Attaching zanamivir to a polymer markedly enhances its activity against drug-resistant strains of influenza a virus.
Attaching zanamivir to a polymer markedly enhances its activity against drug-resistant strains of influenza a virus.
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DOI:
10.1002/jps.22338
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发表时间:
2011-03
影响因子:
3.8
通讯作者:
Klibanov, Alexander M.
中科院分区:
文献类型:
--
作者:
Weight, Alisha K.;Haldar, Jayanta;de Cienfuegos, Luis Alvarez;Gubareva, Larisa V.;Tumpey, Terrence M.;Chen, Jianzhu;Klibanov, Alexander M.
关键词:
Effects of the commercial drug zanamivir (Relenza™) covalently attached to poly-l-glutamine on the infectivity of influenza A viruses are examined using the plaque reduction assay and binding affinity to viral neuraminidase (NA). These multivalent drug conjugates exhibit (i) up to a 20,000-fold improvement in anti-influenza potency compared with the zanamivir parent against human and avian viral strains, including both wild-type and drug-resistant mutants, and (ii) superior neuraminidase (NA) inhibition constants, especially for the mutants. These findings provide a basis for exploring polymer-attached inhibitors as more efficacious therapeutics, particularly against drug-resistant influenza strains.
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