Inhibitory effect of mizoribine and ribavirin on the replication of severe acute respiratory syndrome (SARS)-associated coronavirus
Identifieur interne : 004E02 ( Main/Exploration ); précédent : 004E01; suivant : 004E03Inhibitory effect of mizoribine and ribavirin on the replication of severe acute respiratory syndrome (SARS)-associated coronavirus
Auteurs : Masayuki Saijo [Japon] ; Shigeru Morikawa [Japon] ; Shuetsu Fukushi [Japon] ; Tetsuya Mizutani [Japon] ; Hideki Hasegawa [Japon] ; Noriyo Nagata [Japon] ; Naoko Iwata [Japon] ; Ichiro Kurane [Japon]Source :
- Antiviral research [ 0166-3542 ] ; 2005.
Descripteurs français
- KwdFr :
- Animaux, Antiviraux (), Antiviraux (pharmacologie), Cellules Vero, Ribavirine (), Ribavirine (pharmacologie), Ribonucléosides (), Ribonucléosides (pharmacologie), Réplication virale (), Tests de sensibilité microbienne, Virus du SRAS (), Virus du SRAS (enzymologie), Virus du SRAS (génétique), Virus du SRAS (physiologie).
- MESH :
- enzymologie : Virus du SRAS.
- génétique : Virus du SRAS.
- pharmacologie : Antiviraux, Ribavirine, Ribonucléosides.
- physiologie : Virus du SRAS.
- Pascal (Inist)
- Animaux, Antiviraux, Cellules Vero, Mizoribine, Ribavirine, Ribonucléosides, Réplication, Réplication virale, Syndrome respiratoire aigu sévère, Tests de sensibilité microbienne, Virus du SRAS, Virus syndrome respiratoire aigu sévère, Relation structure activité, Antifongique, Immunodépresseur, Antiviral.
English descriptors
- KwdEn :
- Animals, Antifungal agent, Antiviral, Antiviral Agents (chemistry), Antiviral Agents (pharmacology), Chlorocebus aethiops, Immunosuppressive agent, Microbial Sensitivity Tests, Mizoribine, Replication, Ribavirin, Ribavirin (chemistry), Ribavirin (pharmacology), Ribonucleosides (chemistry), Ribonucleosides (pharmacology), SARS Virus (drug effects), SARS Virus (enzymology), SARS Virus (genetics), SARS Virus (physiology), Severe acute respiratory syndrome, Severe acute respiratory syndrome virus, Structure activity relation, Vero Cells, Virus Replication (drug effects).
- MESH :
- chemical , chemistry : Antiviral Agents, Ribavirin, Ribonucleosides.
- chemical , pharmacology : Antiviral Agents, Ribavirin, Ribonucleosides.
- drug effects : SARS Virus, Virus Replication.
- enzymology : SARS Virus.
- genetics : SARS Virus.
- physiology : SARS Virus.
- Animals, Chlorocebus aethiops, Microbial Sensitivity Tests, Vero Cells.
Abstract
The activity of inosine-5'-monophosphate dehydrogenase (IMPDH) inhibitors, mizoribine and ribavirin, against severe acute respiratory syndrome (SARS)-associated coronavirus (SARS-CoV) was determined by plaque reduction and yield reduction assays. Mizoribine and ribavirin selectively inhibited replication of SARS-CoV. The 50% inhibitory concentration (IC50) of mizoribine for SARS-CoV Frankfurt-1 and SARS-CoV HKU39849, as determined by plaque reduction was 3.5 μg/ml and 16 μg/ml, respectively, and the IC50 of ribavirin for SARS-CoV Frankfurt-1 and SARS-CoV HKU39849 was 20 μg/ml and 80 μg/ml, while the 50% cytotoxic concentration of mizoribine and ribavirin for Vero E6 cells exceeded 200 μg/ml. In a yield reduction assay, mizoribine (10 μg/ml) and ribavirin (40 μg/ml) inhibited the replication of SARS-CoV and reduced the infectious SARS-CoV titers to one-tenth or less. Mizoribine inhibited replication of SARS-CoV more strongly than ribavirin. However, neither drug could completely inhibit replication of SARS-CoV even at concentrations up to 100 μg/ml.
Affiliations:
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Le document en format XML
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<front><div type="abstract" xml:lang="en">The activity of inosine-5'-monophosphate dehydrogenase (IMPDH) inhibitors, mizoribine and ribavirin, against severe acute respiratory syndrome (SARS)-associated coronavirus (SARS-CoV) was determined by plaque reduction and yield reduction assays. Mizoribine and ribavirin selectively inhibited replication of SARS-CoV. The 50% inhibitory concentration (IC<sub>50</sub>
) of mizoribine for SARS-CoV Frankfurt-1 and SARS-CoV HKU39849, as determined by plaque reduction was 3.5 μg/ml and 16 μg/ml, respectively, and the IC<sub>50</sub>
of ribavirin for SARS-CoV Frankfurt-1 and SARS-CoV HKU39849 was 20 μg/ml and 80 μg/ml, while the 50% cytotoxic concentration of mizoribine and ribavirin for Vero E6 cells exceeded 200 μg/ml. In a yield reduction assay, mizoribine (10 μg/ml) and ribavirin (40 μg/ml) inhibited the replication of SARS-CoV and reduced the infectious SARS-CoV titers to one-tenth or less. Mizoribine inhibited replication of SARS-CoV more strongly than ribavirin. However, neither drug could completely inhibit replication of SARS-CoV even at concentrations up to 100 μg/ml.</div>
</front>
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<tree><country name="Japon"><region name="Région de Kantō"><name sortKey="Saijo, Masayuki" sort="Saijo, Masayuki" uniqKey="Saijo M" first="Masayuki" last="Saijo">Masayuki Saijo</name>
</region>
<name sortKey="Fukushi, Shuetsu" sort="Fukushi, Shuetsu" uniqKey="Fukushi S" first="Shuetsu" last="Fukushi">Shuetsu Fukushi</name>
<name sortKey="Hasegawa, Hideki" sort="Hasegawa, Hideki" uniqKey="Hasegawa H" first="Hideki" last="Hasegawa">Hideki Hasegawa</name>
<name sortKey="Iwata, Naoko" sort="Iwata, Naoko" uniqKey="Iwata N" first="Naoko" last="Iwata">Naoko Iwata</name>
<name sortKey="Kurane, Ichiro" sort="Kurane, Ichiro" uniqKey="Kurane I" first="Ichiro" last="Kurane">Ichiro Kurane</name>
<name sortKey="Mizutani, Tetsuya" sort="Mizutani, Tetsuya" uniqKey="Mizutani T" first="Tetsuya" last="Mizutani">Tetsuya Mizutani</name>
<name sortKey="Morikawa, Shigeru" sort="Morikawa, Shigeru" uniqKey="Morikawa S" first="Shigeru" last="Morikawa">Shigeru Morikawa</name>
<name sortKey="Nagata, Noriyo" sort="Nagata, Noriyo" uniqKey="Nagata N" first="Noriyo" last="Nagata">Noriyo Nagata</name>
</country>
</tree>
</affiliations>
</record>
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