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  1. Article: Mouse Adapted SARS-CoV-2 Model Induces "Long-COVID" Neuropathology in BALB/c Mice.

    Gressett, Timothy E / Leist, Sarah R / Ismael, Saifudeen / Talkington, Grant / Dinnon, Kenneth H / Baric, Ralph S / Bix, Gregory

    bioRxiv : the preprint server for biology

    2023  

    Abstract: The novel coronavirus SARS-CoV-2 has caused significant global morbidity and mortality and continues to burden patients with persisting neurological dysfunction. COVID-19 survivors develop debilitating symptoms to include neuro-psychological dysfunction, ...

    Abstract The novel coronavirus SARS-CoV-2 has caused significant global morbidity and mortality and continues to burden patients with persisting neurological dysfunction. COVID-19 survivors develop debilitating symptoms to include neuro-psychological dysfunction, termed "Long COVID", which can cause significant reduction of quality of life. Despite vigorous model development, the possible cause of these symptoms and the underlying pathophysiology of this devastating disease remains elusive. Mouse adapted (MA10) SARS-CoV-2 is a novel mouse-based model of COVID-19 which simulates the clinical symptoms of respiratory distress associated with SARS-CoV-2 infection in mice. In this study, we evaluated the long-term effects of MA10 infection on brain pathology and neuroinflammation. 10-week and 1-year old female BALB/cAnNHsd mice were infected intranasally with 10
    Language English
    Publishing date 2023-03-20
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.03.18.533204
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Mouse Adapted SARS-CoV-2 Model Induces "Long-COVID" Neuropathology in BALB/c Mice

    Gressett, Timothy E. / Leist, Sarah R. / Ismael, Saifudeen / Talkington, Grant / Dinnon, Kenneth H. / Baric, Ralph S. / Bix, Gregory

    bioRxiv

    Abstract: The novel coronavirus SARS-CoV-2 has caused significant global morbidity and mortality and continues to burden patients with persisting neurological dysfunction. COVID-19 survivors develop debilitating symptoms to include neuro-psychological dysfunction, ...

    Abstract The novel coronavirus SARS-CoV-2 has caused significant global morbidity and mortality and continues to burden patients with persisting neurological dysfunction. COVID-19 survivors develop debilitating symptoms to include neuro-psychological dysfunction, termed "Long COVID", which can cause significant reduction of quality of life. Despite vigorous model development, the possible cause of these symptoms and the underlying pathophysiology of this devastating disease remains elusive. Mouse adapted (MA10) SARS-CoV-2 is a novel mouse-based model of COVID-19 which simulates the clinical symptoms of respiratory distress associated with SARS-CoV-2 infection in mice. In this study, we evaluated the long-term effects of MA10 infection on brain pathology and neuroinflammation. 10-week and 1-year old female BALB/cAnNHsd mice were infected intranasally with 10<sup>4</sup> plaque-forming units (PFU) and 10<sup>3</sup> PFU of SARS-CoV-2 MA10, respectively, and the brain was examined 60 days post-infection (dpi). Immunohistochemical analysis showed a decrease in the neuronal nuclear protein NeuN and an increase in Iba-1 positive amoeboid microglia in the hippocampus after MA10 infection, indicating long-term neurological changes in a brain area which is critical for long-term memory consolidation and processing. Importantly, these changes were seen in 40-50% of infected mice, which correlates to prevalence of LC seen clinically. Our data shows for the first time that MA10 infection induces neuropathological outcomes several weeks after infection at similar rates of observed clinical prevalence of "Long COVID". These observations strengthen the MA10 model as a viable model for study of the long-term effects of SARS-CoV-2 in humans. Establishing the viability of this model is a key step towards the rapid development of novel therapeutic strategies to ameliorate neuroinflammation and restore brain function in those suffering from the persistent cognitive dysfunction of "Long-COVID".
    Keywords covid19
    Language English
    Publishing date 2023-03-20
    Publisher Cold Spring Harbor Laboratory
    Document type Article ; Online
    DOI 10.1101/2023.03.18.533204
    Database COVID19

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  3. Article ; Online: Critical ACE2 Determinants of SARS-CoV-2 and Group 2B Coronavirus Infection and Replication.

    Adams, Lily E / Dinnon, Kenneth H / Hou, Yixuan J / Sheahan, Timothy P / Heise, Mark T / Baric, Ralph S

    mBio

    2021  Volume 12, Issue 2

    Abstract: The angiotensin-converting enzyme 2 (ACE2) receptor is a major severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) host range determinant, and understanding SARS-CoV-2-ACE2 interactions will provide important insights into COVID-19 pathogenesis ... ...

    Abstract The angiotensin-converting enzyme 2 (ACE2) receptor is a major severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) host range determinant, and understanding SARS-CoV-2-ACE2 interactions will provide important insights into COVID-19 pathogenesis and animal model development. SARS-CoV-2 cannot infect mice due to incompatibility between its receptor binding domain and the murine ACE2 receptor. Through molecular modeling and empirical
    MeSH term(s) Amino Acid Sequence ; Angiotensin-Converting Enzyme 2/chemistry ; Angiotensin-Converting Enzyme 2/genetics ; Angiotensin-Converting Enzyme 2/metabolism ; Animals ; Betacoronavirus/metabolism ; Betacoronavirus/physiology ; Binding Sites ; COVID-19/virology ; Cell Line ; Coronavirus Infections/virology ; Host Specificity ; Humans ; Mice ; Models, Molecular ; Mutation ; Protein Binding ; Recombinant Proteins/chemistry ; Recombinant Proteins/genetics ; Recombinant Proteins/metabolism ; SARS-CoV-2/metabolism ; SARS-CoV-2/physiology ; Spike Glycoprotein, Coronavirus/chemistry ; Spike Glycoprotein, Coronavirus/metabolism ; Virus Replication
    Chemical Substances Recombinant Proteins ; Spike Glycoprotein, Coronavirus ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Language English
    Publishing date 2021-03-16
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2557172-2
    ISSN 2150-7511 ; 2161-2129
    ISSN (online) 2150-7511
    ISSN 2161-2129
    DOI 10.1128/mBio.03149-20
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Host Genetic Variation Impacts SARS-CoV-2 Vaccination Response in the Diversity Outbred Mouse Population.

    Cruz Cisneros, Marta C / Anderson, Elizabeth J / Hampton, Brea K / Parotti, Breantié / Sarkar, Sanjay / Taft-Benz, Sharon / Bell, Timothy A / Blanchard, Matthew / Dillard, Jacob A / Dinnon, Kenneth H / Hock, Pablo / Leist, Sarah R / Madden, Emily A / Shaw, Ginger D / West, Ande / Baric, Ralph S / Baxter, Victoria K / Pardo-Manuel de Villena, Fernando / Heise, Mark T /
    Ferris, Martin T

    Vaccines

    2024  Volume 12, Issue 1

    Abstract: The COVID-19 pandemic led to the rapid and worldwide development of highly effective vaccines against SARS-CoV-2. However, there is significant individual-to-individual variation in vaccine efficacy due to factors including viral variants, host age, ... ...

    Abstract The COVID-19 pandemic led to the rapid and worldwide development of highly effective vaccines against SARS-CoV-2. However, there is significant individual-to-individual variation in vaccine efficacy due to factors including viral variants, host age, immune status, environmental and host genetic factors. Understanding those determinants driving this variation may inform the development of more broadly protective vaccine strategies. While host genetic factors are known to impact vaccine efficacy for respiratory pathogens such as influenza and tuberculosis, the impact of host genetic variation on vaccine efficacy against COVID-19 is not well understood. To model the impact of host genetic variation on SARS-CoV-2 vaccine efficacy, while controlling for the impact of non-genetic factors, we used the Diversity Outbred (DO) mouse model. We found that DO mice immunized against SARS-CoV-2 exhibited high levels of variation in vaccine-induced neutralizing antibody responses. While the majority of the vaccinated mice were protected from virus-induced disease, similar to human populations, we observed vaccine breakthrough in a subset of mice. Importantly, we found that this variation in neutralizing antibody, virus-induced disease, and viral titer is heritable, indicating that the DO serves as a useful model system for studying the contribution of genetic variation of both vaccines and disease outcomes.
    Language English
    Publishing date 2024-01-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2703319-3
    ISSN 2076-393X
    ISSN 2076-393X
    DOI 10.3390/vaccines12010103
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Mouse Adapted SARS-CoV-2 (MA10) Viral Infection Induces Neuroinflammation in Standard Laboratory Mice.

    Amruta, Narayanappa / Ismael, Saifudeen / Leist, Sarah R / Gressett, Timothy E / Srivastava, Akhilesh / Dinnon, Kenneth H / Engler-Chiurazzi, Elizabeth B / Maness, Nicholas J / Qin, Xuebin / Kolls, Jay K / Baric, Ralph S / Bix, Gregory

    Viruses

    2022  Volume 15, Issue 1

    Abstract: Increasing evidence suggests that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection impacts neurological function both acutely and chronically, even in the absence of pronounced respiratory distress. Developing clinically relevant ... ...

    Abstract Increasing evidence suggests that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection impacts neurological function both acutely and chronically, even in the absence of pronounced respiratory distress. Developing clinically relevant laboratory mouse models of the neuropathogenesis of SARS-CoV-2 infection is an important step toward elucidating the underlying mechanisms of SARS-CoV-2-induced neurological dysfunction. Although various transgenic models and viral delivery methods have been used to study the infection potential of SARS-CoV-2 in mice, the use of commonly available laboratory mice would facilitate the study of SARS-CoV-2 neuropathology. Herein we show neuroinflammatory profiles of immunologically intact mice, C57BL/6J and BALB/c, as well as immunodeficient (
    MeSH term(s) Mice ; Male ; Female ; Animals ; SARS-CoV-2 ; COVID-19/pathology ; Lung ; Neuroinflammatory Diseases ; Mice, Inbred C57BL ; Disease Models, Animal ; Mice, Transgenic
    Language English
    Publishing date 2022-12-30
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v15010114
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Dual regulation of decorin by androgen and Hedgehog signaling during prostate morphogenesis.

    Montano, Monica / Dinnon, Kenneth H / Jacobs, Logan / Xiang, William / Iozzo, Renato V / Bushman, Wade

    Developmental dynamics : an official publication of the American Association of Anatomists

    2018  Volume 247, Issue 5, Page(s) 679–685

    Abstract: Background: Prostate ductal branching morphogenesis involves a complex spatiotemporal regulation of cellular proliferation and remodeling of the extracellular matrix (ECM) around the developing ducts. Decorin (Dcn) is a small leucine-rich proteoglycan ... ...

    Abstract Background: Prostate ductal branching morphogenesis involves a complex spatiotemporal regulation of cellular proliferation and remodeling of the extracellular matrix (ECM) around the developing ducts. Decorin (Dcn) is a small leucine-rich proteoglycan known to sequester several growth factors and to act as a tumor suppressor in prostate cancer.
    Results: Dcn expression in the developing prostate paralleled branching morphogenesis and was dynamically regulated by androgen and Hedgehog (Hh) signaling. DCN colocalized with collagen in the periductal stroma and acellular interstitium. Exogenous DCN decreased epithelial proliferation in ex vivo organ cultures of developing prostate, whereas genetic ablation of Dcn resulted in increased epithelial proliferation in the developing prostate.
    Conclusions: Dcn expression and localization in the developing prostate is consistent with a primary role in organizing collagen around the developing ducts. Regulation of Dcn expression appears to be complex, involving both androgen and Hh signaling. The growth inhibitory effect of Dcn suggests a unique linkage between a structural proteoglycan and epithelial growth regulation. This may serve to coordinate two elements of the morphogenetic process: ductal growth and organization of the collagen matrix around the nascent duct. Developmental Dynamics 247:679-685, 2018. © 2018 Wiley Periodicals, Inc.
    MeSH term(s) Animals ; Decorin/genetics ; Decorin/metabolism ; Female ; Male ; Mice ; Morphogenesis/physiology ; Organ Culture Techniques ; Organogenesis/physiology ; Prostate/embryology ; Prostate/growth & development ; Prostate/metabolism ; Signal Transduction/physiology
    Chemical Substances Decorin
    Language English
    Publishing date 2018-02-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1102541-4
    ISSN 1097-0177 ; 1058-8388
    ISSN (online) 1097-0177
    ISSN 1058-8388
    DOI 10.1002/dvdy.24619
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: A C57BL/6 Mouse model of SARS-CoV-2 infection recapitulates age- and sex-based differences in human COVID-19 disease and recovery.

    Davis, Michael / Voss, Kathleen / Turnbull, J Bryan / Gustin, Andrew T / Knoll, Megan / Muruato, Antonio / Hsiang, Tien-Ying / Dinnon, Kenneth H / Leist, Sarah R / Nickel, Katie / Baric, Ralph S / Ladiges, Warren / Akilesh, Shreeram / Smith, Kelly D / Gale, Michael

    Research square

    2022  

    Abstract: We present a comprehensive analysis of SARS-CoV-2 infection and recovery in wild type C57BL/6 mice, demonstrating that this is an ideal model of infection and recovery that accurately phenocopies acute human disease arising from the ancestral SARS-CoV-2. ...

    Abstract We present a comprehensive analysis of SARS-CoV-2 infection and recovery in wild type C57BL/6 mice, demonstrating that this is an ideal model of infection and recovery that accurately phenocopies acute human disease arising from the ancestral SARS-CoV-2. Disease severity and infection kinetics are age- and sex-dependent, as has been reported for humans, with older mice and males in particular exhibiting decreased viral clearance and increased mortality. We identified key parallels with human pathology, including intense virus positivity in bronchial epithelial cells, wide-spread alveolar involvement, recruitment of immune cells to the infected lungs, and acute bronchial epithelial cell death. Moreover, older animals experienced increased virus persistence, delayed dispersal of immune cells into lung parenchyma, and morphologic evidence of tissue damage and inflammation. Parallel analysis of SCID mice revealed that the adaptive immune response was not required for recovery from COVID disease symptoms nor early phase clearance of virus but was required for efficient clearance of virus at later stages of infection. Finally, transcriptional analyses indicated that induction and duration of key innate immune gene programs may explain differences in age-dependent disease severity. Importantly, these data demonstrate that SARS-CoV-2-mediated disease in C57BL/6 mice accurately phenocopies human disease across ages and establishes a platform for future therapeutic and genetic screens for not just SARS-CoV-2 but also novel coronaviruses that have yet to emerge.
    Language English
    Publishing date 2022-11-14
    Publishing country United States
    Document type Preprint
    DOI 10.21203/rs.3.rs-2194450/v1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Investigation of the Host Kinome Response to Coronavirus Infection Reveals PI3K/mTOR Inhibitors as Betacoronavirus Antivirals.

    Fritch, Ethan J / Mordant, Angie L / Gilbert, Thomas S K / Wells, Carrow I / Yang, Xuan / Barker, Natalie K / Madden, Emily A / Dinnon, Kenneth H / Hou, Yixuan J / Tse, Longping V / Castillo, Izabella N / Sims, Amy C / Moorman, Nathaniel J / Lakshmanane, Premkumar / Willson, Timothy M / Herring, Laura E / Graves, Lee M / Baric, Ralph S

    Journal of proteome research

    2023  Volume 22, Issue 10, Page(s) 3159–3177

    Abstract: Host kinases play essential roles in the host cell cycle, innate immune signaling, the stress response to viral infection, and inflammation. Previous work has demonstrated that coronaviruses specifically target kinase cascades to subvert host cell ... ...

    Abstract Host kinases play essential roles in the host cell cycle, innate immune signaling, the stress response to viral infection, and inflammation. Previous work has demonstrated that coronaviruses specifically target kinase cascades to subvert host cell responses to infection and rely upon host kinase activity to phosphorylate viral proteins to enhance replication. Given the number of kinase inhibitors that are already FDA approved to treat cancers, fibrosis, and other human disease, they represent an attractive class of compounds to repurpose for host-targeted therapies against emerging coronavirus infections. To further understand the host kinome response to betacoronavirus infection, we employed multiplex inhibitory bead mass spectrometry (MIB-MS) following MERS-CoV and SARS-CoV-2 infection of human lung epithelial cell lines. Our MIB-MS analyses revealed activation of mTOR and MAPK signaling following MERS-CoV and SARS-CoV-2 infection, respectively. SARS-CoV-2 host kinome responses were further characterized using paired phosphoproteomics, which identified activation of MAPK, PI3K, and mTOR signaling. Through chemogenomic screening, we found that clinically relevant PI3K/mTOR inhibitors were able to inhibit coronavirus replication at nanomolar concentrations similar to direct-acting antivirals. This study lays the groundwork for identifying broad-acting, host-targeted therapies to reduce betacoronavirus replication that can be rapidly repurposed during future outbreaks and epidemics. The proteomics, phosphoproteomics, and MIB-MS datasets generated in this study are available in the Proteomics Identification Database (PRIDE) repository under project identifiers PXD040897 and PXD040901.
    MeSH term(s) Humans ; Antiviral Agents/pharmacology ; COVID-19 ; MTOR Inhibitors ; Phosphatidylinositol 3-Kinases ; SARS-CoV-2 ; Virus Replication ; Hepatitis C, Chronic ; Middle East Respiratory Syndrome Coronavirus/physiology ; TOR Serine-Threonine Kinases
    Chemical Substances Antiviral Agents ; MTOR Inhibitors ; Phosphatidylinositol 3-Kinases (EC 2.7.1.-) ; TOR Serine-Threonine Kinases (EC 2.7.11.1)
    Language English
    Publishing date 2023-08-27
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2078618-9
    ISSN 1535-3907 ; 1535-3893
    ISSN (online) 1535-3907
    ISSN 1535-3893
    DOI 10.1021/acs.jproteome.3c00182
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Adjuvant-dependent impact of inactivated SARS-CoV-2 vaccines during heterologous infection by a SARS-related coronavirus.

    Dillard, Jacob A / Taft-Benz, Sharon A / Knight, Audrey C / Anderson, Elizabeth J / Pressey, Katia D / Parotti, Breantié / Martinez, Sabian A / Diaz, Jennifer L / Sarkar, Sanjay / Madden, Emily A / De la Cruz, Gabriela / Adams, Lily E / Dinnon, Kenneth H / Leist, Sarah R / Martinez, David R / Schäfer, Alexandra / Powers, John M / Yount, Boyd L / Castillo, Izabella N /
    Morales, Noah L / Burdick, Jane / Evangelista, Mia Katrina D / Ralph, Lauren M / Pankow, Nicholas C / Linnertz, Colton L / Lakshmanane, Premkumar / Montgomery, Stephanie A / Ferris, Martin T / Baric, Ralph S / Baxter, Victoria K / Heise, Mark T

    Nature communications

    2024  Volume 15, Issue 1, Page(s) 3738

    Abstract: Whole virus-based inactivated SARS-CoV-2 vaccines adjuvanted with aluminum hydroxide have been critical to the COVID-19 pandemic response. Although these vaccines are protective against homologous coronavirus infection, the emergence of novel variants ... ...

    Abstract Whole virus-based inactivated SARS-CoV-2 vaccines adjuvanted with aluminum hydroxide have been critical to the COVID-19 pandemic response. Although these vaccines are protective against homologous coronavirus infection, the emergence of novel variants and the presence of large zoonotic reservoirs harboring novel heterologous coronaviruses provide significant opportunities for vaccine breakthrough, which raises the risk of adverse outcomes like vaccine-associated enhanced respiratory disease. Here, we use a female mouse model of coronavirus disease to evaluate inactivated vaccine performance against either homologous challenge with SARS-CoV-2 or heterologous challenge with a bat-derived coronavirus that represents a potential emerging disease threat. We show that inactivated SARS-CoV-2 vaccines adjuvanted with aluminum hydroxide can cause enhanced respiratory disease during heterologous infection, while use of an alternative adjuvant does not drive disease and promotes heterologous viral clearance. In this work, we highlight the impact of adjuvant selection on inactivated vaccine safety and efficacy against heterologous coronavirus infection.
    MeSH term(s) Animals ; COVID-19 Vaccines/immunology ; COVID-19 Vaccines/administration & dosage ; Female ; COVID-19/prevention & control ; COVID-19/immunology ; COVID-19/virology ; Mice ; Vaccines, Inactivated/immunology ; SARS-CoV-2/immunology ; Aluminum Hydroxide/administration & dosage ; Disease Models, Animal ; Adjuvants, Immunologic/administration & dosage ; Adjuvants, Vaccine ; Antibodies, Viral/immunology ; Mice, Inbred BALB C ; Humans ; Severe acute respiratory syndrome-related coronavirus/immunology
    Chemical Substances COVID-19 Vaccines ; Vaccines, Inactivated ; Aluminum Hydroxide (5QB0T2IUN0) ; Adjuvants, Immunologic ; SARS-CoV-2 inactivated vaccines ; Adjuvants, Vaccine ; Antibodies, Viral
    Language English
    Publishing date 2024-05-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-024-47450-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Newcastle disease virus (NDV) expressing the spike protein of SARS-CoV-2 as vaccine candidate.

    Sun, Weina / Leist, Sarah R / McCroskery, Stephen / Liu, Yonghong / Slamanig, Stefan / Oliva, Justine / Amanat, Fatima / Schäfer, Alexandra / Dinnon, Kenneth H / García-Sastre, Adolfo / Krammer, Florian / Baric, Ralph S / Palese, Peter

    bioRxiv : the preprint server for biology

    2020  

    Abstract: Due to the lack of protective immunity of humans towards the newly emerged SARS-CoV-2, this virus has caused a massive pandemic across the world resulting in hundreds of thousands of deaths. Thus, a vaccine is urgently needed to contain the spread of the ...

    Abstract Due to the lack of protective immunity of humans towards the newly emerged SARS-CoV-2, this virus has caused a massive pandemic across the world resulting in hundreds of thousands of deaths. Thus, a vaccine is urgently needed to contain the spread of the virus. Here, we describe Newcastle disease virus (NDV) vector vaccines expressing the spike protein of SARS-CoV-2 in its wild type or a pre-fusion membrane anchored format. All described NDV vector vaccines grow to high titers in embryonated chicken eggs. In a proof of principle mouse study, we report that the NDV vector vaccines elicit high levels of antibodies that are neutralizing when the vaccine is given intramuscularly. Importantly, these COVID-19 vaccine candidates protect mice from a mouse-adapted SARS-CoV-2 challenge with no detectable viral titer and viral antigen in the lungs.
    Research in context: Evidence before this study:
    Keywords covid19
    Language English
    Publishing date 2020-07-28
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2020.07.26.221861
    Database MEDical Literature Analysis and Retrieval System OnLINE

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