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Shaw TM, Dettle ST, Mejia A, Hayes JM, Simmons HA, Basu P, Kuhn JH, Ramuta MD, Warren CJ, Jahrling PB, O'Connor DH, Huang L, Zaeem M, Seo J, Slukvin II, Brown ME, Bailey AL. Isolation of Diverse Simian Arteriviruses Causing Hemorrhagic Disease. Emerg Infect Dis 2024; 30:721-731. [PMID: 38526136 PMCID: PMC10977827 DOI: 10.3201/eid3004.231457] [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] [Indexed: 03/26/2024] Open
Abstract
Genetically diverse simian arteriviruses (simarteriviruses) naturally infect geographically and phylogenetically diverse monkeys, and cross-species transmission and emergence are of considerable concern. Characterization of most simarteriviruses beyond sequence analysis has not been possible because the viruses fail to propagate in the laboratory. We attempted to isolate 4 simarteriviruses, Kibale red colobus virus 1, Pebjah virus, simian hemorrhagic fever virus, and Southwest baboon virus 1, by inoculating an immortalized grivet cell line (known to replicate simian hemorrhagic fever virus), primary macaque cells, macrophages derived from macaque induced pluripotent stem cells, and mice engrafted with macaque CD34+-enriched hematopoietic stem cells. The combined effort resulted in successful virus isolation; however, no single approach was successful for all 4 simarteriviruses. We describe several approaches that might be used to isolate additional simarteriviruses for phenotypic characterization. Our results will expedite laboratory studies of simarteriviruses to elucidate virus-host interactions, assess zoonotic risk, and develop medical countermeasures.
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Flies AS, Flies EJ, Fountain-Jones NM, Musgrove RE, Hamede RK, Philips A, Perrott MRF, Dunowska M. Wildlife nidoviruses: biology, epidemiology, and disease associations of selected nidoviruses of mammals and reptiles. mBio 2023; 14:e0071523. [PMID: 37439571 PMCID: PMC10470586 DOI: 10.1128/mbio.00715-23] [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] [Indexed: 07/14/2023] Open
Abstract
Wildlife is the source of many emerging infectious diseases. Several viruses from the order Nidovirales have recently emerged in wildlife, sometimes with severe consequences for endangered species. The order Nidovirales is currently classified into eight suborders, three of which contain viruses of vertebrates. Vertebrate coronaviruses (suborder Cornidovirineae) have been extensively studied, yet the other major suborders have received less attention. The aim of this minireview was to summarize the key findings from the published literature on nidoviruses of vertebrate wildlife from two suborders: Arnidovirineae and Tornidovirineae. These viruses were identified either during investigations of disease outbreaks or through molecular surveys of wildlife viromes, and include pathogens of reptiles and mammals. The available data on key biological features, disease associations, and pathology are presented, in addition to data on the frequency of infections among various host populations, and putative routes of transmission. While nidoviruses discussed here appear to have a restricted in vivo host range, little is known about their natural life cycle. Observational field-based studies outside of the mortality events are needed to facilitate an understanding of the virus-host-environment interactions that lead to the outbreaks. Laboratory-based studies are needed to understand the pathogenesis of diseases caused by novel nidoviruses and their evolutionary histories. Barriers preventing research progress include limited funding and the unavailability of virus- and host-specific reagents. To reduce mortalities in wildlife and further population declines, proactive development of expertise, technologies, and networks should be developed. These steps would enable effective management of future outbreaks and support wildlife conservation.
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Affiliation(s)
- Andrew S. Flies
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Emily J. Flies
- School of Natural Sciences, University of Tasmania, Hobart, Tasmania, Australia
- Healthy Landscapes Research Group, University of Tasmania, Hobart, Tasmania, Australia
| | | | - Ruth E. Musgrove
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Rodrigo K. Hamede
- School of Natural Sciences, University of Tasmania, Hobart, Tasmania, Australia
| | - Annie Philips
- Natural Resources and Environment Tasmania, Hobart, Tasmania, Australia
| | | | - Magdalena Dunowska
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
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3
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A Review on Zoonotic Pathogens Associated with Non-Human Primates: Understanding the Potential Threats to Humans. Microorganisms 2023; 11:microorganisms11020246. [PMID: 36838210 PMCID: PMC9964884 DOI: 10.3390/microorganisms11020246] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/07/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
Non-human primates (NHP) share a close relationship with humans due to a genetic homology of 75-98.5%. NHP and humans have highly similar tissue structures, immunity, physiology, and metabolism and thus often can act as hosts to the same pathogens. Agriculture, meat consumption habits, tourism development, religious beliefs, and biological research have led to more extensive and frequent contact between NHPs and humans. Deadly viruses, such as rabies virus, herpes B virus, Marburg virus, Ebola virus, human immunodeficiency virus, and monkeypox virus can be transferred from NHP to humans. Similarly, herpes simplex virus, influenza virus, and yellow fever virus can be transmitted to NHP from humans. Infectious pathogens, including viruses, bacteria, and parasites, can affect the health of both primates and humans. A vast number of NHP-carrying pathogens exhibit a risk of transmission to humans. Therefore, zoonotic infectious diseases should be evaluated in future research. This article reviews the research evidence, diagnostic methods, prevention, and treatment measures that may be useful in limiting the spread of several common viral pathogens via NHP and providing ideas for preventing zoonotic diseases with epidemic potential.
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Warren CJ, Yu S, Peters DK, Barbachano-Guerrero A, Yang Q, Burris BL, Worwa G, Huang IC, Wilkerson GK, Goldberg TL, Kuhn JH, Sawyer SL. Primate hemorrhagic fever-causing arteriviruses are poised for spillover to humans. Cell 2022; 185:3980-3991.e18. [PMID: 36182704 PMCID: PMC9588614 DOI: 10.1016/j.cell.2022.09.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 06/22/2022] [Accepted: 09/12/2022] [Indexed: 01/26/2023]
Abstract
Simian arteriviruses are endemic in some African primates and can cause fatal hemorrhagic fevers when they cross into primate hosts of new species. We find that CD163 acts as an intracellular receptor for simian hemorrhagic fever virus (SHFV; a simian arterivirus), a rare mode of virus entry that is shared with other hemorrhagic fever-causing viruses (e.g., Ebola and Lassa viruses). Further, SHFV enters and replicates in human monocytes, indicating full functionality of all of the human cellular proteins required for viral replication. Thus, simian arteriviruses in nature may not require major adaptations to the human host. Given that at least three distinct simian arteriviruses have caused fatal infections in captive macaques after host-switching, and that humans are immunologically naive to this family of viruses, development of serology tests for human surveillance should be a priority.
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Affiliation(s)
- Cody J Warren
- BioFrontiers Institute, Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80303, USA
| | - Shuiqing Yu
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA
| | - Douglas K Peters
- BioFrontiers Institute, Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80303, USA
| | - Arturo Barbachano-Guerrero
- BioFrontiers Institute, Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80303, USA
| | - Qing Yang
- BioFrontiers Institute, Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80303, USA
| | - Bridget L Burris
- Department of Comparative Medicine, Michale E. Keeling Center for Comparative Medicine and Research, The University of Texas MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Gabriella Worwa
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA
| | - I-Chueh Huang
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA
| | - Gregory K Wilkerson
- Department of Comparative Medicine, Michale E. Keeling Center for Comparative Medicine and Research, The University of Texas MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Tony L Goldberg
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Jens H Kuhn
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA.
| | - Sara L Sawyer
- BioFrontiers Institute, Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80303, USA.
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Cai Y, Yu S, Fang Y, Bollinger L, Li Y, Lauck M, Postnikova EN, Mazur S, Johnson RF, Finch CL, Radoshitzky SR, Palacios G, Friedrich TC, Goldberg TL, O’Connor DH, Jahrling PB, Kuhn JH. Development and Characterization of a cDNA-Launch Recombinant Simian Hemorrhagic Fever Virus Expressing Enhanced Green Fluorescent Protein: ORF 2b' Is Not Required for In Vitro Virus Replication. Viruses 2021; 13:v13040632. [PMID: 33917085 PMCID: PMC8067702 DOI: 10.3390/v13040632] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/23/2021] [Accepted: 03/30/2021] [Indexed: 12/26/2022] Open
Abstract
Simian hemorrhagic fever virus (SHFV) causes acute, lethal disease in macaques. We developed a single-plasmid cDNA-launch infectious clone of SHFV (rSHFV) and modified the clone to rescue an enhanced green fluorescent protein-expressing rSHFV-eGFP that can be used for rapid and quantitative detection of infection. SHFV has a narrow cell tropism in vitro, with only the grivet MA-104 cell line and a few other grivet cell lines being susceptible to virion entry and permissive to infection. Using rSHFV-eGFP, we demonstrate that one cricetid rodent cell line and three ape cell lines also fully support SHFV replication, whereas 55 human cell lines, 11 bat cell lines, and three rodent cells do not. Interestingly, some human and other mammalian cell lines apparently resistant to SHFV infection are permissive after transfection with the rSHFV-eGFP cDNA-launch plasmid. To further demonstrate the investigative potential of the infectious clone system, we introduced stop codons into eight viral open reading frames (ORFs). This approach suggested that at least one ORF, ORF 2b’, is dispensable for SHFV in vitro replication. Our proof-of-principle experiments indicated that rSHFV-eGFP is a useful tool for illuminating the understudied molecular biology of SHFV.
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Affiliation(s)
- Yingyun Cai
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA; (Y.C.); (S.Y.); (L.B.); (E.N.P.); (S.M.); (R.F.J.); (C.L.F.); (P.B.J.)
| | - Shuiqing Yu
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA; (Y.C.); (S.Y.); (L.B.); (E.N.P.); (S.M.); (R.F.J.); (C.L.F.); (P.B.J.)
| | - Ying Fang
- College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA; (Y.F.); (Y.L.)
| | - Laura Bollinger
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA; (Y.C.); (S.Y.); (L.B.); (E.N.P.); (S.M.); (R.F.J.); (C.L.F.); (P.B.J.)
| | - Yanhua Li
- College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA; (Y.F.); (Y.L.)
| | - Michael Lauck
- Department of Pathology and Laboratory Medicine, School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WI 53705, USA; (M.L.); (T.C.F.); (D.H.O.)
| | - Elena N. Postnikova
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA; (Y.C.); (S.Y.); (L.B.); (E.N.P.); (S.M.); (R.F.J.); (C.L.F.); (P.B.J.)
| | - Steven Mazur
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA; (Y.C.); (S.Y.); (L.B.); (E.N.P.); (S.M.); (R.F.J.); (C.L.F.); (P.B.J.)
| | - Reed F. Johnson
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA; (Y.C.); (S.Y.); (L.B.); (E.N.P.); (S.M.); (R.F.J.); (C.L.F.); (P.B.J.)
- Emerging Infectious Pathogens Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA
| | - Courtney L. Finch
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA; (Y.C.); (S.Y.); (L.B.); (E.N.P.); (S.M.); (R.F.J.); (C.L.F.); (P.B.J.)
| | - Sheli R. Radoshitzky
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA; (S.R.R.); (G.P.)
| | - Gustavo Palacios
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702, USA; (S.R.R.); (G.P.)
| | - Thomas C. Friedrich
- Department of Pathology and Laboratory Medicine, School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WI 53705, USA; (M.L.); (T.C.F.); (D.H.O.)
| | - Tony L. Goldberg
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin–Madison, Madison, WI 53706, USA;
| | - David H. O’Connor
- Department of Pathology and Laboratory Medicine, School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WI 53705, USA; (M.L.); (T.C.F.); (D.H.O.)
- Wisconsin National Primate Research Center, University of Wisconsin–Madison, Madison, WI 53715, USA
| | - Peter B. Jahrling
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA; (Y.C.); (S.Y.); (L.B.); (E.N.P.); (S.M.); (R.F.J.); (C.L.F.); (P.B.J.)
- Emerging Infectious Pathogens Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA
| | - Jens H. Kuhn
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA; (Y.C.); (S.Y.); (L.B.); (E.N.P.); (S.M.); (R.F.J.); (C.L.F.); (P.B.J.)
- Correspondence: ; Tel.: +1-301-631-7245
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Clinical Characterization of Host Response to Simian Hemorrhagic Fever Virus Infection in Permissive and Refractory Hosts: A Model for Determining Mechanisms of VHF Pathogenesis. Viruses 2019; 11:v11010067. [PMID: 30650570 PMCID: PMC6356329 DOI: 10.3390/v11010067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/27/2018] [Accepted: 01/11/2019] [Indexed: 12/18/2022] Open
Abstract
Simian hemorrhagic fever virus (SHFV) causes a fulminant and typically lethal viral hemorrhagic fever (VHF) in macaques (Cercopithecinae: Macaca spp.) but causes subclinical infections in patas monkeys (Cercopithecinae: Erythrocebus patas). This difference in disease course offers a unique opportunity to compare host responses to infection by a VHF-causing virus in biologically similar susceptible and refractory animals. Patas and rhesus monkeys were inoculated side-by-side with SHFV. Unlike the severe disease observed in rhesus monkeys, patas monkeys developed a limited clinical disease characterized by changes in complete blood counts, serum chemistries, and development of lymphadenopathy. Viral RNA was measurable in circulating blood 2 days after exposure, and its duration varied by species. Infectious virus was detected in terminal tissues of both patas and rhesus monkeys. Varying degrees of overlap in changes in serum concentrations of interferon (IFN)-γ, monocyte chemoattractant protein (MCP)-1, and interleukin (IL)-6 were observed between patas and rhesus monkeys, suggesting the presence of common and species-specific cytokine responses to infection. Similarly, quantitative immunohistochemistry of livers from terminal monkeys and whole blood flow cytometry revealed varying degrees of overlap in changes in macrophages, natural killer cells, and T-cells. The unexpected degree of overlap in host response suggests that relatively small subsets of a host's response to infection may be responsible for driving hemorrhagic fever pathogenesis. Furthermore, comparative SHFV infection in patas and rhesus monkeys offers an experimental model to characterize host⁻response mechanisms associated with viral hemorrhagic fever and evaluate pan-viral hemorrhagic fever countermeasures.
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7
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Buechler C, Semler M, Baker DA, Newman C, Cornish JP, Chavez D, Guerra B, Lanford R, Brasky K, Kuhn JH, Johnson RF, O'Connor DH, Bailey AL. Subclinical Infection of Macaques and Baboons with A Baboon Simarterivirus. Viruses 2018; 10:v10120701. [PMID: 30544677 PMCID: PMC6316555 DOI: 10.3390/v10120701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/05/2018] [Accepted: 12/06/2018] [Indexed: 02/06/2023] Open
Abstract
Simarteriviruses (Arteriviridae: Simarterivirinae) are commonly found at high titers in the blood of African monkeys but do not cause overt disease in these hosts. In contrast, simarteriviruses cause severe disease in Asian macaques upon accidental or experimental transmission. Here, we sought to better understand the host-dependent drivers of simarterivirus pathogenesis by infecting olive baboons (n = 4) and rhesus monkeys (n = 4) with the simarterivirus Southwest baboon virus 1 (SWBV-1). Surprisingly, none of the animals in our study showed signs of disease following SWBV-1 inoculation. Three animals (two rhesus monkeys and one olive baboon) became infected and sustained high levels of SWBV-1 viremia for the duration of the study. The course of SWBV-1 infection was highly predictable: plasma viremia peaked between 1 × 107 and 1 × 108 vRNA copies/mL at 3–10 days post-inoculation, which was followed by a relative nadir and then establishment of a stable set-point between 1 × 106 and 1 × 107 vRNA copies/mL for the remainder of the study (56 days). We characterized cellular and antibody responses to SWBV-1 infection in these animals, demonstrating that macaques and baboons mount similar responses to SWBV-1 infection, yet these responses are ineffective at clearing SWBV-1 infection. SWBV-1 sequencing revealed the accumulation of non-synonymous mutations in a region of the genome that corresponds to an immunodominant epitope in the simarterivirus major envelope glycoprotein GP5, which likely contribute to viral persistence by enabling escape from host antibodies.
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Affiliation(s)
- Connor Buechler
- Department of Pathology and Laboratory Medicine, University of Wisconsin⁻Madison, Madison, WI 53711, USA.
- Wisconsin National Primate Research Center, Madison, WI 53711, USA..
| | - Matthew Semler
- Department of Pathology and Laboratory Medicine, University of Wisconsin⁻Madison, Madison, WI 53711, USA.
- Wisconsin National Primate Research Center, Madison, WI 53711, USA..
| | - David A Baker
- Department of Pathology and Laboratory Medicine, University of Wisconsin⁻Madison, Madison, WI 53711, USA.
- Wisconsin National Primate Research Center, Madison, WI 53711, USA..
| | - Christina Newman
- Department of Pathology and Laboratory Medicine, University of Wisconsin⁻Madison, Madison, WI 53711, USA.
- Wisconsin National Primate Research Center, Madison, WI 53711, USA..
| | - Joseph P Cornish
- Emerging Viral Pathogens Section, Laboratory of Immunoregulation, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Frederick, MD 20896, USA.
| | - Deborah Chavez
- Texas Biomedical Research Institute, Southwest National Primate Research Center, San Antonio, TX 78227, USA.
| | - Bernadette Guerra
- Texas Biomedical Research Institute, Southwest National Primate Research Center, San Antonio, TX 78227, USA.
| | - Robert Lanford
- Texas Biomedical Research Institute, Southwest National Primate Research Center, San Antonio, TX 78227, USA.
| | - Kathy Brasky
- Texas Biomedical Research Institute, Southwest National Primate Research Center, San Antonio, TX 78227, USA.
| | - Jens H Kuhn
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD 21702, USA.
| | - Reed F Johnson
- Emerging Viral Pathogens Section, Laboratory of Immunoregulation, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Frederick, MD 20896, USA.
| | - David H O'Connor
- Department of Pathology and Laboratory Medicine, University of Wisconsin⁻Madison, Madison, WI 53711, USA.
- Wisconsin National Primate Research Center, Madison, WI 53711, USA..
| | - Adam L Bailey
- Department of Pathology and Laboratory Medicine, University of Wisconsin⁻Madison, Madison, WI 53711, USA.
- Wisconsin National Primate Research Center, Madison, WI 53711, USA..
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St. Louis, MO 63110, USA.
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Di H, Morantz EK, Sadhwani H, Madden JC, Brinton MA. Insertion position as well as the inserted TRS and gene sequences differentially affect the retention of foreign gene expression by simian hemorrhagic fever virus (SHFV). Virology 2018; 525:150-160. [PMID: 30286427 DOI: 10.1016/j.virol.2018.09.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 09/18/2018] [Accepted: 09/19/2018] [Indexed: 12/26/2022]
Abstract
Recombinant SHFV infectious cDNA clones expressing a foreign gene from an additional sg mRNA were constructed. Two 3' genomic region sites, between ORF4' and ORF2b and between ORF4 and ORF5, were utilized for insertion of the myxoma M013 gene with a C-terminal V5 tag followed by one of the three inserted transcription regulatory sequences (TRS), TRS2', TRS4' or TRS7. M013 insertion at the ORF4'/ORF2b site but not the ORF4/ORF5 site generated progeny virus but only the recombinant virus with an inserted TRS2' retained the entire M013 gene through passage four. Insertion of an auto-fluorescent protein gene, iLOV, with an inserted TRS2' at the ORF4'/ORF2b site, generated viable progeny virus. iLOV expression was maintained through passage eight. Although regulation of SHFV subgenomic RNA synthesis is complex, the ORF4'/ORF2b site, which is located between the two sets of minor structural proteins, is able to tolerate foreign gene insertion.
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Affiliation(s)
- Han Di
- Department of Biology, Georgia State University, Atlanta, GA 30303, United States
| | - Esther K Morantz
- Department of Biology, Georgia State University, Atlanta, GA 30303, United States
| | - Heena Sadhwani
- Department of Biology, Georgia State University, Atlanta, GA 30303, United States
| | - Joseph C Madden
- Department of Biology, Georgia State University, Atlanta, GA 30303, United States
| | - Margo A Brinton
- Department of Biology, Georgia State University, Atlanta, GA 30303, United States.
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9
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Expanded subgenomic mRNA transcriptome and coding capacity of a nidovirus. Proc Natl Acad Sci U S A 2017; 114:E8895-E8904. [PMID: 29073030 DOI: 10.1073/pnas.1706696114] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Members of the order Nidovirales express their structural protein ORFs from a nested set of 3' subgenomic mRNAs (sg mRNAs), and for most of these ORFs, a single genomic transcription regulatory sequence (TRS) was identified. Nine TRSs were previously reported for the arterivirus Simian hemorrhagic fever virus (SHFV). In the present study, which was facilitated by next-generation sequencing, 96 SHFV body TRSs were identified that were functional in both infected MA104 cells and macaque macrophages. The abundance of sg mRNAs produced from individual TRSs was consistent over time in the two different cell types. Most of the TRSs are located in the genomic 3' region, but some are in the 5' ORF1a/1b region and provide alternative sources of nonstructural proteins. Multiple functional TRSs were identified for the majority of the SHFV 3' ORFs, and four previously identified TRSs were found not to be the predominant ones used. A third of the TRSs generated sg mRNAs with variant leader-body junction sequences. Sg mRNAs encoding E', GP2, or ORF5a as their 5' ORF as well as sg mRNAs encoding six previously unreported alternative frame ORFs or 14 previously unreported C-terminal ORFs of known proteins were also identified. Mutation of the start codon of two C-terminal ORFs in an infectious clone reduced virus yield. Mass spectrometry detected one previously unreported protein and suggested translation of some of the C-terminal ORFs. The results reveal the complexity of the transcriptional regulatory mechanism and expanded coding capacity for SHFV, which may also be characteristic of other nidoviruses.
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10
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Within-Host Evolution of Simian Arteriviruses in Crab-Eating Macaques. J Virol 2017; 91:JVI.02231-16. [PMID: 27974564 DOI: 10.1128/jvi.02231-16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 12/03/2016] [Indexed: 02/06/2023] Open
Abstract
Simian arteriviruses are a diverse clade of viruses infecting captive and wild nonhuman primates. We recently reported that Kibale red colobus virus 1 (KRCV-1) causes a mild and self-limiting disease in experimentally infected crab-eating macaques, while simian hemorrhagic fever virus (SHFV) causes lethal viral hemorrhagic fever. Here we characterize how these viruses evolved during replication in cell culture and in experimentally infected macaques. During passage in cell culture, 68 substitutions that were localized in open reading frames (ORFs) likely associated with host cell entry and exit became fixed in the KRCV-1 genome. However, we did not detect any strong signatures of selection during replication in macaques. We uncovered patterns of evolution that were distinct from those observed in surveys of wild red colobus monkeys, suggesting that these species may exert different adaptive challenges for KRCV-1. During SHFV infection, we detected signatures of selection on ORF 5a and on a small subset of sites in the genome. Overall, our data suggest that patterns of evolution differ markedly among simian arteriviruses and among host species. IMPORTANCE Certain RNA viruses can cross species barriers and cause disease in new hosts. Simian arteriviruses are a diverse group of related viruses that infect captive and wild nonhuman primates, with associated disease severity ranging from apparently asymptomatic infections to severe, viral hemorrhagic fevers. We infected nonhuman primate cell cultures and then crab-eating macaques with either simian hemorrhagic fever virus (SHFV) or Kibale red colobus virus 1 (KRCV-1) and assessed within-host viral evolution. We found that KRCV-1 quickly acquired a large number of substitutions in its genome during replication in cell culture but that evolution in macaques was limited. In contrast, we detected selection focused on SHFV ORFs 5a and 5, which encode putative membrane proteins. These patterns suggest that in addition to diverse pathogenic phenotypes, these viruses may also exhibit distinct patterns of within-host evolution both in vitro and in vivo.
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11
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Bailey AL, Lauck M, Ghai RR, Nelson CW, Heimbruch K, Hughes AL, Goldberg TL, Kuhn JH, Jasinska AJ, Freimer NB, Apetrei C, O'Connor DH. Arteriviruses, Pegiviruses, and Lentiviruses Are Common among Wild African Monkeys. J Virol 2016; 90:6724-6737. [PMID: 27170760 PMCID: PMC4944300 DOI: 10.1128/jvi.00573-16] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/06/2016] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Nonhuman primates (NHPs) are a historically important source of zoonotic viruses and are a gold-standard model for research on many human pathogens. However, with the exception of simian immunodeficiency virus (SIV) (family Retroviridae), the blood-borne viruses harbored by these animals in the wild remain incompletely characterized. Here, we report the discovery and characterization of two novel simian pegiviruses (family Flaviviridae) and two novel simian arteriviruses (family Arteriviridae) in wild African green monkeys from Zambia (malbroucks [Chlorocebus cynosuros]) and South Africa (vervet monkeys [Chlorocebus pygerythrus]). We examine several aspects of infection, including viral load, genetic diversity, evolution, and geographic distribution, as well as host factors such as age, sex, and plasma cytokines. In combination with previous efforts to characterize blood-borne RNA viruses in wild primates across sub-Saharan Africa, these discoveries demonstrate that in addition to SIV, simian pegiviruses and simian arteriviruses are widespread and prevalent among many African cercopithecoid (i.e., Old World) monkeys. IMPORTANCE Primates are an important source of viruses that infect humans and serve as an important laboratory model of human virus infection. Here, we discover two new viruses in African green monkeys from Zambia and South Africa. In combination with previous virus discovery efforts, this finding suggests that these virus types are widespread among African monkeys. Our analysis suggests that one of these virus types, the simian arteriviruses, may have the potential to jump between different primate species and cause disease. In contrast, the other virus type, the pegiviruses, are thought to reduce the disease caused by human immunodeficiency virus (HIV) in humans. However, we did not observe a similar protective effect in SIV-infected African monkeys coinfected with pegiviruses, possibly because SIV causes little to no disease in these hosts.
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Affiliation(s)
- Adam L Bailey
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Wisconsin National Primate Research Center, Madison, Wisconsin, USA
| | - Michael Lauck
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Wisconsin National Primate Research Center, Madison, Wisconsin, USA
| | - Ria R Ghai
- Odum School of Ecology, University of Georgia, Athens, Georgia, USA
| | - Chase W Nelson
- Department of Biological Sciences, University of South Carolina, Columbia, South Carolina, USA
| | - Katelyn Heimbruch
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Wisconsin National Primate Research Center, Madison, Wisconsin, USA
| | - Austin L Hughes
- Department of Biological Sciences, University of South Carolina, Columbia, South Carolina, USA
| | - Tony L Goldberg
- Wisconsin National Primate Research Center, Madison, Wisconsin, USA
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, Wisconsin, 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
| | - Anna J Jasinska
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, California, USA
| | - Nelson B Freimer
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, California, USA
| | - Cristian Apetrei
- Center for Vaccine Research, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - David H O'Connor
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Wisconsin National Primate Research Center, Madison, Wisconsin, USA
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12
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Yú S, Caì Y, Lyons C, Johnson RF, Postnikova E, Mazur S, Johnson JC, Radoshitzky SR, Bailey AL, Lauck M, Goldberg TL, O’Connor DH, Jahrling PB, Friedrich TC, Kuhn JH. Specific Detection of Two Divergent Simian Arteriviruses Using RNAscope In Situ Hybridization. PLoS One 2016; 11:e0151313. [PMID: 26963736 PMCID: PMC4786270 DOI: 10.1371/journal.pone.0151313] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 02/26/2016] [Indexed: 12/19/2022] Open
Abstract
Simian hemorrhagic fever (SHF) is an often lethal disease of Asian macaques. Simian hemorrhagic fever virus (SHFV) is one of at least three distinct simian arteriviruses that can cause SHF, but pathogenesis studies using modern methods have been scarce. Even seemingly straightforward studies, such as examining viral tissue and cell tropism in vivo, have been difficult to conduct due to the absence of standardized SHFV-specific reagents. Here we report the establishment of an in situ hybridization assay for the detection of SHFV and distantly related Kibale red colobus virus 1 (KRCV-1) RNA in cell culture. In addition, we detected SHFV RNA in formalin-fixed, paraffin-embedded tissues from an infected rhesus monkey (Macaca mulatta). The assay is easily performed and can clearly distinguish between SHFV and KRCV-1. Thus, if further developed, this assay may be useful during future studies evaluating the mechanisms by which a simian arterivirus with a restricted cell tropism can cause a lethal nonhuman primate disease similar in clinical presentation to human viral hemorrhagic fevers.
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Affiliation(s)
- Shuǐqìng Yú
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
| | - Yíngyún Caì
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
| | - Cassandra Lyons
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
| | - Reed F. Johnson
- Emerging Infectious Pathogens Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
| | - Elena Postnikova
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
| | - Steven Mazur
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
| | - Joshua C. Johnson
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
| | - Sheli R. Radoshitzky
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, Maryland, United States of America
| | - Adam L. Bailey
- University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Michael Lauck
- University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Tony L. Goldberg
- University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - David H. O’Connor
- University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Peter B. Jahrling
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
- Emerging Infectious Pathogens Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
| | - Thomas C. Friedrich
- University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Jens H. Kuhn
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
- * E-mail:
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13
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Abstract
UNLABELLED Simian hemorrhagic fever (SHF) is a highly lethal disease in captive macaques. Three distinct arteriviruses are known etiological agents of past SHF epizootics, but only one, simian hemorrhagic fever virus (SHFV), has been isolated in cell culture. The natural reservoir(s) of the three viruses have yet to be identified, but African nonhuman primates are suspected. Eleven additional divergent simian arteriviruses have been detected recently in diverse and apparently healthy African cercopithecid monkeys. Here, we report the successful isolation in MARC-145 cell culture of one of these viruses, Kibale red colobus virus 1 (KRCV-1), from serum of a naturally infected red colobus (Procolobus [Piliocolobus] rufomitratus tephrosceles) sampled in Kibale National Park, Uganda. Intramuscular (i.m.) injection of KRCV-1 into four cynomolgus macaques (Macaca fascicularis) resulted in a self-limiting nonlethal disease characterized by depressive behavioral changes, disturbance in coagulation parameters, and liver enzyme elevations. In contrast, i.m. injection of SHFV resulted in typical lethal SHF characterized by mild fever, lethargy, lymphoid depletion, lymphoid and hepatocellular necrosis, low platelet counts, increased liver enzyme concentrations, coagulation abnormalities, and increasing viral loads. As hypothesized based on the genetic and presumed antigenic distance between KRCV-1 and SHFV, all four macaques that had survived KRCV-1 injection died of SHF after subsequent SHFV injection, indicating a lack of protective heterotypic immunity. Our data indicate that SHF is a disease of macaques that in all likelihood can be caused by a number of distinct simian arteriviruses, although with different severity depending on the specific arterivirus involved. Consequently, we recommend that current screening procedures for SHFV in primate-holding facilities be modified to detect all known simian arteriviruses. IMPORTANCE Outbreaks of simian hemorrhagic fever (SHF) have devastated captive Asian macaque colonies in the past. SHF is caused by at least three viruses of the family Arteriviridae: simian hemorrhagic fever virus (SHFV), simian hemorrhagic encephalitis virus (SHEV), and Pebjah virus (PBJV). Nine additional distant relatives of these three viruses were recently discovered in apparently healthy African nonhuman primates. We hypothesized that all simian arteriviruses are potential causes of SHF. To test this hypothesis, we inoculated cynomolgus macaques with a highly divergent simian arterivirus (Kibale red colobus virus 1 [KRCV-1]) from a wild Ugandan red colobus. Despite being only distantly related to red colobuses, all of the macaques developed disease. In contrast to SHFV-infected animals, KRCV-1-infected animals survived after a mild disease presentation. Our study advances the understanding of an important primate disease. Furthermore, our data indicate a need to include the full diversity of simian arteriviruses in nonhuman primate SHF screening assays.
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Historical Outbreaks of Simian Hemorrhagic Fever in Captive Macaques Were Caused by Distinct Arteriviruses. J Virol 2015; 89:8082-7. [PMID: 25972539 DOI: 10.1128/jvi.01046-15] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 05/07/2015] [Indexed: 02/04/2023] Open
Abstract
Simian hemorrhagic fever (SHF) is lethal for macaques. Based on clinical presentation and serological diagnosis, all reported SHF outbreaks were thought to be caused by different strains of the same virus, simian hemorrhagic fever virus (SHFV; Arteriviridae). Here we show that the SHF outbreaks in Sukhumi in 1964 and in Alamogordo in 1989 were caused not by SHFV but by two novel divergent arteriviruses. Our results indicate that multiple divergent simian arteriviruses can cause SHF.
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15
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Brinton MA, Di H, Vatter HA. Simian hemorrhagic fever virus: Recent advances. Virus Res 2014; 202:112-9. [PMID: 25455336 PMCID: PMC4449332 DOI: 10.1016/j.virusres.2014.11.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 11/19/2014] [Accepted: 11/21/2014] [Indexed: 11/28/2022]
Abstract
SHFV induces hemorrhagic fever in macaques but not in African nonhuman primates. SHFV infection of macaque but not baboon cells induces proinflammatory cytokines. Unique N- and C-terminal genes encoded by SHFV were functionally analyzed. PLP1γ can cleave at upstream sites as well as at the expected downstream site. Eight minor structural proteins are required for infectious virus production.
The simian hemorrhagic fever virus (SHFV) genome differs from those of other members of the family Arteriviridae in encoding three papain-like one proteases (PLP1α, PLP1β and PLP1γ) at the 5′ end and two adjacent sets of four minor structural proteins at the 3′ end. The catalytic Cys and His residues and cleavage sites for each of the SHFV PLP1s were predicted and their functionality was tested in in vitro transcription/translation reactions done with wildtype or mutant polyprotein constructs. Mass spectrometry analyses of selected autoproteolytic products confirmed cleavage site locations. The catalytic Cys of PLP1α is unusual in being adjacent to an Ala instead of a Typ. PLP1γ cleaves at both downstream and upstream sites. Intermediate precursor and alternative cleavage products were detected in the in vitro transcription/translation reactions but only the three mature nsp1 proteins were detected in SHFV-infected MA104 cell lysates with SHFV nsp1 protein-specific antibodies. The duplicated sets of SHFV minor structural proteins were predicted to be functionally redundant. A stable, full-length, infectious SHFV-LVR cDNA clone was constructed and a set of mutant infectious clones was generated each with the start codon of one of the minor structural proteins mutated. All eight of the minor structural proteins were found to be required for production of infectious extracellular virus. SHFV causes a fatal hemorrhagic fever in macaques but asymptomatic, persistent infections in natural hosts such as baboons. SHFV infections were compared in macrophages and myeloid dendritic cells from baboons and macaques. Virus yields were higher from macaque cells than from baboon cells. Macrophage cultures from the two types of animals differed dramatically in the percentage of cells infected. In contrast, similar percentages of myeloid dendritic cells were infected but virus replication was efficient in the macaque cells but inefficient in the baboon cells. SHFV infection induced the production of pro-inflammatory cytokines, including IL-1β, IL-6, IL-12/23(p40), TNF-α and MIP-1α, in macaque cells but not baboon cells.
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Affiliation(s)
| | - Han Di
- Georgia State University, Atlanta, GA, USA
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