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Genomic characterization and infectivity of a novel SARS-like coronavirus in Chinese bats.

Identifieur interne : 000C76 ( Main/Exploration ); précédent : 000C75; suivant : 000C77

Genomic characterization and infectivity of a novel SARS-like coronavirus in Chinese bats.

Auteurs : Dan Hu [République populaire de Chine] ; Changqiang Zhu [République populaire de Chine] ; Lele Ai [République populaire de Chine] ; Ting He [République populaire de Chine] ; Yi Wang [République populaire de Chine] ; Fuqiang Ye [République populaire de Chine] ; Lu Yang [République populaire de Chine] ; Chenxi Ding [République populaire de Chine] ; Xuhui Zhu [République populaire de Chine] ; Ruicheng Lv [République populaire de Chine] ; Jin Zhu [République populaire de Chine] ; Bachar Hassan [États-Unis] ; Youjun Feng [République populaire de Chine] ; Weilong Tan [République populaire de Chine] ; Changjun Wang [République populaire de Chine]

Source :

RBID : pubmed:30209269

Descripteurs français

English descriptors

Abstract

SARS coronavirus (SARS-CoV), the causative agent of the large SARS outbreak in 2003, originated in bats. Many SARS-like coronaviruses (SL-CoVs) have been detected in bats, particularly those that reside in China, Europe, and Africa. To further understand the evolutionary relationship between SARS-CoV and its reservoirs, 334 bats were collected from Zhoushan city, Zhejiang province, China, between 2015 and 2017. PCR amplification of the conserved coronaviral protein RdRp detected coronaviruses in 26.65% of bats belonging to this region, and this number was influenced by seasonal changes. Full genomic analyses of the two new SL-CoVs from Zhoushan (ZXC21 and ZC45) showed that their genomes were 29,732 nucleotides (nt) and 29,802 nt in length, respectively, with 13 open reading frames (ORFs). These results revealed 81% shared nucleotide identity with human/civet SARS CoVs, which was more distant than that observed previously for bat SL-CoVs in China. Importantly, using pathogenic tests, we found that the virus can reproduce and cause disease in suckling rats, and further studies showed that the virus-like particles can be observed in the brains of suckling rats by electron microscopy. Thus, this study increased our understanding of the genetic diversity of the SL-CoVs carried by bats and also provided a new perspective to study the possibility of cross-species transmission of SL-CoVs using suckling rats as an animal model.

DOI: 10.1038/s41426-018-0155-5
PubMed: 30209269


Affiliations:


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Le document en format XML

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<term>Coronavirus</term>
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<keywords scheme="MESH" qualifier="pathogénicité" xml:lang="fr">
<term>Coronavirus</term>
</keywords>
<keywords scheme="MESH" qualifier="virologie" xml:lang="fr">
<term>Chiroptera</term>
</keywords>
<keywords scheme="MESH" qualifier="virology" xml:lang="en">
<term>Chiroptera</term>
</keywords>
<keywords scheme="MESH" xml:lang="en">
<term>Animals</term>
<term>Female</term>
<term>Genome, Viral</term>
<term>Male</term>
<term>Open Reading Frames</term>
<term>Phylogeny</term>
<term>Rats</term>
<term>Virulence</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr">
<term>Animaux</term>
<term>Cadres ouverts de lecture</term>
<term>Chine</term>
<term>Coronavirus</term>
<term>Femelle</term>
<term>Génome viral</term>
<term>Mâle</term>
<term>Phylogénie</term>
<term>Protéines virales</term>
<term>Rats</term>
<term>Virulence</term>
</keywords>
<keywords scheme="Wicri" type="geographic" xml:lang="fr">
<term>République populaire de Chine</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">SARS coronavirus (SARS-CoV), the causative agent of the large SARS outbreak in 2003, originated in bats. Many SARS-like coronaviruses (SL-CoVs) have been detected in bats, particularly those that reside in China, Europe, and Africa. To further understand the evolutionary relationship between SARS-CoV and its reservoirs, 334 bats were collected from Zhoushan city, Zhejiang province, China, between 2015 and 2017. PCR amplification of the conserved coronaviral protein RdRp detected coronaviruses in 26.65% of bats belonging to this region, and this number was influenced by seasonal changes. Full genomic analyses of the two new SL-CoVs from Zhoushan (ZXC21 and ZC45) showed that their genomes were 29,732 nucleotides (nt) and 29,802 nt in length, respectively, with 13 open reading frames (ORFs). These results revealed 81% shared nucleotide identity with human/civet SARS CoVs, which was more distant than that observed previously for bat SL-CoVs in China. Importantly, using pathogenic tests, we found that the virus can reproduce and cause disease in suckling rats, and further studies showed that the virus-like particles can be observed in the brains of suckling rats by electron microscopy. Thus, this study increased our understanding of the genetic diversity of the SL-CoVs carried by bats and also provided a new perspective to study the possibility of cross-species transmission of SL-CoVs using suckling rats as an animal model.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>République populaire de Chine</li>
<li>États-Unis</li>
</country>
</list>
<tree>
<country name="République populaire de Chine">
<noRegion>
<name sortKey="Hu, Dan" sort="Hu, Dan" uniqKey="Hu D" first="Dan" last="Hu">Dan Hu</name>
</noRegion>
<name sortKey="Ai, Lele" sort="Ai, Lele" uniqKey="Ai L" first="Lele" last="Ai">Lele Ai</name>
<name sortKey="Ding, Chenxi" sort="Ding, Chenxi" uniqKey="Ding C" first="Chenxi" last="Ding">Chenxi Ding</name>
<name sortKey="Feng, Youjun" sort="Feng, Youjun" uniqKey="Feng Y" first="Youjun" last="Feng">Youjun Feng</name>
<name sortKey="He, Ting" sort="He, Ting" uniqKey="He T" first="Ting" last="He">Ting He</name>
<name sortKey="Lv, Ruicheng" sort="Lv, Ruicheng" uniqKey="Lv R" first="Ruicheng" last="Lv">Ruicheng Lv</name>
<name sortKey="Tan, Weilong" sort="Tan, Weilong" uniqKey="Tan W" first="Weilong" last="Tan">Weilong Tan</name>
<name sortKey="Wang, Changjun" sort="Wang, Changjun" uniqKey="Wang C" first="Changjun" last="Wang">Changjun Wang</name>
<name sortKey="Wang, Yi" sort="Wang, Yi" uniqKey="Wang Y" first="Yi" last="Wang">Yi Wang</name>
<name sortKey="Yang, Lu" sort="Yang, Lu" uniqKey="Yang L" first="Lu" last="Yang">Lu Yang</name>
<name sortKey="Ye, Fuqiang" sort="Ye, Fuqiang" uniqKey="Ye F" first="Fuqiang" last="Ye">Fuqiang Ye</name>
<name sortKey="Zhu, Changqiang" sort="Zhu, Changqiang" uniqKey="Zhu C" first="Changqiang" last="Zhu">Changqiang Zhu</name>
<name sortKey="Zhu, Jin" sort="Zhu, Jin" uniqKey="Zhu J" first="Jin" last="Zhu">Jin Zhu</name>
<name sortKey="Zhu, Xuhui" sort="Zhu, Xuhui" uniqKey="Zhu X" first="Xuhui" last="Zhu">Xuhui Zhu</name>
</country>
<country name="États-Unis">
<noRegion>
<name sortKey="Hassan, Bachar" sort="Hassan, Bachar" uniqKey="Hassan B" first="Bachar" last="Hassan">Bachar Hassan</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

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