Recombinant Modified Vaccinia Virus Ankara Expressing the Spike Glycoprotein of Severe Acute Respiratory Syndrome Coronavirus Induces Protective Neutralizing Antibodies Primarily Targeting the Receptor Binding Region
Identifieur interne : 004682 ( Main/Exploration ); précédent : 004681; suivant : 004683Recombinant Modified Vaccinia Virus Ankara Expressing the Spike Glycoprotein of Severe Acute Respiratory Syndrome Coronavirus Induces Protective Neutralizing Antibodies Primarily Targeting the Receptor Binding Region
Auteurs : Zhiwei Chen ; Linqi Zhang ; Chuan Qin ; Lei Ba ; Christopher E. Yi ; Fengwen Zhang ; Qiang Wei ; Tian He ; Wenjie Yu ; Jian Yu ; Hong Gao ; Xinming Tu ; Agegnehu Gettie ; Michael Farzan ; Kwok-Yung Yuen ; David D. HoSource :
- Journal of Virology [ 0022-538X ] ; 2005.
Descripteurs français
- KwdFr :
- Animaux, Anticorps antiviraux (biosynthèse), Antigènes viraux (), Antigènes viraux (génétique), Carboxypeptidases (physiologie), Cartographie épitopique, Glycoprotéine de spicule des coronavirus, Glycoprotéines membranaires (), Glycoprotéines membranaires (génétique), Glycoprotéines membranaires (immunologie), Gènes viraux, Lapins, Macaca mulatta, Peptidyl-Dipeptidase A, Protéines de l'enveloppe virale (), Protéines de l'enveloppe virale (génétique), Protéines de l'enveloppe virale (immunologie), Recombinaison génétique, Récepteurs viraux (physiologie), Structure tertiaire des protéines, Tests de neutralisation, Vaccins antiviraux (administration et posologie), Vaccins antiviraux (génétique), Vaccins antiviraux (immunologie), Vecteurs génétiques, Virus de la vaccine (génétique), Virus du SRAS (génétique), Virus du SRAS (immunologie).
- MESH :
- administration et posologie : Vaccins antiviraux.
- biosynthèse : Anticorps antiviraux.
- génétique : Antigènes viraux, Glycoprotéines membranaires, Protéines de l'enveloppe virale, Vaccins antiviraux, Virus de la vaccine, Virus du SRAS.
- immunologie : Glycoprotéines membranaires, Protéines de l'enveloppe virale, Vaccins antiviraux, Virus du SRAS.
- physiologie : Carboxypeptidases, Récepteurs viraux.
- Animaux, Antigènes viraux, Cartographie épitopique, Glycoprotéine de spicule des coronavirus, Glycoprotéines membranaires, Gènes viraux, Lapins, Macaca mulatta, Peptidyl-Dipeptidase A, Protéines de l'enveloppe virale, Recombinaison génétique, Structure tertiaire des protéines, Tests de neutralisation, Vecteurs génétiques.
English descriptors
- KwdEn :
- Animals, Antibodies, Viral (biosynthesis), Antigens, Viral (chemistry), Antigens, Viral (genetics), Carboxypeptidases (physiology), Epitope Mapping, Genes, Viral, Genetic Vectors, Macaca mulatta, Membrane Glycoproteins (chemistry), Membrane Glycoproteins (genetics), Membrane Glycoproteins (immunology), Neutralization Tests, Peptidyl-Dipeptidase A, Protein Structure, Tertiary, Rabbits, Receptors, Virus (physiology), Recombination, Genetic, SARS Virus (genetics), SARS Virus (immunology), Spike Glycoprotein, Coronavirus, Vaccinia virus (genetics), Viral Envelope Proteins (chemistry), Viral Envelope Proteins (genetics), Viral Envelope Proteins (immunology), Viral Vaccines (administration & dosage), Viral Vaccines (genetics), Viral Vaccines (immunology).
- MESH :
- chemical , administration & dosage : Viral Vaccines.
- chemical , biosynthesis : Antibodies, Viral.
- chemical , chemistry : Antigens, Viral, Membrane Glycoproteins, Viral Envelope Proteins.
- chemical , genetics : Antigens, Viral, Membrane Glycoproteins, Viral Envelope Proteins, Viral Vaccines.
- chemical , immunology : Membrane Glycoproteins, Viral Envelope Proteins, Viral Vaccines.
- chemical , physiology : Carboxypeptidases, Receptors, Virus.
- genetics : SARS Virus, Vaccinia virus.
- immunology : SARS Virus.
- Animals, Epitope Mapping, Genes, Viral, Genetic Vectors, Macaca mulatta, Neutralization Tests, Peptidyl-Dipeptidase A, Protein Structure, Tertiary, Rabbits, Recombination, Genetic, Spike Glycoprotein, Coronavirus.
Abstract
Immunization with a killed or inactivated viral vaccine provides significant protection in animals against challenge with certain corresponding pathogenic coronaviruses (CoVs). However, the promise of this approach in humans is hampered by serious concerns over the risk of leaking live severe acute respiratory syndrome (SARS) viruses. In this study, we generated a SARS vaccine candidate by using the live-attenuated modified vaccinia virus Ankara (MVA) as a vector. The full-length SARS-CoV envelope Spike (S) glycoprotein gene was introduced into the deletion III region of the MVA genome. The newly generated recombinant MVA, ADS-MVA, is replication incompetent in mammalian cells and highly immunogenic in terms of inducing potent neutralizing antibodies in mice, rabbits, and monkeys. After two intramuscular vaccinations with ADS-MVA alone, the 50% inhibitory concentration in serum was achieved with reciprocal sera dilutions of more than 1,000- to 10,000-fold in these animals. Using fragmented S genes as immunogens, we also mapped a neutralizing epitope in the region of N-terminal 400 to 600 amino acids of the S glycoprotein (S400-600), which overlaps with the angiotensin-converting enzyme 2 (ACE2) receptor-binding region (RBR; S318-510). Moreover, using a recombinant soluble RBR-Fc protein, we were able to absorb and remove the majority of the neutralizing antibodies despite observing that the full S protein tends to induce a broader spectrum of neutralizing activities in comparison with fragmented S proteins. Our data suggest that a major mechanism for neutralizing SARS-CoV likely occurs through blocking the interaction between virus and the cellular receptor ACE2. In addition, ADS-MVA induced potent immune responses which very likely protected Chinese rhesus monkeys from pathogenic SARS-CoV challenge.
Url:
DOI: 10.1128/JVI.79.5.2678-2688.2005
PubMed: 15708987
PubMed Central: 548443
Affiliations:
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Le document en format XML
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Recombinant Modified Vaccinia Virus Ankara Expressing the Spike Glycoprotein of Severe Acute Respiratory Syndrome Coronavirus Induces Protective Neutralizing Antibodies Primarily Targeting the Receptor Binding Region</title>
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<series><title level="j">Journal of Virology</title>
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<term>Antibodies, Viral (biosynthesis)</term>
<term>Antigens, Viral (chemistry)</term>
<term>Antigens, Viral (genetics)</term>
<term>Carboxypeptidases (physiology)</term>
<term>Epitope Mapping</term>
<term>Genes, Viral</term>
<term>Genetic Vectors</term>
<term>Macaca mulatta</term>
<term>Membrane Glycoproteins (chemistry)</term>
<term>Membrane Glycoproteins (genetics)</term>
<term>Membrane Glycoproteins (immunology)</term>
<term>Neutralization Tests</term>
<term>Peptidyl-Dipeptidase A</term>
<term>Protein Structure, Tertiary</term>
<term>Rabbits</term>
<term>Receptors, Virus (physiology)</term>
<term>Recombination, Genetic</term>
<term>SARS Virus (genetics)</term>
<term>SARS Virus (immunology)</term>
<term>Spike Glycoprotein, Coronavirus</term>
<term>Vaccinia virus (genetics)</term>
<term>Viral Envelope Proteins (chemistry)</term>
<term>Viral Envelope Proteins (genetics)</term>
<term>Viral Envelope Proteins (immunology)</term>
<term>Viral Vaccines (administration & dosage)</term>
<term>Viral Vaccines (genetics)</term>
<term>Viral Vaccines (immunology)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Animaux</term>
<term>Anticorps antiviraux (biosynthèse)</term>
<term>Antigènes viraux ()</term>
<term>Antigènes viraux (génétique)</term>
<term>Carboxypeptidases (physiologie)</term>
<term>Cartographie épitopique</term>
<term>Glycoprotéine de spicule des coronavirus</term>
<term>Glycoprotéines membranaires ()</term>
<term>Glycoprotéines membranaires (génétique)</term>
<term>Glycoprotéines membranaires (immunologie)</term>
<term>Gènes viraux</term>
<term>Lapins</term>
<term>Macaca mulatta</term>
<term>Peptidyl-Dipeptidase A</term>
<term>Protéines de l'enveloppe virale ()</term>
<term>Protéines de l'enveloppe virale (génétique)</term>
<term>Protéines de l'enveloppe virale (immunologie)</term>
<term>Recombinaison génétique</term>
<term>Récepteurs viraux (physiologie)</term>
<term>Structure tertiaire des protéines</term>
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<term>Vaccins antiviraux (administration et posologie)</term>
<term>Vaccins antiviraux (génétique)</term>
<term>Vaccins antiviraux (immunologie)</term>
<term>Vecteurs génétiques</term>
<term>Virus de la vaccine (génétique)</term>
<term>Virus du SRAS (génétique)</term>
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<keywords scheme="MESH" type="chemical" qualifier="administration & dosage" xml:lang="en"><term>Viral Vaccines</term>
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<term>Viral Envelope Proteins</term>
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<term>Viral Envelope Proteins</term>
<term>Viral Vaccines</term>
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<term>Viral Envelope Proteins</term>
<term>Viral Vaccines</term>
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<term>Protéines de l'enveloppe virale</term>
<term>Vaccins antiviraux</term>
<term>Virus de la vaccine</term>
<term>Virus du SRAS</term>
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<keywords scheme="MESH" qualifier="immunologie" xml:lang="fr"><term>Glycoprotéines membranaires</term>
<term>Protéines de l'enveloppe virale</term>
<term>Vaccins antiviraux</term>
<term>Virus du SRAS</term>
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<term>Récepteurs viraux</term>
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<keywords scheme="MESH" xml:lang="en"><term>Animals</term>
<term>Epitope Mapping</term>
<term>Genes, Viral</term>
<term>Genetic Vectors</term>
<term>Macaca mulatta</term>
<term>Neutralization Tests</term>
<term>Peptidyl-Dipeptidase A</term>
<term>Protein Structure, Tertiary</term>
<term>Rabbits</term>
<term>Recombination, Genetic</term>
<term>Spike Glycoprotein, Coronavirus</term>
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<front><div type="abstract" xml:lang="en"><p>Immunization with a killed or inactivated viral vaccine provides significant protection in animals against challenge with certain corresponding pathogenic coronaviruses (CoVs). However, the promise of this approach in humans is hampered by serious concerns over the risk of leaking live severe acute respiratory syndrome (SARS) viruses. In this study, we generated a SARS vaccine candidate by using the live-attenuated modified vaccinia virus Ankara (MVA) as a vector. The full-length SARS-CoV envelope Spike (S) glycoprotein gene was introduced into the deletion III region of the MVA genome. The newly generated recombinant MVA, ADS-MVA, is replication incompetent in mammalian cells and highly immunogenic in terms of inducing potent neutralizing antibodies in mice, rabbits, and monkeys. After two intramuscular vaccinations with ADS-MVA alone, the 50% inhibitory concentration in serum was achieved with reciprocal sera dilutions of more than 1,000- to 10,000-fold in these animals. Using fragmented S genes as immunogens, we also mapped a neutralizing epitope in the region of N-terminal 400 to 600 amino acids of the S glycoprotein (S400-600), which overlaps with the angiotensin-converting enzyme 2 (ACE2) receptor-binding region (RBR; S318-510). Moreover, using a recombinant soluble RBR-Fc protein, we were able to absorb and remove the majority of the neutralizing antibodies despite observing that the full S protein tends to induce a broader spectrum of neutralizing activities in comparison with fragmented S proteins. Our data suggest that a major mechanism for neutralizing SARS-CoV likely occurs through blocking the interaction between virus and the cellular receptor ACE2. In addition, ADS-MVA induced potent immune responses which very likely protected Chinese rhesus monkeys from pathogenic SARS-CoV challenge.</p>
</div>
</front>
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<affiliations><list></list>
<tree><noCountry><name sortKey="Ba, Lei" sort="Ba, Lei" uniqKey="Ba L" first="Lei" last="Ba">Lei Ba</name>
<name sortKey="Chen, Zhiwei" sort="Chen, Zhiwei" uniqKey="Chen Z" first="Zhiwei" last="Chen">Zhiwei Chen</name>
<name sortKey="Farzan, Michael" sort="Farzan, Michael" uniqKey="Farzan M" first="Michael" last="Farzan">Michael Farzan</name>
<name sortKey="Gao, Hong" sort="Gao, Hong" uniqKey="Gao H" first="Hong" last="Gao">Hong Gao</name>
<name sortKey="Gettie, Agegnehu" sort="Gettie, Agegnehu" uniqKey="Gettie A" first="Agegnehu" last="Gettie">Agegnehu Gettie</name>
<name sortKey="He, Tian" sort="He, Tian" uniqKey="He T" first="Tian" last="He">Tian He</name>
<name sortKey="Ho, David D" sort="Ho, David D" uniqKey="Ho D" first="David D." last="Ho">David D. Ho</name>
<name sortKey="Qin, Chuan" sort="Qin, Chuan" uniqKey="Qin C" first="Chuan" last="Qin">Chuan Qin</name>
<name sortKey="Tu, Xinming" sort="Tu, Xinming" uniqKey="Tu X" first="Xinming" last="Tu">Xinming Tu</name>
<name sortKey="Wei, Qiang" sort="Wei, Qiang" uniqKey="Wei Q" first="Qiang" last="Wei">Qiang Wei</name>
<name sortKey="Yi, Christopher E" sort="Yi, Christopher E" uniqKey="Yi C" first="Christopher E." last="Yi">Christopher E. Yi</name>
<name sortKey="Yu, Jian" sort="Yu, Jian" uniqKey="Yu J" first="Jian" last="Yu">Jian Yu</name>
<name sortKey="Yu, Wenjie" sort="Yu, Wenjie" uniqKey="Yu W" first="Wenjie" last="Yu">Wenjie Yu</name>
<name sortKey="Yuen, Kwok Yung" sort="Yuen, Kwok Yung" uniqKey="Yuen K" first="Kwok-Yung" last="Yuen">Kwok-Yung Yuen</name>
<name sortKey="Zhang, Fengwen" sort="Zhang, Fengwen" uniqKey="Zhang F" first="Fengwen" last="Zhang">Fengwen Zhang</name>
<name sortKey="Zhang, Linqi" sort="Zhang, Linqi" uniqKey="Zhang L" first="Linqi" last="Zhang">Linqi Zhang</name>
</noCountry>
</tree>
</affiliations>
</record>
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