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Sunwoo SY, García-Belmonte R, Walczak M, Vigara-Astillero G, Kim DM, Szymankiewicz K, Kochanowski M, Liu L, Tark D, Podgórska K, Revilla Y, Pérez-Núñez D. Deletion of MGF505-2R Gene Activates the cGAS-STING Pathway Leading to Attenuation and Protection against Virulent African Swine Fever Virus. Vaccines (Basel) 2024; 12:407. [PMID: 38675789 PMCID: PMC11054455 DOI: 10.3390/vaccines12040407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
African swine fever virus (ASFV) is the etiological agent causing African swine fever (ASF), affecting domestic pigs and wild boar, which is currently the biggest animal epidemic in the world and a major threat to the swine sector. At present, some safety concerns about using LAVs against ASFV still exist despite a commercial vaccine licensed in Vietnam. Therefore, the efforts to identify virulence factors and their mechanisms, as well as to generate new vaccine prototypes, are of major interest. In this work, we have identified the MGF505-2R gene product as an inhibitor of the cGAS/STING pathway, specifically through its interaction with STING protein, controlling IFN-β production. In addition, immunization of a recombinant virus lacking this gene, Arm/07-ΔMGF505-2R, resulted in complete attenuation, demonstrating its involvement in ASFV virulence. Finally, immunization with Arm/07-ΔMGF505-2R induced the generation of antibodies and proved to be partially protective against virulent ASFV strains. These results identify MGF505-2R, as well as its mechanism of action, as a gene contributing to understanding the molecular mechanisms of ASFV virulence, which will be of great value in the design of future vaccine prototypes.
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Affiliation(s)
- Sun-Young Sunwoo
- Careside Co., Ltd., Sagimakgol-ro 45 Beongil 14, Seongnam-si 13209, Gyeonggi-do, Republic of Korea;
| | - Raquel García-Belmonte
- Microbes in Health and Welfare Department, Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, c/Nicolás Cabrera 1, 28049 Madrid, Spain; (R.G.-B.); (G.V.-A.)
| | - Marek Walczak
- Department of Swine Diseases, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, Poland; (M.W.); (K.S.); (M.K.); (K.P.)
| | - Gonzalo Vigara-Astillero
- Microbes in Health and Welfare Department, Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, c/Nicolás Cabrera 1, 28049 Madrid, Spain; (R.G.-B.); (G.V.-A.)
| | - Dae-Min Kim
- Laboratory for Infectious Disease Prevention, Korea Zoonosis Research Institute, Jeonbuk National University, 79 Gobong-ro, Ma-dong, Iksan 54531, Jeollabuk-do, Republic of Korea; (D.-M.K.); (D.T.)
| | - Krzesimir Szymankiewicz
- Department of Swine Diseases, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, Poland; (M.W.); (K.S.); (M.K.); (K.P.)
| | - Maciej Kochanowski
- Department of Swine Diseases, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, Poland; (M.W.); (K.S.); (M.K.); (K.P.)
| | - Lihong Liu
- Department of Microbiology, Swedish Veterinary Agency, 751 89 Uppsala, Sweden;
| | - Dongseob Tark
- Laboratory for Infectious Disease Prevention, Korea Zoonosis Research Institute, Jeonbuk National University, 79 Gobong-ro, Ma-dong, Iksan 54531, Jeollabuk-do, Republic of Korea; (D.-M.K.); (D.T.)
| | - Katarzyna Podgórska
- Department of Swine Diseases, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, Poland; (M.W.); (K.S.); (M.K.); (K.P.)
| | - Yolanda Revilla
- Microbes in Health and Welfare Department, Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, c/Nicolás Cabrera 1, 28049 Madrid, Spain; (R.G.-B.); (G.V.-A.)
| | - Daniel Pérez-Núñez
- Microbes in Health and Welfare Department, Centro de Biologia Molecular Severo Ochoa (CBM), CSIC-UAM, c/Nicolás Cabrera 1, 28049 Madrid, Spain; (R.G.-B.); (G.V.-A.)
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Ko YS, Tark D, Moon SH, Kim DM, Lee TG, Bae DY, Sunwoo SY, Oh Y, Cho HS. Alteration of the Gut Microbiota in Pigs Infected with African Swine Fever Virus. Vet Sci 2023; 10:vetsci10050360. [PMID: 37235443 DOI: 10.3390/vetsci10050360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/12/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
The factors that influence the pathogenicity of African swine fever (ASF) are still poorly understood, and the host's immune response has been indicated as crucial. Although an increasing number of studies have shown that gut microbiota can control the progression of diseases caused by viral infections, it has not been characterized how the ASF virus (ASFV) changes a pig's gut microbiome. This study analyzed the dynamic changes in the intestinal microbiome of pigs experimentally infected with the high-virulence ASFV genotype II strain (N = 4) or mock strain (N = 3). Daily fecal samples were collected from the pigs and distributed into the four phases (before infection, primary phase, clinical phase, and terminal phase) of ASF based on the individual clinical features of the pigs. The total DNA was extracted and the V4 region of the 16 s rRNA gene was amplified and sequenced on the Illumina platform. Richness indices (ACE and Chao1) were significantly decreased in the terminal phase of ASF infection. The relative abundances of short-chain-fatty-acids-producing bacteria, such as Ruminococcaceae, Roseburia, and Blautia, were decreased during ASFV infection. On the other hand, the abundance of Proteobacteria and Spirochaetes increased. Furthermore, predicted functional analysis using PICRUSt resulted in a significantly reduced abundance of 15 immune-related pathways in the ASFV-infected pigs. This study provides evidence for further understanding the ASFV-pig interaction and suggests that changes in gut microbiome composition during ASFV infection may be associated with the status of immunosuppression.
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Affiliation(s)
- Young-Seung Ko
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Dongseob Tark
- Korea Zoonosis Research Institute, Jeonbuk National University, Iksan 54531, Republic of Korea
| | - Sung-Hyun Moon
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Dae-Min Kim
- Korea Zoonosis Research Institute, Jeonbuk National University, Iksan 54531, Republic of Korea
| | - Taek Geun Lee
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Da-Yun Bae
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
| | | | - Yeonsu Oh
- Institute of Veterinary Science, College of Veterinary Medicine, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ho-Seong Cho
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea
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Madden DW, Sunwoo SY, Gaudreault NN, Trujillo JD, Morozov I, Gallardo C, Richt JA. Development of a chromatographic lateral flow immunoassay for detection of African swine fever virus antigen in blood. Animal Diseases 2022. [DOI: 10.1186/s44149-022-00045-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractAfrican swine fever (ASF) is a highly lethal disease of domestic and wild swine caused by African swine fever virus (ASFV). The disease currently circulates in Africa, Europe, Asia and on the island of Hispaniola. The ongoing epizootics in Europe and Asia have produced millions of animal deaths and severe economic losses. No effective vaccine is available for ASF, making rapid and accurate detection of ASFV essential for disease mitigation strategies. Currently available diagnostics for ASFV possess significant limitations related to assay performance, deployability, and/or turn-around time; therefore there is an unmet need for pen-side diagnostic tests with sufficient sensitivity and specificity. A chromatographic lateral flow immunoassay (LFIA) was developed for the detection of ASFV antigen in EDTA-treated whole blood using monoclonal antibodies targeting the viral p30 protein. The assay requires only water to perform and provides results in 25 min, making it well-suited for field use. The LFIA was capable of detecting genotype I and genotype II strains of ASFV in EDTA blood from experimentally infected pigs at varying time-points after infection, though it was unable to detect a genotype X ASFV strain. Diagnostic sensitivity correlated with clinical disease severity, body temperature, and viral DNA levels, and was over 90% in animals showing moderate to severe ASF-related symptoms after challenge with virulent genotype II virus. The LFIA also showed a robust diagnostic specificity of over 98%, which is essential to field testing for a high consequence to foregin animal disease. The LFIA targeting the viral p30 protein can reliably detect ASFV in whole blood from animals showing moderate to severe clinical signs of infection with virulent genotype I and II isolates, making it a promising candidate for use as a field-deployable antigen detection assay. Additional evaluation using field samples and different virus strains is required to further assess the utility of this rapid diagnostic test.
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Pérez-Núñez D, Sunwoo SY, García-Belmonte R, Kim C, Vigara-Astillero G, Riera E, Kim DM, Jeong J, Tark D, Ko YS, You YK, Revilla Y. Recombinant African Swine Fever Virus Arm/07/CBM/c2 Lacking CD2v and A238L Is Attenuated and Protects Pigs against Virulent Korean Paju Strain. Vaccines (Basel) 2022; 10:vaccines10121992. [PMID: 36560402 PMCID: PMC9784410 DOI: 10.3390/vaccines10121992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/17/2022] [Accepted: 11/20/2022] [Indexed: 11/25/2022] Open
Abstract
African swine fever (ASF) is an obligated declaration swine disease, provoking farm isolation measures and the closing of affected country boarders. ASF virus (ASFV) is currently the cause of a pandemic across China and Eurasia. By the end of 2019, ASF was detected in nine EU Member States: Bulgaria, Romania, Slovakia, Estonia, Hungary, Latvia, Lithuania, Poland and Belgium. The affected area of the EU extended progressively, moving mostly in a southwestern direction (EFSA). Inactivated and/or subunit vaccines have proven to fail since certain virus replication is needed for protection. LAVs are thus the most realistic option, which must be safe, effective and industrially scalable. We here generated a vaccine prototype from the Arm/07/CBM/c2 genotype II strain, in which we have deleted the EP402R (CD2v) and A238L genes by CRISPR/Cas9 in COS-1 cells, without detectable further genetic changes. The successful immunization of pigs has proven this vaccine to be safe and fully protective against the circulating Korean Paju genotype II strain, opening the possibility of a new vaccine on the market in the near future.
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Affiliation(s)
- Daniel Pérez-Núñez
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, c/Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Sun-Young Sunwoo
- Careside Co., Ltd., Sagimakgol-ro 45 Beongil 14, Seongnam-si 13209, Gyeonggi-do, Republic of Korea
| | - Raquel García-Belmonte
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, c/Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Chansong Kim
- Careside Co., Ltd., Sagimakgol-ro 45 Beongil 14, Seongnam-si 13209, Gyeonggi-do, Republic of Korea
| | - Gonzalo Vigara-Astillero
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, c/Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Elena Riera
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, c/Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Dae-min Kim
- Laboratory for infectious Disease Prevention, Korea Zoonosis Research Institute, Jeonbuk National University, 79 Gobong-ro, Ma-dong, Iksan 54531, Jeollabuk-do, Republic of Korea
| | - Jiyun Jeong
- Careside Co., Ltd., Sagimakgol-ro 45 Beongil 14, Seongnam-si 13209, Gyeonggi-do, Republic of Korea
| | - Dongseob Tark
- Laboratory for infectious Disease Prevention, Korea Zoonosis Research Institute, Jeonbuk National University, 79 Gobong-ro, Ma-dong, Iksan 54531, Jeollabuk-do, Republic of Korea
| | - Young-Seung Ko
- Laboratory for infectious Disease Prevention, Korea Zoonosis Research Institute, Jeonbuk National University, 79 Gobong-ro, Ma-dong, Iksan 54531, Jeollabuk-do, Republic of Korea
| | - Young-Kook You
- Careside Co., Ltd., Sagimakgol-ro 45 Beongil 14, Seongnam-si 13209, Gyeonggi-do, Republic of Korea
| | - Yolanda Revilla
- Microbes in Health and Welfare Department, Centro de Biología Molecular Severo Ochoa, CSIC-UAM, c/Nicolás Cabrera 1, 28049 Madrid, Spain
- Correspondence: ; Tel.: +34-911964570
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5
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Morozov I, Monath TP, Meekins DA, Trujillo JD, Sunwoo SY, Urbaniak K, Kim IJ, Narayanan SK, Indran SV, Ma W, Wilson WC, O'Connor C, Dubey S, Troth SP, Coller BA, Nichols R, Martin BK, Feldmann H, Richt JA. High dose of vesicular stomatitis virus-vectored Ebola virus vaccine causes vesicular disease in swine without horizontal transmission. Emerg Microbes Infect 2021; 10:651-663. [PMID: 33719915 PMCID: PMC8023602 DOI: 10.1080/22221751.2021.1903343] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
ABSTRACTThe recent impact of Ebola virus disease (EVD) on public health in Africa clearly demonstrates the need for a safe and efficacious vaccine to control outbreaks and mitigate its threat to global health. ERVEBO® is an effective recombinant Vesicular Stomatitis Virus (VSV)-vectored Ebola virus vaccine (VSV-EBOV) that was approved by the FDA and EMA in late 2019 for use in prevention of EVD. Since the parental virus VSV, which was used to construct VSV-EBOV, is pathogenic for livestock and the vaccine virus may be shed at low levels by vaccinated humans, widespread deployment of the vaccine requires investigation into its infectivity and transmissibility in VSV-susceptible livestock species. We therefore performed a comprehensive clinical analysis of the VSV-EBOV vaccine virus in swine to determine its infectivity and potential for transmission. A high dose of VSV-EBOV resulted in VSV-like clinical signs in swine, with a proportion of pigs developing ulcerative vesicular lesions at the nasal injection site and feet. Uninoculated contact control pigs co-mingled with VSV-EBOV-inoculated pigs did not become infected or display any clinical signs of disease, indicating the vaccine is not readily transmissible to naïve pigs during prolonged close contact. In contrast, virulent wild-type VSV Indiana had a shorter incubation period and was transmitted to contact control pigs. These results indicate that the VSV-EBOV vaccine causes vesicular illness in swine when administered at a high dose. Moreover, the study demonstrates the VSV-EBOV vaccine is not readily transmitted to uninfected pigs, encouraging its safe use as an effective human vaccine.
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Affiliation(s)
- Igor Morozov
- Department of Diagnostic Medicine/Pathobiology, Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Thomas P Monath
- Bioprotection Systems, Inc, a subsidiary of NewLink Genetics Corp, Ames, IA, USA
| | - David A Meekins
- Department of Diagnostic Medicine/Pathobiology, Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Jessie D Trujillo
- Department of Diagnostic Medicine/Pathobiology, Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Sun-Young Sunwoo
- Department of Diagnostic Medicine/Pathobiology, Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Kinga Urbaniak
- Department of Diagnostic Medicine/Pathobiology, Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - In Joong Kim
- Department of Diagnostic Medicine/Pathobiology, Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Sanjeev K Narayanan
- Department of Diagnostic Medicine/Pathobiology, Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Sabarish V Indran
- Department of Diagnostic Medicine/Pathobiology, Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Wenjun Ma
- Department of Diagnostic Medicine/Pathobiology, Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - William C Wilson
- Center for Grain and Animal Health Research, Arthropod-Borne Animal Diseases Research Unit, Agricultural Research Service, United States Department of Agriculture, Manhattan, KS, USA
| | | | | | | | | | - Richard Nichols
- Bioprotection Systems, Inc, a subsidiary of NewLink Genetics Corp, Ames, IA, USA
| | - Brian K Martin
- Bioprotection Systems, Inc, a subsidiary of NewLink Genetics Corp, Ames, IA, USA
| | - Heinz Feldmann
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Juergen A Richt
- Department of Diagnostic Medicine/Pathobiology, Center of Excellence for Emerging and Zoonotic Animal Diseases (CEEZAD), College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
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Lee J, Wang L, Palinski R, Walsh T, He D, Li Y, Wu R, Lang Y, Sunwoo SY, Richt JA, Ma W. Comparison of Pathogenicity and Transmissibility of Influenza B and D Viruses in Pigs. Viruses 2019; 11:E905. [PMID: 31569752 PMCID: PMC6832242 DOI: 10.3390/v11100905] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/13/2019] [Accepted: 09/23/2019] [Indexed: 12/23/2022] Open
Abstract
Influenza viruses are important pathogens causing respiratory disease in humans and animals. In contrast to influenza A virus (IAV) that can infect a wide range of animal species, other influenza viruses, including influenza B virus (IBV), influenza C virus (ICV), and influenza D virus (IDV) have a limited host range. Swine can be infected with all four different genera of influenza viruses. IAV infection of pigs causes the well-known swine influenza that poses significant threats to human and animal health. However, influenza virus infection of pigs with IBV, ICV, and IDV are not well-characterized. Herein, we compared pathogenicity of IBV and IDV using intratracheal and intranasal infection of pigs, which are IAV seropositive, and commingled naïve pigs with the infected animals to determine their transmissibility. Both viruses caused fever and some lung lesions, replicated in the lungs of infected pigs, but only IDV transmitted to the contact animals. Although IBV and IDV displayed differing levels of replication in the respiratory tract of infected pigs, no significant differences in pathogenicity of both viruses were observed. These results indicate that both IBV and IDV can replicate, and are pathogenic in pigs.
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Affiliation(s)
- Jinhwa Lee
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Liping Wang
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Rachel Palinski
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Tim Walsh
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Dongchang He
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Yonghai Li
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Rui Wu
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Yuekun Lang
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Sun-Young Sunwoo
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Juergen A Richt
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Wenjun Ma
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
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Pérez-Núñez D, Sunwoo SY, Sánchez EG, Haley N, García-Belmonte R, Nogal M, Morozov I, Madden D, Gaudreault NN, Mur L, Shivanna V, Richt JA, Revilla Y. Evaluation of a viral DNA-protein immunization strategy against African swine fever in domestic pigs. Vet Immunol Immunopathol 2018; 208:34-43. [PMID: 30712790 DOI: 10.1016/j.vetimm.2018.11.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 10/25/2018] [Accepted: 11/01/2018] [Indexed: 12/22/2022]
Abstract
African swine fever virus (ASFV) causes serious disease in domestic pigs for which there is no vaccine currently available. ASFV is a large DNA virus that encodes for more than 150 proteins, thus making the identification of viral antigens that induce a protective immune response difficult. Based on the functional roles of several ASFV proteins found in previous studies, we selected combinations of ASFV recombinant proteins and pcDNAs-expressing ASFV genes, to analyze their ability to induce humoral and cellular immune responses in pigs. Pigs were immunized using a modified prime-boost approach with combinations of previously selected viral DNA and proteins, resulting in induction of antibodies and specific cell-mediated immune response, measured by IFN-γ ELISpots. The ability of antibodies from pigs immunized with various combinations of ASFV-specific antigens to neutralize infection in vitro, and antigen-specific activation of the cellular immune response were analyzed.
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Affiliation(s)
- Daniel Pérez-Núñez
- CBMSO-CSIC-UAM, C/ Nicolás Cabrera 1, Campus de Cantoblanco, Madrid, 28049, Spain
| | - Sun-Young Sunwoo
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, K218 Mosier hall, 1800 Denison Ave, Manhattan, KS, 66506, USA
| | - Elena G Sánchez
- CBMSO-CSIC-UAM, C/ Nicolás Cabrera 1, Campus de Cantoblanco, Madrid, 28049, Spain
| | - Nicholas Haley
- Department of Microbiology and Immunology, Arizona College of Osteopathic Medicine, Midwestern University, Glendale, AZ, 85308, USA
| | | | - Marisa Nogal
- CBMSO-CSIC-UAM, C/ Nicolás Cabrera 1, Campus de Cantoblanco, Madrid, 28049, Spain
| | - Igor Morozov
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, K218 Mosier hall, 1800 Denison Ave, Manhattan, KS, 66506, USA
| | - Daniel Madden
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, K218 Mosier hall, 1800 Denison Ave, Manhattan, KS, 66506, USA
| | - Natasha N Gaudreault
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, K218 Mosier hall, 1800 Denison Ave, Manhattan, KS, 66506, USA
| | - Lina Mur
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, K218 Mosier hall, 1800 Denison Ave, Manhattan, KS, 66506, USA
| | - Vinay Shivanna
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, K218 Mosier hall, 1800 Denison Ave, Manhattan, KS, 66506, USA
| | - Juergen A Richt
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, K218 Mosier hall, 1800 Denison Ave, Manhattan, KS, 66506, USA.
| | - Yolanda Revilla
- CBMSO-CSIC-UAM, C/ Nicolás Cabrera 1, Campus de Cantoblanco, Madrid, 28049, Spain.
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Sunwoo SY, Schotsaert M, Morozov I, Davis AS, Li Y, Lee J, McDowell C, Meade P, Nachbagauer R, García-Sastre A, Ma W, Krammer F, Richt JA. Erratum: Sunwoo, S.-Y. et al. A Universal Influenza Virus Vaccine Candidate Tested in a Pig Vaccination-Infection Model in the Presence of Maternal Antibodies. Vaccines 2018, 6(3), 64. Vaccines (Basel) 2018; 6:vaccines6040080. [PMID: 30486441 PMCID: PMC6313909 DOI: 10.3390/vaccines6040080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 11/19/2018] [Indexed: 11/25/2022] Open
Affiliation(s)
- Sun-Young Sunwoo
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Michael Schotsaert
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Igor Morozov
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Anne Sally Davis
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Yuhao Li
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Jinhwa Lee
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Chester McDowell
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Philip Meade
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Raffael Nachbagauer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Wenjun Ma
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Juergen A Richt
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
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Sunwoo SY, Schotsaert M, Morozov I, Davis AS, Li Y, Lee J, McDowell C, Meade P, Nachbagauer R, García-Sastre A, Ma W, Krammer F, Richt JA. A Universal Influenza Virus Vaccine Candidate Tested in a Pig Vaccination-Infection Model in the Presence of Maternal Antibodies. Vaccines (Basel) 2018; 6:vaccines6030064. [PMID: 30223475 PMCID: PMC6161263 DOI: 10.3390/vaccines6030064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/07/2018] [Accepted: 09/11/2018] [Indexed: 12/11/2022] Open
Abstract
The antigenically conserved hemagglutinin stalk region is a target for universal influenza virus vaccines since antibodies against it can provide broad protection against influenza viruses of different subtypes. We tested a universal influenza virus vaccination regimen based on sequential immunization with chimeric hemagglutinin (HA) containing viruses in a swine influenza virus pig model with maternal antibodies against pandemic H1N1. Vaccines were administered as live attenuated virus or inactivated influenza virus split vaccine (+/− Emulsigen adjuvant). As controls, we included groups that received trivalent inactivated influenza vaccine that contained pandemic H1N1 antigens, inactivated adjuvanted H1N2 vaccine (control group for vaccine associated enhanced respiratory disease in the pig model) or mock-vaccination. No induction of H1 head or stalk-specific antibody responses was observed upon vaccination, while responses against H3 and influenza B HA were elicited in the group vaccinated with the trivalent vaccine. Four weeks post vaccination, pigs were intratracheally challenged with pandemic H1N1 virus and euthanized 5 days after challenge. Despite the lack of detectable anti-stalk immunity, the chimeric hemagglutinin vaccine resulted in better clinical outcomes compared to control groups.
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Affiliation(s)
- Sun-Young Sunwoo
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Michael Schotsaert
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Igor Morozov
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Anne Sally Davis
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Yuhao Li
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Jinhwa Lee
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Chester McDowell
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Philip Meade
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Raffael Nachbagauer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Wenjun Ma
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Juergen A Richt
- Department of Diagnostic Medicine & Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
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