1
|
Casares-Jimenez M, Rivero-Juarez A, Lopez-Lopez P, Montes ML, Navarro-Soler R, Peraire J, Espinosa N, Alemán-Valls MR, Garcia-Garcia T, Caballero-Gomez J, Corona-Mata D, Perez-Valero I, Ulrich RG, Rivero A. Rat hepatitis E virus ( Rocahepevirus ratti) in people living with HIV. Emerg Microbes Infect 2024; 13:2295389. [PMID: 38095070 PMCID: PMC10763910 DOI: 10.1080/22221751.2023.2295389] [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: 07/17/2023] [Accepted: 12/12/2023] [Indexed: 12/31/2023]
Abstract
Rat hepatitis E virus (ratHEV; species Rocahepevirus ratti) is considered a newly emerging cause of acute hepatitis of zoonotic origin. ratHEV infection of people living with HIV (PLWH) might portend a worse, as with hepatitis E virus (HEV; species Paslahepevirus balayani), and consequently this group may constitute a high-risk population. We aimed to evaluate the prevalence of ratHEV by measuring viral RNA and specific IgG antibodies in a large Spanish cohort of PLWH. Multicentre study conducted in Spain evaluating PLWHIV included in the Spanish AIDS Research Network (CoRIS). Patients were evaluated for ratHEV infection using PCR at baseline and anti-ratHEV IgG by dot blot analysis to evaluate exposure to ratHEV strains. Patients with detectable ratHEV RNA were followed-up to evaluate persistence of viremia and IgG seroconversion. Eight-hundred and forty-two individuals were tested. A total of 9 individuals showed specific IgG antibodies against ratHEV, supposing a prevalence of 1.1 (95% CI; 0.5%-2.1%). Of these, only one was reactive to HEV IgG antibodies by ELISA. One sample was positive for ratHEV RNA (prevalence of infection: 0.1%; 95% CI: 0.08%-0.7%). The case was a man who had sex with men exhibiting a slightly increased alanine transaminase level (49 IU/L) as only biochemical alteration. In the follow-up, the patients showed undetectable ratHEV RNA and seroconversion to specific ratHEV IgG antibodies. Our study shows that ratHEV is geographical broadly distributed in Spain, representing a potential zoonotic threat.
Collapse
Affiliation(s)
- María Casares-Jimenez
- Infectious Diseases Unit, Reina Sofia University Hospital, Maimonides Instituto for Biomedical Research (IMIBIC), University of Cordoba (UCO), Cordoba, Spain
| | - Antonio Rivero-Juarez
- Infectious Diseases Unit, Reina Sofia University Hospital, Maimonides Instituto for Biomedical Research (IMIBIC), University of Cordoba (UCO), Cordoba, Spain
- CIBERINFEC, ISCIII – CIBER on Infectious Diseases, Carlos III Health Institute, Madrid, Spain
| | - Pedro Lopez-Lopez
- Infectious Diseases Unit, Reina Sofia University Hospital, Maimonides Instituto for Biomedical Research (IMIBIC), University of Cordoba (UCO), Cordoba, Spain
- CIBERINFEC, ISCIII – CIBER on Infectious Diseases, Carlos III Health Institute, Madrid, Spain
| | - María Luisa Montes
- CIBERINFEC, ISCIII – CIBER on Infectious Diseases, Carlos III Health Institute, Madrid, Spain
- HIV Unit, Internal Medicine Service, La Paz University Hospital, IdiPAZ, Madrid, Spain
| | | | - Joaquín Peraire
- CIBERINFEC, ISCIII – CIBER on Infectious Diseases, Carlos III Health Institute, Madrid, Spain
- Infectious Diseases Unit, Joan XXIII University Hospital, IISPV, Rovira i Virgili University, Tarragona, Spain
| | - Nuria Espinosa
- Infectious Diseases and Clinical Microbiology Unit, Virgen del Rocío University Hospital, CSIC, IbIS, University of Seville, Seville, Spain
| | | | - Tránsito Garcia-Garcia
- Immunogenomic and Molecular Pathogenesis, Zoonoses and Emerging diseases Unit (ENZOEM), Genetic Department, University of Cordoba, Cordoba, Spain
| | - Javier Caballero-Gomez
- Infectious Diseases Unit, Reina Sofia University Hospital, Maimonides Instituto for Biomedical Research (IMIBIC), University of Cordoba (UCO), Cordoba, Spain
- CIBERINFEC, ISCIII – CIBER on Infectious Diseases, Carlos III Health Institute, Madrid, Spain
- Animal Health Unit, Zoonoses and Emerging diseases Unit (ENZOEM), University of Cordoba, Cordoba, Spain
| | - Diana Corona-Mata
- Infectious Diseases Unit, Reina Sofia University Hospital, Maimonides Instituto for Biomedical Research (IMIBIC), University of Cordoba (UCO), Cordoba, Spain
- CIBERINFEC, ISCIII – CIBER on Infectious Diseases, Carlos III Health Institute, Madrid, Spain
| | - Ignacio Perez-Valero
- Infectious Diseases Unit, Reina Sofia University Hospital, Maimonides Instituto for Biomedical Research (IMIBIC), University of Cordoba (UCO), Cordoba, Spain
- CIBERINFEC, ISCIII – CIBER on Infectious Diseases, Carlos III Health Institute, Madrid, Spain
| | - Rainer G. Ulrich
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald-Insel Riems, Germany
- German Centre for Infection Research (DZIF), partner site Hamburg-Lübeck-Borstel-Riems, Greifswald-Insel Riems, Germany
| | - Antonio Rivero
- Infectious Diseases Unit, Reina Sofia University Hospital, Maimonides Instituto for Biomedical Research (IMIBIC), University of Cordoba (UCO), Cordoba, Spain
- CIBERINFEC, ISCIII – CIBER on Infectious Diseases, Carlos III Health Institute, Madrid, Spain
| |
Collapse
|
2
|
Zemella A, Beer K, Ramm F, Wenzel D, Düx A, Merkel K, Calvignac-Spencer S, Stern D, Dorner MB, Dorner BG, Widulin N, Schnalke T, Walter C, Wolbert A, Schmid BG, Mankertz A, Santibanez S. Vaccine-induced neutralizing antibodies bind to the H protein of a historical measles virus. Int J Med Microbiol 2024; 314:151607. [PMID: 38367508 DOI: 10.1016/j.ijmm.2024.151607] [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: 12/20/2023] [Revised: 01/18/2024] [Accepted: 01/18/2024] [Indexed: 02/19/2024] Open
Abstract
Measles is a highly contagious airborne viral disease. It can lead to serious complications and death and is preventable by vaccination. The live-attenuated measles vaccine (LAMV) derived from a measles virus (MV) isolated in 1954 has been in use globally for six decades and protects effectively by providing a durable humoral and cell-mediated immunity. Our study addresses the temporal stability of epitopes on the viral surface glycoprotein hemagglutinin (H) which is the major target of MV-neutralizing antibodies. We investigated the binding of seven vaccine-induced MV-H-specific monoclonal antibodies (mAbs) to cell-free synthesized MV-H proteins derived from the H gene sequences obtained from a lung specimen of a fatal case of measles pneumonia in 1912 and an isolate from a current case. The binding of four out of seven mAbs to the H protein of both MV strains provides evidence of epitopes that are stable for more than 100 years. The binding of the universally neutralizing mAbs RKI-MV-12b and RKI-MV-34c to the H protein of the 1912 MV suggests the long-term stability of highly conserved epitopes on the MV surface.
Collapse
Affiliation(s)
- Anne Zemella
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, D-14476 Potsdam, Germany
| | - Kerstin Beer
- WHO Measles/Rubella European RRL and NRC Measles, Mumps, Rubella, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany
| | - Franziska Ramm
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, D-14476 Potsdam, Germany
| | - Dana Wenzel
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Am Mühlenberg 13, D-14476 Potsdam, Germany
| | - Ariane Düx
- Viral Evolution, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany; Helmholtz Institute for One Health, Helmholtz-Centre for Infection Research (HZI), 17489 Greifswald, Germany
| | - Kevin Merkel
- Viral Evolution, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany
| | - Sebastien Calvignac-Spencer
- Viral Evolution, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany; Helmholtz Institute for One Health, Helmholtz-Centre for Infection Research (HZI), 17489 Greifswald, Germany; Faculty of Mathematics and Natural Sciences, University of Greifswald, 17489 Greifswald, Germany
| | - Daniel Stern
- Biological Toxins (ZBS3), Centre for Biological Threats and Special Pathogens, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany
| | - Martin B Dorner
- Biological Toxins (ZBS3), Centre for Biological Threats and Special Pathogens, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany
| | - Brigitte G Dorner
- Biological Toxins (ZBS3), Centre for Biological Threats and Special Pathogens, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany
| | | | | | - Cornelia Walter
- WHO Measles/Rubella European RRL and NRC Measles, Mumps, Rubella, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany
| | - Anne Wolbert
- WHO Measles/Rubella European RRL and NRC Measles, Mumps, Rubella, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany
| | - Bernhard G Schmid
- WHO Measles/Rubella European RRL and NRC Measles, Mumps, Rubella, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany
| | - Annette Mankertz
- WHO Measles/Rubella European RRL and NRC Measles, Mumps, Rubella, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany
| | - Sabine Santibanez
- WHO Measles/Rubella European RRL and NRC Measles, Mumps, Rubella, Robert Koch-Institut, Seestr. 10, D-13353 Berlin, Germany.
| |
Collapse
|
3
|
Tan J, Harlow J, Cecillon J, Nasheri N. Assessing the efficacy of different bead-based assays in capturing hepatitis E virus. J Virol Methods 2024; 324:114860. [PMID: 38061674 DOI: 10.1016/j.jviromet.2023.114860] [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: 07/04/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Hepatitis E virus (HEV) generally causes acute liver infection in humans and its transmission could be waterborne, foodborne, bloodborne, or zoonotic. To date, there is no standard method for the detection of HEV from food and environmental samples. Herein, we explored the possibility of using magnetic beads for the capture and detection of HEV. For this purpose, we employed Dynabeads M-270 Epoxy magnetic beads, coated with different monoclonal antibodies (mAbs) against HEV capsid protein, and the Nanotrap Microbiome A Particle magnetic beads, which are coated with chemical affinity baits, to capture HEV-3 particles in suspension. Viral RNA was extracted by heat-shock or QIAamp viral RNA kit and subjected to quantification using digital-droplet RT-PCR (ddRT-PCR). We demonstrated that the mAb-coupled Dynabeads and the Nanotrap particles, both were able to successfully capture HEV-3. The latter, however had lower limit of detection (<140gc compared with <1400 gc) and significantly higher extraction efficiency in comparison to the mAb-coupled Dynabeads (41.1% vs 8.8%). We have also observed that viral RNA extraction by heat-shock is less efficient compared to using highly denaturing reagents in QIAmp viral RNA extraction kit. As such, magnetic beads have the potential to be used to capture HEV virions for research and surveillance purposes.
Collapse
Affiliation(s)
- Jeremy Tan
- National Food Virology Reference Centre, Bureau of Microbial Hazards, Food Directorate, Health Canada, 251 Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, ON, Canada
| | - Jennifer Harlow
- National Food Virology Reference Centre, Bureau of Microbial Hazards, Food Directorate, Health Canada, 251 Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada
| | - Jonathon Cecillon
- National Food Virology Reference Centre, Bureau of Microbial Hazards, Food Directorate, Health Canada, 251 Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, ON, Canada
| | - Neda Nasheri
- National Food Virology Reference Centre, Bureau of Microbial Hazards, Food Directorate, Health Canada, 251 Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, ON, Canada.
| |
Collapse
|
4
|
Kichatova VS, Potemkin IA, Asadi Mobarkhan FA, Rumyantseva TD, Semenov SI, Kyuregyan KK, Mikhailov MI. Detection of antibodies to the hepatitis E virus in domestic reindeer ( Rangifer tarandus) in the Republic of Sakha (Yakutia). Vopr Virusol 2023; 68:549-556. [PMID: 38156570 DOI: 10.36233/0507-4088-206] [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: 11/09/2023] [Indexed: 12/30/2023]
Abstract
INTRODUCTION Although domestic pigs and wild boars are the main reservoir of zoonotic hepatitis E virus (HEV) genotypes in temperate countries, the presence of antibodies to HEV (anti-HEV) in the indigenous population of circumpolar territories, i.e. outside the habitat of wild and domestic pigs, indicates the presence of an alternative reservoir of the virus. Reindeer (Rangifer tarandus) may be a potential reservoir for HEV in the polar regions. The purpose of the study was to determine the prevalence of anti-HEV among domestic reindeer in the Republic of Sakha (Yakutia). MATERIALS AND METHODS Sera from 497 domestic reindeer from the Oymyakon (n = 425) and Ust-Yansky districts (n = 72) of the Republic of Sakha (Yakutia) were tested for anti-HEV. A commercial ELISA kit DS-ELISA-ANTI-HEV-G (Diagnostic Systems-Stolitsa LLC, Russia) was used for detection of anti-HEV IgG, but a rabbit polyclonal antibody against deer IgG labeled with horseradish peroxidase (KPL, USA) at a dilution of 1 : 100 in phosphate-buffered saline were used instead of the human specific conjugate from the kit. RESULTS The average detection rate of anti-HEV in reindeer sera was 15.5% (95% CI: 12.6-19.0%). The detection rate of anti-HEV significantly increased with age, from 3.5% (95% CI: 1.1-9.0%) in calves aged 3-6 months to 25.0% (95% CI: 1.6 -36.5%) in deer aged 2-4 years (p < 0.0001). From this age group, anti-HEV detection rates reached a plateau, not differing significantly between older age groups (p > 0.05). The average anti-HEV detection rate among reindeer 2 years of age and older was 19.0% (95% CI: 15.3-23.4%). There were no statistically significant differences in the frequency of anti-HEV detection between female and male reindeer, both among adult animals and among calves. CONCLUSION The observed anti-HEV detection rates among domestic reindeer in the Republic of Sakha (Yakutia) indicate that infection caused by HEV or an antigenically similar virus is common in these animals. The dynamics of antibody accumulation in the reindeer population indicates that infection apparently occurs during the first two years of life.
Collapse
Affiliation(s)
- V S Kichatova
- Central Research Institute of Epidemiology
- Mechnikov Research Institute of Vaccines and Sera
- Russian Medical Academy of Continuing Professional Education
| | - I A Potemkin
- Central Research Institute of Epidemiology
- Mechnikov Research Institute of Vaccines and Sera
- Russian Medical Academy of Continuing Professional Education
| | - F A Asadi Mobarkhan
- Central Research Institute of Epidemiology
- Mechnikov Research Institute of Vaccines and Sera
| | | | - S I Semenov
- North-Eastern Federal University named after. M.K. Ammosov
| | - K K Kyuregyan
- Central Research Institute of Epidemiology
- Mechnikov Research Institute of Vaccines and Sera
| | - M I Mikhailov
- Central Research Institute of Epidemiology
- Mechnikov Research Institute of Vaccines and Sera
| |
Collapse
|
5
|
Gremmel N, Keuling O, Eiden M, Groschup MH, Johne R, Becher P, Baechlein C. Hepatitis E virus neutralization by porcine serum antibodies. J Clin Microbiol 2023; 61:e0037323. [PMID: 37823649 PMCID: PMC10662371 DOI: 10.1128/jcm.00373-23] [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: 03/24/2023] [Accepted: 08/26/2023] [Indexed: 10/13/2023] Open
Abstract
The consumption of raw or undercooked meat products poses a serious risk for human hepatitis E virus (HEV) infections. In many high-income countries, domestic pigs and wild boars represent the main animal reservoirs for HEV and are usually identified by reverse transcription-PCR and antibody enzyme-linked immunosorbent assay (ELISA). In order to characterize the humoral immune response in more detail, a cell culture-based serum neutralization assay using a culture-adapted HEV strain was established here. Measurement of neutralizing antibodies was only possible after removing the viral quasi-envelope by detergent treatment. Serum samples of 343 wild boars from Northern Germany were first analyzed for anti-HEV IgG using an in-house ELISA, resulting in 19% positive samples. Subsequently, a subset of 41 representative samples was tested with the neutralization assay, and the results correlated well with those obtained by ELISA. Not only the human HEV strain 47832c but also two porcine HEV strains were shown to be neutralized by porcine serum antibodies. Neutralizing activity was also found in samples containing both HEV-specific antibodies and HEV RNA. Testing of serum samples derived from two experimentally infected domestic pigs showed a steep increase in neutralizing activity at 24 or 51 days post infection, dependent on the used infectious dose. The developed assay can be useful for characterization of the humoral immune response after HEV infection and for assessing the efficiency of HEV vaccine candidates.
Collapse
Affiliation(s)
- Nele Gremmel
- Department of Infectious Diseases, Institute of Virology, University of Veterinary Medicine, Hannover, Germany
| | - Oliver Keuling
- Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine, Hannover, Germany
| | - Martin Eiden
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald, Insel Riems, Germany
| | - Martin H. Groschup
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald, Insel Riems, Germany
| | - Reimar Johne
- Department of Biological Safety, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Paul Becher
- Department of Infectious Diseases, Institute of Virology, University of Veterinary Medicine, Hannover, Germany
| | - Christine Baechlein
- Department of Infectious Diseases, Institute of Virology, University of Veterinary Medicine, Hannover, Germany
| |
Collapse
|
6
|
Stunnenberg M, Huizen SCV, Swart A, Lodder WJ, Boxman ILA, Rutjes SA. Thermal Inactivation of Hepatitis E Virus in Pork Products Estimated with a Semiquantitative Infectivity Assay. Microorganisms 2023; 11:2451. [PMID: 37894109 PMCID: PMC10609450 DOI: 10.3390/microorganisms11102451] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
Hepatitis E virus genotype 3 (HEV-3) is a food-borne pathogen causative of hepatitis E infections in humans. In Europe, HEV-3 is mainly transmitted through the consumption of raw or undercooked pork. In order to determine the effectiveness of control measures that can be taken in the industry or by the consumer, it is pivotal to determine the infectivity of HEV present in pork products after thermal food-processing steps. First, we implemented a method for the detection of infectious HEV-3c and HEV-3e in a cell culture medium and in extracts from inoculated pork products. Next, we investigated the effect of the thermal inactivation of HEV by mimicking food-processing steps specific for dried sausage and liver homogenate matrices. After four weeks, HEV-inoculated dried sausage subjected to 21 °C or lower temperatures was still infectious. For the liver homogenate, the highest HEV-3c/e inactivation of the conditions tested was observed at 71 °C for five min or longer. Finally, our method was able to successfully detect and estimate viral loads of infectious HEV in naturally infected pig livers. Our data provide a basis for the future use of the quantitative microbial risk assessment of infectious HEV in pork products that are subjected to thermal food processing steps.
Collapse
Affiliation(s)
- Melissa Stunnenberg
- Laboratory for Zoonosis and Environmental Microbiology, Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA Bilthoven, The Netherlands
| | - Suzanne C van Huizen
- Laboratory for Zoonosis and Environmental Microbiology, Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA Bilthoven, The Netherlands
| | - Arno Swart
- Laboratory for Zoonosis and Environmental Microbiology, Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA Bilthoven, The Netherlands
| | - Willemijn J Lodder
- Laboratory for Zoonosis and Environmental Microbiology, Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA Bilthoven, The Netherlands
| | - Ingeborg L A Boxman
- National Reference Laboratory Food-Borne Viruses, Wageningen Food Safety Research (WFSR), Wageningen University and Research, P.O. Box 230, 6700 AE Wageningen, The Netherlands
| | - Saskia A Rutjes
- Laboratory for Zoonosis and Environmental Microbiology, Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA Bilthoven, The Netherlands
| |
Collapse
|
7
|
Ramm F, Dondapati SK, Trinh HA, Wenzel D, Walter RM, Zemella A, Kubick S. The Potential of Eukaryotic Cell-Free Systems as a Rapid Response to Novel Zoonotic Pathogens: Analysis of SARS-CoV-2 Viral Proteins. Front Bioeng Biotechnol 2022; 10:896751. [PMID: 35519622 PMCID: PMC9061942 DOI: 10.3389/fbioe.2022.896751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/01/2022] [Indexed: 11/13/2022] Open
Abstract
The ongoing pandemic caused by the novel coronavirus (SARS-CoV-2) has led to more than 445 million infections and the underlying disease, COVID-19, resulted in more than 6 million deaths worldwide. The scientific world is already predicting future zoonotic diseases. Hence, rapid response systems are needed to tackle future epidemics and pandemics. Here, we present the use of eukaryotic cell-free systems for the rapid response to novel zoonotic diseases represented by SARS-CoV-2. Non-structural, structural and accessory proteins encoded by SARS-CoV-2 were synthesized by cell-free protein synthesis in a fast and efficient manner. The inhibitory effect of the non-structural protein 1 on protein synthesis could be shown in vitro. Structural proteins were quantitatively detected by commercial antibodies, therefore facilitating cell-free systems for the validation of available antibodies. The cytotoxic envelope protein was characterized in electrophysiological planar lipid bilayer measurements. Hence, our study demonstrates the potential of eukaryotic cell-free systems as a rapid response mechanism for the synthesis, functional characterization and antibody validation against a viral pathogen.
Collapse
Affiliation(s)
- Franziska Ramm
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Srujan K. Dondapati
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Potsdam, Germany
| | - Hoai Anh Trinh
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Potsdam, Germany
- Department of Applied Biochemistry, Institute of Biotechnology, Technical University Berlin, Berlin, Germany
| | - Dana Wenzel
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Potsdam, Germany
| | - Ruben M. Walter
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Potsdam, Germany
- Department of Applied Biochemistry, Institute of Biotechnology, Technical University Berlin, Berlin, Germany
| | - Anne Zemella
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Potsdam, Germany
| | - Stefan Kubick
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), Branch Bioanalytics and Bioprocesses (IZI-BB), Potsdam, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
- Faculty of Health Sciences, Joint Faculty of the Brandenburg University of Technology Cottbus–Senftenberg, The Brandenburg Medical School Theodor Fontane, The University of Potsdam, Potsdam, Germany
- *Correspondence: Stefan Kubick,
| |
Collapse
|
8
|
Li Y, Yu P, Kessler AL, Shu J, Liu X, Liang Z, Liu J, Li Y, Li P, Wang L, Wang Y, Ma Z, Liu A, Wang L, Bruno MJ, de Man RA, Peppelenbosch MP, Buschow SI, Wang L, Wang Y, Pan Q. Hepatitis E virus infection activates NOD-like receptor family pyrin domain-containing 3 inflammasome antagonizing interferon response but therapeutically targetable. Hepatology 2022; 75:196-212. [PMID: 34392558 PMCID: PMC9299901 DOI: 10.1002/hep.32114] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/18/2021] [Accepted: 08/09/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS HEV infection is the most common cause of liver inflammation, but the pathogenic mechanisms remain largely unclear. We aim to explore whether HEV infection activates inflammasomes, crosstalk with antiviral interferon response, and the potential of therapeutic targeting. APPROACH AND RESULTS We measured IL-1β secretion, the hallmark of inflammasome activation, in serum of HEV-infected patients and rabbits, and in cultured macrophage cell lines and primary monocyte-derived macrophages. We found that genotypes 3 and 4 HEV infection in rabbits elevated IL-1β production. A profound increase of IL-1β secretion was further observed in HEV-infected patients (1,733 ± 1,234 pg/mL; n = 70) compared to healthy persons (731 ± 701 pg/mL; n = 70). Given that macrophages are the drivers of inflammatory response, we found that inoculation with infectious HEV particles robustly triggered NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome activation in primary macrophages and macrophage cell lines. We further revealed that the ORF2 capsid protein and the formed integral viral particles are responsible for activating inflammasome response. We also identified NF-κB signaling activation as a key upstream event of HEV-induced NLRP3 inflammasome response. Interestingly, inflammasome activation antagonizes interferon response to facilitate viral replication in macrophages. Pharmacological inhibitors and clinically used steroids can effectively target inflammasome activation. Combining steroids with ribavirin simultaneously inhibits HEV and inflammasome response without cross-interference. CONCLUSIONS HEV infection strongly activates NLRP3 inflammasome activation in macrophages, which regulates host innate defense and pathogenesis. Therapeutic targeting of NLRP3, in particular when combined with antiviral agents, represents a viable option for treating severe HEV infection.
Collapse
Affiliation(s)
- Yang Li
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Peifa Yu
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Amy L. Kessler
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Jingyi Shu
- Department of Microbiology and Infectious Disease CentreSchool of Basic Medical SciencesPeking University Health Science CentreBeijingChina
| | - Xiaoyan Liu
- Department of Pathology and HepatologyThe Fifth Medical Center of ChinesePLA General HospitalBeijingChina
| | - Zhaochao Liang
- Department of Microbiology and Infectious Disease CentreSchool of Basic Medical SciencesPeking University Health Science CentreBeijingChina
| | - Jiaye Liu
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Yunlong Li
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Pengfei Li
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Ling Wang
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Yining Wang
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Zhongren Ma
- Biomedical Research CenterNorthwest Minzu UniversityLanzhouChina
| | - Aixia Liu
- Department of Clinical LaboratoryThe Fifth Medical Center of ChinesePLA General HospitalBeijingChina
| | - Ling Wang
- Department of Microbiology and Infectious Disease CentreSchool of Basic Medical SciencesPeking University Health Science CentreBeijingChina
| | - Marco J. Bruno
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Robert A. de Man
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Maikel P. Peppelenbosch
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Sonja I. Buschow
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| | - Lin Wang
- Department of Microbiology and Infectious Disease CentreSchool of Basic Medical SciencesPeking University Health Science CentreBeijingChina
| | - Yijin Wang
- School of MedicineSouthern University of Science and TechnologyShenzhenChina
| | - Qiuwei Pan
- Department of Gastroenterology and HepatologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
| |
Collapse
|
9
|
Caballero-Gómez J, Rivero-Juarez A, Jurado-Tarifa E, Jiménez-Martín D, Jiménez-Ruiz E, Castro-Scholten S, Ulrich RG, López-López P, Rivero A, García-Bocanegra I. Serological and molecular survey of hepatitis E virus in cats and dogs in Spain. Transbound Emerg Dis 2021; 69:240-248. [PMID: 34951935 DOI: 10.1111/tbed.14437] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 12/04/2021] [Accepted: 12/21/2021] [Indexed: 11/29/2022]
Abstract
Hepatitis E virus (HEV) is an emerging zoonotic pathogen that is currently recognized as one of the major causes of acute human hepatitis worldwide. In Europe, the increasing number of hepatitis E cases is mainly associated with the consumption of animal food products or contact with infected animals. Dogs and cats have been suggested as a zoonotic source of HEV infection. The aim of this study was to assess Orthohepevirus circulation, including HEV-A, HEV-B and HEV-C species, in sympatric urban cats and dogs in southern Spain. Between 2017 and 2020, blood samples were collected from 144 stray cats and 152 dogs, both strays and pets. The presence of antibodies against HEV were tested using a double-antigen sandwich ELISA and seropositive samples were further analyzed by western blot. A RT-PCR was performed to detect RNA of Orthohepevirus species (HEV-A, HEV-B and HEV-C). A total of 19 (6.4%; 95%CI: 3.6-9.2) of the 296 animals tested showed anti-HEV antibodies by ELISA. Seropositivity was significantly higher in dogs (9.9%; 15/152; 95%CI: 5.1-14.6) than in cats (2.8%; 4/144; 95%CI: 0.1-5.5). Ten out of the 18 ELISA-positive animals that could be further analyzed by western blot, reacted against HEV-3 and/or HEV-C1 antigens, which suggest circulation of both genotypes in urban cats and dogs in the study area. However, HEV-A, HEV-B and HEV-C RNA was not detected in any of the tested sera. This is the first study to assess HEV circulation in both stray cats and dogs in Europe. Our results provide evidence of HEV exposure in sympatric urban cat and dog populations in southern Spain. Further studies are needed to determine the role of these species in the epidemiology of HEV. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Javier Caballero-Gómez
- Grupo de Investigación en Sanidad Animal y Zoonosis (GISAZ), Departamento de Sanidad Animal, Universidad de Córdoba, Córdoba, 14014, España.,Grupo de Virología Clínica y Zoonosis, Unidad de Enfermedades Infecciosas, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Universitario Reina Sofía, Universidad de Córdoba, Córdoba, 14004, España.,CIBERINFEC
| | - Antonio Rivero-Juarez
- Grupo de Virología Clínica y Zoonosis, Unidad de Enfermedades Infecciosas, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Universitario Reina Sofía, Universidad de Córdoba, Córdoba, 14004, España.,CIBERINFEC
| | - Estefanía Jurado-Tarifa
- Centro de Sanidad y Bienestar Animal (SBA), Empresa Municipal de Saneamiento de Córdoba (SADECO), Córdoba, 14005, España
| | - Débora Jiménez-Martín
- Grupo de Investigación en Sanidad Animal y Zoonosis (GISAZ), Departamento de Sanidad Animal, Universidad de Córdoba, Córdoba, 14014, España
| | - Elena Jiménez-Ruiz
- Centro de Sanidad y Bienestar Animal (SBA), Empresa Municipal de Saneamiento de Córdoba (SADECO), Córdoba, 14005, España
| | - Sabrina Castro-Scholten
- Grupo de Investigación en Sanidad Animal y Zoonosis (GISAZ), Departamento de Sanidad Animal, Universidad de Córdoba, Córdoba, 14014, España
| | - Rainer G Ulrich
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald-Insel Riems, 17493, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), partner site Hamburg-Lübeck-Borstel-Riems, Greifswald-Insel Riems, 17493, Germany
| | - Pedro López-López
- Grupo de Virología Clínica y Zoonosis, Unidad de Enfermedades Infecciosas, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Universitario Reina Sofía, Universidad de Córdoba, Córdoba, 14004, España.,CIBERINFEC
| | - Antonio Rivero
- Grupo de Virología Clínica y Zoonosis, Unidad de Enfermedades Infecciosas, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Universitario Reina Sofía, Universidad de Córdoba, Córdoba, 14004, España.,CIBERINFEC
| | - Ignacio García-Bocanegra
- Grupo de Investigación en Sanidad Animal y Zoonosis (GISAZ), Departamento de Sanidad Animal, Universidad de Córdoba, Córdoba, 14014, España.,CIBERINFEC
| |
Collapse
|
10
|
Cell Culture Isolation and Whole Genome Characterization of Hepatitis E Virus Strains from Wild Boars in Germany. Microorganisms 2021; 9:microorganisms9112302. [PMID: 34835427 PMCID: PMC8624179 DOI: 10.3390/microorganisms9112302] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/03/2021] [Accepted: 11/04/2021] [Indexed: 11/16/2022] Open
Abstract
Infection with hepatitis E virus (HEV) can cause acute and chronic hepatitis in humans. The HEV genotype 3 can be zoonotically transmitted from animals to humans, with wild boars representing an important reservoir species. Cell culture isolation of HEV is generally difficult and mainly described for human isolates so far. Here, five sera and five liver samples from HEV-RNA-positive wild boar samples were inoculated onto PLC/PRF/5 cells, incubated for 3 months and thereafter passaged for additional 6 weeks. As demonstrated by RT-qPCR, immunofluorescence and immune electron microscopy, virus was successfully isolated from two liver samples, which originally contained high HEV genome copy numbers. Both isolates showed slower growth than the culture-adapted HEV strain 47832c. In contrast to this strain, the isolated strains had no insertions in their hypervariable genome region. Next generation sequencing using an HEV sequence-enriched library enabled full genome sequencing. Strain Wb108/17 belongs to subtype 3f and strain Wb257/17 to a tentative novel subtype recently described in Italian wild boars. The results indicate that HEV can be successfully isolated in cell culture from wild boar samples containing high HEV genome copy numbers. The isolates may be used further to study the zoonotic potential of wild boar-derived HEV subtypes.
Collapse
|