Serveur d'exploration SRAS

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Highly infectious SARS-CoV pseudotyped virus reveals the cell tropism and its correlation with receptor expression.

Identifieur interne : 005322 ( Main/Exploration ); précédent : 005321; suivant : 005323

Highly infectious SARS-CoV pseudotyped virus reveals the cell tropism and its correlation with receptor expression.

Auteurs : Yuchun Nie [République populaire de Chine] ; Peigang Wang ; Xuanling Shi ; Guangwen Wang ; Jian Chen ; Aihua Zheng ; Wei Wang ; Zai Wang ; Xiuxia Qu ; Min Luo ; Lei Tan ; Xijun Song ; Xiaolei Yin ; Jianguo Chen ; Mingxiao Ding ; Hongkui Deng

Source :

RBID : pubmed:15358126

Descripteurs français

English descriptors

Abstract

Studies of SARS coronavirus (SARS-CoV)-the causative agent of severe acute respiratory syndrome (SARS)-have been hampered by its high transmission rate and the pathogenicity of this virus. To permit analysis of the host range and entry mechanism of SARS-CoV, we incorporated the humanized SARS-CoV spike (S) glycoprotein into HIV particles to generate a highly infectious SARS-CoV pseudotyped virus. The infection on Vero E6-a permissive cell line to SARS-CoV-could be neutralized by sera from convalescent SARS patients, and the entry was a pH-dependent process. With these highly infectious SARS-CoV pseudotypes, several cell lines derived from various tissues were revealed as susceptible to SARS-CoV, which were highly corresponding to the expression pattern of virus's receptor angiotensin-converting enzyme 2 (ACE2). In addition, we also demonstrated angiotensin 1 converting enzyme (ACE)-the homologue of ACE2 could not function as a receptor for SARS-CoV.

DOI: 10.1016/j.bbrc.2004.07.060
PubMed: 15358126


Affiliations:


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<term>Receptors, Virus</term>
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<div type="abstract" xml:lang="en">Studies of SARS coronavirus (SARS-CoV)-the causative agent of severe acute respiratory syndrome (SARS)-have been hampered by its high transmission rate and the pathogenicity of this virus. To permit analysis of the host range and entry mechanism of SARS-CoV, we incorporated the humanized SARS-CoV spike (S) glycoprotein into HIV particles to generate a highly infectious SARS-CoV pseudotyped virus. The infection on Vero E6-a permissive cell line to SARS-CoV-could be neutralized by sera from convalescent SARS patients, and the entry was a pH-dependent process. With these highly infectious SARS-CoV pseudotypes, several cell lines derived from various tissues were revealed as susceptible to SARS-CoV, which were highly corresponding to the expression pattern of virus's receptor angiotensin-converting enzyme 2 (ACE2). In addition, we also demonstrated angiotensin 1 converting enzyme (ACE)-the homologue of ACE2 could not function as a receptor for SARS-CoV.</div>
</front>
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