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Barreiro A, Prenafeta A, Bech-Sabat G, Roca M, Perozo Mur E, March R, González-González L, Madrenas L, Corominas J, Fernández A, Moros A, Cañete M, Molas M, Pentinat-Pelegrin T, Panosa C, Moreno A, Puigvert Molas E, Pol Vilarrassa E, Palmada J, Garriga C, Prat Cabañas T, Iglesias-Fernández J, Vergara-Alert J, Lorca-Oró C, Roca N, Fernández-Bastit L, Rodon J, Pérez M, Segalés J, Pradenas E, Marfil S, Trinité B, Ortiz R, Clotet B, Blanco J, Díaz Pedroza J, Ampudia Carrasco R, Rosales Salgado Y, Loubat-Casanovas J, Capdevila Larripa S, Prado JG, Barretina J, Sisteré-Oró M, Cebollada Rica P, Meyerhans A, Ferrer L. Preclinical evaluation of a COVID-19 vaccine candidate based on a recombinant RBD fusion heterodimer of SARS-CoV-2. iScience 2023; 26:106126. [PMID: 36748086 PMCID: PMC9893798 DOI: 10.1016/j.isci.2023.106126] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 12/22/2022] [Accepted: 01/28/2023] [Indexed: 02/05/2023] Open
Abstract
Current COVID-19 vaccines have been associated with a decline in infection rates, prevention of severe disease, and a decrease in mortality rates. However, SARS-CoV-2 variants are continuously evolving, and development of new accessible COVID-19 vaccines is essential to mitigate the pandemic. Here, we present data on preclinical studies in mice of a receptor-binding domain (RBD)-based recombinant protein vaccine (PHH-1V) consisting of an RBD fusion heterodimer comprising the B.1.351 and B.1.1.7 SARS-CoV-2 variants formulated in SQBA adjuvant, an oil-in-water emulsion. A prime-boost immunisation with PHH-1V in BALB/c and K18-hACE2 mice induced a CD4+ and CD8+ T cell response and RBD-binding antibodies with neutralizing activity against several variants, and also showed a good tolerability profile. Significantly, RBD fusion heterodimer vaccination conferred 100% efficacy, preventing mortality in SARS-CoV-2 infected K18-hACE2 mice, but also reducing Beta, Delta and Omicron infection in lower respiratory airways. These findings demonstrate the feasibility of this recombinant vaccine strategy.
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Affiliation(s)
- Antonio Barreiro
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain,Corresponding author
| | - Antoni Prenafeta
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain,Corresponding author
| | | | - Mercè Roca
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain
| | | | - Ricard March
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain
| | | | - Laia Madrenas
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain
| | | | | | | | - Manuel Cañete
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain
| | - Mercè Molas
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain
| | | | - Clara Panosa
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain
| | | | | | | | - Jordi Palmada
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain
| | - Carme Garriga
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain
| | | | | | - Júlia Vergara-Alert
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la UAB, 08193 Cerdanyola del Vallès, Spain
| | - Cristina Lorca-Oró
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la UAB, 08193 Cerdanyola del Vallès, Spain
| | - Núria Roca
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la UAB, 08193 Cerdanyola del Vallès, Spain
| | - Leira Fernández-Bastit
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la UAB, 08193 Cerdanyola del Vallès, Spain
| | - Jordi Rodon
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la UAB, 08193 Cerdanyola del Vallès, Spain
| | - Mònica Pérez
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la UAB, 08193 Cerdanyola del Vallès, Spain
| | - Joaquim Segalés
- Universitat Autònoma de Barcelona, CReSA (IRTA-UAB), Campus de la UAB, 08193 Cerdanyola del Vallès, Spain,Departament de Sanitat i Anatomia Animals, Facultat de Veterinària, UAB, 08193 Cerdanyola del Vallès, Spain
| | - Edwards Pradenas
- IrsiCaixa. AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916 Badalona, Spain
| | - Silvia Marfil
- IrsiCaixa. AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916 Badalona, Spain
| | - Benjamin Trinité
- IrsiCaixa. AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916 Badalona, Spain
| | - Raquel Ortiz
- IrsiCaixa. AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916 Badalona, Spain
| | - Bonaventura Clotet
- IrsiCaixa. AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916 Badalona, Spain,University of Vic–Central University of Catalonia (UVic-UCC), Vic, 08500 Catalonia, Spain
| | - Julià Blanco
- IrsiCaixa. AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916 Badalona, Spain,University of Vic–Central University of Catalonia (UVic-UCC), Vic, 08500 Catalonia, Spain
| | - Jorge Díaz Pedroza
- Comparative Medicine and Bioimage Centre of Catalonia, Germans Trias i Pujol Research Institute (CMCiB-IGTP), 08916 Badalona, Spain
| | - Rosa Ampudia Carrasco
- Comparative Medicine and Bioimage Centre of Catalonia, Germans Trias i Pujol Research Institute (CMCiB-IGTP), 08916 Badalona, Spain
| | - Yaiza Rosales Salgado
- Comparative Medicine and Bioimage Centre of Catalonia, Germans Trias i Pujol Research Institute (CMCiB-IGTP), 08916 Badalona, Spain
| | - Jordina Loubat-Casanovas
- Comparative Medicine and Bioimage Centre of Catalonia, Germans Trias i Pujol Research Institute (CMCiB-IGTP), 08916 Badalona, Spain
| | - Sara Capdevila Larripa
- Comparative Medicine and Bioimage Centre of Catalonia, Germans Trias i Pujol Research Institute (CMCiB-IGTP), 08916 Badalona, Spain
| | - Julia Garcia Prado
- IrsiCaixa. AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916 Badalona, Spain,Comparative Medicine and Bioimage Centre of Catalonia, Germans Trias i Pujol Research Institute (CMCiB-IGTP), 08916 Badalona, Spain
| | - Jordi Barretina
- Comparative Medicine and Bioimage Centre of Catalonia, Germans Trias i Pujol Research Institute (CMCiB-IGTP), 08916 Badalona, Spain
| | - Marta Sisteré-Oró
- Infection Biology Laboratory, Department of Experimental and Health Sciences (DCEXS), Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain
| | - Paula Cebollada Rica
- Infection Biology Laboratory, Department of Experimental and Health Sciences (DCEXS), Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain
| | - Andreas Meyerhans
- Infection Biology Laboratory, Department of Experimental and Health Sciences (DCEXS), Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain,Catalan Institution for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Laura Ferrer
- HIPRA, Avda. La Selva, 135, Amer, 17170 Girona, Spain
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