigate the biological functions of OSC in TB. We found that OSC reduced the mortality, inhibited the pulmonary H37Rv growth, and alleviated the lung pathology injury in the Mtb-infected mice. OSC also repressed neutrophil recruitment to the lesions of the Mtb-infected mice as evidenced by a decrease in the number and percentage of neutrophils in the lungs. OSC hampered the production of proinflammatory cytokines and chemokines, including tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), IL-6, macrophage inflammatory protein-2 (MIP-2), granulocyte colony stimulating factor (G-CSF), and keratinocyte chemoattractant (KC) in the lungs of Mtb-infected mice. The results of the in vitro experiments showed that OSC repressed the adhesion and F-actin polymerization of the Mtb-infected neutrophils by inhibiting the toll-like receptor 2/myeloid differentiation primary response gene 88/Src/extracellular signal-regulated kinase 1/2 signaling. Moreover, OSC abolished the Mtb-induced expression and release of TNF-α, IL-1β, IL-6, MIP-2, G-CSF, and KC in neutrophils. Overall, these findings indicate that OSC can treat TB partly by lessening the neutrophilic recruitment and inflammation.
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Affiliation(s)
- Dongqiang Yang
- Department of Infectious Diseases, Henan Provincial Peoples’ HospitalZhengzhou 450003, Henan, China
| | - Fang Chen
- Department of Pathophysiology, Henan University of Traditional Chinese MedicineZhengzhou 450008, Henan, China
| | - Zhen Gu
- Department of Anatomy, Nanjing Medical UniversityNanjing 210029, Jiangsu, China
| | - Lanhai Lü
- Department of Pharmacology and Toxicology, University of Louisville Health Sciences CenterLouisville 40292, Kentucky, United States
| | - Gangqiang Ding
- Department of Infectious Diseases, Henan Provincial Peoples’ HospitalZhengzhou 450003, Henan, China
| | - Zhen Peng
- Department of Infectious Diseases, Henan Provincial Peoples’ HospitalZhengzhou 450003, Henan, China
| | - Jia Shang
- Department of Infectious Diseases, Henan Provincial Peoples’ HospitalZhengzhou 450003, Henan, China
| | - Tingting Zhang
- Department of Pathophysiology, Henan University of Traditional Chinese MedicineZhengzhou 450008, Henan, China
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Schick J, Schäfer J, Alexander C, Dichtl S, Murray PJ, Christensen D, Sorg U, Pfeffer K, Schleicher U, Lang R. Cutting Edge: TNF Is Essential for Mycobacteria-Induced MINCLE Expression, Macrophage Activation, and Th17 Adjuvanticity. THE JOURNAL OF IMMUNOLOGY 2020; 205:323-328. [PMID: 32540999 DOI: 10.4049/jimmunol.2000420] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 05/19/2020] [Indexed: 02/04/2023]
Abstract
TNF blockade is a successful treatment for human autoimmune disorders like rheumatoid arthritis and inflammatory bowel disease yet increases susceptibility to tuberculosis and other infections. The C-type lectin receptors (CLR) MINCLE, MCL, and DECTIN-2 are expressed on myeloid cells and sense mycobacterial cell wall glycolipids. In this study, we show that TNF is sufficient to upregulate MINCLE, MCL, and DECTIN-2 in macrophages. TNF signaling through TNFR1 p55 was required for upregulation of these CLR and for cytokine secretion in macrophages stimulated with the MINCLE ligand trehalose-6,6-dibehenate or infected with Mycobacterium bovis bacillus Calmette-Guérin. The Th17 response to immunization with the MINCLE-dependent adjuvant trehalose-6,6-dibehenate was specifically abrogated in TNF-deficient mice and strongly attenuated by TNF blockade with etanercept. Together, interference with production or signaling of TNF antagonized the expression of DECTIN-2 family CLR, thwarting vaccine responses and possibly increasing infection risk.
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Affiliation(s)
- Judith Schick
- Institut für Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Johanna Schäfer
- Institut für Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Christian Alexander
- Zelluläre Mikrobiologie, Forschungszentrum Borstel, Leibniz Lungenzentrum, 23845 Borstel, Germany
| | - Stefanie Dichtl
- Max Planck Institute of Biochemistry, 82152 Martinsried, Germany
| | - Peter J Murray
- Max Planck Institute of Biochemistry, 82152 Martinsried, Germany
| | - Dennis Christensen
- Adjuvant Research, Department of Infectious Disease Immunology, Statens Serum Institute, 2300 Copenhagen, Denmark; and
| | - Ursula Sorg
- Institut für Medizinische Mikrobiologie und Krankenhaushygiene, Heinrich Heine Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - Klaus Pfeffer
- Institut für Medizinische Mikrobiologie und Krankenhaushygiene, Heinrich Heine Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - Ulrike Schleicher
- Institut für Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Roland Lang
- Institut für Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, 91054 Erlangen, Germany;
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Scott NR, Swanson RV, Al-Hammadi N, Domingo-Gonzalez R, Rangel-Moreno J, Kriel BA, Bucsan AN, Das S, Ahmed M, Mehra S, Treerat P, Cruz-Lagunas A, Jimenez-Alvarez L, Muñoz-Torrico M, Bobadilla-Lozoya K, Vogl T, Walzl G, du Plessis N, Kaushal D, Scriba TJ, Zúñiga J, Khader SA. S100A8/A9 regulates CD11b expression and neutrophil recruitment during chronic tuberculosis. J Clin Invest 2020; 130:3098-3112. [PMID: 32134742 PMCID: PMC7259997 DOI: 10.1172/jci130546] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 02/20/2020] [Indexed: 01/01/2023] Open
Abstract
Neutrophil accumulation is associated with lung pathology during active tuberculosis (ATB). However, the molecular mechanism or mechanisms by which neutrophils accumulate in the lung and contribute to TB immunopathology are not fully delineated. Using the well-established mouse model of TB, our new data provide evidence that the alarmin S100A8/A9 mediates neutrophil accumulation during progression to chronic TB. Depletion of neutrophils or S100A8/A9 deficiency resulted in improved Mycobacterium tuberculosis (Mtb) control during chronic but not acute TB. Mechanistically, we demonstrate that, following Mtb infection, S100A8/A9 expression is required for upregulation of the integrin molecule CD11b specifically on neutrophils, mediating their accumulation during chronic TB disease. These findings are further substantiated by increased expression of S100A8 and S100A9 mRNA in whole blood in human TB progressors when compared with nonprogressors and rapidly decreased S100A8/A9 protein levels in the serum upon TB treatment. Furthermore, we demonstrate that S100A8/A9 serum levels along with chemokines are useful in distinguishing between ATB and asymptomatic Mtb-infected latent individuals. Thus, our results support targeting S100A8/A9 pathways as host-directed therapy for TB.
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Affiliation(s)
| | | | - Noor Al-Hammadi
- Division of Biostatistics, Washington University in St. Louis, St. Louis, Missouri, USA
| | | | - Javier Rangel-Moreno
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, University of Rochester Medical Center, Rochester, New York, USA
| | - Belinda A. Kriel
- Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, South African Medical Research Council (SAMRC) Centre for Tuberculosis Research, DST-NRF Centre of Excellence for Biomedical TB Research, Stellenbosch University, Stellenbosch, South Africa
| | - Allison N. Bucsan
- Division of Bacteriology and
- Division of Parasitology, Tulane National Primate Research Center, Covington, Louisiana, USA
| | | | | | - Smriti Mehra
- Division of Bacteriology and
- Division of Parasitology, Tulane National Primate Research Center, Covington, Louisiana, USA
| | | | - Alfredo Cruz-Lagunas
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas, Mexico City, Mexico
| | - Luis Jimenez-Alvarez
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas, Mexico City, Mexico
| | - Marcela Muñoz-Torrico
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas, Mexico City, Mexico
| | - Karen Bobadilla-Lozoya
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas, Mexico City, Mexico
| | - Thomas Vogl
- Institute of Immunology and
- Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany
| | - Gerhard Walzl
- Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, South African Medical Research Council (SAMRC) Centre for Tuberculosis Research, DST-NRF Centre of Excellence for Biomedical TB Research, Stellenbosch University, Stellenbosch, South Africa
| | - Nelita du Plessis
- Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, South African Medical Research Council (SAMRC) Centre for Tuberculosis Research, DST-NRF Centre of Excellence for Biomedical TB Research, Stellenbosch University, Stellenbosch, South Africa
| | - Deepak Kaushal
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, Texas, USA
| | - Thomas J. Scriba
- South African Tuberculosis Vaccine Initiative and
- Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Joaquín Zúñiga
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas, Mexico City, Mexico
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Mexico City, Mexico
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Lewis Marffy AL, McCarthy AJ. Leukocyte Immunoglobulin-Like Receptors (LILRs) on Human Neutrophils: Modulators of Infection and Immunity. Front Immunol 2020; 11:857. [PMID: 32477348 PMCID: PMC7237751 DOI: 10.3389/fimmu.2020.00857] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 04/15/2020] [Indexed: 12/30/2022] Open
Abstract
Neutrophils have a crucial role in defense against microbes. Immune receptors allow neutrophils to sense their environment, with many receptors functioning to recognize signs of infection and to promote antimicrobial effector functions. However, the neutrophil response must be tightly regulated to prevent excessive inflammation and tissue damage, and regulation is achieved by expression of inhibitory receptors that can raise activation thresholds. The leukocyte immunoglobulin-like receptor (LILR) family contain activating and inhibitory members that can up- or down-regulate immune cell activity. New ligands and functions for LILR continue to emerge. Understanding the role of LILR in neutrophil biology is of general interest as they can activate and suppress antimicrobial responses of neutrophils and because several human pathogens exploit these receptors for immune evasion. This review focuses on the role of LILR in neutrophil biology. We focus on the current knowledge of LILR expression on neutrophils, the known functions of LILR on neutrophils, and how these receptors may contribute to shaping neutrophil responses during infection.
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Affiliation(s)
- Alexander L Lewis Marffy
- MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London, United Kingdom
| | - Alex J McCarthy
- MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London, United Kingdom
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35
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Bacterial glycans and their interactions with lectins in the innate immune system. Biochem Soc Trans 2020; 47:1569-1579. [PMID: 31724699 DOI: 10.1042/bst20170410] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/21/2019] [Accepted: 10/22/2019] [Indexed: 02/07/2023]
Abstract
Bacterial surfaces are rich in glycoconjugates that are mainly present in their outer layers and are of great importance for their interaction with the host innate immune system. The innate immune system is the first barrier against infection and recognizes pathogens via conserved pattern recognition receptors (PRRs). Lectins expressed by innate immune cells represent an important class of PRRs characterized by their ability to recognize carbohydrates. Among lectins in innate immunity, there are three major classes including the galectins, siglecs, and C-type lectin receptors. These lectins may contribute to initial recognition of bacterial glycans, thus providing an early defence mechanism against bacterial infections, but they may also be exploited by bacteria to escape immune responses. In this review, we will first exemplify bacterial glycosylation systems; we will then describe modes of recognition of bacterial glycans by lectins in innate immunity and, finally, we will briefly highlight how bacteria have found ways to exploit these interactions to evade immune recognition.
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Drouin M, Saenz J, Chiffoleau E. C-Type Lectin-Like Receptors: Head or Tail in Cell Death Immunity. Front Immunol 2020; 11:251. [PMID: 32133013 PMCID: PMC7040094 DOI: 10.3389/fimmu.2020.00251] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 01/30/2020] [Indexed: 12/12/2022] Open
Abstract
C-type lectin-like receptors (CLRs) represent a family of transmembrane pattern recognition receptors, expressed primarily by myeloid cells. They recognize not only pathogen moieties for host defense, but also modified self-antigens such as damage-associated molecular patterns released from dead cells. Upon ligation, CLR signaling leads to the production of inflammatory mediators to shape amplitude, duration and outcome of the immune response. Thus, following excessive injury, dysregulation of these receptors leads to the development of inflammatory diseases. Herein, we will focus on four CLRs of the "Dectin family," shown to decode the immunogenicity of cell death. CLEC9A on dendritic cells links F-actin exposed by dying cells to favor cross-presentation of dead-cell associated antigens to CD8+ T cells. Nevertheless, CLEC9A exerts also feedback mechanisms to temper neutrophil recruitment and prevent additional tissue damage. MINCLE expressed by macrophages binds nuclear SAP130 released by necrotic cells to potentiate pro-inflammatory responses. However, the consequent inflammation can exacerbate pathogenesis of inflammatory diseases. Moreover, in a tumor microenvironment, MINCLE induces macrophage-induced immune suppression and cancer progression. Similarly, triggering of LOX-1 by oxidized LDL, amplifies pro-inflammatory response but promotes tumor immune escape and metastasis. Finally, CLEC12A that recognizes monosodium urate crystals formed during cell death, inhibits activating signals to prevent detrimental inflammation. Interestingly, CLEC12A also sustains type-I IFN response to finely tune immune responses in case of viral-induced collateral damage. Therefore, CLRs acting in concert as sensors of injury, could be used in a targeted way to treat numerous diseases such as allergies, obesity, tumors, and autoimmunity.
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Affiliation(s)
- Marion Drouin
- Université de Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, Nantes, France.,OSE Immunotherapeutics, Nantes, France
| | - Javier Saenz
- Université de Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, Nantes, France
| | - Elise Chiffoleau
- Université de Nantes, Inserm, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, Nantes, France
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Abstract
The respiratory tract is tasked with responding to a constant and vast influx of foreign agents. It acts as an important first line of defense in the innate immune system and as such plays a crucial role in preventing the entry of invading pathogens. While physical barriers like the mucociliary escalator exert their effects through the clearance of these pathogens, diverse and dynamic cellular mechanisms exist for the activation of the innate immune response through the recognition of pathogen-associated molecular patterns (PAMPs). These PAMPs are recognized by pattern recognition receptors (PRRs) that are expressed on a number of myeloid cells such as dendritic cells, macrophages, and neutrophils found in the respiratory tract. C-type lectin receptors (CLRs) are PRRs that play a pivotal role in the innate immune response and its regulation to a variety of respiratory pathogens such as viruses, bacteria, and fungi. This chapter will describe the function of both activating and inhibiting myeloid CLRs in the recognition of a number of important respiratory pathogens as well as the signaling events initiated by these receptors.
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Miyake Y, Yamasaki S. Immune Recognition of Pathogen-Derived Glycolipids Through Mincle. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1204:31-56. [DOI: 10.1007/978-981-15-1580-4_2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Garcia-Vilanova A, Chan J, Torrelles JB. Underestimated Manipulative Roles of Mycobacterium tuberculosis Cell Envelope Glycolipids During Infection. Front Immunol 2019; 10:2909. [PMID: 31921168 PMCID: PMC6930167 DOI: 10.3389/fimmu.2019.02909] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 11/27/2019] [Indexed: 12/11/2022] Open
Abstract
The Mycobacterium tuberculosis cell envelope has been evolving over time to make the bacterium transmissible and adaptable to the human host. In this context, the M. tuberculosis cell envelope contains a peripheral barrier full of lipids, some of them unique, which confer M. tuberculosis with a unique shield against the different host environments that the bacterium will encounter at the different stages of infection. This lipid barrier is mainly composed of glycolipids that can be characterized by three different subsets: trehalose-containing, mannose-containing, and 6-deoxy-pyranose-containing glycolipids. In this review, we explore the roles of these cell envelope glycolipids in M. tuberculosis virulence and pathogenesis, drug resistance, and further, how these glycolipids may dictate the M. tuberculosis cell envelope evolution from ancient to modern strains. Finally, we address how these M. tuberculosis cell envelope glycolipids are impacted by the host lung alveolar environment, their role in vaccination and masking host immunity, and subsequently the impact of these glycolipids in shaping how M. tuberculosis interacts with host cells, manipulating their immune response to favor the establishment of an infection.
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Affiliation(s)
- Andreu Garcia-Vilanova
- Population Health Program, TB Group, Texas Biomedical Research Institute, San Antonio, TX, United States
| | - John Chan
- Department of Medicine (Infectious Diseases), Albert Einstein College of Medicine & Montefiore Medical Center, Bronx, NY, United States.,Department of Microbiology and Immunology, Albert Einstein College of Medicine & Montefiore Medical Center, Bronx, NY, United States
| | - Jordi B Torrelles
- Population Health Program, TB Group, Texas Biomedical Research Institute, San Antonio, TX, United States
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40
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Niu L, Liu X, Ma Z, Yin Y, Sun L, Yang L, Zheng Y. Fungal keratitis: Pathogenesis, diagnosis and prevention. Microb Pathog 2019; 138:103802. [PMID: 31626916 DOI: 10.1016/j.micpath.2019.103802] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 10/12/2019] [Accepted: 10/12/2019] [Indexed: 02/08/2023]
Abstract
As a kind of serious, potentially sight-threatening corneal infections with poor prognosis, fungal keratitis can bring a heavy economic burden to patients and seriously affect the quality of life, especially those in developing countries where fungal keratitis is more prevalent. Typical clinical features include immune rings, satellite lesions, pseudopods, hypha moss, hypopyon and endothelial plaques. The ideal therapeutic effects could not be achieved by current treatments for many reasons. Therefore, under the current status, understanding the pathogenesis, early diagnosis and prevention strategies might be of great importance. Here, in this review, we discuss the recent progresses that may advance our understanding of pathogenesis, early diagnosis and prevention of fungal keratitis.
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Affiliation(s)
- Lingzhi Niu
- Eye Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - Xin Liu
- Eye Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - Zhiming Ma
- Department of Gastrointestinal Nutrition and Hernia Surgery, The Second Hospital of Jilin University, Changchun 130041, China
| | - Yuan Yin
- Eye Center, The Second Hospital of Jilin University, Changchun 130041, China
| | - Lixia Sun
- Department of Ophthalmology, Yanbian University Affiliated Hospital, Yanbian University, Yanji, 133000, China
| | - Longfei Yang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China.
| | - Yajuan Zheng
- Eye Center, The Second Hospital of Jilin University, Changchun 130041, China.
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41
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Lu X, Nagata M, Yamasaki S. Mincle: 20 years of a versatile sensor of insults. Int Immunol 2019; 30:233-239. [PMID: 29726997 DOI: 10.1093/intimm/dxy028] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 04/28/2018] [Indexed: 12/11/2022] Open
Abstract
Macrophage-inducible C-type lectin, better known as Mincle, is a member of the C-type lectin receptor family and is encoded by Clec4e. Mincle was an orphan receptor for a long time after having been discovered as a lipopolysaccharide-induced protein, yet later an adjuvant glycolipid in mycobacteria-trehalose dimycolate-was identified as a ligand. Ligands for Mincle were also found existing in bacteria, fungi and even mammals. When confronted with foreign elements, Mincle can recognize characteristic pathogen-associated molecular patterns, mostly glycolipids, from Mycobacterium tuberculosis and other pathogens, and thus induce immune responses against infection. To maintain self-homeostasis, Mincle can recognize lipid-based damage-associated molecular patterns, thereby monitoring the internal environment. The mechanism by which Mincle functions in the immune system is also becoming more clear along with the identification of its ligands. Being expressed widely on antigen-presenting cells, Mincle activation leads to the production of cytokines and chemokines, neutrophil infiltration and other inflammatory responses. Besides, Mincle can induce acquired immunity such as antigen-specific T-cell responses and antibody production as an adjuvant receptor. In this review, we will retrospectively sketch the discovery and study of Mincle, and outline some current work on this receptor.
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Affiliation(s)
- Xiuyuan Lu
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Yamadaoka, Suita, Osaka, Japan.,Division of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Maidashi, Higashi-ku, Fukuoka, Japan
| | - Masahiro Nagata
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Yamadaoka, Suita, Osaka, Japan
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Yamadaoka, Suita, Osaka, Japan.,Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Yamadaoka, Suita, Osaka, Japan.,Division of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Maidashi, Higashi-ku, Fukuoka, Japan.,Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Inohana, Chuo-ku, Chiba, Japan
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Kabuye D, Chu Y, Lao W, Jin G, Kang H. Association between CLEC4E gene polymorphism of mincle and pulmonary tuberculosis infection in a northern Chinese population. Gene 2019; 710:24-29. [PMID: 31075410 DOI: 10.1016/j.gene.2019.05.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 04/24/2019] [Accepted: 05/06/2019] [Indexed: 01/16/2023]
Abstract
BACKGROUND Pulmonary tuberculosis caused by an intracellular pathogen, Mycobacterium tuberculosis continues to exist as a hazardous disease to human life globally. Genetic polymorphisms regulate resistance and susceptibility to tuberculosis. The C-type lectin receptor of family 4 member E (CLEC4E) confers protection against tuberculosis in laboratory animals but its function in influencing exposure or resistance to pulmonary tuberculosis (PTB) in humans remains obscure. AIM We conducted this research to analyze the effects or concomitance of CLEC4E gene variations with susceptibility to pulmonary tuberculosis in a northern Chinese population. METHOD In this study, 202 participants with pulmonary tuberculosis and 214 controls without PTB were enrolled. Two single nucleotide polymorphisms (SNPs) for CLEC4E on chromosome 12 were selected with a minor allele frequency of >0.05. All the SNPs were genotyped using high resolution melting analysis-PCR. RESULTS We estimated and compared two SNPs, rs10841845 and rs10841847. From our study findings, CLEC4E rs10841845 conferred protection against the development of pulmonary TB with a P value of <0.05 and odds ratio of <1 for all models of genetic inheritance. CLEC4E rs10841847 genotypes in co-dominant, Recessive, Dominant models and alleles had a significant statistical difference between patients and controls associated with resistance against the development of PTB (P<0.05 and OR<1). CONCLUSION Our findings suggest that variations at rs10841845 and rs10841847 of CLEC4E genes are associated with increased individual protection against PTB.
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Affiliation(s)
- Deo Kabuye
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Yang Chu
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Wenting Lao
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Guojiang Jin
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Hui Kang
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China.
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43
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Lim R, Lappas M. Expression and function of macrophage-inducible C-type lectin (Mincle) in inflammation driven parturition in fetal membranes and myometrium. Clin Exp Immunol 2019; 197:95-110. [PMID: 30793298 DOI: 10.1111/cei.13281] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2019] [Indexed: 12/31/2022] Open
Abstract
The pivotal role of inflammatory processes in human parturition is well known, but not completely understood. We have performed a study to examine the role of macrophage-inducible C-type lectin (Mincle) in inflammation-associated parturition. Using human samples, we show that spontaneous labour is associated with up-regulated Mincle expression in the myometrium and fetal membranes. Mincle expression was also increased in fetal membranes and myometrium in the presence of pro-labour mediators, the proinflammatory cytokines interleukin (IL)-1B and tumour necrosis factor (TNF), and Toll-like receptor (TLR) ligands fsl-1, poly(I:C), lipopolysaccharide (LPS) and flagellin. These clinical studies are supported by mouse studies, where an inflammatory challenge in a mouse model of preterm birth increased Mincle expression in the uterus. Importantly, elimination of Mincle decreased the effectiveness of proinflammatory cytokines and TLR ligands to induce the expression of pro-labour mediators; namely, proinflammatory cytokines and chemokines, contraction-associated proteins and prostaglandins, and extracellular matrix remodelling enzymes, matrix metalloproteinases. The data presented in this study suggest that Mincle is required when inflammatory activation precipitates parturition.
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Affiliation(s)
- R Lim
- Mercy Perinatal Research Centre, Mercy Hospital for Women, Heidelberg, Victoria, Australia
| | - M Lappas
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of Melbourne, Victoria, Australia
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Essential roles of C-type lectin Mincle in induction of neuropathic pain in mice. Sci Rep 2019; 9:872. [PMID: 30696945 PMCID: PMC6351622 DOI: 10.1038/s41598-018-37318-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 12/05/2018] [Indexed: 11/09/2022] Open
Abstract
Increasing evidence indicates that pattern recognition receptors (PRRs) are involved in neuropathic pain after peripheral nerve injury (PNI). While a significant number of studies support an association between neuropathic pain and the innate immune response mediated through Toll-like receptors, a family of PRRs, the roles of other types of PRRs are largely unknown. In this study, we have focused on the macrophage-inducible C-type lectin (Mincle), a PRR allocated to the C-type lectin receptor family. Here, we show that Mincle is involved in neuropathic pain after PNI. Mincle-deficient mice showed impaired PNI-induced mechanical allodynia. After PNI, expression of Mincle mRNA was rapidly increased in the injured spinal nerve. Most Mincle-expressing cells were identified as infiltrating leucocytes, although the migration of leucocytes was also observed in Mincle-deficient mice. Furthermore, Mincle-deficiency affected the induction of genes, which are reported to contribute to neuropathic pain after PNI in the dorsal root ganglia and spinal dorsal horn. These results suggest that Mincle is involved in triggering sequential processes that lead to the pathogenesis of neuropathic pain.
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45
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Lipoteichoic acid anchor triggers Mincle to drive protective immunity against invasive group A Streptococcus infection. Proc Natl Acad Sci U S A 2018; 115:E10662-E10671. [PMID: 30352847 DOI: 10.1073/pnas.1809100115] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Group A Streptococcus (GAS) is a Gram-positive bacterial pathogen that causes a range of diseases, including fatal invasive infections. However, the mechanisms by which the innate immune system recognizes GAS are not well understood. We herein report that the C-type lectin receptor macrophage inducible C-type lectin (Mincle) recognizes GAS and initiates antibacterial immunity. Gene expression analysis of myeloid cells upon GAS stimulation revealed the contribution of the caspase recruitment domain-containing protein 9 (CARD9) pathway to the antibacterial responses. Among receptors signaling through CARD9, Mincle induced the production of inflammatory cytokines, inducible nitric oxide synthase, and reactive oxygen species upon recognition of the anchor of lipoteichoic acid, monoglucosyldiacylglycerol (MGDG), produced by GAS. Upon GAS infection, Mincle-deficient mice exhibited impaired production of proinflammatory cytokines, severe bacteremia, and rapid lethality. GAS also possesses another Mincle ligand, diglucosyldiacylglycerol; however, this glycolipid interfered with MGDG-induced activation. These results indicate that Mincle plays a central role in protective immunity against acute GAS infection.
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Chaurasiya SK. Tuberculosis: Smart manipulation of a lethal host. Microbiol Immunol 2018; 62:361-379. [PMID: 29687912 DOI: 10.1111/1348-0421.12593] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/21/2018] [Accepted: 04/16/2018] [Indexed: 11/28/2022]
Abstract
Tuberculosis (TB) caused by Mycobacterium tuberculosis remains a global threat to human health. Development of drug resistance and co-infection with HIV has increased the morbidity and mortality caused by TB. Macrophages serve as primary defense against microbial infections, including TB. Upon recognition and uptake of mycobacteria, macrophages initiate a series of events designed to lead to generation of effective immune responses and clearance of infection. However, pathogenic mycobacteria utilize multiple mechanisms for manipulating macrophage responses to protect itself from being killed and to survive within these cells that are designed to kill them. The outcomes of mycobacterial infection are determined by several host- and pathogen-related factors. Significant advancements in understanding mycobacterial pathogenesis have been made in recent years. In this review, some of the important factors/mechanisms regulating mycobacterial survival inside macrophages are discussed.
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Affiliation(s)
- Shivendra K Chaurasiya
- Host-pathogen Interaction and Signal Transduction Laboratory, Department of Microbiology, School of Biological Sciences, Dr. Hari Singh Gour University, Sagar, MP-470003, India
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Matsumoto M, Araki K, Nishimura S, Kuriyama H, Nakanishi T, Shiozaki K, Takeuchi Y, Yamamoto A. Adjuvant effect in aquaculture fish of cell-wall glycolipids isolated from acid-fast bacteria. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2018; 85:142-149. [PMID: 29665356 DOI: 10.1016/j.dci.2018.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/13/2018] [Accepted: 04/13/2018] [Indexed: 06/08/2023]
Abstract
Mycobacteriosis and nocardiosis in cultured fish caused by infections with acid-fast bacteria, are responsible for large economic losses globally. In this study, we suggest a novel adjuvant using glycolipids that activates host immune systems. The immune response to glycolipids stimulation was investigated using ginbuna crucian carp. Ginbuna vaccinated with FKC (formalin-killed cells) + glycolipids isolated from Mycobacterium sp., upregulated inflammatory- and Th1-related cytokines, and a DTH (delayed-type hypersensitivity) response was confirmed only in ginbuna vaccinated with FKC + glycolipids. These observations suggest that glycolipids activated host innate and cell-mediated immunity. Subsequently, we evaluated the adjuvant effect of glycolipids against amberjack nocardiosis. In a challenge test, a higher survival rate was observed in amberjack vaccinated with FKC + glycolipids emulsified with conventional oil adjuvant than in fish vaccinated with FKC + oil adjuvant without glycolipids. Therefore, glycolipids potentially could be used as a practical, economical and safe adjuvant for aquaculture fish.
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Affiliation(s)
- Megumi Matsumoto
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-8580, Japan
| | - Kyosuke Araki
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-8580, Japan; Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan
| | - Sayaka Nishimura
- Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan
| | - Hideki Kuriyama
- Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan
| | - Teruyuki Nakanishi
- Department of Veterinary Medicine, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, 252-0880, Japan
| | - Kazuhiro Shiozaki
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-8580, Japan; Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan
| | - Yutaka Takeuchi
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-8580, Japan; Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan
| | - Atsushi Yamamoto
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-8580, Japan; Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan.
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Leisching GR. Susceptibility to Tuberculosis Is Associated With PI3K-Dependent Increased Mobilization of Neutrophils. Front Immunol 2018; 9:1669. [PMID: 30065729 PMCID: PMC6056613 DOI: 10.3389/fimmu.2018.01669] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/04/2018] [Indexed: 12/19/2022] Open
Abstract
Neutrophilia is a condition commonly observed in patients with late-stage tuberculosis, but evidence suggests that increased neutrophil influx begins early after infection in susceptible hosts and functions to promote a nutrient-replete niche that promotes Mycobacterium tuberculosis survival and persistence. As the disease progresses, an increase in the number of neutrophil-like cells is observed, all of which exhibit characteristics associated with (i) phenotypic and biochemical features of immaturity, (ii) the inability to activate T-cells, (iii) hyper-inflammation, and (iv) prolonged survival. Transcriptomics reveal a common set of molecules associated with the PI3–Kinase pathway that are dysregulated in patients with active tuberculosis. Closer inspection of their individual biological roles reveal their ability to modulate the IL-17/G–CSF axis, induce leukocyte receptor activation, and regulate apoptosis and motility. This review draws attention to neutrophil hyper-reactivity as a driving force for both the establishment and progression of tuberculosis disease in susceptible individuals.
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Affiliation(s)
- Gina R Leisching
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Gein SV, Kochina OA, Kuyukina MS, Ivshina IB. Effects of Glycolipid Rhodococcus Biosurfactant on Innate and Adaptive Immunity Parameters In Vivo. Bull Exp Biol Med 2018; 165:368-372. [PMID: 30003418 DOI: 10.1007/s10517-018-4172-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Indexed: 10/28/2022]
Abstract
The glycolipid biosurfactant complex from actinobacterium Rhodococcus ruber IEGM 231 inhibits the innate and adaptive immunity parameters after intraperitoneal and intramuscular injection. Marked suppression of antibody production, bactericidal potential, and production of proinflammatory cytokines by peritoneal macrophages, detected in vivo, do not agree with the previously detected immunostimulatory activity of biosurfactants towards the immunocompetent cell cultures; this fact indicates an important role of the cell environment in the formation of immune response under the effect of bacterial glycolipids.
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Affiliation(s)
- S V Gein
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia. .,Perm State National Research University, Perm, Russia.
| | - O A Kochina
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia
| | - M S Kuyukina
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia.,Perm State National Research University, Perm, Russia
| | - I B Ivshina
- Institute of Ecology and Genetics of Microorganisms, Ural Division of the Russian Academy of Sciences, Perm, Russia.,Perm State National Research University, Perm, Russia
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Del Fresno C, Iborra S, Saz-Leal P, Martínez-López M, Sancho D. Flexible Signaling of Myeloid C-Type Lectin Receptors in Immunity and Inflammation. Front Immunol 2018; 9:804. [PMID: 29755458 PMCID: PMC5932189 DOI: 10.3389/fimmu.2018.00804] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 04/03/2018] [Indexed: 12/19/2022] Open
Abstract
Myeloid C-type lectin receptors (CLRs) are important sensors of self and non-self that work in concert with other pattern recognition receptors (PRRs). CLRs have been previously classified based on their signaling motifs as activating or inhibitory receptors. However, specific features of the ligand binding process may result in distinct signaling through a single motif, resulting in the triggering of non-canonical pathways. In addition, CLR ligands are frequently exposed in complex structures that simultaneously bind different CLRs and other PRRs, which lead to integration of heterologous signaling among diverse receptors. Herein, we will review how sensing by myeloid CLRs and crosstalk with heterologous receptors is modulated by many factors affecting their signaling and resulting in differential outcomes for immunity and inflammation. Finding common features among those flexible responses initiated by diverse CLR-ligand partners will help to harness CLR function in immunity and inflammation.
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Affiliation(s)
- Carlos Del Fresno
- Immunobiology Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Salvador Iborra
- Immunobiology Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain.,Department of Immunology, School of Medicine, Universidad Complutense de Madrid, 12 de Octubre Health Research Institute (imas12), Madrid, Spain
| | - Paula Saz-Leal
- Immunobiology Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - María Martínez-López
- Immunobiology Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - David Sancho
- Immunobiology Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
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