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In vitro susceptibility of 10 clinical isolates of SARS coronavirus to selected antiviral compounds

Identifieur interne : 000168 ( PascalFrancis/Curation ); précédent : 000167; suivant : 000169

In vitro susceptibility of 10 clinical isolates of SARS coronavirus to selected antiviral compounds

Auteurs : F. Chen [Hong Kong] ; K. H. Chan [Hong Kong] ; Y. Jiang [Hong Kong] ; R. Y. T. Kao [Hong Kong] ; H. T. Lu [Hong Kong] ; K. W. Fan [Hong Kong] ; V. C. C. Cheng [Hong Kong] ; W. H. W. Tsui [Hong Kong] ; I. F. N. Hung [Hong Kong] ; T. S. W. Lee [Hong Kong] ; Y. Guan [Hong Kong] ; J. S. M. Peiris [Hong Kong] ; K. Y. Yuen [Hong Kong]

Source :

RBID : Pascal:04-0464714

Descripteurs français

English descriptors

Abstract

Effective antiviral agents are urgently needed to combat the possible return of severe acute respiratory syndrome (SARS). Commercial antiviral agents and pure chemical compounds extracted from traditional Chinese medicinal herbs were screened against 10 clinical isolates of SARS coronavirus by neutralisation tests with confirmation by plaque reduction assays. Interferon-beta-la, leukocytic interferon-alpha, ribavirin, lopinavir, rimantadine, baicalin and glycyrrhizin showed antiviral activity. The two interferons were only active if the cell lines were pre-incubated with the drugs 16 h before viral inoculation. Results were confirmed by plaque reduction assays. Antiviral activity varied with the use of different cell lines. Checkerboard assays for synergy were performed showing combinations of interferon beta-1a or leukocytic interferon-alpha with ribavirin are synergistic. Since the clinical and toxicity profiles of these agents are well known, they should be considered either singly or in combination for prophylaxis or treatment of SARS in randomised placebo controlled trials in future epidemics.
pA  
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A03   1    @0 J. clin. virol.
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A08 01  1  ENG  @1 In vitro susceptibility of 10 clinical isolates of SARS coronavirus to selected antiviral compounds
A11 01  1    @1 CHEN (F.)
A11 02  1    @1 CHAN (K. H.)
A11 03  1    @1 JIANG (Y.)
A11 04  1    @1 KAO (R. Y. T.)
A11 05  1    @1 LU (H. T.)
A11 06  1    @1 FAN (K. W.)
A11 07  1    @1 CHENG (V. C. C.)
A11 08  1    @1 TSUI (W. H. W.)
A11 09  1    @1 HUNG (I. F. N.)
A11 10  1    @1 LEE (T. S. W.)
A11 11  1    @1 GUAN (Y.)
A11 12  1    @1 PEIRIS (J. S. M.)
A11 13  1    @1 YUEN (K. Y.)
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A14 03      @1 Department of Biology, Hong Kong Baptist University, Kowloon Tong @3 HKG @Z 3 aut.
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Pascal:04-0464714

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<title level="j" type="main">Journal of clinical virology</title>
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<div type="abstract" xml:lang="en">Effective antiviral agents are urgently needed to combat the possible return of severe acute respiratory syndrome (SARS). Commercial antiviral agents and pure chemical compounds extracted from traditional Chinese medicinal herbs were screened against 10 clinical isolates of SARS coronavirus by neutralisation tests with confirmation by plaque reduction assays. Interferon-beta-la, leukocytic interferon-alpha, ribavirin, lopinavir, rimantadine, baicalin and glycyrrhizin showed antiviral activity. The two interferons were only active if the cell lines were pre-incubated with the drugs 16 h before viral inoculation. Results were confirmed by plaque reduction assays. Antiviral activity varied with the use of different cell lines. Checkerboard assays for synergy were performed showing combinations of interferon beta-1a or leukocytic interferon-alpha with ribavirin are synergistic. Since the clinical and toxicity profiles of these agents are well known, they should be considered either singly or in combination for prophylaxis or treatment of SARS in randomised placebo controlled trials in future epidemics.</div>
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