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Damour A, Faure M, Landrein N, Ragues J, Ardah N, Dhaidel H, Lafon ME, Wodrich H, Basha W. The Equal Neutralizing Effectiveness of BNT162b2, ChAdOx1 nCoV-19, and Sputnik V Vaccines in the Palestinian Population. Vaccines (Basel) 2024; 12:493. [PMID: 38793744 PMCID: PMC11125902 DOI: 10.3390/vaccines12050493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 04/15/2024] [Indexed: 05/26/2024] Open
Abstract
Since the beginning of the COVID-19 pandemic, different viral vector-based and mRNA vaccines directed against the SARS-CoV-2 "S" spike glycoprotein have been developed and have shown a good profile in terms of safety and efficacy. Nevertheless, an unbiased comparison of vaccination efficiency, including post-vaccination neutralizing activity, between the different vaccines remains largely unavailable. This study aimed to compare the efficacy of one mRNA (BNT162b2) and two non-replicating adenoviral vector vaccines (ChAdOx1 nCoV-19 and Sputnik V) in a cohort of 1120 vaccinated Palestinian individuals who received vaccines on an availability basis and which displayed a unique diversity of genetic characteristics. We assessed the level of anti-S antibodies and further determined the antibody neutralizing activity in 261 of those individuals vaccinated with BNT162b2a (121), ChAdOx1 (72) or Sputnik V (68). Our results showed no significant difference in the distribution of serum-neutralizing activity or S-antibody serum levels for the three groups of vaccines, proving equivalence in efficacy for the three vaccines under real-life conditions. In addition, none of the eight demographic parameters tested had an influence on vaccination efficacy. Regardless of the vaccine type, the vaccination campaign ultimately played a pivotal role in significantly reducing the morbidity and mortality associated with COVID-19 in Palestine.
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Affiliation(s)
- Alexia Damour
- CNRS UMR 5234, Fundamental Microbiology and Pathogenicity, University Bordeaux, 33076 Bordeaux, France; (A.D.); (M.F.); (N.L.); (J.R.); (M.-E.L.)
| | - Muriel Faure
- CNRS UMR 5234, Fundamental Microbiology and Pathogenicity, University Bordeaux, 33076 Bordeaux, France; (A.D.); (M.F.); (N.L.); (J.R.); (M.-E.L.)
| | - Nicolas Landrein
- CNRS UMR 5234, Fundamental Microbiology and Pathogenicity, University Bordeaux, 33076 Bordeaux, France; (A.D.); (M.F.); (N.L.); (J.R.); (M.-E.L.)
| | - Jessica Ragues
- CNRS UMR 5234, Fundamental Microbiology and Pathogenicity, University Bordeaux, 33076 Bordeaux, France; (A.D.); (M.F.); (N.L.); (J.R.); (M.-E.L.)
| | - Narda Ardah
- IBGC, UMR 5095, CNRS UMR 5095, Institute of Cellular Biochemistry and Genetics, Université of Bordeaux, 33077 Bordeaux, France;
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus P400, Palestine
| | - Haneen Dhaidel
- Department of Applied and Allied Medical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus P400, Palestine;
| | - Marie-Edith Lafon
- CNRS UMR 5234, Fundamental Microbiology and Pathogenicity, University Bordeaux, 33076 Bordeaux, France; (A.D.); (M.F.); (N.L.); (J.R.); (M.-E.L.)
- Virology Laboratory, Pellegrin Hospital, Bordeaux University Hospitals, 33076 Bordeaux, France
| | - Harald Wodrich
- CNRS UMR 5234, Fundamental Microbiology and Pathogenicity, University Bordeaux, 33076 Bordeaux, France; (A.D.); (M.F.); (N.L.); (J.R.); (M.-E.L.)
| | - Walid Basha
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus P400, Palestine
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Novel CYP11A1-Derived Vitamin D and Lumisterol Biometabolites for the Management of COVID-19. Nutrients 2022; 14:nu14224779. [PMID: 36432468 PMCID: PMC9698837 DOI: 10.3390/nu14224779] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
Abstract
Vitamin D deficiency is associated with a higher risk of SARS-CoV-2 infection and poor outcomes of the COVID-19 disease. However, a satisfactory mechanism explaining the vitamin D protective effects is missing. Based on the anti-inflammatory and anti-oxidative properties of classical and novel (CYP11A1-derived) vitamin D and lumisterol hydroxymetabolites, we have proposed that they would attenuate the self-amplifying damage in lungs and other organs through mechanisms initiated by interactions with corresponding nuclear receptors. These include the VDR mediated inhibition of NFκβ, inverse agonism on RORγ and the inhibition of ROS through activation of NRF2-dependent pathways. In addition, the non-receptor mediated actions of vitamin D and related lumisterol hydroxymetabolites would include interactions with the active sites of SARS-CoV-2 transcription machinery enzymes (Mpro;main protease and RdRp;RNA dependent RNA polymerase). Furthermore, these metabolites could interfere with the binding of SARS-CoV-2 RBD with ACE2 by interacting with ACE2 and TMPRSS2. These interactions can cause the conformational and dynamical motion changes in TMPRSS2, which would affect TMPRSS2 to prime SARS-CoV-2 spike proteins. Therefore, novel, CYP11A1-derived, active forms of vitamin D and lumisterol can restrain COVID-19 through both nuclear receptor-dependent and independent mechanisms, which identify them as excellent candidates for antiviral drug research and for the educated use of their precursors as nutrients or supplements in the prevention and attenuation of the COVID-19 disease.
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Scaria PV, Rowe CG, Chen BB, Dickey TH, Renn JP, Lambert LE, Barnafo EK, Rausch KM, Tolia NH, Duffy PE. Protein-protein conjugation enhances the immunogenicity of SARS-CoV-2 receptor-binding domain (RBD) vaccines. iScience 2022; 25:104739. [PMID: 35846379 PMCID: PMC9270177 DOI: 10.1016/j.isci.2022.104739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 06/06/2022] [Accepted: 07/06/2022] [Indexed: 11/24/2022] Open
Abstract
Several effective SARS-CoV-2 vaccines have been developed using different technologies. Although these vaccines target the isolates collected early in the pandemic, many have protected against serious illness from newer variants. Nevertheless, efficacy has diminished against successive variants and the need for effective and affordable vaccines persists especially in the developing world. Here, we adapted our protein-protein conjugate vaccine technology to generate a vaccine based on receptor-binding domain (RBD) antigen. RBD was conjugated to a carrier protein, EcoCRM®, to generate two types of conjugates: crosslinked and radial conjugates. In the crosslinked conjugate, antigen and carrier are chemically crosslinked; in the radial conjugate, the antigen is conjugated to the carrier by site-specific conjugation. With AS01 adjuvant, both conjugates showed enhanced immunogenicity in mice compared to RBD, with a Th1 bias. In hACE2 binding inhibition and pseudovirus neutralization assays, sera from mice vaccinated with the radial conjugate demonstrated strong functional activity.
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Affiliation(s)
- Puthupparampil V. Scaria
- Laboratory of Malaria Immunology and Vaccinology, NIAID/NIH, 29 Lincoln Drive, Building 29B, Bethesda, MD 20892-2903, USA
| | - Chris G. Rowe
- Laboratory of Malaria Immunology and Vaccinology, NIAID/NIH, 29 Lincoln Drive, Building 29B, Bethesda, MD 20892-2903, USA
| | - Beth B. Chen
- Laboratory of Malaria Immunology and Vaccinology, NIAID/NIH, 29 Lincoln Drive, Building 29B, Bethesda, MD 20892-2903, USA
| | - Thayne H. Dickey
- Laboratory of Malaria Immunology and Vaccinology, NIAID/NIH, 29 Lincoln Drive, Building 29B, Bethesda, MD 20892-2903, USA
| | - Jonathan P. Renn
- Laboratory of Malaria Immunology and Vaccinology, NIAID/NIH, 29 Lincoln Drive, Building 29B, Bethesda, MD 20892-2903, USA
| | - Lynn E. Lambert
- Laboratory of Malaria Immunology and Vaccinology, NIAID/NIH, 29 Lincoln Drive, Building 29B, Bethesda, MD 20892-2903, USA
| | - Emma K. Barnafo
- Laboratory of Malaria Immunology and Vaccinology, NIAID/NIH, 29 Lincoln Drive, Building 29B, Bethesda, MD 20892-2903, USA
| | - Kelly M. Rausch
- Laboratory of Malaria Immunology and Vaccinology, NIAID/NIH, 29 Lincoln Drive, Building 29B, Bethesda, MD 20892-2903, USA
| | - Niraj H. Tolia
- Laboratory of Malaria Immunology and Vaccinology, NIAID/NIH, 29 Lincoln Drive, Building 29B, Bethesda, MD 20892-2903, USA
| | - Patrick E. Duffy
- Laboratory of Malaria Immunology and Vaccinology, NIAID/NIH, 29 Lincoln Drive, Building 29B, Bethesda, MD 20892-2903, USA
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