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Cell Host Microbe. 2010 Jun 25;7(6):427-39. doi: 10.1016/j.chom.2010.05.008.

Cellular networks involved in the influenza virus life cycle.

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Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 575 Science Drive, Madison, WI 53711, USA.


Influenza viruses cause epidemics and pandemics. Like all viruses, influenza viruses rely on the host cellular machinery to support their life cycle. Accordingly, identification of the host functions co-opted for viral replication is of interest to understand the mechanisms of the virus life cycle and to find new targets for the development of antiviral compounds. Among the various approaches used to explore host factor involvement in the influenza virus replication cycle, perhaps the most powerful is RNAi-based genome-wide screening, which has shed new light on the search for host factors involved in virus replication. In this review, we examine the cellular genes identified to date as important for influenza virus replication in genome-wide screens, assess pathways that were repeatedly identified in these studies, and discuss how these pathways might be involved in the individual steps of influenza virus replication, ultimately leading to a comprehensive understanding of the virus life cycle.

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