SrasV1, Main, Exploration, bibRecord, 004E59

Cinanserin is an inhibitor of the 3C-like proteinase of severe acute respiratory syndrome coronavirus and strongly reduces virus replication in vitro

Identifieur interne : 004E59 ( Main/Exploration ); précédent : 004E58; suivant : 004E60

Cinanserin is an inhibitor of the 3C-like proteinase of severe acute respiratory syndrome coronavirus and strongly reduces virus replication in vitro

Source :

Journal of virology [ 0022-538X ] ; 2005.

RBID : Pascal:05-0248689

Descripteurs français

Pascal (Inist)
- Coronavirus, Peptidases, Replication in vitro, Microbiologie, Virologie, Cinansérine, Syndrome respiratoire aigu sévère.

English descriptors

KwdEn :
- Cinanserin, Coronavirus, In vitro replication, Microbiology, Peptidases, Severe acute respiratory syndrome, Virology.

Abstract

The 3C-like proteinase (3CL^pro) of severe acute respiratory syndrome-associated coronavirus (SARS-CoV) is one of the most promising targets for anti-SARS-CoV drugs due to its crucial role in the viral life cycle. In this study, a database containing structural information of more than 8,000 existing drugs was virtually screened by a docking approach to identify potential binding molecules of SARS-CoV 3CL^pro. As a target for screening, both a homology model and the crystallographic structure of the binding pocket of the enzyme were used. Cinanserin (SQ 10,643), a well-characterized serotonin antagonist that has undergone preliminary clinical testing in humans in the 1960s, showed a high score in the screening and was chosen for further experimental evaluation. Binding of both cinanserin and its hydrochloride to bacterially expressed 3CL^pro of SARS-CoV and the related human coronavirus 229E (HCoV-229E) was demonstrated by surface plasmon resonance technology. The catalytic activity of both enzymes was inhibited with 50% inhibitory concentration (IC₅₀) values of 5 μM, as tested with a fluorogenic substrate. The antiviral activity of cinanserin was further evaluated in tissue culture assays, namely, a replicon system based on HCoV-229E and quantitative test assays with infectious SARS-CoV and HCoV-229E. All assays revealed a strong inhibition of coronavirus replication at nontoxic drug concentrations. The level of virus RNA and infectious particles was reduced by up to 4 log units, with IC₅₀ values ranging from 19 to 34 μM. These findings demonstrate that the old drug cinanserin is an inhibitor of SARS-CoV replication, acting most likely via inhibition of the 3CL proteinase.

Affiliations:

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<affiliation wicri:level="1"><inist:fA14 i1="04"><s1>School of Pharmacy, East China University of Science and Technology</s1>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Cinanserin is an inhibitor of the 3C-like proteinase of severe acute respiratory syndrome coronavirus and strongly reduces virus replication in vitro</title>
<author><name sortKey="Lili Chen" sort="Lili Chen" uniqKey="Lili Chen" last="Lili Chen">LILI CHEN</name>
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<s2>Shanghai 201203</s2>
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<country>République populaire de Chine</country>
<wicri:noRegion>Shanghai 201203</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Chunshan Gui" sort="Chunshan Gui" uniqKey="Chunshan Gui" last="Chunshan Gui">CHUNSHAN GUI</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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<country>République populaire de Chine</country>
<wicri:noRegion>Shanghai 201203</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Xiaomin Luo" sort="Xiaomin Luo" uniqKey="Xiaomin Luo" last="Xiaomin Luo">XIAOMIN LUO</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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<country>République populaire de Chine</country>
<wicri:noRegion>Shanghai 201203</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Qingang Yang" sort="Qingang Yang" uniqKey="Qingang Yang" last="Qingang Yang">QINGANG YANG</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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<country>République populaire de Chine</country>
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</author>
<author><name sortKey="Gunther, Stephan" sort="Gunther, Stephan" uniqKey="Gunther S" first="Stephan" last="Günther">Stephan Günther</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Virology, Bemhard Nocht Institute for Tropical Medicine, Bemhard-Nocht-Str. 74</s1>
<s2>20359 Hamburg</s2>
<s3>DEU</s3>
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</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>20359 Hamburg</wicri:noRegion>
<placeName><settlement type="city">Hambourg</settlement>
<region type="land" nuts="2">Hambourg</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Scandella, Elke" sort="Scandella, Elke" uniqKey="Scandella E" first="Elke" last="Scandella">Elke Scandella</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Research Department, Kantonal Hospital St. Gallon</s1>
<s2>9007 St. Gallen</s2>
<s3>CHE</s3>
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<country>Suisse</country>
<wicri:noRegion>9007 St. Gallen</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Drosten, Christian" sort="Drosten, Christian" uniqKey="Drosten C" first="Christian" last="Drosten">Christian Drosten</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Virology, Bemhard Nocht Institute for Tropical Medicine, Bemhard-Nocht-Str. 74</s1>
<s2>20359 Hamburg</s2>
<s3>DEU</s3>
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</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>20359 Hamburg</wicri:noRegion>
<placeName><settlement type="city">Hambourg</settlement>
<region type="land" nuts="2">Hambourg</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Donglu Bai" sort="Donglu Bai" uniqKey="Donglu Bai" last="Donglu Bai">DONGLU BAI</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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<country>République populaire de Chine</country>
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</affiliation>
</author>
<author><name sortKey="Xichang He" sort="Xichang He" uniqKey="Xichang He" last="Xichang He">XICHANG HE</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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<country>République populaire de Chine</country>
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</author>
<author><name sortKey="Ludewig, Burkhard" sort="Ludewig, Burkhard" uniqKey="Ludewig B" first="Burkhard" last="Ludewig">Burkhard Ludewig</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Research Department, Kantonal Hospital St. Gallon</s1>
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<country>Suisse</country>
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</author>
<author><name sortKey="Jing Chen" sort="Jing Chen" uniqKey="Jing Chen" last="Jing Chen">JING CHEN</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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</author>
<author><name sortKey="Haibin Luo" sort="Haibin Luo" uniqKey="Haibin Luo" last="Haibin Luo">HAIBIN LUO</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
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<country>République populaire de Chine</country>
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</author>
<author><name sortKey="Yiming Yang" sort="Yiming Yang" uniqKey="Yiming Yang" last="Yiming Yang">YIMING YANG</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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<author><name sortKey="Yifu Yang" sort="Yifu Yang" uniqKey="Yifu Yang" last="Yifu Yang">YIFU YANG</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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<author><name sortKey="Jianping Zou" sort="Jianping Zou" uniqKey="Jianping Zou" last="Jianping Zou">JIANPING ZOU</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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</author>
<author><name sortKey="Thiel, Volker" sort="Thiel, Volker" uniqKey="Thiel V" first="Volker" last="Thiel">Volker Thiel</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Research Department, Kantonal Hospital St. Gallon</s1>
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<country>Suisse</country>
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<author><name sortKey="Kaixian Chen" sort="Kaixian Chen" uniqKey="Kaixian Chen" last="Kaixian Chen">KAIXIAN CHEN</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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<author><name sortKey="Jianhua Shen" sort="Jianhua Shen" uniqKey="Jianhua Shen" last="Jianhua Shen">JIANHUA SHEN</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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<author><name sortKey="Xu Shen" sort="Xu Shen" uniqKey="Xu Shen" last="Xu Shen">XU SHEN</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
<s2>Shanghai 201203</s2>
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<author><name sortKey="Hualiang Jiang" sort="Hualiang Jiang" uniqKey="Hualiang Jiang" last="Hualiang Jiang">HUALIANG JIANG</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences</s1>
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<affiliation wicri:level="1"><inist:fA14 i1="04"><s1>School of Pharmacy, East China University of Science and Technology</s1>
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</analytic>
<series><title level="j" type="main">Journal of virology</title>
<title level="j" type="abbreviated">J. virol.</title>
<idno type="ISSN">0022-538X</idno>
<imprint><date when="2005">2005</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Journal of virology</title>
<title level="j" type="abbreviated">J. virol.</title>
<idno type="ISSN">0022-538X</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cinanserin</term>
<term>Coronavirus</term>
<term>In vitro replication</term>
<term>Microbiology</term>
<term>Peptidases</term>
<term>Severe acute respiratory syndrome</term>
<term>Virology</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Coronavirus</term>
<term>Peptidases</term>
<term>Replication in vitro</term>
<term>Microbiologie</term>
<term>Virologie</term>
<term>Cinansérine</term>
<term>Syndrome respiratoire aigu sévère</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">The 3C-like proteinase (3CL<sup>pro</sup>
) of severe acute respiratory syndrome-associated coronavirus (SARS-CoV) is one of the most promising targets for anti-SARS-CoV drugs due to its crucial role in the viral life cycle. In this study, a database containing structural information of more than 8,000 existing drugs was virtually screened by a docking approach to identify potential binding molecules of SARS-CoV 3CL<sup>pro</sup>
. As a target for screening, both a homology model and the crystallographic structure of the binding pocket of the enzyme were used. Cinanserin (SQ 10,643), a well-characterized serotonin antagonist that has undergone preliminary clinical testing in humans in the 1960s, showed a high score in the screening and was chosen for further experimental evaluation. Binding of both cinanserin and its hydrochloride to bacterially expressed 3CL<sup>pro</sup>
 of SARS-CoV and the related human coronavirus 229E (HCoV-229E) was demonstrated by surface plasmon resonance technology. The catalytic activity of both enzymes was inhibited with 50% inhibitory concentration (IC<sub>50</sub>
) values of 5 μM, as tested with a fluorogenic substrate. The antiviral activity of cinanserin was further evaluated in tissue culture assays, namely, a replicon system based on HCoV-229E and quantitative test assays with infectious SARS-CoV and HCoV-229E. All assays revealed a strong inhibition of coronavirus replication at nontoxic drug concentrations. The level of virus RNA and infectious particles was reduced by up to 4 log units, with IC<sub>50</sub>
 values ranging from 19 to 34 μM. These findings demonstrate that the old drug cinanserin is an inhibitor of SARS-CoV replication, acting most likely via inhibition of the 3CL proteinase.</div>
</front>
</TEI>
<affiliations><list><country><li>Allemagne</li>
<li>République populaire de Chine</li>
<li>Suisse</li>
</country>
<region><li>Hambourg</li>
</region>
<settlement><li>Hambourg</li>
</settlement>
</list>
<tree><country name="République populaire de Chine"><noRegion><name sortKey="Lili Chen" sort="Lili Chen" uniqKey="Lili Chen" last="Lili Chen">LILI CHEN</name>
</noRegion>
<name sortKey="Chunshan Gui" sort="Chunshan Gui" uniqKey="Chunshan Gui" last="Chunshan Gui">CHUNSHAN GUI</name>
<name sortKey="Donglu Bai" sort="Donglu Bai" uniqKey="Donglu Bai" last="Donglu Bai">DONGLU BAI</name>
<name sortKey="Haibin Luo" sort="Haibin Luo" uniqKey="Haibin Luo" last="Haibin Luo">HAIBIN LUO</name>
<name sortKey="Hualiang Jiang" sort="Hualiang Jiang" uniqKey="Hualiang Jiang" last="Hualiang Jiang">HUALIANG JIANG</name>
<name sortKey="Hualiang Jiang" sort="Hualiang Jiang" uniqKey="Hualiang Jiang" last="Hualiang Jiang">HUALIANG JIANG</name>
<name sortKey="Jianhua Shen" sort="Jianhua Shen" uniqKey="Jianhua Shen" last="Jianhua Shen">JIANHUA SHEN</name>
<name sortKey="Jianping Zou" sort="Jianping Zou" uniqKey="Jianping Zou" last="Jianping Zou">JIANPING ZOU</name>
<name sortKey="Jing Chen" sort="Jing Chen" uniqKey="Jing Chen" last="Jing Chen">JING CHEN</name>
<name sortKey="Kaixian Chen" sort="Kaixian Chen" uniqKey="Kaixian Chen" last="Kaixian Chen">KAIXIAN CHEN</name>
<name sortKey="Qingang Yang" sort="Qingang Yang" uniqKey="Qingang Yang" last="Qingang Yang">QINGANG YANG</name>
<name sortKey="Xiaomin Luo" sort="Xiaomin Luo" uniqKey="Xiaomin Luo" last="Xiaomin Luo">XIAOMIN LUO</name>
<name sortKey="Xichang He" sort="Xichang He" uniqKey="Xichang He" last="Xichang He">XICHANG HE</name>
<name sortKey="Xu Shen" sort="Xu Shen" uniqKey="Xu Shen" last="Xu Shen">XU SHEN</name>
<name sortKey="Yifu Yang" sort="Yifu Yang" uniqKey="Yifu Yang" last="Yifu Yang">YIFU YANG</name>
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Cinanserin is an inhibitor of the 3C-like proteinase of severe acute respiratory syndrome coronavirus and strongly reduces virus replication in vitro

Cinanserin is an inhibitor of the 3C-like proteinase of severe acute respiratory syndrome coronavirus and strongly reduces virus replication in vitro

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