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Clarke M, Falcione S, Boghozian R, Todoran R, Zhang Y, C Real MG, StPierre A, Joy T, Jickling GC. Viral Infection and Ischemic Stroke: Emerging Trends and Mechanistic Insights. J Am Heart Assoc 2024; 13:e035892. [PMID: 39258541 DOI: 10.1161/jaha.124.035892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 07/22/2024] [Indexed: 09/12/2024]
Abstract
Population studies have suggested that viral infections may be contributing to risk of ischemic stroke, although the mechanisms for this are unclear. In this review, we examine the epidemiological evidence supporting the involvement of viral diseases, including influenza, COVID-19, chronic herpesvirus infections, and hepatitis C in current trends of stroke incidence. To support these associations, we highlight the virus-host interactions that are critical in the context of stroke, including direct effects of acute and persistent viral infections on vascular function, inflammation, and thrombosis. Additionally, we evaluate the systemic changes that occur during viral infection that can predispose individuals to ischemic stroke, including alterations in blood pressure regulation, coagulation, and lipid metabolism. Our review emphasizes the need to further elucidate precise mechanisms involved in viral infections and stroke risk. Future research will inform the development of targeted interventions for stroke prevention in the context of viral diseases.
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Affiliation(s)
- Michael Clarke
- Faculty of Medicine and Dentistry Department of Medical Microbiology and Immunology University of Alberta Edmonton AB Canada
| | - Sarina Falcione
- Faculty of Medicine and Dentistry Department of Medicine Division of Neurology University of Alberta Edmonton AB Canada
| | - Roobina Boghozian
- Faculty of Medicine and Dentistry Department of Medicine Division of Neurology University of Alberta Edmonton AB Canada
| | - Raluca Todoran
- Faculty of Medicine and Dentistry Department of Medicine Division of Neurology University of Alberta Edmonton AB Canada
| | - Yiran Zhang
- Faculty of Medicine and Dentistry Department of Medicine Division of Neurology University of Alberta Edmonton AB Canada
| | - Maria Guadalupe C Real
- Faculty of Medicine and Dentistry Department of Medicine Division of Neurology University of Alberta Edmonton AB Canada
| | - Alexis StPierre
- Faculty of Medicine and Dentistry Department of Medicine Division of Neurology University of Alberta Edmonton AB Canada
| | - Twinkle Joy
- Faculty of Medicine and Dentistry Department of Medicine Division of Neurology University of Alberta Edmonton AB Canada
| | - Glen C Jickling
- Faculty of Medicine and Dentistry Department of Medical Microbiology and Immunology University of Alberta Edmonton AB Canada
- Faculty of Medicine and Dentistry Department of Medicine Division of Neurology University of Alberta Edmonton AB Canada
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2
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Su L, Chen Y, Fu M, Wang H, Tong Y, Lin Z, Chen H, Lin H, Chen Y, Zhu B, Ma S, Xiao Y, Huang J, Zhao Z, Li F, Ye R, Shi H, Wang Z, Zeng J, Wen Z, Luo M, Xia H, Zhang R. CD14 facilitates perinatal human cytomegalovirus infection in biliary epithelial cells via CD55. JHEP Rep 2024; 6:101018. [PMID: 38601478 PMCID: PMC11002872 DOI: 10.1016/j.jhepr.2024.101018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 11/28/2023] [Accepted: 01/08/2024] [Indexed: 04/12/2024] Open
Abstract
Background & Aims A high human cytomegalovirus (HCMV) infection rate accompanied by an increased level of bile duct damage is observed in the perinatal period. The possible mechanism was investigated. Methods A total of 1,120 HCMV-positive and 9,297 HCMV-negative children were recruited, and depending on age, their liver biochemistry profile was compared. Fetal and infant biliary epithelial cells (F-BECs and I-BECs, respectively) were infected with HCMV, and the differences in cells were revealed by proteomic analysis. Protein-protein interactions were examined by coimmunoprecipitation and mass spectrometry analyses. A murine cytomegalovirus (MCMV) infection model was established to assess treatment effects. Results Perinatal HCMV infection significantly increased the level of bile duct damage. Neonatal BALB/c mice inoculated with MCMV showed obvious inflammation in the portal area with an abnormal bile duct structure. Proteomics analysis showed higher CD14 expression in F-BECs than in I-BECs. CD14 siRNA administration hindered HCMV infection, and CD14-knockout mice showed lower MCMV-induced bile duct damage. HCMV infection upregulated CD55 and poly ADP-ribose polymerase-1 (PARP-1) expression in F-BECs. Coimmunoprecipitation and mass spectrometry analyses revealed formation of the CD14-CD55 complex. siRNA-mediated inhibition of CD55 expression reduced sCD14-promoted HCMV replication in F-BECs. In MCMV-infected mice, anti-mouse CD14 antibody and PARP-1 inhibitor treatment diminished cell death, ameliorated bile duct damage, and reduced mortality. Conclusions CD14 facilitates perinatal HCMV infection in BECs via CD55, and PARP-1-mediated cell death was detected in perinatal cytomegalovirus-infected BECs. These results provide new insight into the treatment of perinatal HCMV infection with bile duct damage. Impact and implications Perinatal human cytomegalovirus (HCMV) infection is associated with bile duct damage, but the underlying mechanism is still unknown. We discovered that CD14 expression is increased in biliary epithelial cells during perinatal HCMV infection and facilitates viral entry through CD55. We also detected PARP-1-mediated cell death in perinatal HCMV-infected biliary epithelial cells. We showed that blocking CD14 or inhibiting PARP-1 reduced bile duct damage and mortality in a mouse model of murine cytomegalovirus infection. Our findings provide a new insight into therapeutic strategies for perinatal HCMV infection.
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Affiliation(s)
- Liang Su
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Yan Chen
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
- Faculty of Medicine, Macau University of Science and Technology, Macau SAR, China
| | - Ming Fu
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
- Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Hezhen Wang
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yanlu Tong
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Zefeng Lin
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Hongjiao Chen
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Huiting Lin
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yi Chen
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Bing Zhu
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Sige Ma
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yiyi Xiao
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Junyu Huang
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ziyang Zhao
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Fenjie Li
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Rongchen Ye
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Hongguang Shi
- Department of Pediatric Surgery, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhe Wang
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jixiao Zeng
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Zhe Wen
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Minhua Luo
- Faculty of Medicine, Macau University of Science and Technology, Macau SAR, China
| | - Huimin Xia
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ruizhong Zhang
- Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
- Department of Pediatric Surgery, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Kutle I, Dittrich A, Wirth D. Mouse Models for Human Herpesviruses. Pathogens 2023; 12:953. [PMID: 37513800 PMCID: PMC10384569 DOI: 10.3390/pathogens12070953] [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: 05/31/2023] [Revised: 07/13/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023] Open
Abstract
More than one hundred herpesviruses have been isolated from different species so far, with nine infecting humans. Infections with herpesviruses are characterized by life-long latency and represent a significant challenge for human health. To investigate the consequences of infections and identify novel treatment options, in vivo models are of particular relevance. The mouse has emerged as an economical small animal model to investigate herpesvirus infections. However, except for herpes simplex viruses (HSV-1, HSV-2), human herpesviruses cannot infect mice. Three natural herpesviruses have been identified in mice: mouse-derived cytomegalovirus (MCMV), mouse herpesvirus 68 (MHV-68), and mouse roseolovirus (MRV). These orthologues are broadly used to investigate herpesvirus infections within the natural host. In the last few decades, immunocompromised mouse models have been developed, allowing the functional engraftment of various human cells and tissues. These xenograft mice represent valuable model systems to investigate human-restricted viruses, making them particularly relevant for herpesvirus research. In this review, we describe the various mouse models used to study human herpesviruses, thereby highlighting their potential and limitations. Emphasis is laid on xenograft mouse models, covering the development and refinement of immune-compromised mice and their application in herpesvirus research.
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Affiliation(s)
- Ivana Kutle
- Research Group Model Systems for Infection, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
| | - Anne Dittrich
- Research Group Model Systems for Infection, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
- InSCREENeX GmbH, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Dagmar Wirth
- Research Group Model Systems for Infection, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
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4
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Brunetti JE, Kitsera M, Muñoz-Fontela C, Rodríguez E. Use of Hu-PBL Mice to Study Pathogenesis of Human-Restricted Viruses. Viruses 2023; 15:228. [PMID: 36680271 PMCID: PMC9866769 DOI: 10.3390/v15010228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/07/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Different humanized mouse models have been developed to study human diseases such as autoimmune illnesses, cancer and viral infections. These models are based on the use of immunodeficient mouse strains that are transplanted with human tissues or human immune cells. Among the latter, mice transplanted with hematopoietic stem cells have been widely used to study human infectious diseases. However, mouse models built upon the transplantation of donor-specific mature immune cells are still under development, especially in the field of viral infections. These models can retain the unique immune memory of the donor, making them suitable for the study of correlates of protection upon natural infection or vaccination. Here, we will review some of these models and how they have been applied to virology research. Moreover, the future applications and the potential of these models to design therapies against human viral infections are discussed.
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Affiliation(s)
| | - Maksym Kitsera
- Bernhard-Nocht Institute for Tropical Medicine, 20359 Hamburg, Germany
| | - César Muñoz-Fontela
- Bernhard-Nocht Institute for Tropical Medicine, 20359 Hamburg, Germany
- German Center for Infection Research, Partner Site Hamburg-Borstel-Lübeck, 38124 Braunschweig, Germany
| | - Estefanía Rodríguez
- Bernhard-Nocht Institute for Tropical Medicine, 20359 Hamburg, Germany
- German Center for Infection Research, Partner Site Hamburg-Borstel-Lübeck, 38124 Braunschweig, Germany
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Görner S, Heim C, Weigmann B, von Silva-Tarouca B, Kuckhahn A, Ramsperger-Gleixner M, Zimmermann R, Weyand M, Ensminger SM. Direct Impact of Human Platelets on the Development of Transplant Arteriosclerosis. Transplantation 2022; 106:1180-1192. [PMID: 34468430 DOI: 10.1097/tp.0000000000003935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Platelets play an important role in the pathogenesis of inflammatory and proliferative vascular changes. The aim of this study was to investigate whether human platelets are able to induce transplant arteriosclerosis in a humanized C57/Bl6-Rag2-/-γc-/- mouse xenograft model. METHODS Nonactivated and in vitro-activated human platelets were analyzed and phenotyped for surface markers by flow cytometry. Side branches of human mammary arteries were implanted into the infrarenal aorta of recipients, followed by daily application of human platelets and histological analyzed on day 30 after transplantation. RESULTS Human platelets collected by apheresis had low levels of platelet activation markers. However, after in vitro activation, expression was markedly increased. Sixty minutes after injection in recipient mice, nonactivated human platelets become significantly activated. Increased adhesion of platelets to the vascular endothelium was detected by in vivo fluorescence microscopy. After intravenous injection of nonactivated or activated platelets, human xenografts showed pronounced intimal proliferation. Immunohistological analysis showed that the group treated with activated human platelets exhibited significantly increased intragraft protein expression of intracellular adhesion molecule-1 and platelet-derived growth factor receptor beta and smooth muscle cell migration into the neointima. CONCLUSIONS These data demonstrate that an isolated daily application of both in vivo- and in vitro-activated human platelets results in the development of transplant arteriosclerosis in a humanized mouse transplantation model.
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Affiliation(s)
- Susann Görner
- Department of Cardiac Surgery, Friedrich-Alexander University, Erlangen-Nürnberg, Germany
| | - Christian Heim
- Department of Cardiac Surgery, Friedrich-Alexander University, Erlangen-Nürnberg, Germany
| | - Benno Weigmann
- Department of Medicine 1, Friedrich-Alexander University, Erlangen-Nürnberg, Germany
| | | | - Annika Kuckhahn
- Department of Cardiac Surgery, Friedrich-Alexander University, Erlangen-Nürnberg, Germany
| | | | - Robert Zimmermann
- Department of Transfusion Medicine, Friedrich-Alexander University, Erlangen-Nürnberg, Germany
| | - Michael Weyand
- Department of Cardiac Surgery, Friedrich-Alexander University, Erlangen-Nürnberg, Germany
| | - Stephan M Ensminger
- Department of Cardiac Surgery, Friedrich-Alexander University, Erlangen-Nürnberg, Germany
- Present address: Department of Cardiac and Thoracic Vascular Surgery, University Heart Center Lübeck, University Hospital Schleswig Holstein, Lübeck, Germany
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Cytomegalovirus Donor Seropositivity Negatively Affects Survival After Heart Transplantation. Transplantation 2021; 106:1243-1252. [PMID: 34560698 DOI: 10.1097/tp.0000000000003961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Prior studies have shown that cytomegalovirus(CMV) infection is a risk factor for the development of cardiac allograft vasculopathy(CAV) and is associated with reduced long-term survival after heart transplantation. The aim of this ISHLT Transplant Registry study was to compare post-transplant survival in different CMV donor:recipient serologic combinations. METHODS We performed a retrospective cohort study, using the ISHLT Thoracic Transplant Registry, on 15,885 adult primary heart transplant recipients with known CMV serologic status between 7/2004 and 6/2014. Post-transplant survival and risk of developing CAV were compared across 4 groups: CMV-seronegative recipients(R-) receiving CMV-positive grafts(D+), intermediate-risk patients(D+R+ and D-R+), and low-risk patients(D-R-). RESULTS Baseline characteristics (donor/recipient age, BMI, recipient serum creatinine, blood group, donor cause of death, recipient diagnosis and ischemic time) were mostly balanced between the groups. Kaplan Meier survival analyses over a follow up of 10 years revealed significantly worse survival for both D+ groups as compared to the CMV low risk group (D+R+:56.61% (95%CI 53.94,59.41) vs. D-R-:63.09% (59.74,66.64) p<.01 and D+R-:57.69% (56.03,59.39) vs. D-R-; p<.001), whereas recipient seropositivity alone was not associated with reduced survival (D-R+ vs. D-R- p=.178). The risk of developing CAV after HTx was not significantly increased in D+ as compared to D- groups. CONCLUSION In a large contemporary cohort, CMV status at the time of heart transplantation was not associated with CAV development. However, there was a significant association between donor CMV seropositivity and reduced short- and long-term survival after heart transplantation. Approaches to mitigate the impact of CMV on post-transplant survival are needed.Supplemental Visual Abstract; http://links.lww.com/TP/C292.
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Fisher MA, Lloyd ML. A Review of Murine Cytomegalovirus as a Model for Human Cytomegalovirus Disease-Do Mice Lie? Int J Mol Sci 2020; 22:ijms22010214. [PMID: 33379272 PMCID: PMC7795257 DOI: 10.3390/ijms22010214] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/10/2020] [Accepted: 12/17/2020] [Indexed: 12/12/2022] Open
Abstract
Since murine cytomegalovirus (MCMV) was first described in 1954, it has been used to model human cytomegalovirus (HCMV) diseases. MCMV is a natural pathogen of mice that is present in wild mice populations and has been associated with diseases such as myocarditis. The species-specific nature of HCMV restricts most research to cell culture-based studies or to the investigation of non-invasive clinical samples, which may not be ideal for the study of disseminated disease. Initial MCMV research used a salivary gland-propagated virus administered via different routes of inoculation into a variety of mouse strains. This revealed that the genetic background of the laboratory mice affected the severity of disease and altered the extent of subsequent pathology. The advent of genetically modified mice and viruses has allowed new aspects of disease to be modeled and the opportunistic nature of HCMV infection to be confirmed. This review describes the different ways that MCMV has been used to model HCMV diseases and explores the continuing difficulty faced by researchers attempting to model HCMV congenital cytomegalovirus disease using the mouse model.
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Affiliation(s)
- Michelle A. Fisher
- Division of Infection and Immunity, School of Biomedical Sciences, The University of Western Australia, Nedlands 6009, Australia;
| | - Megan L. Lloyd
- Division of Infection and Immunity, School of Biomedical Sciences, The University of Western Australia, Nedlands 6009, Australia;
- Marshall Centre for Infectious Diseases Research and Training, Division of Infection and Immunity, School of Biomedical Sciences, The University of Western Australia, Nedlands 6009, Australia
- Correspondence:
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Kuckhahn A, Ramsperger-Gleixner M, Ensminger S, Weyand M, Heim C. Transplantatvaskulopathie nach Herztransplantation. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2019. [DOI: 10.1007/s00398-019-0309-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Fujiwara S. Humanized mice: A brief overview on their diverse applications in biomedical research. J Cell Physiol 2017; 233:2889-2901. [PMID: 28543438 DOI: 10.1002/jcp.26022] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 05/19/2017] [Indexed: 02/06/2023]
Abstract
Model animals naturally differ from humans in various respects and results from the former are not directly translatable to the latter. One approach to address this issue is humanized mice that are defined as mice engrafted with functional human cells or tissues. In humanized mice, we can investigate the development and function of human cells or tissues (including their products encoded by human genes) in the in vivo context of a small animal. As such, humanized mouse models have played important roles that cannot be substituted by other animal models in various areas of biomedical research. Although there are obvious limitations in humanized mice and we may need some caution in interpreting the results obtained from them, it is reasonably expected that they will be utilized in increasingly diverse areas of biomedical research, as the technology for preparing humanized mice are rapidly improved. In this review, I will describe the methodology for generating humanized mice and overview their recent applications in various disciplines including immunology, infectious diseases, drug metabolism, and neuroscience.
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Affiliation(s)
- Shigeyoshi Fujiwara
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Setagaya-ku, Tokyo, Japan.,Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Itabashi-ku, Tokyo, Japan
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Affiliation(s)
- Felicia Goodrum
- Department of Cellular and Molecular Medicine, The University of Arizona, Tucson, Arizona, USA.,Department of Immunobiology, The University of Arizona, Tucson, Arizona, USA.,BIO5 Institute, The University of Arizona, Tucson, Arizona USA
| | - Farah Bughio
- Department of Cellular and Molecular Medicine, The University of Arizona, Tucson, Arizona, USA
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Crawford LB, Streblow DN, Hakki M, Nelson JA, Caposio P. Humanized mouse models of human cytomegalovirus infection. Curr Opin Virol 2015; 13:86-92. [PMID: 26118890 DOI: 10.1016/j.coviro.2015.06.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 06/10/2015] [Indexed: 02/07/2023]
Abstract
The generation of humanized mouse models in which immune deficient mice are engrafted with human tissues allows for the direct in vivo investigation of human-restricted viruses. These humanized mouse models have been developed and improved over the past 30 years. It is now possible to achieve high levels of human cell engraftment producing human myeloid and lymphoid lineage cells. Humanized mouse models have been increasingly utilized in the study of human cytomegalovirus (HCMV), a human-specific beta-herpesvirus that infects myeloprogenitor cells and establishes a life-long latency in the infected host. This review focuses on the strengths and limitations of the current humanized mouse models used to study HCMV replication, pathogenesis and treatment.
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Affiliation(s)
| | - Daniel N Streblow
- VGTI, OHSU West Campus, 505 NW 185th Avenue, Beaverton, OR 97006, USA
| | - Morgan Hakki
- Division of Infectious Diseases, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA
| | - Jay A Nelson
- VGTI, OHSU West Campus, 505 NW 185th Avenue, Beaverton, OR 97006, USA
| | - Patrizia Caposio
- VGTI, OHSU West Campus, 505 NW 185th Avenue, Beaverton, OR 97006, USA.
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Brehm MA, Wiles MV, Greiner DL, Shultz LD. Generation of improved humanized mouse models for human infectious diseases. J Immunol Methods 2014; 410:3-17. [PMID: 24607601 PMCID: PMC4155027 DOI: 10.1016/j.jim.2014.02.011] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 02/18/2014] [Indexed: 12/26/2022]
Abstract
The study of human-specific infectious agents has been hindered by the lack of optimal small animal models. More recently development of novel strains of immunodeficient mice has begun to provide the opportunity to utilize small animal models for the study of many human-specific infectious agents. The introduction of a targeted mutation in the IL2 receptor common gamma chain gene (IL2rg(null)) in mice already deficient in T and B cells led to a breakthrough in the ability to engraft hematopoietic stem cells, as well as functional human lymphoid cells and tissues, effectively creating human immune systems in immunodeficient mice. These humanized mice are becoming increasingly important as pre-clinical models for the study of human immunodeficiency virus-1 (HIV-1) and other human-specific infectious agents. However, there remain a number of opportunities to further improve humanized mouse models for the study of human-specific infectious agents. This is being done by the implementation of innovative technologies, which collectively will accelerate the development of new models of genetically modified mice, including; i) modifications of the host to reduce innate immunity, which impedes human cell engraftment; ii) genetic modification to provide human-specific growth factors and cytokines required for optimal human cell growth and function; iii) and new cell and tissue engraftment protocols. The development of "next generation" humanized mouse models continues to provide exciting opportunities for the establishment of robust small animal models to study the pathogenesis of human-specific infectious agents, as well as for testing the efficacy of therapeutic agents and experimental vaccines.
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Affiliation(s)
- Michael A Brehm
- The University of Massachusetts Medical School, 368 Plantation Street, Worcester, MA 01605, United States.
| | - Michael V Wiles
- The Jackson Laboratory, 600 Main Street, Bar Harbor, ME 04609, United States.
| | - Dale L Greiner
- The University of Massachusetts Medical School, 368 Plantation Street, Worcester, MA 01605, United States.
| | - Leonard D Shultz
- The Jackson Laboratory, 600 Main Street, Bar Harbor, ME 04609, United States.
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Berges BK, Tanner A. Modelling of human herpesvirus infections in humanized mice. J Gen Virol 2014; 95:2106-2117. [PMID: 25053560 DOI: 10.1099/vir.0.067793-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The human herpesviruses (HHVs) are remarkably successful human pathogens, with some members of the family successfully establishing infection in the vast majority of humans worldwide. Although many HHV infections result in asymptomatic infection or mild disease, there are rare cases of severe disease and death found with nearly every HHV. Many of the pathogenic mechanisms of these viruses are poorly understood, and in many cases, effective antiviral drugs are lacking. Only a single vaccine exists for the HHVs and researchers have been unable to develop treatments to cure the persistent infections associated with HHVs. A major hindrance to HHV research has been the lack of suitable animal models, with the notable exception of the herpes simplex viruses. One promising area for HHV research is the use of humanized mouse models, in which human cells or tissues are transplanted into immunodeficient mice. Current humanized mouse models mostly transplant human haematopoietic stem cells (HSCs), resulting in the production of a variety of human immune cells. Although all HHVs are thought to infect human immune cells, the beta- and gammaherpesviruses extensively infect and establish latency in these cells. Thus, mice humanized with HSCs hold great promise to study these herpesviruses. In this review, we provide a historical perspective on the use of both older and newer humanized mouse models to study HHV infections. The focus is on current developments in using humanized mice to study mechanisms of HHV-induced pathogenesis, human immune responses to HHVs and effectiveness of antiviral drugs.
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Affiliation(s)
- Bradford K Berges
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, USA
| | - Anne Tanner
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, USA
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Valbuena G, Halliday H, Borisevich V, Goez Y, Rockx B. A human lung xenograft mouse model of Nipah virus infection. PLoS Pathog 2014; 10:e1004063. [PMID: 24699832 PMCID: PMC3974875 DOI: 10.1371/journal.ppat.1004063] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 02/28/2014] [Indexed: 01/22/2023] Open
Abstract
Nipah virus (NiV) is a member of the genus Henipavirus (family Paramyxoviridae) that causes severe and often lethal respiratory illness and encephalitis in humans with high mortality rates (up to 92%). NiV can cause Acute Lung Injury (ALI) in humans, and human-to-human transmission has been observed in recent outbreaks of NiV. While the exact route of transmission to humans is not known, we have previously shown that NiV can efficiently infect human respiratory epithelial cells. The molecular mechanisms of NiV-associated ALI in the human respiratory tract are unknown. Thus, there is an urgent need for models of henipavirus infection of the human respiratory tract to study the pathogenesis and understand the host responses. Here, we describe a novel human lung xenograft model in mice to study the pathogenesis of NiV. Following transplantation, human fetal lung xenografts rapidly graft and develop mature structures of adult lungs including cartilage, vascular vessels, ciliated pseudostratified columnar epithelium, and primitive “air” spaces filled with mucus and lined by cuboidal to flat epithelium. Following infection, NiV grows to high titers (107 TCID50/gram lung tissue) as early as 3 days post infection (pi). NiV targets both the endothelium as well as respiratory epithelium in the human lung tissues, and results in syncytia formation. NiV infection in the human lung results in the production of several cytokines and chemokines including IL-6, IP-10, eotaxin, G-CSF and GM-CSF on days 5 and 7 pi. In conclusion, this study demonstrates that NiV can replicate to high titers in a novel in vivo model of the human respiratory tract, resulting in a robust inflammatory response, which is known to be associated with ALI. This model will facilitate progress in the fundamental understanding of henipavirus pathogenesis and virus-host interactions; it will also provide biologically relevant models for other respiratory viruses. Nipah virus (NiV) is a highly pathogenic zoonotic virus that causes fatal disease in humans and a variety of other mammalian hosts including pigs. Given the lack of effective therapeutics and vaccines, this virus is considered a public health and agricultural concern, and listed as category C priority pathogen for biodefense research by the National Institute of Allergy and Infectious Diseases. Both animal-to-human and human-to-human transmission has been observed. Studies on the molecular mechanisms of NiV-mediated pathogenesis have been hampered by the lack of biologically relevant in vivo models for studying the initial host responses to NiV infection in the human lung. We show here a new small animal model in which we transplant human lung tissue for studying the pathogenesis of NiV. We showed that NiV can replicate to high levels in the human lung. NiV causes extensive damage to the lung tissue and induces important regulators of the inflammatory response. This study is the first to use a human lung transplant for studying infectious diseases, a powerful model for studying the pathogenesis of NiV infection, and will open up new possibilities for studying virus-host interactions.
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Affiliation(s)
- Gustavo Valbuena
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
- Institute of Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Hailey Halliday
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Viktoriya Borisevich
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
- Institute of Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Yenny Goez
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Barry Rockx
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
- Institute of Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, United States of America
- Department Microbiology & Immunology, University of Texas Medical Branch, Galveston, Texas, United States of America
- * E-mail:
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Abele-Ohl S, Heim C, Eckl S, Weyand M, Stamminger T, Ensminger SM. Procurement regimens to reduce ischemia reperfusion injury of vascular grafts. ACTA ACUST UNITED AC 2012; 49:80-7. [PMID: 22922247 DOI: 10.1159/000341551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Accepted: 07/02/2012] [Indexed: 11/19/2022]
Abstract
BACKGROUND Ischemia reperfusion injury is an important nonimmunological factor contributing to the development of chronic rejection. The aim of this study was to compare different cell culture media in terms of vascular lesion formation after ischemia reperfusion injury. METHODS BALB/c aortic grafts were incubated in different cell media (endothelial cell growth, ECG, RPMI-1640 and Waymouth/Ham's F12) for various time spans (5, 6.5 and 8.5 h) at 37°C and implanted into syngeneic BALB/c recipients. On day 30 after implantation, histology, immunofluorescence and morphometric measurements were performed. RESULTS A total of 36 transplants were performed for this study with an overall survival rate of 72.2%. The most frequent complication was thrombosis of the aortic graft (n = 9) and there was one late death due to other courses. All the recipients with vascular grafts incubated in the ECG medium survived and showed no signs of intimal proliferation independent of the time of ischemia. Aortic grafts incubated in the RPMI medium resulted in a reduced recipient survival rate of 66.7% and grafts incubated in the Waymouth medium showed only a 50% survival by day 30. Analysis of the vascular morphology revealed moderate amounts of intimal proliferation within two aortic grafts in this group. CD31 staining revealed superior endothelial cell integrity after incubation with the ECG medium. CONCLUSIONS Data from the current study suggest that under optimized conditions vascular grafts can be safely kept in tissue culture up to 8.5 h without significant ischemic damage. Differences in vascular integrity and animal survival depended mostly on the respective tissue culture medium used for the storage of the vessel.
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Affiliation(s)
- S Abele-Ohl
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
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Lam V, Bigley T, Terhune SS, Wakatsuki T. A method for quantifying mechanical properties of tissue following viral infection. PLoS One 2012; 7:e42197. [PMID: 22870300 PMCID: PMC3411685 DOI: 10.1371/journal.pone.0042197] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Accepted: 07/05/2012] [Indexed: 01/01/2023] Open
Abstract
Viral infection and replication involves the reorganization of the actin network within the host cell. Actin plays a central role in the mechanical properties of cells. We have demonstrated a method to quantify changes in mechanical properties of fabricated model three-dimensional (3D) connective tissue following viral infection. Using this method, we have characterized the impact of infection by the human herpesvirus, cytomegalovirus (HCMV). HCMV is a member of the herpesvirus family and infects a variety of cell types including fibroblasts. In the body, fibroblasts are necessary for maintaining connective tissue and function by creating mechanical force. Using this 3D connective tissue model, we observed that infection disrupted the cell’s ability to generate force and reduced the cumulative contractile force of the tissue. The addition of HCMV viral particles in the absence of both viral gene expression and DNA replication was sufficient to disrupt tissue function. We observed that alterations of the mechanical properties are, in part, due to a disruption of the underlying complex actin microfilament network established by the embedded fibroblasts. Finally, we were able to prevent HCMV-mediated disruption of tissue function by the addition of human immune globulin against HCMV. This study demonstrates a method to quantify the impact of viral infection on mechanical properties which are not evident using conventional cell culture systems.
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Affiliation(s)
- Vy Lam
- Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- Department of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Tarin Bigley
- Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- Department of Microbiology and Molecular Genetics, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Scott S. Terhune
- Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- Department of Microbiology and Molecular Genetics, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- * E-mail:
| | - Tetsuro Wakatsuki
- Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- Department of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- InvivoSciences LLC, Madison, Wisconsin, United States of America
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