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Baum HE, Thirard R, Halliday A, Baos S, Thomas AC, Harris RA, Oliver E, Culliford L, Hitchings B, Todd R, Gupta K, Goenka A, Finn A, Rogers CA, Lazarus R. Detection of SARS-CoV-2-specific mucosal antibodies in saliva following concomitant COVID-19 and influenza vaccination in the ComFluCOV trial. Vaccine 2024; 42:2945-2950. [PMID: 38580516 DOI: 10.1016/j.vaccine.2024.03.061] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/07/2024]
Abstract
The ComFluCOV trial randomized 679 participants to receive an age-appropriate influenza vaccine, or placebo, alongside their second COVID-19 vaccine. Concomitant administration was shown to be safe, and to preserve systemic immune responses to both vaccines. Here we report on a secondary outcome of the trial investigating SARS-CoV-2-specific mucosal antibody responses. Anti-spike IgG and IgA levels in saliva were measured with in-house ELISAs. Concomitant administration of an influenza vaccine did not affect salivary anti-spike IgG positivity rates to Pfizer/BioNTech BNT162b2 (99.1 cf. 95.6%), or AstraZeneca ChAdOx1 (67.8% cf. 64.9%), at 3-weeks post-vaccination relative to placebo. Furthermore, saliva IgG positively correlated with serum titres highlighting the potential utility of saliva for assessing differences in immunogenicity in future vaccine studies. Mucosal IgA was not detected in response to either COVID-19 vaccine, reinforcing the need for novel vaccines capable of inducing sterilising immunity or otherwise reducing transmission. The trial is registered as ISRCTN 14391248.
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Affiliation(s)
- Holly E Baum
- School of Cellular and Molecular Medicine, Faculty of Health and Life Sciences, University of Bristol, UK; Bristol Vaccine Centre, University of Bristol, UK
| | | | - Alice Halliday
- School of Cellular and Molecular Medicine, Faculty of Health and Life Sciences, University of Bristol, UK; Bristol Vaccine Centre, University of Bristol, UK
| | - Sarah Baos
- Bristol Trials Centre, University of Bristol, Bristol, UK
| | - Amy C Thomas
- Bristol Vaccine Centre, University of Bristol, UK; Population Health Sciences, Bristol Medical School, University of Bristol, UK
| | - Rosie A Harris
- Bristol Trials Centre, University of Bristol, Bristol, UK
| | - Elizabeth Oliver
- School of Cellular and Molecular Medicine, Faculty of Health and Life Sciences, University of Bristol, UK; Bristol Vaccine Centre, University of Bristol, UK
| | - Lucy Culliford
- Bristol Trials Centre, University of Bristol, Bristol, UK
| | - Benjamin Hitchings
- School of Cellular and Molecular Medicine, Faculty of Health and Life Sciences, University of Bristol, UK; Bristol Vaccine Centre, University of Bristol, UK
| | - Rachel Todd
- Bristol Trials Centre, University of Bristol, Bristol, UK
| | - Kapil Gupta
- School of Biochemistry, Faculty of Health and Life Sciences, University of Bristol, UK
| | - Anu Goenka
- School of Cellular and Molecular Medicine, Faculty of Health and Life Sciences, University of Bristol, UK; Bristol Vaccine Centre, University of Bristol, UK; University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Adam Finn
- School of Cellular and Molecular Medicine, Faculty of Health and Life Sciences, University of Bristol, UK; Bristol Vaccine Centre, University of Bristol, UK; University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Chris A Rogers
- Bristol Trials Centre, University of Bristol, Bristol, UK
| | - Rajeka Lazarus
- Bristol Vaccine Centre, University of Bristol, UK; University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK.
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Halliday A, Long AE, Baum HE, Thomas AC, Shelley KL, Oliver E, Gupta K, Francis O, Williamson MK, Di Bartolo N, Randell MJ, Ben-Khoud Y, Kelland I, Mortimer G, Ball O, Plumptre C, Chandler K, Obst U, Secchi M, Piemonti L, Lampasona V, Smith J, Gregorova M, Knezevic L, Metz J, Barr R, Morales-Aza B, Oliver J, Collingwood L, Hitchings B, Ring S, Wooldridge L, Rivino L, Timpson N, McKernon J, Muir P, Hamilton F, Arnold D, Woolfson DN, Goenka A, Davidson AD, Toye AM, Berger I, Bailey M, Gillespie KM, Williams AJK, Finn A. Development and evaluation of low-volume tests to detect and characterize antibodies to SARS-CoV-2. Front Immunol 2022; 13:968317. [PMID: 36439154 PMCID: PMC9682908 DOI: 10.3389/fimmu.2022.968317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 06/13/2022] [Accepted: 08/30/2022] [Indexed: 11/11/2022] Open
Abstract
Low-volume antibody assays can be used to track SARS-CoV-2 infection rates in settings where active testing for virus is limited and remote sampling is optimal. We developed 12 ELISAs detecting total or antibody isotypes to SARS-CoV-2 nucleocapsid, spike protein or its receptor binding domain (RBD), 3 anti-RBD isotype specific luciferase immunoprecipitation system (LIPS) assays and a novel Spike-RBD bridging LIPS total-antibody assay. We utilized pre-pandemic (n=984) and confirmed/suspected recent COVID-19 sera taken pre-vaccination rollout in 2020 (n=269). Assays measuring total antibody discriminated best between pre-pandemic and COVID-19 sera and were selected for diagnostic evaluation. In the blind evaluation, two of these assays (Spike Pan ELISA and Spike-RBD Bridging LIPS assay) demonstrated >97% specificity and >92% sensitivity for samples from COVID-19 patients taken >21 days post symptom onset or PCR test. These assays offered better sensitivity for the detection of COVID-19 cases than a commercial assay which requires 100-fold larger serum volumes. This study demonstrates that low-volume in-house antibody assays can provide good diagnostic performance, and highlights the importance of using well-characterized samples and controls for all stages of assay development and evaluation. These cost-effective assays may be particularly useful for seroprevalence studies in low and middle-income countries.
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Affiliation(s)
- Alice Halliday
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Anna E. Long
- Diabetes and Metabolism, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Holly E. Baum
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
- School of Chemistry, University of Bristol, Bristol, United Kingdom
| | - Amy C. Thomas
- Bristol Veterinary School, University of Bristol, Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Kathryn L. Shelley
- School of Chemistry, University of Bristol, Bristol, United Kingdom
- School of Biochemistry, Biomedical Sciences Building, University Walk, University of Bristol, Bristol, United Kingdom
| | - Elizabeth Oliver
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Kapil Gupta
- School of Biochemistry, Biomedical Sciences Building, University Walk, University of Bristol, Bristol, United Kingdom
| | - Ore Francis
- Bristol Veterinary School, University of Bristol, Bristol, United Kingdom
| | | | - Natalie Di Bartolo
- School of Biochemistry, Biomedical Sciences Building, University Walk, University of Bristol, Bristol, United Kingdom
| | - Matthew J. Randell
- Diabetes and Metabolism, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Yassin Ben-Khoud
- Diabetes and Metabolism, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Ilana Kelland
- Diabetes and Metabolism, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Georgina Mortimer
- Diabetes and Metabolism, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Olivia Ball
- Diabetes and Metabolism, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Charlie Plumptre
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Kyla Chandler
- Diabetes and Metabolism, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Ulrike Obst
- School of Chemistry, University of Bristol, Bristol, United Kingdom
| | - Massimiliano Secchi
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Lorenzo Piemonti
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Vito Lampasona
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Joyce Smith
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Michaela Gregorova
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Lea Knezevic
- Bristol Veterinary School, University of Bristol, Bristol, United Kingdom
| | - Jane Metz
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
- Department of Paediatric Immunology and Infectious Diseases, Bristol Royal Hospital for Children, Bristol, United Kingdom
| | - Rachael Barr
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
- Department of Paediatric Immunology and Infectious Diseases, Bristol Royal Hospital for Children, Bristol, United Kingdom
| | - Begonia Morales-Aza
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Jennifer Oliver
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Lucy Collingwood
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Benjamin Hitchings
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Susan Ring
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
- MRC Integrative Epidemiology Unit at University of Bristol, Bristol, United Kingdom
| | - Linda Wooldridge
- Bristol Veterinary School, University of Bristol, Bristol, United Kingdom
| | - Laura Rivino
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Nicholas Timpson
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
- MRC Integrative Epidemiology Unit at University of Bristol, Bristol, United Kingdom
| | - Jorgen McKernon
- National Infection Service, UK Health Security Agency, Southmead Hospital, Bristol, United Kingdom
| | - Peter Muir
- National Infection Service, UK Health Security Agency, Southmead Hospital, Bristol, United Kingdom
| | - Fergus Hamilton
- MRC Integrative Epidemiology Unit at University of Bristol, Bristol, United Kingdom
- Academic Respiratory Unit, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - David Arnold
- Academic Respiratory Unit, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Derek N. Woolfson
- School of Chemistry, University of Bristol, Bristol, United Kingdom
- School of Biochemistry, Biomedical Sciences Building, University Walk, University of Bristol, Bristol, United Kingdom
- Bristol BioDesign Institute, University of Bristol, Bristol, United Kingdom
| | - Anu Goenka
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
- Department of Paediatric Immunology and Infectious Diseases, Bristol Royal Hospital for Children, Bristol, United Kingdom
| | - Andrew D. Davidson
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Ashley M. Toye
- School of Biochemistry, Biomedical Sciences Building, University Walk, University of Bristol, Bristol, United Kingdom
- Bristol BioDesign Institute, University of Bristol, Bristol, United Kingdom
- Bristol Institute of Transfusion Sciences, NHS Blood and Transplant Filton, Bristol, United Kingdom
| | - Imre Berger
- School of Chemistry, University of Bristol, Bristol, United Kingdom
- School of Biochemistry, Biomedical Sciences Building, University Walk, University of Bristol, Bristol, United Kingdom
- Bristol BioDesign Institute, University of Bristol, Bristol, United Kingdom
| | - Mick Bailey
- Bristol Veterinary School, University of Bristol, Bristol, United Kingdom
| | - Kathleen M. Gillespie
- Diabetes and Metabolism, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Alistair J. K. Williams
- Diabetes and Metabolism, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Adam Finn
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
- Department of Paediatric Immunology and Infectious Diseases, Bristol Royal Hospital for Children, Bristol, United Kingdom
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Beesley JL, Baum HE, Hodgson LR, Verkade P, Banting GS, Woolfson DN. Modifying Self-Assembled Peptide Cages To Control Internalization into Mammalian Cells. Nano Lett 2018; 18:5933-5937. [PMID: 30084257 DOI: 10.1021/acs.nanolett.8b02633] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Nanoparticles can be used to transport a variety of biological cargoes into eukaryotic cells. Polypeptides provide a versatile material for constructing such systems. Previously, we have assembled nanoscale peptide cages (SAGEs) from de novo designed coiled-coil modules. Here, we show that the modules can be extended with short charged peptides to alter endocytosis of the assembled SAGE particles by cultured human cells in a tunable fashion. First, we find that the peptide extensions affect coiled-coil stability predictably: N-terminal polylysine and C-terminal polyglutamate tags are destabilizing; whereas, the reversed arrangements have little impact. Second, the cationic assembled particles are internalized faster and to greater extents by cells than the parent SAGEs. By contrast, anionic decorations markedly inhibit both aspects of uptake. These studies highlight how the modular SAGE system facilitates rational peptide design to fine-tune the bioactivity of nanoparticles, which should allow engineering of tailored cell-delivery vehicles.
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Affiliation(s)
- Joseph L Beesley
- School of Chemistry , University of Bristol , Bristol BS8 1TS , United Kingdom
| | - Holly E Baum
- School of Biochemistry , University of Bristol , Bristol BS8 1TD , United Kingdom
- BrisSynBio , University of Bristol , Bristol BS8 1TQ , United Kingdom
| | - Lorna R Hodgson
- School of Biochemistry , University of Bristol , Bristol BS8 1TD , United Kingdom
| | - Paul Verkade
- School of Biochemistry , University of Bristol , Bristol BS8 1TD , United Kingdom
- Wolfson Bioimaging Facility , University of Bristol , Bristol BS8 1TD , United Kingdom
- BrisSynBio , University of Bristol , Bristol BS8 1TQ , United Kingdom
| | - George S Banting
- School of Biochemistry , University of Bristol , Bristol BS8 1TD , United Kingdom
| | - Derek N Woolfson
- School of Chemistry , University of Bristol , Bristol BS8 1TS , United Kingdom
- School of Biochemistry , University of Bristol , Bristol BS8 1TD , United Kingdom
- BrisSynBio , University of Bristol , Bristol BS8 1TQ , United Kingdom
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