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Emmenegger M, De Cecco E, Lamparter D, Jacquat RP, Riou J, Menges D, Ballouz T, Ebner D, Schneider MM, Morales IC, Doğançay B, Guo J, Wiedmer A, Domange J, Imeri M, Moos R, Zografou C, Batkitar L, Madrigal L, Schneider D, Trevisan C, Gonzalez-Guerra A, Carrella A, Dubach IL, Xu CK, Meisl G, Kosmoliaptsis V, Malinauskas T, Burgess-Brown N, Owens R, Hatch S, Mongkolsapaya J, Screaton GR, Schubert K, Huck JD, Liu F, Pojer F, Lau K, Hacker D, Probst-Müller E, Cervia C, Nilsson J, Boyman O, Saleh L, Spanaus K, von Eckardstein A, Schaer DJ, Ban N, Tsai CJ, Marino J, Schertler GF, Ebert N, Thiel V, Gottschalk J, Frey BM, Reimann RR, Hornemann S, Ring AM, Knowles TP, Puhan MA, Althaus CL, Xenarios I, Stuart DI, Aguzzi A. Continuous population-level monitoring of SARS-CoV-2 seroprevalence in a large European metropolitan region. iScience 2023; 26:105928. [PMID: 36619367 PMCID: PMC9811913 DOI: 10.1016/j.isci.2023.105928] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 12/18/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Effective public health measures against SARS-CoV-2 require granular knowledge of population-level immune responses. We developed a Tripartite Automated Blood Immunoassay (TRABI) to assess the IgG response against three SARS-CoV-2 proteins. We used TRABI for continuous seromonitoring of hospital patients and blood donors (n = 72'250) in the canton of Zurich from December 2019 to December 2020 (pre-vaccine period). We found that antibodies waned with a half-life of 75 days, whereas the cumulative incidence rose from 2.3% in June 2020 to 12.2% in mid-December 2020. A follow-up health survey indicated that about 10% of patients infected with wildtype SARS-CoV-2 sustained some symptoms at least twelve months post COVID-19. Crucially, we found no evidence of a difference in long-term complications between those whose infection was symptomatic and those with asymptomatic acute infection. The cohort of asymptomatic SARS-CoV-2-infected subjects represents a resource for the study of chronic and possibly unexpected sequelae.
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Affiliation(s)
- Marc Emmenegger
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Elena De Cecco
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - David Lamparter
- Health2030 Genome Center, 9 Chemin des Mines, 1202 Geneva, Switzerland
| | - Raphaël P.B. Jacquat
- Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
- Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - Julien Riou
- Institute of Social and Preventive Medicine, University of Bern, 3012 Bern, Switzerland
| | - Dominik Menges
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zürich, Switzerland
| | - Tala Ballouz
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zürich, Switzerland
| | - Daniel Ebner
- Target Discovery Institute, University of Oxford, Oxford OX3 7FZ, England
| | - Matthias M. Schneider
- Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
| | | | - Berre Doğançay
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Jingjing Guo
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Anne Wiedmer
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Julie Domange
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Marigona Imeri
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Rita Moos
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Chryssa Zografou
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Leyla Batkitar
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Lidia Madrigal
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Dezirae Schneider
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Chiara Trevisan
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | | | | | - Irina L. Dubach
- Division of Internal Medicine, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Catherine K. Xu
- Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
| | - Georg Meisl
- Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
| | - Vasilis Kosmoliaptsis
- Department of Surgery, Addenbrooke’s Hospital, University of Cambridge, Hills Road, Cambridge CB2 0QQ, UK
- NIHR Blood and Transplant Research Unit in Organ Donation and Transplantation, University of Cambridge, Hills Road, Cambridge CB2 0QQ, UK
| | - Tomas Malinauskas
- Division of Structural Biology, The Wellcome Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | | | - Ray Owens
- Division of Structural Biology, The Wellcome Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
- The Rosalind Franklin Institute, Harwell Campus, Oxford OX11 0FA, UK
| | - Stephanie Hatch
- Target Discovery Institute, University of Oxford, Oxford OX3 7FZ, England
| | - Juthathip Mongkolsapaya
- Nuffield Department of Medicine, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Gavin R. Screaton
- Nuffield Department of Medicine, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Katharina Schubert
- Department of Biology, Institute of Molecular Biology and Biophysics, ETH Zurich, Zurich, Switzerland
| | - John D. Huck
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - Feimei Liu
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - Florence Pojer
- Protein Production and Structure Core Facility, EPFL SV PTECH PTPSP, 1015 Lausanne, Switzerland
| | - Kelvin Lau
- Protein Production and Structure Core Facility, EPFL SV PTECH PTPSP, 1015 Lausanne, Switzerland
| | - David Hacker
- Protein Production and Structure Core Facility, EPFL SV PTECH PTPSP, 1015 Lausanne, Switzerland
| | | | - Carlo Cervia
- Department of Immunology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Jakob Nilsson
- Department of Immunology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Onur Boyman
- Department of Immunology, University Hospital Zurich, 8091 Zurich, Switzerland
- Faculty of Medicine, University of Zurich, 8006 Zurich, Switzerland
| | - Lanja Saleh
- Institute of Clinical Chemistry, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Katharina Spanaus
- Institute of Clinical Chemistry, University Hospital Zurich, 8091 Zurich, Switzerland
| | | | - Dominik J. Schaer
- Division of Internal Medicine, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Nenad Ban
- Department of Biology, Institute of Molecular Biology and Biophysics, ETH Zurich, Zurich, Switzerland
| | - Ching-Ju Tsai
- Department of Biology and Chemistry, Laboratory of Biomolecular Research, Paul Scherrer Institute, 5303 Villigen-PSI, Switzerland
| | - Jacopo Marino
- Department of Biology and Chemistry, Laboratory of Biomolecular Research, Paul Scherrer Institute, 5303 Villigen-PSI, Switzerland
| | - Gebhard F.X. Schertler
- Department of Biology and Chemistry, Laboratory of Biomolecular Research, Paul Scherrer Institute, 5303 Villigen-PSI, Switzerland
- Department of Biology, ETH Zürich, 8093 Zürich, Switzerland
| | - Nadine Ebert
- Institute of Virology and Immunology, 3012 Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland
| | - Volker Thiel
- Institute of Virology and Immunology, 3012 Bern, Switzerland
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland
| | - Jochen Gottschalk
- Regional Blood Transfusion Service Zurich, Swiss Red Cross, 8952 Schlieren, Switzerland
| | - Beat M. Frey
- Regional Blood Transfusion Service Zurich, Swiss Red Cross, 8952 Schlieren, Switzerland
| | - Regina R. Reimann
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Simone Hornemann
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Aaron M. Ring
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - Tuomas P.J. Knowles
- Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
- Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - Milo A. Puhan
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zürich, Switzerland
| | - Christian L. Althaus
- Institute of Social and Preventive Medicine, University of Bern, 3012 Bern, Switzerland
| | - Ioannis Xenarios
- Health2030 Genome Center, 9 Chemin des Mines, 1202 Geneva, Switzerland
- Agora Center, University of Lausanne, 25 Avenue du Bugnon, 1005 Lausanne, Switzerland
| | - David I. Stuart
- Division of Structural Biology, The Wellcome Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Adriano Aguzzi
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
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Avar M, Heinzer D, Steinke N, Doğançay B, Moos R, Lugan S, Cosenza C, Hornemann S, Andréoletti O, Aguzzi A. Prion infection, transmission, and cytopathology modeled in a low-biohazard human cell line. Life Sci Alliance 2020; 3:3/8/e202000814. [PMID: 32606072 PMCID: PMC7335386 DOI: 10.26508/lsa.202000814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 06/19/2020] [Accepted: 06/19/2020] [Indexed: 12/19/2022] Open
Abstract
Expanding the toolbox of prion research to a low-biohazard, scalable human cell model. Transmission of prion infectivity to susceptible murine cell lines has simplified prion titration assays and has greatly reduced the need for animal experimentation. However, murine cell models suffer from technical and biological constraints. Human cell lines might be more useful, but they are much more biohazardous and are often poorly infectible. Here, we describe the human clonal cell line hovS, which lacks the human PRNP gene and expresses instead the ovine PRNP VRQ allele. HovS cells were highly susceptible to the PG127 strain of sheep-derived murine prions, reaching up to 90% infected cells in any given culture and were maintained in a continuous infected state for at least 14 passages. Infected hovS cells produced proteinase K–resistant prion protein (PrPSc), pelletable PrP aggregates, and bona fide infectious prions capable of infecting further generations of naïve hovS cells and mice expressing the VRQ allelic variant of ovine PrPC. Infection in hovS led to prominent cytopathic vacuolation akin to the spongiform changes observed in individuals suffering from prion diseases. In addition to expanding the toolbox for prion research to human experimental genetics, the hovS cell line provides a human-derived system that does not require human prions. Hence, the manipulation of scrapie-infected hovS cells may present fewer biosafety hazards than that of genuine human prions.
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Affiliation(s)
- Merve Avar
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Daniel Heinzer
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Nicolas Steinke
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Berre Doğançay
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Rita Moos
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Severine Lugan
- UMR INRA/ENVT 1225 IHAP, École Nationale Vétérinaire de Toulouse (ENVT), Toulouse, France
| | - Claudia Cosenza
- UMR INRA/ENVT 1225 IHAP, École Nationale Vétérinaire de Toulouse (ENVT), Toulouse, France
| | - Simone Hornemann
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Olivier Andréoletti
- UMR INRA/ENVT 1225 IHAP, École Nationale Vétérinaire de Toulouse (ENVT), Toulouse, France
| | - Adriano Aguzzi
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
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