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Rescue of SARS-CoV-2 from a single bacterial artificial chromosome

bioRxiv, ISSN: 2692-8205
2020
  • 5
    Citations
  • 0
    Usage
  • 0
    Captures
  • 1
    Mentions
  • 11
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    5
    • Citation Indexes
      5
      • CrossRef
        5
  • Mentions
    1
    • News Mentions
      1
      • News
        1
  • Social Media
    11
    • Shares, Likes & Comments
      11
      • Facebook
        11

Most Recent News

Global foundation awards Texas Biomed $1 million to conduct large-scale rodent testing of human monoclonal antibodies to combat SARS-CoV-2

Newswise — San Antonio, Texas (Nov. 19, 2020) –  (Texas Biomed) in San Antonio, Texas, was awarded $1 million from the Bill & Melinda Gates

Article Description

An infectious coronavirus disease 2019 (COVID-19) emerged in the city of Wuhan (China) in December 2019, causing a pandemic that has dramatically impacted public health and socioeconomic activities worldwide. A previously unknown coronavirus, Severe Acute Respiratory Syndrome CoV-2 (SARS-CoV-2), has been identified as the causative agent of COVID-19. To date, there are no United States (US) Food and Drug Administration (FDA)approved vaccines or therapeutics available for the prevention or treatment of SARS-CoV-2 infection and/or associated COVID-19 disease, which has triggered a large influx of scientific efforts to develop countermeasures to control SARS-CoV-2 spread. To contribute to these efforts, we have developed an infectious cDNA clone of the SARS-CoV-2 USA-WA1/2020 strain based on the use of a bacterial artificial chromosome (BAC). Recombinant (r)SARS-CoV-2 was readily rescued by transfection of the BAC into Vero E6 cells. Importantly, the BAC-derived rSARS-CoV-2 exhibited growth properties and plaque sizes in cultured cells comparable to those of the SARS-CoV-2 natural isolate. Likewise, rSARS-CoV-2 showed similar levels of replication to that of the natural isolate in nasal turbinates and lungs of infected golden Syrian hamsters. This is, to our knowledge, the first BAC based reverse genetics system for the generation of infectious rSARS-CoV-2 that displays similar features in vivo to that of a natural viral isolate. This SARS-CoV-2 BAC-based reverse genetics will facilitate studies addressing several important questions in the biology of SARS-CoV-2, as well as the identification of antivirals and development of vaccines for the treatment of SARS-CoV-2 infection and associated COVID-19 disease.

Bibliographic Details

Ye, Chengjin; Chiem, Kevin; Park, Jun-Gyu; Oladunni, Fatai; Platt, Roy Neal; Anderson, Tim; Almazan, Fernando; de la Torre, Juan Carlos; Martinez-Sobrido, Luis

Cold Spring Harbor Laboratory

Biochemistry, Genetics and Molecular Biology; Agricultural and Biological Sciences; Immunology and Microbiology; Neuroscience; Pharmacology, Toxicology and Pharmaceutics

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