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Velazquez-Salinas L, Medina GN, Valdez F, Zarate S, Collinson S, Zhu JJ, Rodriguez LL. Exploring the Molecular Basis of Vesicular Stomatitis Virus Pathogenesis in Swine: Insights from Expression Profiling of Primary Macrophages Infected with M51R Mutant Virus. Pathogens 2023; 12:896. [PMID: 37513744 PMCID: PMC10384765 DOI: 10.3390/pathogens12070896] [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: 05/04/2023] [Revised: 06/20/2023] [Accepted: 06/25/2023] [Indexed: 07/30/2023] Open
Abstract
Vesicular stomatitis virus (VSV) is an emergent virus affecting livestock in the US. Previously, using a recombinant VSV carrying the M51R mutation in the matrix protein (rNJ0612NME6-M51R), we evaluated the pathogenesis of this virus in pigs. Our results indicated that rNJ0612NME6-M51R represented an attenuated phenotype in in-vivo and in ex-vivo in pig macrophages, resembling certain clinical features observed in field VSV isolates. In order to gain more insight into the molecular basis leading to the attenuation of rNJ0612NME6-M51R in pigs, we conducted a microarray analysis to assess the gene expression profiles of primary porcine macrophages infected with rNJ0612NME6-M51R compared to its parental virus (rNJ0612NME6). Our results showed an overall higher gene expression in macrophages infected with rNJ0612NME6-M51R. Specifically, we observed that the pathways related with immune cytokine signaling and interferon (IFN)-related responses (including activation, signaling, induction, and antiviral mechanisms) were the ones comprising most of the relevant genes identified during this study. Collectively, the results presented herein highlight the relevance of type I interferon during the pathogenesis of VSV in pigs. The information generated from this study may represent a framework for future studies intended to understand the molecular bases of the pathogenesis of field strains in livestock.
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Affiliation(s)
- Lauro Velazquez-Salinas
- Plum Island Animal Disease Center (PIADC), Agricultural Research Service, USDA, Greenport, NY 11944, USA
- National Bio and Agro-Defense Facility (NBAF), ARS, USDA, Manhattan, KS 66502, USA
| | - Gisselle N Medina
- Plum Island Animal Disease Center (PIADC), Agricultural Research Service, USDA, Greenport, NY 11944, USA
- National Bio and Agro-Defense Facility (NBAF), ARS, USDA, Manhattan, KS 66502, USA
| | - Federico Valdez
- Plum Island Animal Disease Center (PIADC), Agricultural Research Service, USDA, Greenport, NY 11944, USA
- Oak Ridge Institute for Science and Education (ORISE)-PIADC, Oak Ridge, TN 37831, USA
| | - Selene Zarate
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de Mexico, Ciudad de Mexico 04510, Mexico
| | - Shannon Collinson
- Plum Island Animal Disease Center (PIADC), Agricultural Research Service, USDA, Greenport, NY 11944, USA
- Oak Ridge Institute for Science and Education (ORISE)-PIADC, Oak Ridge, TN 37831, USA
| | - James J Zhu
- Plum Island Animal Disease Center (PIADC), Agricultural Research Service, USDA, Greenport, NY 11944, USA
- National Bio and Agro-Defense Facility (NBAF), ARS, USDA, Manhattan, KS 66502, USA
| | - Luis L Rodriguez
- Plum Island Animal Disease Center (PIADC), Agricultural Research Service, USDA, Greenport, NY 11944, USA
- National Bio and Agro-Defense Facility (NBAF), ARS, USDA, Manhattan, KS 66502, USA
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2
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Herzog S, Fragkou PC, Arneth BM, Mkhlof S, Skevaki C. Myeloid CD169/Siglec1: An immunoregulatory biomarker in viral disease. Front Med (Lausanne) 2022; 9:979373. [PMID: 36213653 PMCID: PMC9540380 DOI: 10.3389/fmed.2022.979373] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
CD169, also known as Siglec1 or Sialoadhesin (Sn), is a surface adhesion molecule on human myeloid cells. Being part of the Siglec family, it acts as a receptor for sialylated molecular structures, which are found among various pathogenic and non-pathogenic ligands. Recent data suggest that CD169 may represent a promising new biomarker in acute respiratory and non-respiratory viral infections, such as SARS-CoV-2, Respiratory syncytial virus (RSV) and Human immunodeficiency virus (HIV). Therein lies a great potential to sufficiently differentiate viral from bacterial infection, which has been an incessant challenge in the clinical management of infectious disease. CD169 equips myeloid cells with functions, reaching far beyond pathogen elimination. In fact, CD169 seems to crosslink innate and adaptive immunity by antigen presentation and consecutive pathogen elimination, embodying a substantial pillar of immunoregulation. Yet, our knowledge about the kinetics, mechanisms of induction, signaling pathways and its precise role in host-pathogen interaction remains largely obscure. In this review, we describe the role of CD169 as a potentially novel diagnostic biomarker for respiratory viral infection by evaluating its strengths and weaknesses and considering host factors that are involved in pathogenesis of virus infection. Finally, this brief review aims to point out shortcomings of available evidence, thus, guiding future work revolving the topic.
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Affiliation(s)
- Silva Herzog
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Justus Liebig University Giessen, Giessen, Germany
- The European Society of Clinical Microbiology and Infection (ESCMID) Study Group for Respiratory Viruses (ESGREV), Basel, Switzerland
| | - Paraskevi C. Fragkou
- The European Society of Clinical Microbiology and Infection (ESCMID) Study Group for Respiratory Viruses (ESGREV), Basel, Switzerland
- First Department of Critical Care Medicine and Pulmonary Services, School of Medicine, Evangelismos Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Borros M. Arneth
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Justus Liebig University Giessen, Giessen, Germany
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps-University Marburg, Marburg, Germany
| | - Samr Mkhlof
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Justus Liebig University Giessen, Giessen, Germany
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps-University Marburg, Marburg, Germany
| | - Chrysanthi Skevaki
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Justus Liebig University Giessen, Giessen, Germany
- The European Society of Clinical Microbiology and Infection (ESCMID) Study Group for Respiratory Viruses (ESGREV), Basel, Switzerland
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps-University Marburg, Marburg, Germany
- Universities of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Marburg, Germany
- *Correspondence: Chrysanthi Skevaki,
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3
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Suk FM, Chang CC, Sun PC, Ke WT, Chung CC, Lee KL, Chan TS, Liang YC. MCPIP1 Enhances TNF-α-Mediated Apoptosis through Downregulation of the NF-κB/cFLIP Axis. BIOLOGY 2021; 10:biology10070655. [PMID: 34356509 PMCID: PMC8301320 DOI: 10.3390/biology10070655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/09/2021] [Accepted: 07/09/2021] [Indexed: 11/16/2022]
Abstract
Monocyte chemoattractant protein-1-induced protein 1 (MCPIP1) is rapidly produced under proinflammatory stimuli, thereby feeding back to downregulate excessive inflammation. In this study, we used the stable, inducible expressions of wild-type (WT) MCPIP1 and an MCPIP1-D141N mutant in T-REx-293 cells by means of a tetracycline on (Tet-on) system. We found that WT MCPIP1 but not MCPIP1-D141N mutant expression dramatically increased apoptosis, caspase-3, -7, -8, and -9 activation, and c-Jun N-terminal kinase (JNK) phosphorylation in TNF-α-treated cells. The pan-caspase inhibitor, z-VAD-fmk, and the caspase-1 inhibitor, z-YVAD-fmk, but not the JNK inhibitor, SP600125, significantly reversed apoptosis and caspase activation in TNF-α/MCPIP1-treated cells. Surprisingly, MCPIP1 itself was also cleaved, and the cleavage was suppressed by treatment with the pan-caspase inhibitor and caspase-1 inhibitor. Moreover, MCPIP1 was found to contain a caspase-1/-4 consensus recognition sequence located in residues 234~238. As expected, the WT MCPIP1 but not the MCPIP1-D141N mutant suppressed NF-κB activation, as evidenced by inhibition of IκB kinase (IKK) phosphorylation and IκB degradation using Western blotting, IKK activity using in vitro kinase activity, and NF-κB translocation to nuclei using an immunofluorescence assay. Interestingly, MCPIP1 also significantly inhibited importin α3 and importin α4 expressions, which are major nuclear transporter receptors for NF-κB. Inhibition of NF-κB activation further downregulated expression of the caspase-8 inhibitor, cFLIP. In summary, the results suggest that MCPIP1 could enhance the TNF-α-induced apoptotic pathway through decreasing NF-κB activation and cFLIP expression.
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Affiliation(s)
- Fat-Moon Suk
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; (F.-M.S.); (C.-C.C.); (T.-S.C.)
| | - Chi-Ching Chang
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; (F.-M.S.); (C.-C.C.); (T.-S.C.)
- Division of Rheumatology, Immunology and Allergy, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Pei-Chi Sun
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; (P.-C.S.); (W.-T.K.); (C.-C.C.); (K.-L.L.)
| | - Wei-Ting Ke
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; (P.-C.S.); (W.-T.K.); (C.-C.C.); (K.-L.L.)
| | - Chia-Chen Chung
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; (P.-C.S.); (W.-T.K.); (C.-C.C.); (K.-L.L.)
| | - Kun-Lin Lee
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; (P.-C.S.); (W.-T.K.); (C.-C.C.); (K.-L.L.)
- Ph.D. Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Tze-Sian Chan
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; (F.-M.S.); (C.-C.C.); (T.-S.C.)
| | - Yu-Chih Liang
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; (P.-C.S.); (W.-T.K.); (C.-C.C.); (K.-L.L.)
- Ph.D. Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
- Correspondence:
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4
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Comins-Boo A, Gutiérrez-Larrañaga M, Roa-Bautista A, Guiral Foz S, Renuncio García M, González López E, Irure Ventura J, Fariñas-Álvarez MC, San Segundo D, López Hoyos M. Validation of a Quick Flow Cytometry-Based Assay for Acute Infection Based on CD64 and CD169 Expression. New Tools for Early Diagnosis in COVID-19 Pandemic. Front Med (Lausanne) 2021; 8:655785. [PMID: 33869256 PMCID: PMC8044950 DOI: 10.3389/fmed.2021.655785] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 02/26/2021] [Indexed: 01/25/2023] Open
Abstract
Objectives: Several parameters aid in deciphering between viral and bacterial infections; however, new tools should be investigated in order to reduce the time to results and proceed with an early target-therapy. Validation of a biomarker study, including CD64 and CD169 expression, was conducted. Material and Methods: Patients with active SARS-CoV-2 infection (ACov-2), bacterial infection (ABI), healthy controls, and antiretroviral-controlled chronic HIV infection were assessed. Whole blood was stained and, after lysing no-wash protocol, acquired by flow cytometry. The median fluorescence intensity (MFI) of CD64 and CD169 was measured in granulocytes, monocytes, and lymphocytes. The CD64 MFI ratio granulocytes to lymphocytes (CD64N) and CD169 MFI ratio monocytes to lymphocytes (CD169Mo) were evaluated as biomarkers of acute bacterial and viral infection, respectively. Results: A CD64N ratio higher than 3.3 identified patients with ABI with 83.3 and 85.9% sensitivity and specificity, with an area under the curve (AUC) of 83.5%. In contrast, other analytic or hematological parameters used in the clinic had lower AUC compared with the CD64N ratio. Moreover, a CD169Mo ratio higher than 3.3 was able to identify ACov-2 with 91.7 and 89.8 sensitivity and specificity, with the highest AUC (92.0%). Conclusion: This work confirms the previous data of CD64N and CD169Mo ratios in an independent cohort, including controlled chronic viral HIV infection patients as biomarkers of acute bacterial and viral infections, respectively. Such an approach would benefit from quick pathogen identification for a direct-therapy with a clear application in different Health Care Units, especially during this COVID pandemic.
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Affiliation(s)
- Alejandra Comins-Boo
- Immunology Unit, Marqués de Valdecilla University Hospital, Santander, Spain.,Autoimmunity and Transplantation Research Group, Research Institute "Marqués de Valdecilla" (IDIVAL), Santander, Spain
| | - Maria Gutiérrez-Larrañaga
- Immunology Unit, Marqués de Valdecilla University Hospital, Santander, Spain.,Autoimmunity and Transplantation Research Group, Research Institute "Marqués de Valdecilla" (IDIVAL), Santander, Spain
| | - Adriel Roa-Bautista
- Immunology Unit, Marqués de Valdecilla University Hospital, Santander, Spain.,Autoimmunity and Transplantation Research Group, Research Institute "Marqués de Valdecilla" (IDIVAL), Santander, Spain
| | - Sandra Guiral Foz
- Immunology Unit, Marqués de Valdecilla University Hospital, Santander, Spain.,Autoimmunity and Transplantation Research Group, Research Institute "Marqués de Valdecilla" (IDIVAL), Santander, Spain
| | - Mónica Renuncio García
- Immunology Unit, Marqués de Valdecilla University Hospital, Santander, Spain.,Autoimmunity and Transplantation Research Group, Research Institute "Marqués de Valdecilla" (IDIVAL), Santander, Spain
| | - Elena González López
- Immunology Unit, Marqués de Valdecilla University Hospital, Santander, Spain.,Autoimmunity and Transplantation Research Group, Research Institute "Marqués de Valdecilla" (IDIVAL), Santander, Spain
| | - Juan Irure Ventura
- Immunology Unit, Marqués de Valdecilla University Hospital, Santander, Spain.,Autoimmunity and Transplantation Research Group, Research Institute "Marqués de Valdecilla" (IDIVAL), Santander, Spain
| | - María Carmen Fariñas-Álvarez
- Infectious Diseases Unit, Marqués de Valdecilla University Hospital, Santander, Spain.,Epidemiology and Pathogenic Mechanisms of Infectious Diseases Research Group, Research Institute "Marqués de Valdecilla" (IDIVAL), Santander, Spain
| | - David San Segundo
- Immunology Unit, Marqués de Valdecilla University Hospital, Santander, Spain.,Autoimmunity and Transplantation Research Group, Research Institute "Marqués de Valdecilla" (IDIVAL), Santander, Spain
| | - Marcos López Hoyos
- Immunology Unit, Marqués de Valdecilla University Hospital, Santander, Spain.,Autoimmunity and Transplantation Research Group, Research Institute "Marqués de Valdecilla" (IDIVAL), Santander, Spain
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5
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Liu Y, Xia Y, Qiu CH. Functions of CD169 positive macrophages in human diseases (Review). Biomed Rep 2020; 14:26. [PMID: 33408860 PMCID: PMC7780751 DOI: 10.3892/br.2020.1402] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/26/2020] [Indexed: 12/20/2022] Open
Abstract
CD169+ macrophages are a unique type of macrophage subset that differ from M1 and M2 macrophages. CD169+ macrophages are present in multiple tissues and organs throughout the body and are primarily expressed in secondary lymphoid organs. These cells are primarily divided across three locations in secondary lymphoid organs: The metallophilic marginal zone of the spleen, the subcapsular sinus and the medulla of the lymph nodes. Due to their unique location distribution in vivo and the presence of the CD169 molecule on their surfaces, CD169+ macrophages are reported to serve important roles in several processes, such as phagocytosis, antigen presentation, immune tolerance, viral infection and inflammatory responses. At the same time, it has been reported that CD169+ macrophages may also serve an important role in anti-tumour immunity. The present review focuses on the research progress surrounding the function of CD169+ macrophages in a variety of diseases, such as viral infection, autoimmune diseases and tumours.
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Affiliation(s)
- Yu Liu
- Department of Cell Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Yuan Xia
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Chun-Hong Qiu
- Department of Cell Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
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6
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Li Y, Ryan J, Xu F, Vostal JG. Macrophage Depletion Mitigates Platelet Aggregate Formation in Splenic Marginal Zone and Alleviates LPS-Associated Thrombocytopenia in Rats. Front Med (Lausanne) 2019; 6:300. [PMID: 31921873 PMCID: PMC6927931 DOI: 10.3389/fmed.2019.00300] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 11/29/2019] [Indexed: 11/19/2022] Open
Abstract
Sepsis is often accompanied with thrombocytopenia partly due to platelet sequestration in the lung and liver. The spleen can store up to one-third of circulating platelets and can also significantly affect platelet transfusion outcomes by accumulating platelets. However, in sepsis, it is not clear whether there are platelet changes in the spleen which could contribute to sepsis-associated thrombocytopenia and also influence platelet transfusion outcomes. By using confocal microscopy, we examined endogenous rat platelets and infused human platelets in the spleen of severe combined immune deficient Rag2 KO rats which were injected intraperitoneally with lipopolysaccharide (LPS). LPS-injected Rag2 KO rats developed sepsis as indicated by increased TNFa, IL-6, IL-1b, and IL-10 levels and thrombocytopenia. Large platelet aggregates were observed in the spleen with majority located in the marginal zone and closely associated with CD169+ macrophages. Depletion of macrophages by clodrosome resulted in reduction of LPS-induced cytokine generation and alleviated LPS-induced thrombocytopenia. Macrophage depletion also remarkedly diminished large platelet aggregate formation in the splenic marginal zone but had less effect on those in red pulp. Infusion of human platelets into LPS-injected rats failed to raise platelet counts in the peripheral blood. In LPS-injected rat spleen, human platelets interacted with aggregated rat platelets in the marginal zone. In contrast, human platelets infused into control rats were located outside of splenic marginal zone. This study provides morphological evidence of platelet aggregates in the splenic marginal zone in sepsis which can interact with infused platelets and thus can contribute to platelet infusion refractoriness in sepsis. It indicates that macrophages play an important role in LPS-associated thrombocytopenia. It also suggests that CD169+ macrophages support platelet aggregate formation in the splenic marginal zone.
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Affiliation(s)
- Ying Li
- Laboratory of Cellular Hematology, Division of Blood Components and Devices, Office of Blood Research and Review, Food and Drug Administration, Silver Spring, MD, United States
| | - Johannah Ryan
- Laboratory of Cellular Hematology, Division of Blood Components and Devices, Office of Blood Research and Review, Food and Drug Administration, Silver Spring, MD, United States
| | - Fei Xu
- Laboratory of Cellular Hematology, Division of Blood Components and Devices, Office of Blood Research and Review, Food and Drug Administration, Silver Spring, MD, United States
| | - Jaroslav G Vostal
- Laboratory of Cellular Hematology, Division of Blood Components and Devices, Office of Blood Research and Review, Food and Drug Administration, Silver Spring, MD, United States
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7
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Friedrich SK, Lang PA, Friebus-Kardash J, Duhan V, Bezgovsek J, Lang KS. Mechanisms of lymphatic system-specific viral replication and its potential role in autoimmune disease. Clin Exp Immunol 2019; 195:64-73. [PMID: 30444956 DOI: 10.1111/cei.13241] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/13/2018] [Indexed: 12/15/2022] Open
Abstract
Viral infections can be fatal because of the direct cytopathic effects of the virus or the induction of a strong, uncontrolled inflammatory response. Virus and host intrinsic characteristics strongly modulate the outcome of viral infections. Recently we determined the circumstances under which enhanced replication of virus within the lymphoid tissue is beneficial for the outcome of a disease. This enforced viral replication promotes anti-viral immune activation and, counterintuitively, accelerates virus control. In this review we summarize the mechanisms that contribute to enforced viral replication. Antigen-presenting cells and CD169+ macrophages exhibit enforced viral replication after infection with the model viruses lymphocytic choriomeningitis virus (LCMV) and vesicular stomatitis virus (VSV). Ubiquitin-specific peptidase 18 (Usp18), an endogenous type I interferon blocker in CD169+ macrophages, has been identified as a proviral gene, as are B cell activating factor (BAFF) and carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1). Lymphotoxins (LT) strongly enhance viral replication in the spleen and lymph nodes. All these factors modulate splenic architecture and thereby promote the development of CD169+ macrophages. Tumor necrosis factor alpha (TNF-α) and nuclear factor kappa-light-chain-enhancer of activated B cell signaling (NF-κB) have been found to promote the survival of infected CD169+ macrophages, thereby similarly promoting enforced viral replication. Association of autoimmune disease with infections is evident from (1) autoimmune phenomena described during a chronic virus infection; (2) onset of autoimmune disease simultaneous to viral infections; and (3) experimental evidence. Involvement of virus infection during onset of type I diabetes is strongly evident. Epstein-Bar virus (EBV) infection was discussed to be involved in the pathogenesis of systemic lupus erythematosus. In conclusion, several mechanisms promote viral replication in secondary lymphatic organs. Identifying such factors in humans is a challenge for future studies.
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Affiliation(s)
- S-K Friedrich
- University of Duisburg-Essen, Institute of Immunology, Medical Faculty, Essen, Germany
| | - P A Lang
- Heinrich-Heine-University, Insitute of Molecular Medicine II, Düsseldorf, Germany
| | - J Friebus-Kardash
- University of Duisburg-Essen, Institute of Immunology, Medical Faculty, Essen, Germany
| | - V Duhan
- University of Duisburg-Essen, Institute of Immunology, Medical Faculty, Essen, Germany
| | - J Bezgovsek
- University of Duisburg-Essen, Institute of Immunology, Medical Faculty, Essen, Germany
| | - K S Lang
- University of Duisburg-Essen, Institute of Immunology, Medical Faculty, Essen, Germany
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8
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Tejera D, Mercan D, Sanchez-Caro JM, Hanan M, Greenberg D, Soreq H, Latz E, Golenbock D, Heneka MT. Systemic inflammation impairs microglial Aβ clearance through NLRP3 inflammasome. EMBO J 2019; 38:e101064. [PMID: 31359456 PMCID: PMC6717897 DOI: 10.15252/embj.2018101064] [Citation(s) in RCA: 203] [Impact Index Per Article: 40.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 06/30/2019] [Accepted: 07/03/2019] [Indexed: 01/16/2023] Open
Abstract
Alzheimer's disease is the most prevalent type of dementia and is caused by the deposition of extracellular amyloid‐beta and abnormal tau phosphorylation. Neuroinflammation has emerged as an additional pathological component. Microglia, representing the brain's major innate immune cells, play an important role during Alzheimer's. Once activated, microglia show changes in their morphology, characterized by a retraction of cell processes. Systemic inflammation is known to increase the risk for cognitive decline in human neurogenerative diseases including Alzheimer's. Here, we assess for the first time microglial changes upon a peripheral immune challenge in the context of aging and Alzheimer's in vivo, using 2‐photon laser scanning microscopy. Microglia were monitored at 2 and 10 days post‐challenge by lipopolysaccharide. Microglia exhibited a reduction in the number of branches and the area covered at 2 days, a phenomenon that resolved at 10 days. Systemic inflammation reduced microglial clearance of amyloid‐beta in APP/PS1 mice. NLRP3 inflammasome knockout blocked many of the observed microglial changes upon lipopolysaccharide, including alterations in microglial morphology and amyloid pathology. NLRP3 inhibition may thus represent a novel therapeutic target that may protect the brain from toxic peripheral inflammation during systemic infection.
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Affiliation(s)
- Dario Tejera
- Department of Neurodegenerative Disease and Geriatric Psychiatry, University Hospitals Bonn, Bonn, Germany.,German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Dilek Mercan
- Department of Neurodegenerative Disease and Geriatric Psychiatry, University Hospitals Bonn, Bonn, Germany
| | - Juan M Sanchez-Caro
- Department of Neurodegenerative Disease and Geriatric Psychiatry, University Hospitals Bonn, Bonn, Germany
| | - Mor Hanan
- Department of Biological Chemistry, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - David Greenberg
- Department of Biological Chemistry, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Hermona Soreq
- Department of Biological Chemistry, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Eicke Latz
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, MA, USA.,Institute of Innate Immunity, University Hospitals Bonn, Bonn, Germany
| | - Douglas Golenbock
- Department of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Michael T Heneka
- Department of Neurodegenerative Disease and Geriatric Psychiatry, University Hospitals Bonn, Bonn, Germany.,German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, MA, USA
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9
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Grabowska J, Lopez-Venegas MA, Affandi AJ, den Haan JMM. CD169 + Macrophages Capture and Dendritic Cells Instruct: The Interplay of the Gatekeeper and the General of the Immune System. Front Immunol 2018; 9:2472. [PMID: 30416504 PMCID: PMC6212557 DOI: 10.3389/fimmu.2018.02472] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/05/2018] [Indexed: 12/14/2022] Open
Abstract
Since the seminal discovery of dendritic cells (DCs) by Steinman and Cohn in 1973, there has been an ongoing debate to what extent macrophages and DCs are related and perform different functions. The current view is that macrophages and DCs originate from different lineages and that only DCs have the capacity to initiate adaptive immunity. Nevertheless, as we will discuss in this review, lymphoid tissue resident CD169+ macrophages have been shown to act in concert with DCs to promote or suppress adaptive immune responses for pathogens and self-antigens, respectively. Accordingly, we propose a functional alliance between CD169+ macrophages and DCs in which a division of tasks is established. CD169+ macrophages are responsible for the capture of pathogens and are frequently the first cell type infected and thereby provide a confined source of antigen. Subsequently, cross-presenting DCs interact with these antigen-containing CD169+ macrophages, pick up antigens and activate T cells. The cross-priming of T cells by DCs is enhanced by the localized production of type I interferons (IFN-I) derived from CD169+ macrophages and plasmacytoid DCs (pDCs) that induces DC maturation. The interaction between CD169+ macrophages and DCs appears not only to be essential for immune responses against pathogens, but also plays a role in the induction of self-tolerance and immune responses against cancer. In this review we will discuss the studies that demonstrate the collaboration between CD169+ macrophages and DCs in adaptive immunity.
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Affiliation(s)
- Joanna Grabowska
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Miguel A Lopez-Venegas
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Alsya J Affandi
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Joke M M den Haan
- Department of Molecular Cell Biology and Immunology, Amsterdam University Medical Center, Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
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10
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Velazquez-Salinas L, Pauszek SJ, Stenfeldt C, O'Hearn ES, Pacheco JM, Borca MV, Verdugo-Rodriguez A, Arzt J, Rodriguez LL. Increased Virulence of an Epidemic Strain of Vesicular Stomatitis Virus Is Associated With Interference of the Innate Response in Pigs. Front Microbiol 2018; 9:1891. [PMID: 30158915 PMCID: PMC6104175 DOI: 10.3389/fmicb.2018.01891] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 07/27/2018] [Indexed: 12/13/2022] Open
Abstract
Vesicular stomatitis virus (VSV) causes sporadic outbreaks of vesicular disease in the southwestern United States. The intrinsic characteristics of epidemic strains associated with these outbreaks are poorly understood. In this study, we report the distinctive genomic and biological characteristics of an epidemic (NJ0612NME6) strain of VSV compared with an endemic (NJ0806VCB) strain. Genomic comparisons between the two strains revealed a total of 111 nucleotide differences (23 non-synonymous) with potentially relevant replacements located in the P, G, and L proteins. When tested in experimentally infected pigs, a natural host of VSV, the epidemic strain caused higher fever and an increased number of vesicular lesions compared to pigs infected with the endemic strain. Pigs infected with the epidemic strain showed decreased systemic antiviral activity (type I - IFN), lower antibody levels, higher levels of interleukin 6, and lower levels of tumor necrosis factor during the acute phase of disease compared to pigs infected with the endemic strain. Furthermore, we document the existence of an RNAemia phase in pigs experimentally infected with VSV and explored the cause for the lack of recovery of infectious virus from blood. Finally, the epidemic strain was shown to be more efficient in down-regulating transcription of IRF-7 in primary porcine macrophages. Collectively, the data shows that the epidemic strain of VSV we tested has an enhanced ability to modulate the innate immune response of the vertebrate host. Further studies are needed to examine other epidemic strains and what contributions a phenotype of increased virulence might have on the transmission of VSV during epizootics.
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Affiliation(s)
- Lauro Velazquez-Salinas
- Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, United States Department of Agriculture-Agricultural Research Service, Greenport, NY, United States.,College of Veterinary Medicine and Animal Science, National Autonomous University of Mexico, Mexico City, Mexico.,Plum Island Animal Disease Center Research Participation Program, Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States
| | - Steven J Pauszek
- Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, United States Department of Agriculture-Agricultural Research Service, Greenport, NY, United States
| | - Carolina Stenfeldt
- Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, United States Department of Agriculture-Agricultural Research Service, Greenport, NY, United States.,Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN, United States
| | - Emily S O'Hearn
- Foreign Animal Disease Diagnostic Laboratory, Veterinary Services, Animal and Plant Health Inspection Service, United States Department of Agriculture, Plum Island, NY, United States
| | - Juan M Pacheco
- Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, United States Department of Agriculture-Agricultural Research Service, Greenport, NY, United States
| | - Manuel V Borca
- Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, United States Department of Agriculture-Agricultural Research Service, Greenport, NY, United States
| | - Antonio Verdugo-Rodriguez
- College of Veterinary Medicine and Animal Science, National Autonomous University of Mexico, Mexico City, Mexico
| | - Jonathan Arzt
- Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, United States Department of Agriculture-Agricultural Research Service, Greenport, NY, United States
| | - Luis L Rodriguez
- Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, United States Department of Agriculture-Agricultural Research Service, Greenport, NY, United States
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11
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Asano K, Kikuchi K, Tanaka M. CD169 macrophages regulate immune responses toward particulate materials in the circulating fluid. J Biochem 2018; 164:77-85. [PMID: 29905851 DOI: 10.1093/jb/mvy050] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/15/2018] [Indexed: 12/14/2022] Open
Abstract
Tissue macrophages comprise heterogeneous subsets that differ in localization, phenotype and ontogeny. They acquire tissue-specific phenotype in order to maintain normal tissue physiology. This review summarizes the current knowledge about the functions of CD169-positive macrophage subset residing in the lymphoid organs and intestinal tract. Strategically positioned at the interface between tissue and circulating fluid, CD169+ macrophages in the lymphoid organs capture blood- and lymph-borne particulate materials. Antigen information relayed by CD169+ macrophages to neighbouring immune cells is important for enhancement of antimicrobial and antitumour immunity as well as induction of tolerance. In the intestinal tract, CD169+ macrophages localize distantly from epithelial border. Following mucosal injury, they exacerbate inflammation by producing CCL8 that recruits inflammatory monocytes. As such, a better understanding of CD169+ macrophage phenotypes may enable the design of tissue-specific therapies for both immunological and non-immunological diseases.
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Affiliation(s)
- Kenichi Asano
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Kenta Kikuchi
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Masato Tanaka
- Laboratory of Immune Regulation, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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