Mechanisms of Zoonotic Severe Acute Respiratory Syndrome Coronavirus Host Range Expansion in Human Airway Epithelium▿
Identifieur interne : 003660 ( Main/Exploration ); précédent : 003659; suivant : 003661Mechanisms of Zoonotic Severe Acute Respiratory Syndrome Coronavirus Host Range Expansion in Human Airway Epithelium▿
Auteurs : Timothy Sheahan ; Barry Rockx ; Eric Donaldson ; Amy Sims ; Raymond Pickles ; Davide Corti ; Ralph BaricSource :
- Journal of Virology [ 0022-538X ] ; 2007.
Descripteurs français
- KwdFr :
- Amorces ADN, Animaux, Cellules Vero, Cellules épithéliales (virologie), Données de séquences moléculaires, Glycoprotéine de spicule des coronavirus, Glycoprotéines membranaires (), Humains, Immunohistochimie, Phylogénie, Protéines de l'enveloppe virale (), RT-PCR, Souris, Souris de lignée BALB C, Séquence d'acides aminés, Séquence nucléotidique, Trachée (virologie), Virus du SRAS (pathogénicité), Zoonoses.
- MESH :
- pathogénicité : Virus du SRAS.
- virologie : Cellules épithéliales, Trachée.
- Amorces ADN, Animaux, Cellules Vero, Données de séquences moléculaires, Glycoprotéine de spicule des coronavirus, Glycoprotéines membranaires, Humains, Immunohistochimie, Phylogénie, Protéines de l'enveloppe virale, RT-PCR, Souris, Souris de lignée BALB C, Séquence d'acides aminés, Séquence nucléotidique, Zoonoses.
English descriptors
- KwdEn :
- Amino Acid Sequence, Animals, Base Sequence, Chlorocebus aethiops, DNA Primers, Epithelial Cells (virology), Humans, Immunohistochemistry, Membrane Glycoproteins (chemistry), Mice, Mice, Inbred BALB C, Molecular Sequence Data, Phylogeny, Reverse Transcriptase Polymerase Chain Reaction, SARS Virus (pathogenicity), Spike Glycoprotein, Coronavirus, Trachea (virology), Vero Cells, Viral Envelope Proteins (chemistry), Zoonoses.
- MESH :
- chemical , chemistry : Membrane Glycoproteins, Viral Envelope Proteins.
- chemical : DNA Primers, Spike Glycoprotein, Coronavirus.
- pathogenicity : SARS Virus.
- virology : Epithelial Cells, Trachea.
- Amino Acid Sequence, Animals, Base Sequence, Chlorocebus aethiops, Humans, Immunohistochemistry, Mice, Mice, Inbred BALB C, Molecular Sequence Data, Phylogeny, Reverse Transcriptase Polymerase Chain Reaction, Vero Cells, Zoonoses.
Abstract
In 2003, severe acute respiratory syndrome coronavirus (SARS-CoV) emerged and caused over 8,000 human cases of infection and more than 700 deaths worldwide. Zoonotic SARS-CoV likely evolved to infect humans by a series of transmission events between humans and animals for sale in China. Using synthetic biology, we engineered the spike protein (S) from a civet strain, SZ16, into our epidemic strain infectious clone, creating the chimeric virus icSZ16-S, which was infectious but yielded progeny viruses incapable of propagating in vitro. After introducing a K479N mutation within the S receptor binding domain (RBD) of SZ16, the recombinant virus (icSZ16-S K479N) replicated in Vero cells but was severely debilitated in growth. The in vitro evolution of icSZ16-S K479N on human airway epithelial (HAE) cells produced two viruses (icSZ16-S K479N D8 and D22) with enhanced growth on HAE cells and on delayed brain tumor cells expressing the SARS-CoV receptor, human angiotensin I converting enzyme 2 (hACE2). The icSZ16-S K479N D8 and D22 virus RBDs contained mutations in ACE2 contact residues, Y442F and L472F, that remodeled S interactions with hACE2. Further, these viruses were neutralized by a human monoclonal antibody (MAb), S230.15, but the parent icSZ16-S K479N strain was eight times more resistant than the mutants. These data suggest that the human adaptation of zoonotic SARS-CoV strains may select for some variants that are highly susceptible to select MAbs that bind to RBDs. The epidemic, icSZ16-S K479N, and icSZ16-S K479N D22 viruses replicate similarly in the BALB/c mouse lung, highlighting the potential use of these zoonotic spike SARS-CoVs to assess vaccine or serotherapy efficacy in vivo.
Url:
DOI: 10.1128/JVI.02041-07
PubMed: 18094188
PubMed Central: 2258931
Affiliations:
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Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Amino Acid Sequence</term>
<term>Animals</term>
<term>Base Sequence</term>
<term>Chlorocebus aethiops</term>
<term>DNA Primers</term>
<term>Epithelial Cells (virology)</term>
<term>Humans</term>
<term>Immunohistochemistry</term>
<term>Membrane Glycoproteins (chemistry)</term>
<term>Mice</term>
<term>Mice, Inbred BALB C</term>
<term>Molecular Sequence Data</term>
<term>Phylogeny</term>
<term>Reverse Transcriptase Polymerase Chain Reaction</term>
<term>SARS Virus (pathogenicity)</term>
<term>Spike Glycoprotein, Coronavirus</term>
<term>Trachea (virology)</term>
<term>Vero Cells</term>
<term>Viral Envelope Proteins (chemistry)</term>
<term>Zoonoses</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Amorces ADN</term>
<term>Animaux</term>
<term>Cellules Vero</term>
<term>Cellules épithéliales (virologie)</term>
<term>Données de séquences moléculaires</term>
<term>Glycoprotéine de spicule des coronavirus</term>
<term>Glycoprotéines membranaires ()</term>
<term>Humains</term>
<term>Immunohistochimie</term>
<term>Phylogénie</term>
<term>Protéines de l'enveloppe virale ()</term>
<term>RT-PCR</term>
<term>Souris</term>
<term>Souris de lignée BALB C</term>
<term>Séquence d'acides aminés</term>
<term>Séquence nucléotidique</term>
<term>Trachée (virologie)</term>
<term>Virus du SRAS (pathogénicité)</term>
<term>Zoonoses</term>
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<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Membrane Glycoproteins</term>
<term>Viral Envelope Proteins</term>
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<keywords scheme="MESH" type="chemical" xml:lang="en"><term>DNA Primers</term>
<term>Spike Glycoprotein, Coronavirus</term>
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<keywords scheme="MESH" qualifier="pathogenicity" xml:lang="en"><term>SARS Virus</term>
</keywords>
<keywords scheme="MESH" qualifier="pathogénicité" xml:lang="fr"><term>Virus du SRAS</term>
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<keywords scheme="MESH" qualifier="virologie" xml:lang="fr"><term>Cellules épithéliales</term>
<term>Trachée</term>
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<keywords scheme="MESH" qualifier="virology" xml:lang="en"><term>Epithelial Cells</term>
<term>Trachea</term>
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<keywords scheme="MESH" xml:lang="en"><term>Amino Acid Sequence</term>
<term>Animals</term>
<term>Base Sequence</term>
<term>Chlorocebus aethiops</term>
<term>Humans</term>
<term>Immunohistochemistry</term>
<term>Mice</term>
<term>Mice, Inbred BALB C</term>
<term>Molecular Sequence Data</term>
<term>Phylogeny</term>
<term>Reverse Transcriptase Polymerase Chain Reaction</term>
<term>Vero Cells</term>
<term>Zoonoses</term>
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<term>Cellules Vero</term>
<term>Données de séquences moléculaires</term>
<term>Glycoprotéine de spicule des coronavirus</term>
<term>Glycoprotéines membranaires</term>
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<term>RT-PCR</term>
<term>Souris</term>
<term>Souris de lignée BALB C</term>
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<front><div type="abstract" xml:lang="en"><p>In 2003, severe acute respiratory syndrome coronavirus (SARS-CoV) emerged and caused over 8,000 human cases of infection and more than 700 deaths worldwide. Zoonotic SARS-CoV likely evolved to infect humans by a series of transmission events between humans and animals for sale in China. Using synthetic biology, we engineered the spike protein (S) from a civet strain, SZ16, into our epidemic strain infectious clone, creating the chimeric virus icSZ16-S, which was infectious but yielded progeny viruses incapable of propagating in vitro. After introducing a K479N mutation within the S receptor binding domain (RBD) of SZ16, the recombinant virus (icSZ16-S K479N) replicated in Vero cells but was severely debilitated in growth. The in vitro evolution of icSZ16-S K479N on human airway epithelial (HAE) cells produced two viruses (icSZ16-S K479N D8 and D22) with enhanced growth on HAE cells and on delayed brain tumor cells expressing the SARS-CoV receptor, human angiotensin I converting enzyme 2 (hACE2). The icSZ16-S K479N D8 and D22 virus RBDs contained mutations in ACE2 contact residues, Y442F and L472F, that remodeled S interactions with hACE2. Further, these viruses were neutralized by a human monoclonal antibody (MAb), S230.15, but the parent icSZ16-S K479N strain was eight times more resistant than the mutants. These data suggest that the human adaptation of zoonotic SARS-CoV strains may select for some variants that are highly susceptible to select MAbs that bind to RBDs. The epidemic, icSZ16-S K479N, and icSZ16-S K479N D22 viruses replicate similarly in the BALB/c mouse lung, highlighting the potential use of these zoonotic spike SARS-CoVs to assess vaccine or serotherapy efficacy in vivo.</p>
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<affiliations><list></list>
<tree><noCountry><name sortKey="Baric, Ralph" sort="Baric, Ralph" uniqKey="Baric R" first="Ralph" last="Baric">Ralph Baric</name>
<name sortKey="Corti, Davide" sort="Corti, Davide" uniqKey="Corti D" first="Davide" last="Corti">Davide Corti</name>
<name sortKey="Donaldson, Eric" sort="Donaldson, Eric" uniqKey="Donaldson E" first="Eric" last="Donaldson">Eric Donaldson</name>
<name sortKey="Pickles, Raymond" sort="Pickles, Raymond" uniqKey="Pickles R" first="Raymond" last="Pickles">Raymond Pickles</name>
<name sortKey="Rockx, Barry" sort="Rockx, Barry" uniqKey="Rockx B" first="Barry" last="Rockx">Barry Rockx</name>
<name sortKey="Sheahan, Timothy" sort="Sheahan, Timothy" uniqKey="Sheahan T" first="Timothy" last="Sheahan">Timothy Sheahan</name>
<name sortKey="Sims, Amy" sort="Sims, Amy" uniqKey="Sims A" first="Amy" last="Sims">Amy Sims</name>
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