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Identification of influenza A nucleoprotein as an antiviral target.


ABSTRACT: Influenza A remains a significant public health challenge because of the emergence of antigenically shifted or highly virulent strains. Antiviral resistance to available drugs such as adamantanes or neuraminidase inhibitors has appeared rapidly, creating a need for new antiviral targets and new drugs for influenza virus infections. Using forward chemical genetics, we have identified influenza A nucleoprotein (NP) as a druggable target and found a small-molecule compound, nucleozin, that triggers the aggregation of NP and inhibits its nuclear accumulation. Nucleozin impeded influenza A virus replication in vitro with a nanomolar median effective concentration (EC(50)) and protected mice challenged with lethal doses of avian influenza A H5N1. Our results demonstrate that viral NP is a valid target for the development of small-molecule therapies.

SUBMITTER: Kao RY 

PROVIDER: S-EPMC7097325 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature

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Influenza A remains a significant public health challenge because of the emergence of antigenically shifted or highly virulent strains. Antiviral resistance to available drugs such as adamantanes or neuraminidase inhibitors has appeared rapidly, creating a need for new antiviral targets and new drugs for influenza virus infections. Using forward chemical genetics, we have identified influenza A nucleoprotein (NP) as a druggable target and found a small-molecule compound, nucleozin, that triggers  ...[more]

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