Serveur d'exploration Chloroquine

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Chloroquine enhances replication of influenza A virus A/WSN/33 (H1N1) in dose‐, time‐, and MOI‐dependent manners in human lung epithelial cells A549

Identifieur interne : 000F71 ( Main/Exploration ); précédent : 000F70; suivant : 000F72

Chloroquine enhances replication of influenza A virus A/WSN/33 (H1N1) in dose‐, time‐, and MOI‐dependent manners in human lung epithelial cells A549

Auteurs : Liqi Wu [République populaire de Chine] ; Jianping Dai [République populaire de Chine] ; Xiangfeng Zhao [République populaire de Chine] ; Youying Chen [République populaire de Chine] ; Gefei Wang [République populaire de Chine] ; Kangsheng Li [République populaire de Chine]

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RBID : ISTEX:0923FD87BA216795E95A138DB23A9B9CFC2F3D39

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Abstract

Anti‐malaria drug, chloroquine, has been reported to be effective against influenza A virus (IAV) in vitro and used in in‐vivo experiments and clinical trial for prevention or treatment of influenza. In this study, it has been shown by immunofluorescence, hemagglutination, and plaque assays that chloroquine enhanced A/WSN/33 (H1N1) replication with pronounced cytopathic effect in dose‐, time‐, and MOI‐dependent manners in human lung epithelial cells A549. Time‐of‐addition assay showed that inhibitory effect on virus replication by chloroquine pre‐treatment was indistinctive, and virus productions were enhanced when the drug was applied after viral adsorption. The effectiveness of chloroquine as an anti‐influenza drug is questioned, and caution in its use is recommended. J. Med. Virol. 87:1096–1103, 2015. © 2015 Wiley Periodicals, Inc.

Url:
DOI: 10.1002/jmv.24135


Affiliations:


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<div type="abstract" xml:lang="en">Anti‐malaria drug, chloroquine, has been reported to be effective against influenza A virus (IAV) in vitro and used in in‐vivo experiments and clinical trial for prevention or treatment of influenza. In this study, it has been shown by immunofluorescence, hemagglutination, and plaque assays that chloroquine enhanced A/WSN/33 (H1N1) replication with pronounced cytopathic effect in dose‐, time‐, and MOI‐dependent manners in human lung epithelial cells A549. Time‐of‐addition assay showed that inhibitory effect on virus replication by chloroquine pre‐treatment was indistinctive, and virus productions were enhanced when the drug was applied after viral adsorption. The effectiveness of chloroquine as an anti‐influenza drug is questioned, and caution in its use is recommended. J. Med. Virol. 87:1096–1103, 2015. © 2015 Wiley Periodicals, Inc.</div>
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