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King RG, Silva-Sanchez A, Peel JN, Botta D, Dickson AM, Pinto AK, Meza-Perez S, Allie SR, Schultz MD, Liu M, Bradley JE, Qiu S, Yang G, Zhou F, Zumaquero E, Simpler TS, Mousseau B, Killian JT, Dean B, Shang Q, Tipper JL, Risley CA, Harrod KS, Feng T, Lee Y, Shiberu B, Krishnan V, Peguillet I, Zhang J, Green TJ, Randall TD, Suschak JJ, Georges B, Brien JD, Lund FE, Roberts MS. Single-Dose Intranasal Administration of AdCOVID Elicits Systemic and Mucosal Immunity against SARS-CoV-2 and Fully Protects Mice from Lethal Challenge. Vaccines (Basel) 2021; 9:881. [PMID: 34452006 PMCID: PMC8402488 DOI: 10.3390/vaccines9080881] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/29/2021] [Accepted: 08/03/2021] [Indexed: 02/08/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has highlighted the urgent need for effective prophylactic vaccination to prevent the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Intranasal vaccination is an attractive strategy to prevent COVID-19 as the nasal mucosa represents the first-line barrier to SARS-CoV-2 entry. The current intramuscular vaccines elicit systemic immunity but not necessarily high-level mucosal immunity. Here, we tested a single intranasal dose of our candidate adenovirus type 5-vectored vaccine encoding the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein (AdCOVID) in inbred, outbred, and transgenic mice. A single intranasal vaccination with AdCOVID elicited a strong and focused immune response against RBD through the induction of mucosal IgA in the respiratory tract, serum neutralizing antibodies, and CD4+ and CD8+ T cells with a Th1-like cytokine expression profile. A single AdCOVID dose resulted in immunity that was sustained for over six months. Moreover, a single intranasal dose completely protected K18-hACE2 mice from lethal SARS-CoV-2 challenge, preventing weight loss and mortality. These data show that AdCOVID promotes concomitant systemic and mucosal immunity and represents a promising vaccine candidate.
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Affiliation(s)
- R. Glenn King
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Aaron Silva-Sanchez
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (A.S.-S.); (S.M.-P.); (S.R.A.); (M.L.); (J.E.B.); (T.D.R.)
| | - Jessica N. Peel
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Davide Botta
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Alexandria M. Dickson
- Department of Molecular Microbiology & Immunology, Saint Louis University, St. Louis, MO 63104, USA; (A.M.D.); (A.K.P.); (J.D.B.)
| | - Amelia K. Pinto
- Department of Molecular Microbiology & Immunology, Saint Louis University, St. Louis, MO 63104, USA; (A.M.D.); (A.K.P.); (J.D.B.)
| | - Selene Meza-Perez
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (A.S.-S.); (S.M.-P.); (S.R.A.); (M.L.); (J.E.B.); (T.D.R.)
| | - S. Rameeza Allie
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (A.S.-S.); (S.M.-P.); (S.R.A.); (M.L.); (J.E.B.); (T.D.R.)
| | - Michael D. Schultz
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Mingyong Liu
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (A.S.-S.); (S.M.-P.); (S.R.A.); (M.L.); (J.E.B.); (T.D.R.)
| | - John E. Bradley
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (A.S.-S.); (S.M.-P.); (S.R.A.); (M.L.); (J.E.B.); (T.D.R.)
| | - Shihong Qiu
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Guang Yang
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Fen Zhou
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Esther Zumaquero
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Thomas S. Simpler
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Betty Mousseau
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - John T. Killian
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Brittany Dean
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Qiao Shang
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Jennifer L. Tipper
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (J.L.T.); (K.S.H.)
| | - Christopher A. Risley
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Kevin S. Harrod
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (J.L.T.); (K.S.H.)
| | - Tsungwei Feng
- Altimmune Inc., Gaithersburg, MD 20878, USA; (T.F.); (Y.L.); (B.S.); (V.K.); (I.P.); (J.Z.); (J.J.S.); (B.G.)
| | - Young Lee
- Altimmune Inc., Gaithersburg, MD 20878, USA; (T.F.); (Y.L.); (B.S.); (V.K.); (I.P.); (J.Z.); (J.J.S.); (B.G.)
| | - Bethlehem Shiberu
- Altimmune Inc., Gaithersburg, MD 20878, USA; (T.F.); (Y.L.); (B.S.); (V.K.); (I.P.); (J.Z.); (J.J.S.); (B.G.)
| | - Vyjayanthi Krishnan
- Altimmune Inc., Gaithersburg, MD 20878, USA; (T.F.); (Y.L.); (B.S.); (V.K.); (I.P.); (J.Z.); (J.J.S.); (B.G.)
| | - Isabelle Peguillet
- Altimmune Inc., Gaithersburg, MD 20878, USA; (T.F.); (Y.L.); (B.S.); (V.K.); (I.P.); (J.Z.); (J.J.S.); (B.G.)
| | - Jianfeng Zhang
- Altimmune Inc., Gaithersburg, MD 20878, USA; (T.F.); (Y.L.); (B.S.); (V.K.); (I.P.); (J.Z.); (J.J.S.); (B.G.)
| | - Todd J. Green
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - Troy D. Randall
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (A.S.-S.); (S.M.-P.); (S.R.A.); (M.L.); (J.E.B.); (T.D.R.)
| | - John J. Suschak
- Altimmune Inc., Gaithersburg, MD 20878, USA; (T.F.); (Y.L.); (B.S.); (V.K.); (I.P.); (J.Z.); (J.J.S.); (B.G.)
| | - Bertrand Georges
- Altimmune Inc., Gaithersburg, MD 20878, USA; (T.F.); (Y.L.); (B.S.); (V.K.); (I.P.); (J.Z.); (J.J.S.); (B.G.)
| | - James D. Brien
- Department of Molecular Microbiology & Immunology, Saint Louis University, St. Louis, MO 63104, USA; (A.M.D.); (A.K.P.); (J.D.B.)
| | - Frances E. Lund
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (R.G.K.); (J.N.P.); (D.B.); (M.D.S.); (S.Q.); (G.Y.); (F.Z.); (E.Z.); (T.S.S.); (B.M.); (J.T.K.J.); (B.D.); (Q.S.); (C.A.R.); (T.J.G.)
| | - M. Scot Roberts
- Altimmune Inc., Gaithersburg, MD 20878, USA; (T.F.); (Y.L.); (B.S.); (V.K.); (I.P.); (J.Z.); (J.J.S.); (B.G.)
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Wang X, Lam JY, Chen L, Au SWN, To KKW, Yuen KY, Kok KH. Mining of linear B cell epitopes of SARS-CoV-2 ORF8 protein from COVID-19 patients. Emerg Microbes Infect 2021; 10:1016-1023. [PMID: 34003073 PMCID: PMC8186430 DOI: 10.1080/22221751.2021.1931465] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Given the on-going SARS-CoV-2 pandemic, identification of immunogenic targets against the viral protein will provide crucial advances towards the development of sensitive diagnostic tools and vaccination strategies. Our previous study has found that ORF8 protein of SARS-CoV-2 is highly immunogenic and shows high sensitivity in identifying COVID-19 disease. In this study, by employing overlapping linear peptides, we characterized the IgG immunodominant regions on SARS-CoV-2 ORF8 protein that are seropositive in the sera from SARS-CoV-2-infected patients. The major immunogenic epitopes are localized at (1) N-termini alpha helix, (2) the resides spanning beta 2 and 3 sheets, and (3) the loop between beta 4 and 5 sheets. Additionally, hamster model infected by SARS-CoV-2 further validates the seropositivity of the linear epitopes in vivo, demonstrating a potential application of the linear peptide-based immunization strategy. Taken together, identification and validation of these B-cell linear epitopes will provide insights into the design of serological diagnostics and peptide-based vaccination approach against this pandemic virus of high priority.
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Affiliation(s)
- Xiaohui Wang
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Joy-Yan Lam
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Linlei Chen
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Shannon Wing-Ngor Au
- School of Life Sciences, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Kelvin K W To
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, People's Republic of China.,State Key Laboratory for Emerging Infectious Diseases, The University of Hong Kong, Hong Kong SAR, People's Republic of China.,Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Kwok-Yung Yuen
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, People's Republic of China.,State Key Laboratory for Emerging Infectious Diseases, The University of Hong Kong, Hong Kong SAR, People's Republic of China.,Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Kin-Hang Kok
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, People's Republic of China.,State Key Laboratory for Emerging Infectious Diseases, The University of Hong Kong, Hong Kong SAR, People's Republic of China.,Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong SAR, People's Republic of China.,AIDS Institute, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, People's Republic of China
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