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Herron ICT, Laws TR, Nelson M. Marmosets as models of infectious diseases. Front Cell Infect Microbiol 2024; 14:1340017. [PMID: 38465237 PMCID: PMC10921895 DOI: 10.3389/fcimb.2024.1340017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 01/29/2024] [Indexed: 03/12/2024] Open
Abstract
Animal models of infectious disease often serve a crucial purpose in obtaining licensure of therapeutics and medical countermeasures, particularly in situations where human trials are not feasible, i.e., for those diseases that occur infrequently in the human population. The common marmoset (Callithrix jacchus), a Neotropical new-world (platyrrhines) non-human primate, has gained increasing attention as an animal model for a number of diseases given its small size, availability and evolutionary proximity to humans. This review aims to (i) discuss the pros and cons of the common marmoset as an animal model by providing a brief snapshot of how marmosets are currently utilized in biomedical research, (ii) summarize and evaluate relevant aspects of the marmoset immune system to the study of infectious diseases, (iii) provide a historical backdrop, outlining the significance of infectious diseases and the importance of developing reliable animal models to test novel therapeutics, and (iv) provide a summary of infectious diseases for which a marmoset model exists, followed by an in-depth discussion of the marmoset models of two studied bacterial infectious diseases (tularemia and melioidosis) and one viral infectious disease (viral hepatitis C).
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Affiliation(s)
- Ian C. T. Herron
- CBR Division, Defence Science and Technology Laboratory (Dstl), Salisbury, United Kingdom
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2
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Kwon T. Utilizing non-human primate models to combat recent COVID-19/SARS-CoV-2 and viral infectious disease outbreaks. J Med Primatol 2024; 53:e12689. [PMID: 38084001 DOI: 10.1111/jmp.12689] [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: 10/05/2023] [Revised: 11/01/2023] [Accepted: 12/01/2023] [Indexed: 02/13/2024]
Abstract
In recent times, global viral outbreaks and diseases, such as COVID-19 (SARS-CoV-2), Zika (ZIKV), monkeypox (MPOX), Ebola (EBOV), and Marburg (MARV), have been extensively documented. Swiftly deciphering the mechanisms underlying disease pathogenesis and devising vaccines or therapeutic interventions to curtail these outbreaks stand as paramount imperatives. Amidst these endeavors, animal models emerge as pivotal tools. Among these models, non-human primates (NHPs) hold a position of particular importance. Their proximity in evolutionary lineage and physiological resemblances to humans render them a primary model for comprehending human viral infections. This review encapsulates the pivotal role of various NHP species-such as rhesus macaques (Macaca mulatta), cynomolgus macaques (Macaca fascicularis), african green monkeys (Chlorocebus sabaeus/aethiops), pigtailed macaques (Macaca nemestrina/Macaca leonina), baboons (Papio hamadryas/Papio anubis), and common marmosets (Callithrix jacchus)-in investigations pertaining to the abovementioned viral outbreaks. These NHP models play a pivotal role in illuminating key aspects of disease dynamics, facilitating the development of effective countermeasures, and contributing significantly to our overall understanding of viral pathogenesis.
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Affiliation(s)
- Taeho Kwon
- Primate Resources Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup-si, Jeonbuk, Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea National University of Science and Technology (UST), Daejeon, Korea
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3
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Yankowski C, Kurup D, Wirblich C, Schnell MJ. Effects of adjuvants in a rabies-vectored Ebola virus vaccine on protection from surrogate challenge. NPJ Vaccines 2023; 8:10. [PMID: 36754965 PMCID: PMC9906604 DOI: 10.1038/s41541-023-00615-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 01/27/2023] [Indexed: 02/10/2023] Open
Abstract
Ebola virus is the primary contributor to the global threat of filovirus severe hemorrhagic fever, and Ebola virus disease has a case fatality rate of 50-90%. An inactivated, bivalent filovirus/rabies virus vaccine, FILORAB1, consists of recombinant rabies virus virions expressing the Ebola virus glycoprotein. FILORAB1 is immunogenic and protective from Ebola virus challenge in mice and non-human primates, and protection is enhanced when formulated with toll-like receptor 4 agonist Glucopyranosyl lipid adjuvant (GLA) in a squalene oil-in-water emulsion (SE). Through an adjuvant comparison in mice, we demonstrate that GLA-SE improves FILORAB1 efficacy by activating the innate immune system and shaping a Th1-biased adaptive immune response. GLA-SE adjuvanted mice and those adjuvanted with the SE component are better protected from surrogate challenge, while Th2 alum adjuvanted mice are not. Additionally, the immune response to FILORAB1 is long-lasting, as exhibited by highly-maintained serum antibody titers and long-lived cells in the spleen and bone marrow.
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Affiliation(s)
- Catherine Yankowski
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA
| | - Drishya Kurup
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA
- Jefferson Vaccine Center, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Christoph Wirblich
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA
| | - Matthias J Schnell
- Department of Microbiology and Immunology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA.
- Jefferson Vaccine Center, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA.
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Spengler JR, Welch SR, Ritter JM, Harmon JR, Coleman-McCray JD, Genzer SC, Seixas JN, Scholte FEM, Davies KA, Bradfute SB, Montgomery JM, Spiropoulou CF. Mouse models of Ebola virus tolerance and lethality: characterization of CD-1 mice infected with wild-type, guinea pig-adapted, or mouse-adapted virus. Antiviral Res 2023; 210:105496. [PMID: 36567020 DOI: 10.1016/j.antiviral.2022.105496] [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: 11/30/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022]
Abstract
Development of lethal models of Ebola virus disease has been achieved by the serial passage of virus isolates from human cases in mice and guinea pigs. Use of mice infected with non-adapted virus has been limited due to the absence of overt clinical disease. In recent years, newly recognized sequelae identified in human cases has highlighted the importance of continued investigations of non-lethal infection both in humans and animal models. Here, we revisit the use of rodent-adapted and non-adapted Ebola virus (EBOV) in mice to investigate infection tolerance and future utility of these models in pathogenesis and therapeutic intervention studies. We found that like non-adapted wild-type EBOV, guinea pig-adapted EBOV resulted in widespread tissue infection, variably associated with tissue pathology, and alterations in clinical and immunological analytes in the absence of overt disease. Notably, infection with either non-lethal variant did not greatly differ from lethal mouse-adapted EBOV until near the time end-point criteria are reached in these mice. These data support future investigations of pathogenesis, convalescence, and sequelae in mouse models of virus tolerance.
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Affiliation(s)
- Jessica R Spengler
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - Stephen R Welch
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jana M Ritter
- Infectious Disease Pathology Branch, Division of High Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jessica R Harmon
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - JoAnn D Coleman-McCray
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Sarah C Genzer
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Josilene N Seixas
- Infectious Disease Pathology Branch, Division of High Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Florine E M Scholte
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Katherine A Davies
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Steven B Bradfute
- Center for Global Health, Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Joel M Montgomery
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Christina F Spiropoulou
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA, USA
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Widerspick L, Steffen JF, Tappe D, Muñoz-Fontela C. Animal Model Alternatives in Filovirus and Bornavirus Research. Viruses 2023; 15:158. [PMID: 36680198 PMCID: PMC9863967 DOI: 10.3390/v15010158] [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: 12/06/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
The order Mononegavirales contains a variety of highly pathogenic viruses that may infect humans, including the families Filoviridae, Bornaviridae, Paramyxoviridae, and Rhabodoviridae. Animal models have historically been important to study virus pathogenicity and to develop medical countermeasures. As these have inherent shortcomings, the rise of microphysiological systems and organoids able to recapitulate hallmarks of the diseases caused by these viruses may have enormous potential to add to or partially replace animal modeling in the future. Indeed, microphysiological systems and organoids are already used in the pharmaceutical R&D pipeline because they are prefigured to overcome the translational gap between model systems and clinical studies. Moreover, they may serve to alleviate ethical concerns related to animal research. In this review, we discuss the value of animal model alternatives in human pathogenic filovirus and bornavirus research. The current animal models and their limitations are presented followed by an overview of existing alternatives, such as organoids and microphysiological systems, which might help answering open research questions.
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Affiliation(s)
- Lina Widerspick
- Bernhard-Nocht-Institute for Tropical Medicine, 20359 Hamburg, Germany
- German Center for Infection Research (DZIF), Partner Site Hamburg-Luebeck-Borstel-Riems, 38124 Braunschweig, Germany
| | | | - Dennis Tappe
- Bernhard-Nocht-Institute for Tropical Medicine, 20359 Hamburg, Germany
- National Reference Center for Tropical Pathogens, 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 (DZIF), Partner Site Hamburg-Luebeck-Borstel-Riems, 38124 Braunschweig, Germany
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Schiffman Z, Liu G, Cao W, Zhu W, Emeterio K, Qiu X, Banadyga L. The Ferret as a Model for Filovirus Pathogenesis and Countermeasure Evaluation. ILAR J 2021; 61:62-71. [PMID: 33951727 DOI: 10.1093/ilar/ilab011] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 12/04/2020] [Accepted: 01/14/2021] [Indexed: 11/13/2022] Open
Abstract
The domestic ferret (Mustela putorius furo) has long been a popular animal model for evaluating viral pathogenesis and transmission as well as the efficacy of candidate countermeasures. Without question, the ferret has been most widely implemented for modeling respiratory viruses, particularly influenza viruses; however, in recent years, it has gained attention as a novel animal model for characterizing filovirus infections. Although ferrets appear resistant to infection and disease caused by Marburg and Ravn viruses, they are highly susceptible to lethal disease caused by Ebola, Sudan, Bundibugyo, and Reston viruses. Notably, unlike the immunocompetent rodent models of filovirus infection, ferrets are susceptible to lethal disease caused by wild-type viruses, and they recapitulate many aspects of human filovirus disease, including systemic virus replication, coagulation abnormalities, and a dysregulated immune response. Along with the stringency with which they reproduce Ebola disease, their relatively small size and availability make ferrets an attractive choice for countermeasure evaluation and pathogenesis modeling. Indeed, they are so far the only small animal model available for Bundibugyo virus. Nevertheless, ferrets do have their limitations, including the lack of commercially available reagents to dissect host responses and their unproven predictive value in therapeutic evaluation. Although the use of the ferret model in ebolavirus research has been consistent over the last few years, its widespread use and utility remains to be fully proven. This review provides a comprehensive overview of the ferret models of filovirus infection and perspective on their ongoing use in pathogenesis modeling and countermeasure evaluation.
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Affiliation(s)
- Zachary Schiffman
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Manitoba, Canada.,Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Guodong Liu
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Wenguang Cao
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Wenjun Zhu
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Karla Emeterio
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Manitoba, Canada.,Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Xiangguo Qiu
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Logan Banadyga
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
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Development of a Well-Characterized Rhesus Macaque Model of Ebola Virus Disease for Support of Product Development. Microorganisms 2021; 9:microorganisms9030489. [PMID: 33652589 PMCID: PMC7996724 DOI: 10.3390/microorganisms9030489] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/23/2021] [Accepted: 02/23/2021] [Indexed: 11/17/2022] Open
Abstract
Ebola virus (EBOV) is a negative-sense RNA virus that can infect humans and nonhuman primates with severe health consequences. Development of countermeasures requires a thorough understanding of the interaction between host and pathogen, and the course of disease. The goal of this study was to further characterize EBOV disease in a uniformly lethal rhesus macaque model, in order to support development of a well-characterized model following rigorous quality standards. Rhesus macaques were intramuscularly exposed to EBOV and one group was euthanized at predetermined time points to characterize progression of disease. A second group was not scheduled for euthanasia in order to analyze survival, changes in physiology, clinical pathology, terminal pathology, and telemetry kinetics. On day 3, sporadic viremia was observed and pathological evidence was noted in lymph nodes. By day 5, viremia was detected in all EBOV exposed animals and pathological evidence was noted in the liver, spleen, and gastrointestinal tissues. These data support the notion that EBOV infection in rhesus macaques is a rapid systemic disease similar to infection in humans, under a compressed time scale. Biomarkers that correlated with disease progression at the earliest stages of infection were observed thereby identifying potential "trigger-to-treat" for use in therapeutic studies.
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Abstract
Since its discovery in 1976, Ebola virus (EBOV) has caused numerous outbreaks of fatal hemorrhagic disease in Africa. The biggest outbreak on record is the 2013-2016 epidemic in west Africa with almost 30,000 cases and over 11,000 fatalities, devastatingly affecting Guinea, Liberia, and Sierra Leone. The epidemic highlighted the need for licensed drugs or vaccines to quickly combat the disease. While at the beginning of the epidemic no licensed countermeasures were available, several experimental drugs with preclinical efficacy were accelerated into human clinical trials and used to treat patients with Ebola virus disease (EVD) toward the end of the epidemic. In the same manner, vaccines with preclinical efficacy were administered primarily to known contacts of EVD patients on clinical trial protocols using a ring-vaccination strategy. In this review, we describe the pathogenesis of EBOV and summarize the current status of EBOV vaccine development and treatment of EVD.
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Affiliation(s)
- Wakako Furuyama
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana 59840, USA;
| | - Andrea Marzi
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana 59840, USA;
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Madelain V, Duthey A, Mentré F, Jacquot F, Solas C, Lacarelle B, Vallvé A, Barron S, Barrot L, Mundweiler S, Thomas D, Carbonnelle C, Raoul H, de Lamballerie X, Guedj J. Ribavirin does not potentiate favipiravir antiviral activity against Ebola virus in non-human primates. Antiviral Res 2020; 177:104758. [PMID: 32135218 DOI: 10.1016/j.antiviral.2020.104758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 02/24/2020] [Accepted: 02/26/2020] [Indexed: 01/26/2023]
Abstract
BACKGROUND In spite of recurrent and dramatic outbreaks, there are no therapeutics approved against Ebola virus disease. Favipiravir, a RNA polymerase inhibitor active against several RNA viruses, recently demonstrated significant but not complete protection in a non-human primate model of Ebola virus disease. In this study, we assessed the benefit of the combination of favipiravir and ribavirin, another broad spectrum antiviral agent, in the same model. METHODS 15 female cynomolgus macaques were challenged intramuscularly with 1,000 FFU of Ebola virus Gabon 2001 strain and followed for 21 days. All animals received favipiravir 180 mg/kg twice a day (BID), either as monotherapy (n = 5) or in combination with ribavirin (n = 10). Ribavirin was given either at the dose 10 mg/kg BID (n = 5) or 5 mg/kg BID (n = 5). Favipiravir and ribavirin were initiated two and one days before viral challenge respectively and treatment were continued for 14 days. Treatment effects on viral and hematological markers were assessed using a mathematical model. Survival rate of 0% and 20% were obtained in macaques receiving favipiravir plus ribavirin 10 and 5 mg/kg BID, respectively, compared to 40% in the favipiravir monotherapy group (P = 0.061 when comparing monotherapy and bitherapy, log rank). Viral dynamic modeling analysis did not identify an association between plasma concentrations of ribavirin and viral load levels. Using a model of erythropoiesis, plasma concentrations of ribavirin were strongly associated with a hemoglobin drop (p = 0.0015). CONCLUSION Ribavirin plus favipiravir did not extend survival rates and did not lower viral replication rate compared to favipiravir monotherapy in this animal model. Patients receiving this combination in other indications, such as Lassa fever, should be closely monitored to prevent potential toxicity associated with anemia.
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Affiliation(s)
| | - Aurélie Duthey
- Laboratoire P4 Inserm-Jean Mérieux, US003 Inserm, 69365, Lyon, France
| | - France Mentré
- Université de Paris, IAME, INSERM, F-75018, Paris, France
| | - Frédéric Jacquot
- Laboratoire P4 Inserm-Jean Mérieux, US003 Inserm, 69365, Lyon, France
| | - Caroline Solas
- Aix-Marseille Univ, APHM, UMR "Emergence des Pathologies Virales" IRD190-Inserm1207-EHESP, Laboratoire Pharmacocinétique-Toxicologie, Hôpital La Timone, 13005, Marseille, France
| | - Bruno Lacarelle
- Aix-Marseille Univ, APHM, UMR "Emergence des Pathologies Virales" IRD190-Inserm1207-EHESP, Laboratoire Pharmacocinétique-Toxicologie, Hôpital La Timone, 13005, Marseille, France
| | - Audrey Vallvé
- Laboratoire P4 Inserm-Jean Mérieux, US003 Inserm, 69365, Lyon, France
| | - Stéphane Barron
- Laboratoire P4 Inserm-Jean Mérieux, US003 Inserm, 69365, Lyon, France
| | - Laura Barrot
- Laboratoire P4 Inserm-Jean Mérieux, US003 Inserm, 69365, Lyon, France
| | | | - Damien Thomas
- Laboratoire P4 Inserm-Jean Mérieux, US003 Inserm, 69365, Lyon, France
| | | | - Hervé Raoul
- Laboratoire P4 Inserm-Jean Mérieux, US003 Inserm, 69365, Lyon, France
| | - Xavier de Lamballerie
- UMR "Emergence des Pathologies Virales" (EPV: Aix-Marseille University - IRD 190 - Inserm 1207 - EHESP), Institut Hospitalo-Universitaire Méditerranée Infection, F-13385, Marseille, France
| | - Jérémie Guedj
- Université de Paris, IAME, INSERM, F-75018, Paris, France.
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Logue J, Crozier I, Jahrling PB, Kuhn JH. Post-exposure prophylactic vaccine candidates for the treatment of human Risk Group 4 pathogen infections. Expert Rev Vaccines 2020; 19:85-103. [PMID: 31937163 PMCID: PMC7011290 DOI: 10.1080/14760584.2020.1713756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/07/2020] [Indexed: 12/30/2022]
Abstract
Introduction: The development of therapeutics and vaccines to combat Risk Group 4 pathogens, which are associated with high case-fatality rates, is a high priority. Postexposure prophylactic vaccines have the potential to bridge classical therapeutic and vaccine applications, but little progress has been reported to date.Areas covered: This review provides an overview of postexposure prophylactic vaccine candidates against Risk Group 4 pathogens.Expert opinion: A few candidate postexposure prophylactic vaccines protect experimental animals infected with a few Risk Group 4 pathogens, such as filoviruses or hantaviruses, but the efficacy of candidate vaccines has not been similarly reported for most other high-consequence pathogens. A major drawback for the further development of existing candidates is the lack of understanding of their mechanisms of action, knowledge of which could help to identify focused paths forward in vaccine development and licensure. These drawbacks to further development ultimately slow progress toward postexposure prophylactic vaccine licensure.
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Affiliation(s)
- James Logue
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Frederick, MD, USA
| | - Ian Crozier
- Integrated Research Facility at Fort Detrick, Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD, USA
| | - Peter B Jahrling
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Frederick, MD, USA
| | - Jens H Kuhn
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Frederick, MD, USA
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Nicholas VV, Rosenke R, Feldmann F, Long D, Thomas T, Scott DP, Feldmann H, Marzi A. Distinct Biological Phenotypes of Marburg and Ravn Virus Infection in Macaques. J Infect Dis 2019; 218:S458-S465. [PMID: 30215737 DOI: 10.1093/infdis/jiy456] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Filoviruses are among the most pathogenic infectious agents known to human, with high destructive potential, as evidenced by the recent Ebola virus epidemic in West Africa. As members of the filovirus family, marburgviruses have caused similar devastating outbreaks, albeit with lower case numbers. In this study we compare the pathogenesis of Ravn virus (RAVV) and Marburg virus (MARV) strains Angola, Musoke, and Ozolin in rhesus and cynomolgus macaques, the 2 nonhuman primate species most commonly used in filovirus research. Our results reveal the most pathogenic MARV strain to be Angola, followed by Musoke, whereas Ozolin is the least pathogenic. We also demonstrate that RAVV is highly pathogenic in cynomolgus macaques but less pathogenic in rhesus macaques. Our results demonstrate a preferential infection of endothelial cells by MARVs; in addition, analysis of tissue samples suggests that lymphocyte and hepatocyte apoptosis might play a role in MARV pathogenicity. This information expands our knowledge about pathogenicity and virulence of marburgviruses.
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Affiliation(s)
- Veronica V Nicholas
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
| | - Rebecca Rosenke
- Rocky Mountain Veterinary Branch, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
| | - Friederike Feldmann
- Rocky Mountain Veterinary Branch, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
| | - Dan Long
- Rocky Mountain Veterinary Branch, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
| | - Tina Thomas
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
| | - Dana P Scott
- Rocky Mountain Veterinary Branch, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
| | - Heinz Feldmann
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
| | - Andrea Marzi
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana
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Ananthula HK, Parker S, Touchette E, Buller RM, Patel G, Kalman D, Salzer JS, Gallardo-Romero N, Olson V, Damon IK, Moir-Savitz T, Sallans L, Werner MH, Sherwin CM, Desai PB. Preclinical pharmacokinetic evaluation to facilitate repurposing of tyrosine kinase inhibitors nilotinib and imatinib as antiviral agents. BMC Pharmacol Toxicol 2018; 19:80. [PMID: 30514402 PMCID: PMC6278073 DOI: 10.1186/s40360-018-0270-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 11/13/2018] [Indexed: 11/28/2022] Open
Abstract
Background Several tyrosine kinase inhibitors (TKIs) developed as anti-cancer drugs, also have anti-viral activity due to their ability to disrupt productive replication and dissemination in infected cells. Consequently, such drugs are attractive candidates for “repurposing” as anti-viral agents. However, clinical evaluation of therapeutics against infectious agents associated with high mortality, but low or infrequent incidence, is often unfeasible. The United States Food and Drug Administration formulated the “Animal Rule” to facilitate use of validated animal models for conducting anti-viral efficacy studies. Methods To enable such efficacy studies of two clinically approved TKIs, nilotinib, and imatinib, we first conducted comprehensive pharmacokinetic (PK) studies in relevant rodent and non-rodent animal models. PK of these agents following intravenous and oral dosing were evaluated in C57BL/6 mice, prairie dogs, guinea pigs and Cynomolgus monkeys. Plasma samples were analyzed using an LC-MS/MS method. Secondarily, we evaluated the utility of allometry-based inter-species scaling derived from previously published data to predict the PK parameters, systemic clearance (CL) and the steady state volume of distribution (Vss) of these two drugs in prairie dogs, an animal model not tested thus far. Results Marked inter-species variability in PK parameters and resulting oral bioavailability was observed. In general, elimination half-lives of these agents in mice and guinea pigs were much shorter (1–3 h) relative to those in larger species such as prairie dogs and monkeys. The longer nilotinib elimination half-life in prairie dogs (i.v., 6.5 h and oral, 7.5 h), facilitated multiple dosing PK and safety assessment. The allometry-based predicted values of the Vss and CL were within 2.0 and 2.5-fold, respectively, of the observed values. Conclusions Our results suggest that prairie dogs and monkeys may be suitable rodent and non-rodent species to perform further efficacy testing of these TKIs against orthopoxvirus infections. The use of rodent models such as C57BL/6 mice and guinea pigs for assessing pre-clinical anti-viral efficacy of these two TKIs may be limited due to short elimination and/or low oral bioavailability. Allometry-based correlations, derived from existing literature data, may provide initial estimates, which may serve as a useful guide for pre-clinical PK studies in untested animal models.
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Affiliation(s)
| | - Scott Parker
- Department of Molecular Microbiology and Immunology, School of Medicine, Saint Louis University, St. Louis, MO, USA
| | - Erin Touchette
- Department of Molecular Microbiology and Immunology, School of Medicine, Saint Louis University, St. Louis, MO, USA
| | - R Mark Buller
- Department of Molecular Microbiology and Immunology, School of Medicine, Saint Louis University, St. Louis, MO, USA
| | - Gopi Patel
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Daniel Kalman
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | | | | | - Victoria Olson
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Inger K Damon
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Larry Sallans
- Mass Spectrometry Facility, University of Cincinnati, Cincinnati, OH, USA
| | | | - Catherine M Sherwin
- Division Clinical Pharmacology, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Pankaj B Desai
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH, USA.
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13
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Atkins C, Miao J, Kalveram B, Juelich T, Smith JK, Perez D, Zhang L, Westover JLB, Van Wettere AJ, Gowen BB, Wang Z, Freiberg AN. Natural History and Pathogenesis of Wild-Type Marburg Virus Infection in STAT2 Knockout Hamsters. J Infect Dis 2018; 218:S438-S447. [PMID: 30192975 PMCID: PMC6249581 DOI: 10.1093/infdis/jiy457] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Marburg virus (MARV; family Filoviridae) causes sporadic outbreaks of Marburg hemorrhagic fever in sub-Saharan Africa with case fatality rates reaching 90%. Wild-type filoviruses, including MARV and the closely related Ebola virus, are unable to suppress the type I interferon response in rodents, and therefore require adaptation of the viruses to cause disease in immunocompetent animals. In the current study, we demonstrate that STAT2 knockout Syrian hamsters are susceptible to infection with different wild-type MARV variants. MARV Musoke causes a robust and systemic infection resulting in lethal disease. Histopathological findings share features similar to those observed in human patients and other animal models of filovirus infection. Reverse-transcription polymerase chain reaction analysis of host transcripts shows a dysregulation of the innate immune response. Our results demonstrate that the STAT2 knockout hamster represents a novel small animal model of severe MARV infection and disease without the requirement for virus adaptation.
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Affiliation(s)
- Colm Atkins
- Department of Pathology, University of Texas Medical Branch, Galveston
| | - Jinxin Miao
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan
- Department of Pathology, School of Basic Medical Sciences, Zhengzhou University, China
| | - Birte Kalveram
- Department of Pathology, University of Texas Medical Branch, Galveston
| | - Terry Juelich
- Department of Pathology, University of Texas Medical Branch, Galveston
| | - Jennifer K Smith
- Department of Pathology, University of Texas Medical Branch, Galveston
| | - David Perez
- Department of Pathology, University of Texas Medical Branch, Galveston
| | - Lihong Zhang
- Department of Pathology, University of Texas Medical Branch, Galveston
| | - Jonna L B Westover
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan
| | - Arnaud J Van Wettere
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan
| | - Brian B Gowen
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan
| | - Zhongde Wang
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan
| | - Alexander N Freiberg
- Department of Pathology, University of Texas Medical Branch, Galveston
- Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston
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14
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Blair PW, Keshtkar-Jahromi M, Psoter KJ, Reisler RB, Warren TK, Johnston SC, Goff AJ, Downey LG, Bavari S, Cardile AP. Virulence of Marburg Virus Angola Compared to Mt. Elgon (Musoke) in Macaques: A Pooled Survival Analysis. Viruses 2018; 10:v10110658. [PMID: 30469360 PMCID: PMC6267608 DOI: 10.3390/v10110658] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/18/2018] [Accepted: 11/19/2018] [Indexed: 11/21/2022] Open
Abstract
Angola variant (MARV/Ang) has replaced Mt. Elgon variant Musoke isolate (MARV/MtE-Mus) as the consensus standard variant for Marburg virus research and is regarded as causing a more aggressive phenotype of disease in animal models; however, there is a dearth of published evidence supporting the higher virulence of MARV/Ang. In this retrospective study, we used data pooled from eight separate studies in nonhuman primates experimentally exposed with either 1000 pfu intramuscular (IM) MARV/Ang or MARV/MtE-Mus between 2012 and 2017 at the United States Army Medical Research Institute of Infectious Diseases (USAMRIID). Multivariable Cox proportional hazards regression was used to evaluate the association of variant type with time to death, the development of anorexia, rash, viremia, and 10 select clinical laboratory values. A total of 47 cynomolgus monkeys were included, of which 18 were exposed to MARV/Ang in three separate studies and 29 to MARV/MtE-Mus in five studies. Following universally fatal Marburg virus exposure, compared to MARV/MtE-Mus, MARV/Ang was associated with an increased risk of death (HR = 22.10; 95% CI: 7.08, 68.93), rash (HR = 5.87; 95% CI: 2.76, 12.51) and loss of appetite (HR = 35.10; 95% CI: 7.60, 162.18). Our data demonstrate an increased virulence of MARV/Ang compared to MARV/MtE-Mus variant in the 1000 pfu IM cynomolgus macaque model.
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Affiliation(s)
- Paul W Blair
- Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
| | - Maryam Keshtkar-Jahromi
- Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
| | - Kevin J Psoter
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA.
| | - Ronald B Reisler
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA.
| | - Travis K Warren
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA.
| | - Sara C Johnston
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA.
| | - Arthur J Goff
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA.
| | - Lydia G Downey
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA.
| | - Sina Bavari
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA.
| | - Anthony P Cardile
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA.
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15
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Edwards SJL, Norell CH, Illari P, Clarke B, Neuhaus CP. A Radical Approach to Ebola: Saving Humans and Other Animals. THE AMERICAN JOURNAL OF BIOETHICS : AJOB 2018; 18:35-42. [PMID: 30339070 DOI: 10.1080/15265161.2018.1513584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
As the usual regulatory framework did not fit well during the last Ebola outbreak, innovative thinking still needed. In the absence of an outbreak, randomised controlled trials of clinical efficacy in humans cannot be done, while during an outbreak such trials will continue to face significant practical, philosophical, and ethical challenges. This article argues that researchers should also test the safety and effectiveness of novel vaccines in wild apes by employing a pluralistic approach to evidence. There are three reasons to test vaccines in wild populations of apes: i) protect apes; ii) reduce Ebola transmission from wild animals to humans; and iii) accelerate vaccine development and licensing for humans. Data obtained from studies of vaccines among wild apes and chimpanzees may even be considered sufficient for licensing new vaccines for humans. This strategy will serve to benefit both wild apes and humans.
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16
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Madelain V, Baize S, Jacquot F, Reynard S, Fizet A, Barron S, Solas C, Lacarelle B, Carbonnelle C, Mentré F, Raoul H, de Lamballerie X, Guedj J. Ebola viral dynamics in nonhuman primates provides insights into virus immuno-pathogenesis and antiviral strategies. Nat Commun 2018; 9:4013. [PMID: 30275474 PMCID: PMC6167368 DOI: 10.1038/s41467-018-06215-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 08/23/2018] [Indexed: 01/12/2023] Open
Abstract
Despite several clinical trials implemented, no antiviral drug could demonstrate efficacy against Ebola virus. In non-human primates, early initiation of polymerase inhibitors favipiravir and remdesivir improves survival, but whether they could be effective in patients is unknown. Here we analyze the impact of antiviral therapy by using a mathematical model that integrates virological and immunological data of 44 cynomolgus macaques, left untreated or treated with favipiravir. We estimate that favipiravir has a ~50% efficacy in blocking viral production, which results in reducing virus growth and cytokine storm while IFNα reduces cell susceptibility to infection. Simulating the effect of delayed initiations of treatment, our model predicts survival rates of 60% for favipiravir and 100% for remdesivir when treatment is initiated within 3 and 4 days post infection, respectively. These results improve the understanding of Ebola immuno-pathogenesis and can help optimize antiviral evaluation in future outbreaks.
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Affiliation(s)
- Vincent Madelain
- IAME, UMR 1137, INSERM, Université Paris Diderot, Sorbonne Paris Cité Paris, 75018, Paris, France.
| | - Sylvain Baize
- UBIVE, Institut Pasteur, Centre International de Recherche en Infectiologie, 69007, Lyon, France
| | - Frédéric Jacquot
- Laboratoire P4 Inserm-Jean Mérieux, US003 Inserm, 69365, Lyon, France
| | - Stéphanie Reynard
- UBIVE, Institut Pasteur, Centre International de Recherche en Infectiologie, 69007, Lyon, France
| | - Alexandra Fizet
- UBIVE, Institut Pasteur, Centre International de Recherche en Infectiologie, 69007, Lyon, France
| | - Stephane Barron
- Laboratoire P4 Inserm-Jean Mérieux, US003 Inserm, 69365, Lyon, France
| | - Caroline Solas
- Aix-Marseille Univ U105, APHM, SMARTc CRCM Inserm UMR1068 CNRS UMR7258, Hôpital La Timone, Laboratoire de Pharmacocinétique et Toxicologie, 13005, Marseille, France
| | - Bruno Lacarelle
- Aix-Marseille Univ U105, APHM, SMARTc CRCM Inserm UMR1068 CNRS UMR7258, Hôpital La Timone, Laboratoire de Pharmacocinétique et Toxicologie, 13005, Marseille, France
| | | | - France Mentré
- IAME, UMR 1137, INSERM, Université Paris Diderot, Sorbonne Paris Cité Paris, 75018, Paris, France
| | - Hervé Raoul
- Laboratoire P4 Inserm-Jean Mérieux, US003 Inserm, 69365, Lyon, France
| | - Xavier de Lamballerie
- UMR "Emergence des Pathologies Virales" (EPV: Aix-Marseille university - IRD 190 - Inserm 1207 - EHESP) - Institut Hospitalo-Universitaire Méditerranée Infection, 13385, Marseille, France
| | - Jérémie Guedj
- IAME, UMR 1137, INSERM, Université Paris Diderot, Sorbonne Paris Cité Paris, 75018, Paris, France
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17
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Best SM, Feldmann H. Tip Your Cap for Ebola Virus Neutralization. Immunity 2018; 49:204-206. [PMID: 30134198 PMCID: PMC11078264 DOI: 10.1016/j.immuni.2018.08.001] [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] [Indexed: 10/28/2022]
Abstract
Outbreaks of Ebola virus disease are caused by multiple virus species although current therapeutic monoclonal antibodies (mAb) are essentially limited to treating one species, Zaire ebolavirus. In this issue of Immunity, Gilchuk et al. (2018) identify new mAbs with potent cross-neutralizing activity against three ebolavirus species pathogenic to humans.
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Affiliation(s)
- Sonja M Best
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 903 S. Fourth St., Hamilton, MT, USA.
| | - Heinz Feldmann
- Laboratory of Virology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 903 S. Fourth St., Hamilton, MT, USA
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18
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Suder E, Furuyama W, Feldmann H, Marzi A, de Wit E. The vesicular stomatitis virus-based Ebola virus vaccine: From concept to clinical trials. Hum Vaccin Immunother 2018; 14:2107-2113. [PMID: 29757706 PMCID: PMC6183239 DOI: 10.1080/21645515.2018.1473698] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 04/30/2018] [Indexed: 10/25/2022] Open
Abstract
The devastating Ebola virus (EBOV) epidemic in West Africa in 2013-2016 accelerated the progress of several vaccines and antivirals through clinical trials, including the replication-competent vesicular stomatitis virus-based vaccine expressing the EBOV glycoprotein (VSV-EBOV). Extensive preclinical testing in animal models demonstrated the prophylactic and post-exposure efficacy of this vaccine, identified the mechanism of protection, and suggested it was safe for human use. Based on these data, VSV-EBOV was extensively tested in phase 1-3 clinical trials in North America, Europe and Africa. Although some side effects of vaccination were observed, these clinical trials showed that the VSV-EBOV was safe and immunogenic in humans. Moreover, the data supported the use of VSV-EBOV as an emergency vaccine in individuals at risk for Ebola virus disease. In this review, we summarize the results of the extensive preclinical and clinical testing of the VSV-EBOV vaccine.
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MESH Headings
- Animals
- Clinical Trials as Topic
- Drug Carriers
- Drug Evaluation, Preclinical
- Drug-Related Side Effects and Adverse Reactions/epidemiology
- Drug-Related Side Effects and Adverse Reactions/pathology
- Ebola Vaccines/administration & dosage
- Ebola Vaccines/genetics
- Ebola Vaccines/immunology
- Ebola Vaccines/isolation & purification
- Hemorrhagic Fever, Ebola/prevention & control
- Humans
- Vaccines, Attenuated/administration & dosage
- Vaccines, Attenuated/genetics
- Vaccines, Attenuated/immunology
- Vaccines, Attenuated/isolation & purification
- Vaccines, Synthetic/administration & dosage
- Vaccines, Synthetic/genetics
- Vaccines, Synthetic/immunology
- Vaccines, Synthetic/isolation & purification
- Vesiculovirus/genetics
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Affiliation(s)
- Ellen Suder
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Wakako Furuyama
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Heinz Feldmann
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Andrea Marzi
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
| | - Emmie de Wit
- Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA
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19
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Abstract
The development of novel therapeutics and vaccines to treat or prevent disease caused by filoviruses, such as Ebola and Marburg viruses, depends on the availability of animal models that faithfully recapitulate clinical hallmarks of disease as it is observed in humans. In particular, small animal models (such as mice and guinea pigs) are historically and frequently used for the primary evaluation of antiviral countermeasures, prior to testing in nonhuman primates, which represent the gold-standard filovirus animal model. In the past several years, however, the filovirus field has witnessed the continued refinement of the mouse and guinea pig models of disease, as well as the introduction of the hamster and ferret models. We now have small animal models for most human-pathogenic filoviruses, many of which are susceptible to wild type virus and demonstrate key features of disease, including robust virus replication, coagulopathy, and immune system dysfunction. Although none of these small animal model systems perfectly recapitulates Ebola virus disease or Marburg virus disease on its own, collectively they offer a nearly complete set of tools in which to carry out the preclinical development of novel antiviral drugs.
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Affiliation(s)
- Logan Banadyga
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB R3E 3R2, Canada
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, 745 Bannatyne Street, Winnipeg, MB R3E 0J9, Canada
| | - Gary Wong
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB R3E 3R2, Canada
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, 745 Bannatyne Street, Winnipeg, MB R3E 0J9, Canada
- Guangdong Key Laboratory for Diagnosis and Treatment of Emerging Infectious Diseases, Shenzhen Key Laboratory of Pathogen and Immunity, Shenzhen Third People’s Hospital, 29 Bulan Road, Longgang District, Shenzhen, China, 518000
| | - Xiangguo Qiu
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB R3E 3R2, Canada
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, 745 Bannatyne Street, Winnipeg, MB R3E 0J9, Canada
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20
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Abstract
The family Filoviridae, which includes the genera Marburgvirus and Ebolavirus, contains some of the most pathogenic viruses in humans and non-human primates (NHPs), causing severe hemorrhagic fevers with high fatality rates. Small animal models against filoviruses using mice, guinea pigs, hamsters, and ferrets have been developed with the goal of screening candidate vaccines and antivirals, before testing in the gold standard NHP models. In this review, we summarize the different animal models used to understand filovirus pathogenesis, and discuss the advantages and disadvantages of each model with respect to filovirus disease research.
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Affiliation(s)
- Vinayakumar Siragam
- Special Pathogens Program, Public Health Agency of Canada, Winnipeg, Manitoba R3E 3R2, Canada.,Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba R3E 0J9, Canada
| | - Gary Wong
- Special Pathogens Program, Public Health Agency of Canada, Winnipeg, Manitoba R3E 3R2, Canada.,Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba R3E 0J9, Canada.,Shenzhen Key Laboratory of Pathogen and Immunity, State Key Discipline of Infectious Disease, Shenzhen Third People's Hospital, Shenzhen Guangzhou 518020, China.,Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiang-Guo Qiu
- Special Pathogens Program, Public Health Agency of Canada, Winnipeg, Manitoba R3E 3R2, Canada. .,Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba R3E 0J9, Canada
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21
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Cooper TK, Huzella L, Johnson JC, Rojas O, Yellayi S, Sun MG, Bavari S, Bonilla A, Hart R, Jahrling PB, Kuhn JH, Zeng X. Histology, immunohistochemistry, and in situ hybridization reveal overlooked Ebola virus target tissues in the Ebola virus disease guinea pig model. Sci Rep 2018; 8:1250. [PMID: 29352230 PMCID: PMC5775334 DOI: 10.1038/s41598-018-19638-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 01/02/2018] [Indexed: 12/20/2022] Open
Abstract
Survivors of Ebola virus infection may become subclinically infected, but whether animal models recapitulate this complication is unclear. Using histology in combination with immunohistochemistry and in situ hybridization in a retrospective review of a guinea pig confirmation-of-virulence study, we demonstrate for the first time Ebola virus infection in hepatic oval cells, the endocardium and stroma of the atrioventricular valves and chordae tendinae, satellite cells of peripheral ganglia, neurofibroblasts and Schwann cells of peripheral nerves and ganglia, smooth muscle cells of the uterine myometrium and vaginal wall, acini of the parotid salivary glands, thyroid follicular cells, adrenal medullary cells, pancreatic islet cells, endometrial glandular and surface epithelium, and the epithelium of the vagina, penis and, prepuce. These findings indicate that standard animal models for Ebola virus disease are not as well-described as previously thought and may serve as a stepping stone for future identification of potential sites of virus persistence.
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Affiliation(s)
- Timothy K Cooper
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, USA.
| | - Louis Huzella
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, USA
| | - Joshua C Johnson
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, USA
| | - Oscar Rojas
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, USA
| | - Sri Yellayi
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, USA
- Path-2-Gene, LLC, Harrisburg, PA, USA
| | - Mei G Sun
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, Maryland, USA
| | - Sina Bavari
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, Maryland, USA
| | - Amanda Bonilla
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, USA
| | - Randy Hart
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, USA
| | - Peter B Jahrling
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, USA
| | - Jens H Kuhn
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, USA
| | - Xiankun Zeng
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, Maryland, USA.
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22
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Bixler SL, Bocan TM, Wells J, Wetzel KS, Van Tongeren SA, Dong L, Garza NL, Donnelly G, Cazares LH, Nuss J, Soloveva V, Koistinen KA, Welch L, Epstein C, Liang LF, Giesing D, Lenk R, Bavari S, Warren TK. Efficacy of favipiravir (T-705) in nonhuman primates infected with Ebola virus or Marburg virus. Antiviral Res 2017; 151:97-104. [PMID: 29289666 DOI: 10.1016/j.antiviral.2017.12.021] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 12/21/2017] [Accepted: 12/26/2017] [Indexed: 01/18/2023]
Abstract
Favipiravir is a broad-spectrum antiviral agent that has demonstrated efficacy against Ebola virus (EBOV) in rodents. However, there are no published reports of favipiravir efficacy for filovirus infection of nonhuman primates (NHPs). Here we evaluated the pharmacokinetic profile of favipiravir in NHPs, as well as in vivo efficacy against two filoviruses, EBOV and Marburg virus (MARV). While no survival benefit was observed in two studies employing once- or twice-daily oral dosing of favipiravir during EBOV infection of NHPs, an antiviral effect was observed in terms of extended time-to-death and reduced levels of viral RNA. However, oral dosing in biosafety level-4 (BSL-4) presents logistical and technical challenges, and repeated anesthesia events may potentially worsen survival outcome in animals. For the third study of treatment of MARV infection, we therefore made use of catheters, jackets, and tethers for intravenous (IV) dosing and blood collection, which minimized the requirement for repeated anesthesia events. When MARV infection was treated with IV favipiravir, five of six animals (83%) survived infection, while all untreated NHPs succumbed. An accompanying report presents the results of favipiravir treatment of EBOV infection in mice.
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Affiliation(s)
- Sandra L Bixler
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Thomas M Bocan
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Jay Wells
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Kelly S Wetzel
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Sean A Van Tongeren
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Lian Dong
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Nicole L Garza
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Ginger Donnelly
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Lisa H Cazares
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Jonathan Nuss
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Veronica Soloveva
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Keith A Koistinen
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Lisa Welch
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA; Currently of FUJIFILM Pharmaceuticals U.S.A., Inc., One Post Office Square, Boston, MA 02109, USA
| | - Carol Epstein
- Currently of FUJIFILM Pharmaceuticals U.S.A., Inc., One Post Office Square, Boston, MA 02109, USA
| | - Li-Fang Liang
- Currently of FUJIFILM Pharmaceuticals U.S.A., Inc., One Post Office Square, Boston, MA 02109, USA
| | - Dennis Giesing
- Currently of FUJIFILM Pharmaceuticals U.S.A., Inc., One Post Office Square, Boston, MA 02109, USA
| | - Robert Lenk
- Currently of FUJIFILM Pharmaceuticals U.S.A., Inc., One Post Office Square, Boston, MA 02109, USA
| | - Sina Bavari
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA
| | - Travis K Warren
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Ft. Detrick, MD 21702, USA.
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23
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Identification and pathological characterization of persistent asymptomatic Ebola virus infection in rhesus monkeys. Nat Microbiol 2017; 2:17113. [PMID: 28715405 DOI: 10.1038/nmicrobiol.2017.113] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 06/12/2017] [Indexed: 12/21/2022]
Abstract
Ebola virus (EBOV) persistence in asymptomatic humans and Ebola virus disease (EVD) sequelae have emerged as significant public health concerns since the 2013-2016 EVD outbreak in Western Africa. Until now, studying how EBOV disseminates into and persists in immune-privileged sites was impossible due to the absence of a suitable animal model. Here, we detect persistent EBOV replication coinciding with systematic inflammatory responses in otherwise asymptomatic rhesus monkeys that had survived infection in the absence of or after treatment with candidate medical countermeasures. We document progressive EBOV dissemination into the eyes, brain and testes through vascular structures, similar to observations in humans. We identify CD68+ cells (macrophages/monocytes) as the cryptic EBOV reservoir cells in the vitreous humour and its immediately adjacent tissue, in the tubular lumina of the epididymides, and in foci of histiocytic inflammation in the brain, but not in organs typically affected during acute infection. In conclusion, our data suggest that persistent EBOV infection in rhesus monkeys could serve as a model for persistent EBOV infection in humans, and we demonstrate that promising candidate medical countermeasures may not completely clear EBOV infection. A rhesus monkey model may lay the foundation to study EVD sequelae and to develop therapies to abolish EBOV persistence.
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Abstract
Mouse models of Ebola virus (EBOV) have demonstrated their utility as important tools for screening the efficacy of candidate therapeutics and vaccines. In this chapter we explain the various mouse models that utilize either wild-type or mouse-adapted EBOV variants.
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Ning YJ, Deng F, Hu Z, Wang H. The roles of ebolavirus glycoproteins in viral pathogenesis. Virol Sin 2016; 32:3-15. [PMID: 27853993 PMCID: PMC6791933 DOI: 10.1007/s12250-016-3850-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 10/09/2016] [Indexed: 12/20/2022] Open
Abstract
Ebolaviruses are highly dangerous pathogens exhibiting extreme virulence in humans and nonhuman primates. The majority of ebolavirus species, most notably Zaire ebolavirus, can cause Ebola virus disease (EVD), formerly known as Ebola hemorrhagic fever, in humans. EVD is associated with case-fatality rates as high as 90%, and there is currently no specific treatment or licensed vaccine available against EVD. Understanding the molecular biology and pathogenesis of ebolaviruses is important for the development of antiviral therapeutics. Ebolavirus encodes several forms of glycoproteins (GPs), which have some interesting characteristics, including the transcriptional editing coding strategy and extensive O-glycosylation modification, clustered in the mucin-like domain of GP1, full-length GP (GP1,2), and shed GP. In addition to the canonical role of the spike protein, GP1,2, in viral entry, ebolavirus GPs appear to have multiple additional functions, likely contributing to the complex pathogenesis of the virus. Here, we review the roles of ebolavirus GPs in viral pathogenesis.
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Affiliation(s)
- Yun-Jia Ning
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Fei Deng
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Zhihong Hu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Hualin Wang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China.
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Banadyga L, Dolan MA, Ebihara H. Rodent-Adapted Filoviruses and the Molecular Basis of Pathogenesis. J Mol Biol 2016; 428:3449-66. [PMID: 27189922 PMCID: PMC5010511 DOI: 10.1016/j.jmb.2016.05.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/04/2016] [Accepted: 05/06/2016] [Indexed: 11/29/2022]
Abstract
Ebola, Marburg, and Ravn viruses, all filoviruses, are the causative agents of severe hemorrhagic fever. Much of what we understand about the pathogenesis of filovirus disease is derived from work with animal models, including nonhuman primates, which are considered the "gold standard" filovirus model since they faithfully recapitulate the clinical hallmarks of filovirus disease. However, rodent models, including the mouse, guinea pig, and hamster, also exist for Ebola, Marburg, and Ravn viruses, and although they may not reproduce all the clinical signs of filovirus disease, thanks to their relative ease of use and low cost, they are often the first choice for initial descriptions of virus pathogenesis and evaluation of antiviral prophylactics and therapeutics. Since filoviruses do not cause significant disease in adult, immunocompetent rodents, these models rely on "rodent-adapted" viruses that have been passaged several times through their host until virulence and lethality are achieved. In the process of adaptation, the viruses acquire numerous nucleotide/amino acid mutations that contribute to virulence in their rodent host. Interestingly, virus protein 24 (VP24) and nucleoprotein (NP) appear to be major virulence factors for ebolaviruses in rodents, whereas VP40 appears to be the major virulence factor for marburgviruses. By characterizing these mutations and understanding the molecular mechanisms that lead to the acquisition of virulence, we can gain better insight into the pathogenic processes that underlie filovirus disease in humans. These processes, and the viral and/or cellular proteins that contribute to them, will make attractive targets for the development of novel therapeutics and counter-measures.
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Affiliation(s)
- Logan Banadyga
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, USA
| | - Michael A Dolan
- Bioinformatics and Computational Biosciences Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Hideki Ebihara
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, USA.
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Smither SJ, Eastaugh L, Ngugi S, O'Brien L, Phelps A, Steward J, Lever MS. Ebola Virus Makona Shows Reduced Lethality in an Immune-deficient Mouse Model. J Infect Dis 2016; 214:S268-S274. [PMID: 27471321 DOI: 10.1093/infdis/jiw145] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 04/04/2016] [Indexed: 11/14/2022] Open
Abstract
Ebola virus Makona (EBOV-Makona; from the 2013-2016 West Africa outbreak) shows decreased virulence in an immune-deficient mouse model, compared with a strain from 1976. Unlike other filoviruses tested, EBOV-Makona may be slightly more virulent by the aerosol route than by the injected route, as 2 mice died following aerosol exposure, compared with no mortality among mice that received intraperitoneal injection of equivalent or higher doses. Although most mice did not succumb to infection, the detection of an immunoglobulin G antibody response along with observed clinical signs suggest that the mice were infected but able to clear the infection and recover. We hypothesize that this may be due to the growth rates and kinetics of the virus, which appear slower than that for other filoviruses and consequently give more time for an immune response that results in clearance of the virus. In this instance, the immune-deficient mouse model is unlikely to be appropriate for testing medical countermeasures against this EBOV-Makona stock but may provide insight into pathogenesis and the immune response to virus.
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Affiliation(s)
- Sophie J Smither
- Chemical, Biological, and Radiological Division, Defence Science and Technology Laboratory (Dstl), Salisbury, United Kingdom
| | - Lin Eastaugh
- Chemical, Biological, and Radiological Division, Defence Science and Technology Laboratory (Dstl), Salisbury, United Kingdom
| | - Sarah Ngugi
- Chemical, Biological, and Radiological Division, Defence Science and Technology Laboratory (Dstl), Salisbury, United Kingdom
| | - Lyn O'Brien
- Chemical, Biological, and Radiological Division, Defence Science and Technology Laboratory (Dstl), Salisbury, United Kingdom
| | - Amanda Phelps
- Chemical, Biological, and Radiological Division, Defence Science and Technology Laboratory (Dstl), Salisbury, United Kingdom
| | - Jackie Steward
- Chemical, Biological, and Radiological Division, Defence Science and Technology Laboratory (Dstl), Salisbury, United Kingdom
| | - Mark Stephen Lever
- Chemical, Biological, and Radiological Division, Defence Science and Technology Laboratory (Dstl), Salisbury, United Kingdom
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Cytomegalovirus-based vaccine expressing Ebola virus glycoprotein protects nonhuman primates from Ebola virus infection. Sci Rep 2016; 6:21674. [PMID: 26876974 PMCID: PMC4753684 DOI: 10.1038/srep21674] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 01/28/2016] [Indexed: 11/08/2022] Open
Abstract
Ebolaviruses pose significant public health problems due to their high lethality, unpredictable emergence, and localization to the poorest areas of the world. In addition to implementation of standard public health control procedures, a number of experimental human vaccines are being explored as a further means for outbreak control. Recombinant cytomegalovirus (CMV)-based vectors are a novel vaccine platform that have been shown to induce substantial levels of durable, but primarily T-cell-biased responses against the encoded heterologous target antigen. Herein, we demonstrate the ability of rhesus CMV (RhCMV) expressing Ebola virus (EBOV) glycoprotein (GP) to provide protective immunity to rhesus macaques against lethal EBOV challenge. Surprisingly, vaccination was associated with high levels of GP-specific antibodies, but with no detectable GP-directed cellular immunity.
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