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Stepanova E, Isakova-Sivak I, Mezhenskaya D, Niskanen S, Matyushenko V, Bazhenova E, Rak A, Wong PF, Prokopenko P, Kotomina T, Krutikova E, Legotskiy S, Neterebskii B, Ostroukhova T, Sivak K, Orshanskaya Y, Yakovlev K, Rudenko L. Expression of the SARS-CoV-2 receptor-binding domain by live attenuated influenza vaccine virus as a strategy for designing a bivalent vaccine against COVID-19 and influenza. Virol J 2024; 21:82. [PMID: 38589848 PMCID: PMC11003101 DOI: 10.1186/s12985-024-02350-w] [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: 01/09/2024] [Accepted: 03/22/2024] [Indexed: 04/10/2024] Open
Abstract
Influenza and SARS-CoV-2 are two major respiratory pathogens that cocirculate in humans and cause serious illness with the potential to exacerbate disease in the event of co-infection. To develop a bivalent vaccine, capable of protecting against both infections, we inserted the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein into hemagglutinin (HA) molecule or into the open reading frame of the truncated nonstructural protein 1 (NS1) of live attenuated influenza vaccine (LAIV) virus and assessed phenotypic characteristics of the rescued LAIV-RBD viruses, as well as their immunogenicity in mouse and Syrian hamster animal models. A panel of 9 recombinant LAIV-RBD viruses was rescued using the A/Leningrad/17 backbone. Notably, only two variants with RBD insertions into the HA molecule could express sufficient quantities of RBD protein in infected MDCK cells. Intranasal immunization of mice induced high levels of anti-influenza antibody responses in all chimeric LAIV-RBD viruses, which was comparable to the LAIV virus vector. The RBD-specific antibody responses were most pronounced in the variant expressing RBD194 fragment as a chimeric HA protein. This candidate was further tested in Syrian hamsters and was shown to be immunogenic and capable of protecting animals against both infections.
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Affiliation(s)
| | | | - Daria Mezhenskaya
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Sergei Niskanen
- Joint-Stock Company «BIOCAD» (JSC «BIOCAD») Saint Petersburg, Intracity Municipality the Settlement of Strelna, the Settlement of Strelna, ul. Svyazi, d. 38, str. 1, pomeshch. 89, Saint Petersburg, 198515, Russia
| | | | | | - Alexandra Rak
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Pei Fong Wong
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Polina Prokopenko
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Tatiana Kotomina
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Elena Krutikova
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Sergei Legotskiy
- Joint-Stock Company «BIOCAD» (JSC «BIOCAD») Saint Petersburg, Intracity Municipality the Settlement of Strelna, the Settlement of Strelna, ul. Svyazi, d. 38, str. 1, pomeshch. 89, Saint Petersburg, 198515, Russia
| | - Bogdan Neterebskii
- Joint-Stock Company «BIOCAD» (JSC «BIOCAD») Saint Petersburg, Intracity Municipality the Settlement of Strelna, the Settlement of Strelna, ul. Svyazi, d. 38, str. 1, pomeshch. 89, Saint Petersburg, 198515, Russia
| | - Tatiana Ostroukhova
- Joint-Stock Company «BIOCAD» (JSC «BIOCAD») Saint Petersburg, Intracity Municipality the Settlement of Strelna, the Settlement of Strelna, ul. Svyazi, d. 38, str. 1, pomeshch. 89, Saint Petersburg, 198515, Russia
| | - Konstantin Sivak
- Smorodintsev Research Institute of Influenza, Saint Petersburg, 197376, Russia
| | - Yana Orshanskaya
- Smorodintsev Research Institute of Influenza, Saint Petersburg, 197376, Russia
| | - Kirill Yakovlev
- Smorodintsev Research Institute of Influenza, Saint Petersburg, 197376, Russia
| | - Larisa Rudenko
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
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Rak A, Isakova-Sivak I, Rudenko L. Overview of Nucleocapsid-Targeting Vaccines against COVID-19. Vaccines (Basel) 2023; 11:1810. [PMID: 38140214 PMCID: PMC10747980 DOI: 10.3390/vaccines11121810] [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: 11/04/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023] Open
Abstract
The new SARS-CoV-2 coronavirus, which emerged in late 2019, is a highly variable causative agent of COVID-19, a contagious respiratory disease with potentially severe complications. Vaccination is considered the most effective measure to prevent the spread and complications of this infection. Spike (S) protein-based vaccines were very successful in preventing COVID-19 caused by the ancestral SARS-CoV-2 strain; however, their efficacy was significantly reduced when coronavirus variants antigenically different from the original strain emerged in circulation. This is due to the high variability of this major viral antigen caused by escape from the immunity caused by the infection or vaccination with spike-targeting vaccines. The nucleocapsid protein (N) is a much more conserved SARS-CoV-2 antigen than the spike protein and has therefore attracted the attention of scientists as a promising target for broad-spectrum vaccine development. Here, we summarized the current data on various N-based COVID-19 vaccines that have been tested in animal challenge models or clinical trials. Despite the high conservatism of the N protein, escape mutations gradually occurring in the N sequence can affect its protective properties. During the three years of the pandemic, at least 12 mutations have arisen in the N sequence, affecting more than 40 known immunogenic T-cell epitopes, so the antigenicity of the N protein of recent SARS-CoV-2 variants may be altered. This fact should be taken into account as a limitation in the development of cross-reactive vaccines based on N-protein.
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Affiliation(s)
- Alexandra Rak
- Department of Virology, Institute of Experimental Medicine, St. Petersburg 197022, Russia; (I.I.-S.); (L.R.)
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Goshina A, Matyushenko V, Mezhenskaya D, Rak A, Katelnikova A, Gusev D, Rudenko L, Isakova-Sivak I. RDE Treatment Prevents Non-Specific Detection of SARS-CoV-2- and Influenza-Specific IgG Antibodies in Heat-Inactivated Serum Samples. Antibodies (Basel) 2023; 12:39. [PMID: 37366655 DOI: 10.3390/antib12020039] [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: 05/01/2023] [Revised: 05/28/2023] [Accepted: 06/12/2023] [Indexed: 06/28/2023] Open
Abstract
Assessing the levels of serum IgG antibodies is widely used to measure immunity to influenza and the new severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) after natural infection or vaccination with specific vaccines, as well as to study immune responses to these viruses in animal models. For safety reasons, sometimes serum specimens collected from infected individuals are subjected to heat inactivation at 56 °C to reduce the risk of infecting personnel during serological studies. However, this procedure may affect the level of virus-specific antibodies, making the results of antibody immunoassays uninterpretable. Here, we evaluated the effect of the heat inactivation of human, ferret and hamster serum samples on the binding of IgG antibodies to the influenza and SARS-CoV-2 antigens. For this, serum samples of naive and immune hosts were analyzed in three variants: (i) untreated sera, (ii) heated at 56 °C for 1 h, and (iii) treated with receptor-destroying enzyme (RDE). The samples were studied through an in-house enzyme-linked immunosorbent assay (ELISA) using whole influenza virus or recombinant proteins corresponding to nucleocapsid (N) protein and the receptor-binding domain of SARS-CoV-2 Spike (RBD) as antigens. We demonstrated that the heat inactivation of the naive serum samples of various hosts can lead to false-positive results, while RDE treatment abolished the effect of the non-specific binding of IgG antibodies to the viral antigens. Furthermore, RDE also significantly decreased the level of virus-specific IgG antibodies in SARS-CoV-2 and influenza-immune sera of humans and animals, although it is unknown whether it actually removes true virus-specific IgG antibodies or only non-specifically binding artifacts. Nevertheless, we suggest that the RDE treatment of human and animal sera may be useful in preventing false-positive results in various immunoassays, while also neutralizing infectious virus, since the standard protocol for the use of RDE also includes heating the sample at 56 °C.
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Affiliation(s)
- Arina Goshina
- Department of Virology, Institute of Experimental Medicine, 197376 Saint Petersburg, Russia
| | - Victoria Matyushenko
- Department of Virology, Institute of Experimental Medicine, 197376 Saint Petersburg, Russia
| | - Daria Mezhenskaya
- Department of Virology, Institute of Experimental Medicine, 197376 Saint Petersburg, Russia
| | - Alexandra Rak
- Department of Virology, Institute of Experimental Medicine, 197376 Saint Petersburg, Russia
| | - Anastasia Katelnikova
- Department of Toxicology and Microbiology, Institute of Preclinical Research Ltd., 188663 Saint Petersburg, Russia
| | - Denis Gusev
- Botkin Infectious Diseases Hospital, Piskarovskiy Ave 49, 195067 Saint Petersburg, Russia
| | - Larisa Rudenko
- Department of Virology, Institute of Experimental Medicine, 197376 Saint Petersburg, Russia
| | - Irina Isakova-Sivak
- Department of Virology, Institute of Experimental Medicine, 197376 Saint Petersburg, Russia
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Wang Y, Xu J, Shi L, Yang H, Wang Y. A Meta-Analysis on the Association between Peptic Ulcer Disease and COVID-19 Severity. Vaccines (Basel) 2023; 11:1087. [PMID: 37376476 DOI: 10.3390/vaccines11061087] [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: 03/17/2023] [Revised: 05/26/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
The association between peptic ulcer disease and the severity of coronavirus disease 2019 (COVID-19) is inconclusive across individual studies. Thus, this study aimed to investigate whether there was a significant association between peptic ulcer disease and COVID-19 severity through a meta-analysis. The electronic databases (Web of Science, Wiley, Springer, EMBASE, Elsevier, Cochrane Library, Scopus and PubMed) were retrieved for all eligible studies. The Stata 11.2 software was used for all statistical analyses. The pooled odds ratio (OR) with a 95% confidence interval (CI) was calculated by a random-effects meta-analysis model. The heterogeneity was evaluated by the inconsistency index (I2) and Cochran's Q test. Egger's analysis and Begg's analysis were conducted to evaluate the publication bias. Meta-regression analysis and subgroup analysis were done to explore the potential source of heterogeneity. Totally, our findings based on confounding variables-adjusted data indicated that there was no significant association between peptic ulcer disease and the higher risk for COVID-19 severity (pooled OR = 1.17, 95% CI: 0.97-1.41) based on 15 eligible studies with 4,533,426 participants. When the subgroup analysis was performed by age (mean or median), there was a significant association between peptic ulcer disease and a higher risk for COVID-19 severity among studies with age ≥ 60 years old (pooled OR = 1.15, 95% CI: 1.01-1.32), but not among studies with age < 60 years old (pooled OR = 1.16, 95% CI: 0.89-1.50). Our meta-analysis showed that there was a significant association between peptic ulcer disease and a higher risk for COVID-19 severity among older patients but not among younger patients.
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Affiliation(s)
- Ying Wang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Jie Xu
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Liqin Shi
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
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Martín Sánchez FJ, Martínez-Sellés M, Molero García JM, Moreno Guillén S, Rodríguez-Artalejo FJ, Ruiz-Galiana J, Cantón R, De Lucas Ramos P, García-Botella A, García-Lledó A, Hernández-Sampelayo T, Gómez-Pavón J, González Del Castillo J, Martín-Delgado MC, Bouza E. Insights for COVID-19 in 2023. REVISTA ESPANOLA DE QUIMIOTERAPIA : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE QUIMIOTERAPIA 2023. [PMID: 36510683 DOI: 10.3701/req/059.2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Predictions for a near end of the pandemic by the World Health Organization should be interpreted with caution. Current evidence indicates that the efficacy of a fourth dose of classical mRNA vaccines (BT162b2 or mRNA-1273) is low and short-lived in preventing SARS-CoV-2 infection in its predominant variant (Omicron). However, its efficacy is high against severe symptomatic infection, hospitalization and death. The new vaccines being introduced are bivalent and active against the Omicron variants. Potential new vaccines to be introduced in the coming year include a vaccine based on a recombinant protein that emulates the receptor binding domain of the Spike protein under development by the Spanish company Hipra, as well as vaccines for nasal or oral administration. Available information suggests that vaccines against COVID-19 can be administered in association with influenza vaccination without particular complications. New drugs against COVID-19, both antiviral and anti-inflammatory, are under investigation, but this does not seem to be the case with monoclonal antibodies. The indication to use masks in some circumstances will be maintained next year in view of the accumulation of scientific data on their efficacy. Finally, the long COVID or Post-COVID syndrome may continue to affect a very high proportion of patients who have had the disease, requiring combined diagnostic and therapeutic resources.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - E Bouza
- Servicio de Microbiología Clínica y Enfermedades Infecciosas del Hospital General Universitario Gregorio Marañón, Universidad Complutense. CIBERES. Ciber de Enfermedades Respiratorias. Madrid, Spain.
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Wang Y, Jin Y, Yang H. Intensive Care during the COVID-19 Pandemic. Vaccines (Basel) 2023; 11:vaccines11010125. [PMID: 36679970 PMCID: PMC9864290 DOI: 10.3390/vaccines11010125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 12/31/2022] [Indexed: 01/06/2023] Open
Abstract
The novel coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has resulted in a sudden sharp rise in hospitalizations for pneumonia with multiorgan disease [...].
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Focosi D. From Co-Administration to Co-Formulation: The Race for New Vaccines against COVID-19 and Other Respiratory Viruses. Vaccines (Basel) 2023; 11:vaccines11010109. [PMID: 36679954 PMCID: PMC9860680 DOI: 10.3390/vaccines11010109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 12/30/2022] [Indexed: 01/04/2023] Open
Abstract
Combined (concomitant or synchronous) vaccination is crucial to increasing the compliance rate during mass campaigns by reducing the time to deployment (i [...].
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Affiliation(s)
- Daniele Focosi
- North-Western Tuscany Blood Bank, Pisa University Hospital, 56124 Pisa, Italy
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Stepanova E, Isakova-Sivak I, Rudenko L. Options for the development of a bivalent vaccine against SARS-CoV-2 and influenza. Expert Rev Vaccines 2022; 21:1533-1535. [PMID: 36004567 DOI: 10.1080/14760584.2022.2117692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Ekaterina Stepanova
- Department of Virology, Institute of Experimental Medicine, Saint Petersburg, Russia
| | - Irina Isakova-Sivak
- Department of Virology, Institute of Experimental Medicine, Saint Petersburg, Russia
| | - Larisa Rudenko
- Department of Virology, Institute of Experimental Medicine, Saint Petersburg, Russia
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