In vitro inhibition of severe acute respiratory syndrome coronavirus by chloroquine.

In vitro inhibition of severe acute respiratory syndrome coronavirus by chloroquine.
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氯喹对严重急性呼吸综合症冠状病毒的体外抑制作用。

DOI:
10.1016/j.bbrc.2004.08.085
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发表时间:
2004-10-08
影响因子:
3.1
通讯作者:
Van Ranst M
Van Ranst M
中科院分区:
生物学4区
文献类型:
--
作者:
Keyaerts E;Vijgen L;Maes P;Neyts J;Van Ranst M

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我们报道了氯喹,一种4-氨基喹啉,作为严重急性呼吸综合征冠状病毒(SARS-CoV)复制的有效抑制剂在体外。氯喹是一种经临床批准的抗疟疾药物。我们在Vero E6细胞培养中测试了磷酸氯喹对sars - cov诱导的细胞病变的抗病毒潜力。结果表明,氯喹的抗病毒活性IC50(8.8±1.2 μM)明显低于其抑细胞活性;CC50(261.3±14.5 μM),选择性指数为30。氯喹体外抑制sars冠状病毒的IC50近似于治疗急性疟疾期间达到的氯喹血浆浓度。在感染培养物中添加氯喹可延迟至感染后5小时,抗病毒活性不会显著下降。氯喹是一种古老的抗疟疾药物,可考虑立即用于预防和治疗sars冠状病毒感染。
We report on chloroquine, a 4-amino-quinoline, as an effective inhibitor of the replication of the severe acute respiratory syndrome coronavirus (SARS-CoV) in vitro. Chloroquine is a clinically approved drug effective against malaria. We tested chloroquine phosphate for its antiviral potential against SARS-CoV-induced cytopathicity in Vero E6 cell culture. Results indicate that the IC50 of chloroquine for antiviral activity (8.8 ± 1.2 μM) was significantly lower than its cytostatic activity; CC50 (261.3 ± 14.5 μM), yielding a selectivity index of 30. The IC50 of chloroquine for inhibition of SARS-CoV in vitro approximates the plasma concentrations of chloroquine reached during treatment of acute malaria. Addition of chloroquine to infected cultures could be delayed for up to 5 h postinfection, without an important drop in antiviral activity. Chloroquine, an old antimalarial drug, may be considered for immediate use in the prevention and treatment of SARS-CoV infections.
DOI: 10.1016/s0140-6736(03)13077-2
发表时间: 2003-04-19
期刊: Lancet (London, England)
影响因子: --
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发表时间: 1988-08-01
影响因子: 3.1
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发表时间: 2002-04-01
影响因子: 3.3
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发表时间: 2004-06-04
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