1
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Janus BM, Wang R, Cleveland TE, Metcalf MC, Lemmer AC, van Dyk N, Jeong S, Astavans A, Class K, Fuerst TR, Ofek G. Macaque antibodies targeting Marburg virus glycoprotein induced by multivalent immunization. J Virol 2024; 98:e0015524. [PMID: 38832790 PMCID: PMC11329191 DOI: 10.1128/jvi.00155-24] [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: 01/23/2024] [Accepted: 05/07/2024] [Indexed: 06/05/2024] Open
Abstract
Marburg virus infection in humans is associated with case fatality rates that can reach up to 90%, but to date, there are no approved vaccines or monoclonal antibody (mAb) countermeasures. Here, we immunized Rhesus macaques with multivalent combinations of filovirus glycoprotein (GP) antigens belonging to Marburg, Sudan, and Ebola viruses to generate monospecific and cross-reactive antibody responses against them. From the animal that developed the highest titers of Marburg virus GP-specific neutralizing antibodies, we sorted single memory B cells using a heterologous Ravn virus GP probe and cloned and characterized a panel of 34 mAbs belonging to 28 unique lineages. Antibody specificities were assessed by overlapping pepscan and binding competition analyses, revealing that roughly a third of the lineages mapped to the conserved receptor binding region, including potent neutralizing lineages that were confirmed by negative stain electron microscopy to target this region. Additional lineages targeted a protective region on GP2, while others were found to possess cross-filovirus reactivity. Our study advances the understanding of orthomarburgvirus glycoprotein antigenicity and furthers efforts to develop candidate antibody countermeasures against these lethal viruses. IMPORTANCE Marburg viruses were the first filoviruses characterized to emerge in humans in 1967 and cause severe hemorrhagic fever with average case fatality rates of ~50%. Although mAb countermeasures have been approved for clinical use against the related Ebola viruses, there are currently no approved countermeasures against Marburg viruses. We successfully isolated a panel of orthomarburgvirus GP-specific mAbs from a macaque immunized with a multivalent combination of filovirus antigens. Our analyses revealed that roughly half of the antibodies in the panel mapped to regions on the glycoprotein shown to protect from infection, including the host cell receptor binding domain and a protective region on the membrane-anchoring subunit. Other antibodies in the panel exhibited broad filovirus GP recognition. Our study describes the discovery of a diverse panel of cross-reactive macaque antibodies targeting orthomarburgvirus and other filovirus GPs and provides candidate immunotherapeutics for further study and development.
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Affiliation(s)
- Benjamin M Janus
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland, USA
| | - Ruixue Wang
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland, USA
| | - Thomas E Cleveland
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland, USA
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, Maryland, USA
| | - Matthew C Metcalf
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland, USA
| | - Aaron C Lemmer
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - Nydia van Dyk
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland, USA
| | - Sarah Jeong
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland, USA
| | - Anagh Astavans
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - Kenneth Class
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - Thomas R Fuerst
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland, USA
| | - Gilad Ofek
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland, USA
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2
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Xu D, Powell AE, Utz A, Sanyal M, Do J, Patten JJ, Moliva JI, Sullivan NJ, Davey RA, Kim PS. Design of universal Ebola virus vaccine candidates via immunofocusing. Proc Natl Acad Sci U S A 2024; 121:e2316960121. [PMID: 38319964 PMCID: PMC10873634 DOI: 10.1073/pnas.2316960121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/19/2023] [Indexed: 02/08/2024] Open
Abstract
The Ebola virus causes hemorrhagic fever in humans and poses a significant threat to global public health. Although two viral vector vaccines have been approved to prevent Ebola virus disease, they are distributed in the limited ring vaccination setting and only indicated for prevention of infection from orthoebolavirus zairense (EBOV)-one of three orthoebolavirus species that have caused previous outbreaks. Ebola virus glycoprotein GP mediates viral infection and serves as the primary target of neutralizing antibodies. Here, we describe a universal Ebola virus vaccine approach using a structure-guided design of candidates with hyperglycosylation that aims to direct antibody responses away from variable regions and toward conserved epitopes of GP. We first determined the hyperglycosylation landscape on Ebola virus GP and used that to generate hyperglycosylated GP variants with two to four additional glycosylation sites to mask the highly variable glycan cap region. We then created vaccine candidates by displaying wild-type or hyperglycosylated GP variants on ferritin nanoparticles (Fer). Immunization with these antigens elicited potent neutralizing antisera against EBOV in mice. Importantly, we observed consistent cross-neutralizing activity against Bundibugyo virus and Sudan virus from hyperglycosylated GP-Fer with two or three additional glycans. In comparison, elicitation of cross-neutralizing antisera was rare in mice immunized with wild-type GP-Fer. These results demonstrate a potential strategy to develop universal Ebola virus vaccines that confer cross-protective immunity against existing and emerging filovirus species.
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Affiliation(s)
- Duo Xu
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA94305
- Sarafan ChEM-H, Stanford University, Stanford, CA94305
| | - Abigail E. Powell
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA94305
- Sarafan ChEM-H, Stanford University, Stanford, CA94305
| | - Ashley Utz
- Sarafan ChEM-H, Stanford University, Stanford, CA94305
- Stanford Medical Scientist Training Program, Stanford University School of Medicine, Stanford, CA94305
- Stanford Biophysics Program, Stanford University School of Medicine, Stanford, CA94305
| | - Mrinmoy Sanyal
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA94305
- Sarafan ChEM-H, Stanford University, Stanford, CA94305
| | - Jonathan Do
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA94305
- Sarafan ChEM-H, Stanford University, Stanford, CA94305
| | - J. J. Patten
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA02118
- Department of Virology, Immunology, and Microbiology, Boston University School of Medicine, Boston, MA02118
| | - Juan I. Moliva
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA02118
- Department of Virology, Immunology, and Microbiology, Boston University School of Medicine, Boston, MA02118
| | - Nancy J. Sullivan
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA02118
- Department of Virology, Immunology, and Microbiology, Boston University School of Medicine, Boston, MA02118
- Department of Biology, Boston University, Boston, MA02118
| | - Robert A. Davey
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA02118
- Department of Virology, Immunology, and Microbiology, Boston University School of Medicine, Boston, MA02118
| | - Peter S. Kim
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA94305
- Sarafan ChEM-H, Stanford University, Stanford, CA94305
- Chan Zuckerberg Biohub, San Francisco, CA94158
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3
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Xu D, Powell AE, Utz A, Sanyal M, Do J, Patten J, Moliva JI, Sullivan NJ, Davey RA, Kim PS. Design of universal Ebola virus vaccine candidates via immunofocusing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.14.562364. [PMID: 37904982 PMCID: PMC10614775 DOI: 10.1101/2023.10.14.562364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Ebola virus causes hemorrhagic fever in humans and poses a significant threat to global public health. Although two viral vector vaccines have been approved to prevent Ebola virus disease, they are distributed in the limited ring vaccination setting and only indicated for prevention of infection from orthoebolavirus zairense (EBOV) - one of three orthoebolavirus species that have caused previous outbreaks. Ebola virus glycoprotein GP mediates viral infection and serves as the primary target of neutralizing antibodies. Here we describe a universal Ebola virus vaccine approach using structure-guided design of candidates with hyperglycosylation that aims to direct antibody responses away from variable regions and toward conserved epitopes of GP. We first determined the hyperglycosylation landscape on Ebola virus GP and used that to generate hyperglycosylated GP variants with two to four additional glycosylation sites to mask the highly variable glycan cap region. We then created vaccine candidates by displaying wild-type or hyperglycosylated GP variants on ferritin nanoparticles (Fer). Immunization with these antigens elicited potent neutralizing antisera against EBOV in mice. Importantly, we observed consistent cross-neutralizing activity against Bundibugyo virus and Sudan virus from hyperglycosylated GP-Fer with two or three additional glycans. In comparison, elicitation of cross-neutralizing antisera was rare in mice immunized with wild-type GP-Fer. These results demonstrate a potential strategy to develop universal Ebola virus vaccines that confer cross-protective immunity against existing and emerging filovirus species.
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Affiliation(s)
- Duo Xu
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
| | - Abigail E. Powell
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
| | - Ashley Utz
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
- Stanford Medical Scientist Training Program, Stanford University School of Medicine, Stanford, CA 94305, USA
- Stanford Biophysics Program, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Mrinmoy Sanyal
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
| | - Jonathan Do
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
| | - J.J. Patten
- National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
- Department of Virology, Immunology, and Microbiology, Boston University School of Medicine, Boston, MA 02118, USA
| | - Juan I. Moliva
- National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
- Department of Virology, Immunology, and Microbiology, Boston University School of Medicine, Boston, MA 02118, USA
| | - Nancy J. Sullivan
- National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
- Department of Virology, Immunology, and Microbiology, Boston University School of Medicine, Boston, MA 02118, USA
- Department of Biology, Boston University, Boston, MA 02118, USA
| | - Robert A. Davey
- National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
- Department of Virology, Immunology, and Microbiology, Boston University School of Medicine, Boston, MA 02118, USA
| | - Peter S. Kim
- Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
- Chan Zuckerberg Biohub, San Francisco, CA 94158, USA
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4
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Sah R, Mohanty A, Reda A, Siddiq A, Mohapatra RK, Dhama K. Marburg virus re-emerged in 2022: recently detected in Ghana, another zoonotic pathogen coming up amid rising cases of Monkeypox and ongoing COVID-19 pandemic- global health concerns and counteracting measures. Vet Q 2022; 42:167-171. [PMID: 35993230 PMCID: PMC9448384 DOI: 10.1080/01652176.2022.2116501] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Ranjit Sah
- Institute of Medicine, Tribhuvan University Teaching Hospital, Kathmandu, Nepal,Harvard Medical School, Boston, MA, USA,CONTACT Ranjit Sah Institute of Medicine, Tribhuvan University Teaching Hospital, Kathmandu, Nepal
| | - Aroop Mohanty
- All India Institute of Medical Sciences, Gorakhpur, India
| | - Abdullah Reda
- Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | | | - Ranjan K. Mohapatra
- Department of Chemistry, Government College of Engineering, Keonjhar, Odisha, India
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, India,Kuldeep Dhama Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar243122, India
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5
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Folegatti PM, Jenkin D, Morris S, Gilbert S, Kim D, Robertson JS, Smith ER, Martin E, Gurwith M, Chen RT. Vaccines based on the replication-deficient simian adenoviral vector ChAdOx1: Standardized template with key considerations for a risk/benefit assessment. Vaccine 2022; 40:5248-5262. [PMID: 35715352 PMCID: PMC9194875 DOI: 10.1016/j.vaccine.2022.06.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/10/2022] [Accepted: 06/02/2022] [Indexed: 02/07/2023]
Abstract
Replication-deficient adenoviral vectors have been under investigation as a platform technology for vaccine development for several years and have recently been successfully deployed as an effective COVID-19 counter measure. A replication-deficient adenoviral vector based on the simian adenovirus type Y25 and named ChAdOx1 has been evaluated in several clinical trials since 2012. The Brighton Collaboration Benefit-Risk Assessment of VAccines by TechnolOgy (BRAVATO) was formed to evaluate the safety and other key features of new platform technology vaccines. This manuscript reviews key features of the ChAdOx1-vectored vaccines. The simian adenovirus Y25 was chosen as a strategy to circumvent pre-existing immunity to common human adenovirus serotypes which could impair immune responses induced by adenoviral vectored vaccines. Deletion of the E1 gene renders the ChAdOx1 vector replication incompetent and further genetic engineering of the E3 and E4 genes allows for increased insertional capability and optimizes vaccine manufacturing processes. ChAdOx1 vectored vaccines can be manufactured in E1 complementing cell lines at scale and are thermostable. The first ChAdOx1 vectored vaccines approved for human use, against SARS-CoV-2, received emergency use authorization in the UK on 30th December 2020, and is now approved in more than 180 countries. Safety data were compiled from phase I-III clinical trials of ChAdOx1 vectored vaccines expressing different antigens (influenza, tuberculosis, malaria, meningococcal B, prostate cancer, MERS-CoV, Chikungunya, Zika and SARS-CoV-2), conducted by the University of Oxford, as well as post marketing surveillance data for the COVID-19 Oxford-AstraZeneca vaccine. Overall, ChAdOx1 vectored vaccines have been well tolerated. Very rarely, thrombosis with thrombocytopenia syndrome (TTS), capillary leak syndrome (CLS), immune thrombocytopenia (ITP), and Guillain-Barre syndrome (GBS) have been reported following mass administration of the COVID-19 Oxford-AstraZeneca vaccine. The benefits of this COVID-19 vaccination have outweighed the risks of serious adverse events in most settings, especially with mitigation of risks when possible. Extensive immunogenicity clinical evaluation of ChAdOx1 vectored vaccines reveal strong, durable humoral and cellular immune responses to date; studies to refine the COVID-19 protection (e.g., via homologous/heterologous booster, fractional dose) are also underway. New prophylactic and therapeutic vaccines based on the ChAdOx1 vector are currently undergoing pre-clinical and clinical assessment, including vaccines against viral hemorrhagic fevers, Nipah virus, HIV, Hepatitis B, amongst others.
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Affiliation(s)
| | | | | | | | - Denny Kim
- Brighton Collaboration, a program of the Task Force for Global Health, Decatur, GA, USA
| | - James S. Robertson
- Brighton Collaboration, a program of the Task Force for Global Health, Decatur, GA, USA
| | - Emily R. Smith
- Brighton Collaboration, a program of the Task Force for Global Health, Decatur, GA, USA,Corresponding author
| | - Emalee Martin
- Brighton Collaboration, a program of the Task Force for Global Health, Decatur, GA, USA
| | - Marc Gurwith
- Brighton Collaboration, a program of the Task Force for Global Health, Decatur, GA, USA
| | - Robert T. Chen
- Brighton Collaboration, a program of the Task Force for Global Health, Decatur, GA, USA
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6
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Sharma AR, Lee YH, Nath S, Lee SS. Recent developments and strategies of Ebola virus vaccines. Curr Opin Pharmacol 2021; 60:46-53. [PMID: 34329960 DOI: 10.1016/j.coph.2021.06.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/11/2021] [Accepted: 06/23/2021] [Indexed: 12/13/2022]
Abstract
The Filovirus family member, Ebola virus (EBOV), is a highly infectious pathogen responsible for viral hemorrhagic fever. EBOV has a fatality rate in the range 50%-90% in primates. The lethal viral hemorrhagic attack in 2014 by EBOV has forced the human race to look for rapid countermeasures. Fortunately, owing to continuous efforts and several vaccine platforms, few potential vaccine candidates are emerging, such as replicative and non-replicative vectored vaccines, polyepitopic or monovalent vaccines, and DNA vaccines. This article reviewed various kinds of EBOV vaccines in different clinical trial phases and their approval status. Updated knowledge of vaccine development progress might stimulate the researchers to look for more potent and effective vaccine candidates against EBOV.
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Affiliation(s)
- Ashish Ranjan Sharma
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Republic of Korea.
| | - Yeon-Hee Lee
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Republic of Korea
| | - Sudarshini Nath
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Republic of Korea
| | - Sang-Soo Lee
- Institute for Skeletal Aging & Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Chuncheon-si, 24252, Gangwon-do, Republic of Korea.
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7
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Structural Insights into the Interaction of Filovirus Glycoproteins with the Endosomal Receptor Niemann-Pick C1: A Computational Study. Viruses 2021; 13:v13050913. [PMID: 34069246 PMCID: PMC8156010 DOI: 10.3390/v13050913] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 02/06/2023] Open
Abstract
Filoviruses, including marburgviruses and ebolaviruses, have a single transmembrane glycoprotein (GP) that facilitates their entry into cells. During entry, GP needs to be cleaved by host proteases to expose the receptor-binding site that binds to the endosomal receptor Niemann-Pick C1 (NPC1) protein. The crystal structure analysis of the cleaved GP (GPcl) of Ebola virus (EBOV) in complex with human NPC1 has demonstrated that NPC1 has two protruding loops (loops 1 and 2), which engage a hydrophobic pocket on the head of EBOV GPcl. However, the molecular interactions between NPC1 and the GPcl of other filoviruses remain unexplored. In the present study, we performed molecular modeling and molecular dynamics simulations of NPC1 complexed with GPcls of two ebolaviruses, EBOV and Sudan virus (SUDV), and one marburgvirus, Ravn virus (RAVV). Similar binding structures were observed in the GPcl–NPC1 complexes of EBOV and SUDV, which differed from that of RAVV. Specifically, in the RAVV GPcl–NPC1 complex, the tip of loop 2 was closer to the pocket edge comprising residues at positions 79–88 of GPcl; the root of loop 1 was predicted to interact with P116 and Q144 of GPcl. Furthermore, in the SUDV GPcl–NPC1 complex, the tip of loop 2 was slightly closer to the residue at position 141 than those in the EBOV and RAVV GPcl–NPC1 complexes. These structural differences may affect the size and/or shape of the receptor-binding pocket of GPcl. Our structural models could provide useful information for improving our understanding the differences in host preference among filoviruses as well as contributing to structure-based drug design.
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8
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Watanabe Y, Mendonça L, Allen ER, Howe A, Lee M, Allen JD, Chawla H, Pulido D, Donnellan F, Davies H, Ulaszewska M, Belij-Rammerstorfer S, Morris S, Krebs AS, Dejnirattisai W, Mongkolsapaya J, Supasa P, Screaton GR, Green CM, Lambe T, Zhang P, Gilbert SC, Crispin M. Native-like SARS-CoV-2 Spike Glycoprotein Expressed by ChAdOx1 nCoV-19/AZD1222 Vaccine. ACS CENTRAL SCIENCE 2021; 7:594-602. [PMID: 34056089 PMCID: PMC8043200 DOI: 10.1021/acscentsci.1c00080] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Indexed: 05/08/2023]
Abstract
Vaccine development against the SARS-CoV-2 virus focuses on the principal target of the neutralizing immune response, the spike (S) glycoprotein. Adenovirus-vectored vaccines offer an effective platform for the delivery of viral antigen, but it is important for the generation of neutralizing antibodies that they produce appropriately processed and assembled viral antigen that mimics that observed on the SARS-CoV-2 virus. Here, we describe the structure, conformation, and glycosylation of the S protein derived from the adenovirus-vectored ChAdOx1 nCoV-19/AZD1222 vaccine. We demonstrate native-like post-translational processing and assembly, and reveal the expression of S proteins on the surface of cells adopting the trimeric prefusion conformation. The data presented here confirm the use of ChAdOx1 adenovirus vectors as a leading platform technology for SARS-CoV-2 vaccines.
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Affiliation(s)
- Yasunori Watanabe
- School
of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, U.K.
- Oxford
Glycobiology Institute, Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, U.K.
| | - Luiza Mendonça
- Division
of Structural Biology, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, U.K.
| | - Elizabeth R. Allen
- The
Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, U.K.
| | - Andrew Howe
- Electron
Bio-imaging Centre, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, U.K.
| | - Mercede Lee
- The
Wellcome Centre for Human Genetics, University
of Oxford, Roosevelt Drive, Oxford OX3 7BN, U.K.
| | - Joel D. Allen
- School
of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, U.K.
| | - Himanshi Chawla
- School
of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, U.K.
| | - David Pulido
- The
Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, U.K.
| | - Francesca Donnellan
- The
Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, U.K.
| | - Hannah Davies
- The
Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, U.K.
| | - Marta Ulaszewska
- The
Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, U.K.
| | - Sandra Belij-Rammerstorfer
- The
Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, U.K.
- NIHR Oxford
Biomedical Research Centre, Oxford, U.K.
| | - Susan Morris
- The
Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, U.K.
| | - Anna-Sophia Krebs
- Division
of Structural Biology, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, U.K.
| | - Wanwisa Dejnirattisai
- The
Wellcome Centre for Human Genetics, University
of Oxford, Roosevelt Drive, Oxford OX3 7BN, U.K.
| | - Juthathip Mongkolsapaya
- The
Wellcome Centre for Human Genetics, University
of Oxford, Roosevelt Drive, Oxford OX3 7BN, U.K.
- Dengue
Hemorrhagic Fever Research Unit, Office for Research and Development,
Faculty of Medicine, Siriraj Hospital, Mahidol
University, Bangkok, Thailand
- Chinese
Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, U.K.
| | - Piyada Supasa
- The
Wellcome Centre for Human Genetics, University
of Oxford, Roosevelt Drive, Oxford OX3 7BN, U.K.
| | - Gavin R. Screaton
- The
Wellcome Centre for Human Genetics, University
of Oxford, Roosevelt Drive, Oxford OX3 7BN, U.K.
- Division
of Medical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, U.K.
| | - Catherine M. Green
- The
Wellcome Centre for Human Genetics, University
of Oxford, Roosevelt Drive, Oxford OX3 7BN, U.K.
| | - Teresa Lambe
- The
Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, U.K.
- NIHR Oxford
Biomedical Research Centre, Oxford, U.K.
| | - Peijun Zhang
- Division
of Structural Biology, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7BN, U.K.
- Electron
Bio-imaging Centre, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, U.K.
| | - Sarah C. Gilbert
- The
Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, U.K.
- NIHR Oxford
Biomedical Research Centre, Oxford, U.K.
| | - Max Crispin
- School
of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, U.K.
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9
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Watanabe Y, Mendonça L, Allen ER, Howe A, Lee M, Allen JD, Chawla H, Pulido D, Donnellan F, Davies H, Ulaszewska M, Belij-Rammerstorfer S, Morris S, Krebs AS, Dejnirattisai W, Mongkolsapaya J, Supasa P, Screaton GR, Green CM, Lambe T, Zhang P, Gilbert SC, Crispin M. Native-like SARS-CoV-2 spike glycoprotein expressed by ChAdOx1 nCoV-19/AZD1222 vaccine. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021:2021.01.15.426463. [PMID: 33501433 PMCID: PMC7836103 DOI: 10.1101/2021.01.15.426463] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Vaccine development against the SARS-CoV-2 virus focuses on the principal target of the neutralizing immune response, the spike (S) glycoprotein. Adenovirus-vectored vaccines offer an effective platform for the delivery of viral antigen, but it is important for the generation of neutralizing antibodies that they produce appropriately processed and assembled viral antigen that mimics that observed on the SARS-CoV-2 virus. Here, we describe the structure, conformation and glycosylation of the S protein derived from the adenovirus-vectored ChAdOx1 nCoV-19/AZD1222 vaccine. We demonstrate native-like post-translational processing and assembly, and reveal the expression of S proteins on the surface of cells adopting the trimeric prefusion conformation. The data presented here confirms the use of ChAdOx1 adenovirus vectors as a leading platform technology for SARS-CoV-2 vaccines.
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Affiliation(s)
- Yasunori Watanabe
- School of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, UK
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Luiza Mendonça
- Division of Structural Biology, University of Oxford, Wellcome Centre for Human Genetics, Oxford, OX3 7BN, UK
| | - Elizabeth R. Allen
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Andrew Howe
- Electron Bio-imaging Centre, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Mercede Lee
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Joel D. Allen
- School of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, UK
| | - Himanshi Chawla
- School of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, UK
| | - David Pulido
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Francesca Donnellan
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Hannah Davies
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Marta Ulaszewska
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Sandra Belij-Rammerstorfer
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Susan Morris
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Anna-Sophia Krebs
- Division of Structural Biology, University of Oxford, Wellcome Centre for Human Genetics, Oxford, OX3 7BN, UK
| | - Wanwisa Dejnirattisai
- The Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK
| | - Juthathip Mongkolsapaya
- The Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK
- Dengue Hemorrhagic Fever Research Unit, Office for Research and Development, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Chinese Academy of Medical Science(CAMS) Oxford Institute (COI), University of Oxford, Oxford, U.K
| | - Piyada Supasa
- The Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK
| | - Gavin R. Screaton
- The Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK
- Division of Medical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Catherine M. Green
- The Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK
| | - Teresa Lambe
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Peijun Zhang
- Division of Structural Biology, University of Oxford, Wellcome Centre for Human Genetics, Oxford, OX3 7BN, UK
- Electron Bio-imaging Centre, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Sarah C. Gilbert
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Max Crispin
- School of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, UK
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