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Nguyen TN, Lai DC, Sillman S, Petro-Turnquist E, Weaver EA, Vu HLX. Lipid nanoparticle-encapsulated DNA vaccine confers protection against swine and human-origin H1N1 influenza viruses. mSphere 2024; 9:e0028324. [PMID: 39087764 DOI: 10.1128/msphere.00283-24] [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: 04/09/2024] [Accepted: 07/04/2024] [Indexed: 08/02/2024] Open
Abstract
In 2009, a novel swine-origin H1N1 virus emerged, causing a pandemic. The virus, known as H1N1pdm09, quickly displaced the circulating H1 lineage and became the dominant seasonal influenza A virus subtype infecting humans. Human-to-swine spillovers of the H1N1pdm09 have occurred frequently, and each occurrence has led to sustained transmission of the human-origin H1N1pdm09 within swine populations. In the present study, we developed a lipid nanoparticle-based DNA vaccine (LNP-DNA) containing the hemagglutinin gene of a swine-origin H1N1pdm09. In pigs, this LNP-DNA vaccine induced a robust antibody response after a single intramuscular immunization and protected the pigs against challenge infection with the homologous swine-origin H1N1pdm09 virus. In a mouse model, the LNP-DNA vaccine induced antibody and T-cell responses and protected mice against lethal challenge with a mouse-adapted human-origin H1N1pdm09 virus. These findings demonstrate the potential of the LNP-DNA vaccine to protect against both swine- and human-origin H1N1pdm09 viruses. IMPORTANCE Swine influenza A virus (IAV) is widespread and causes significant economic losses to the swine industry. Moreover, bidirectional transmission of IAV between swine and humans commonly occurs. Once introduced into the swine population, human-origin IAV often reassorts with endemic swine IAV, resulting in reassortant viruses. Thus, it is imperative to develop a vaccine that is not only effective against IAV strains endemic in swine but also capable of preventing the spillover of human-origin IAV. In this study, we developed a lipid nanoparticle-encapsulated DNA plasmid vaccine (LNP-DNA) that demonstrates efficacy against both swine- and human-origin H1N1 viruses. The LNP-DNA vaccines are non-infectious and non-viable, meeting the criteria to serve as a vaccine platform for rapidly updating vaccines. Collectively, this LNP-DNA vaccine approach holds great potential for alleviating the impact of IAV on the swine industry and preventing the emergence of reassortant IAV strains.
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MESH Headings
- Animals
- Influenza A Virus, H1N1 Subtype/immunology
- Influenza A Virus, H1N1 Subtype/genetics
- Vaccines, DNA/immunology
- Vaccines, DNA/administration & dosage
- Swine
- Influenza Vaccines/immunology
- Influenza Vaccines/administration & dosage
- Influenza Vaccines/genetics
- Orthomyxoviridae Infections/prevention & control
- Orthomyxoviridae Infections/immunology
- Orthomyxoviridae Infections/veterinary
- Nanoparticles/administration & dosage
- Humans
- Mice
- Swine Diseases/prevention & control
- Swine Diseases/virology
- Swine Diseases/immunology
- Antibodies, Viral/blood
- Influenza, Human/prevention & control
- Influenza, Human/immunology
- Influenza, Human/virology
- Hemagglutinin Glycoproteins, Influenza Virus/immunology
- Hemagglutinin Glycoproteins, Influenza Virus/genetics
- Female
- Mice, Inbred BALB C
- Liposomes/administration & dosage
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Affiliation(s)
- The N Nguyen
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
- School of Veterinary Medicine and Biomedical Sciences and Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Danh C Lai
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
- School of Veterinary Medicine and Biomedical Sciences and Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Sarah Sillman
- School of Veterinary Medicine and Biomedical Sciences and Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Erika Petro-Turnquist
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Eric A Weaver
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Hiep L X Vu
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
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Miron VD, Săndulescu O, Streinu-Cercel A, Florea D, Paraschiv S, Bănică L, Vlaicu O, Oțelea D, Bilașco A, Pițigoi D, Streinu-Cercel A, Drăgănescu AC. Age, comorbidity burden and late presentation are significant predictors of hospitalization length and acute respiratory failure in patients with influenza. Sci Rep 2024; 14:15563. [PMID: 38971866 PMCID: PMC11227496 DOI: 10.1038/s41598-024-66550-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 07/02/2024] [Indexed: 07/08/2024] Open
Abstract
Influenza viruses are responsible for a high number of infections and hospitalizations every year. In this study, we aimed to identify clinical and host-specific factors that influence the duration of hospitalization and the progression to acute respiratory failure (ARF) in influenza. We performed an analysis of data from a prospective active influenza surveillance study that was conducted over five seasons (2018/19 to 2022/23). A total of 1402 patients with influenza were included in the analysis, the majority of which (64.5%) were children (under 18 years), and 9.1% were elderly. At least one chronic condition was present in 29.2% of patients, and 9.9% of patients developed ARF. The median hospital stay was 4 days (IQR: 3, 6 days). The most important predictors of prolonged hospital stay and development of ARF were extremes of age (infants and elderly), presence of chronic diseases, particularly the cumulus of at least 3 chronic diseases, and late presentation to hospital. Among the chronic diseases, chronic obstructive pulmonary disease, cardiovascular disease, cancer, diabetes, obesity, and chronic kidney disease were strongly associated with a longer duration of hospitalization and occurrence of ARF. In this context, interventions aimed at chronic disease management, promoting influenza vaccination, and improving awareness and access to health services may contribute to reducing the impact of influenza not only in Romania but globally. In addition, continued monitoring of the circulation of influenza viruses is essential to limit their spread among vulnerable populations.
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Affiliation(s)
- Victor Daniel Miron
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Oana Săndulescu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania.
| | - Anca Streinu-Cercel
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Dragoș Florea
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Simona Paraschiv
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Leontina Bănică
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Ovidiu Vlaicu
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Dan Oțelea
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Anuța Bilașco
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Daniela Pițigoi
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Adrian Streinu-Cercel
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Anca Cristina Drăgănescu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
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Páez-Franco JC, Maravillas-Montero JL, Mejía-Domínguez NR, Torres-Ruiz J, Tamez-Torres KM, Pérez-Fragoso A, Germán-Acacio JM, Ponce-de-León A, Gómez-Martín D, Ulloa-Aguirre A. Metabolomics analysis identifies glutamic acid and cystine imbalances in COVID-19 patients without comorbid conditions. Implications on redox homeostasis and COVID-19 pathophysiology. PLoS One 2022; 17:e0274910. [PMID: 36126080 PMCID: PMC9488784 DOI: 10.1371/journal.pone.0274910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022] Open
Abstract
It is well known that the presence of comorbidities and age-related health issues may hide biochemical and metabolic features triggered by SARS-CoV-2 infection and other diseases associated to hypoxia, as they are by themselves chronic inflammatory conditions that may potentially disturb metabolic homeostasis and thereby negatively impact on COVID-19 progression. To unveil the metabolic abnormalities inherent to hypoxemia caused by COVID-19, we here applied gas chromatography coupled to mass spectrometry to analyze the main metabolic changes exhibited by a population of male patients less than 50 years of age with mild/moderate and severe COVID-19 without pre-existing comorbidities known to predispose to life-threatening complications from this infection. Several differences in serum levels of particular metabolites between normal controls and patients with COVID-19 as well as between mild/moderate and severe COVID-19 were identified. These included increased glutamic acid and reduced glutamine, cystine, threonic acid, and proline levels. In particular, using the entire metabolomic fingerprint obtained, we observed that glutamine/glutamate metabolism was associated with disease severity as patients in the severe COVID-19 group presented the lowest and higher serum levels of these amino acids, respectively. These data highlight the hypoxia-derived metabolic alterations provoked by SARS-CoV-2 infection in the absence of pre-existing co-morbidities as well as the value of amino acid metabolism in determining reactive oxygen species recycling pathways, which when impaired may lead to increased oxidation of proteins and cell damage. They also provide insights on new supportive therapies for COVID-19 and other disorders that involve altered redox homeostasis and lower oxygen levels that may lead to better outcomes of disease severity.
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Affiliation(s)
- José C. Páez-Franco
- Red de Apoyo a la Investigación (RAI), Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - José L. Maravillas-Montero
- Red de Apoyo a la Investigación (RAI), Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Nancy R. Mejía-Domínguez
- Red de Apoyo a la Investigación (RAI), Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Jiram Torres-Ruiz
- Emergency Medicine Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Karla M. Tamez-Torres
- Department of Infectology and Microbiology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Alfredo Pérez-Fragoso
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Juan Manuel Germán-Acacio
- Red de Apoyo a la Investigación (RAI), Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Alfredo Ponce-de-León
- Department of Infectology and Microbiology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Diana Gómez-Martín
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Alfredo Ulloa-Aguirre
- Red de Apoyo a la Investigación (RAI), Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
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