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Mechanisms of viral entry: sneaking in the front door.

Thorley, Jennifer A and McKeating, Jane A and Rappoport, Joshua Zachary (2010) Mechanisms of viral entry: sneaking in the front door. Protoplasma, 244 (1-4). pp. 15-24. ISSN 1615-6102

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Recent developments in methods to study virus internalisation are providing clearer insights into mechanisms used by viruses to enter host cells. The use of dominant negative constructs, specific inhibitory drugs and RNAi to selectively prevent entry through particular pathways has provided evidence for the clathrin-mediated entry of hepatitis C virus (HCV) as well as the caveolar entry of Simian Virus 40. Moreover, the ability to image and track fluorescent-labelled virus particles in real-time has begun to challenge the classical plasma membrane entry mechanisms described for poliovirus and human immunodeficiency virus. This review will cover both well-documented entry mechanisms as well as more recent discoveries in the entry pathways of enveloped and non-enveloped viruses. This will include viruses which enter the cytosol directly at the plasma membrane and those which enter via endocytosis and traversal of internal membrane barrier(s). Recent developments in imaging and inhibition of entry pathways have provided insights into the ill-defined entry mechanism of HCV, bringing it to the forefront of viral entry research. Finally, as high-affinity receptors often define viral internalisation pathways, and tropism in vivo, host membrane proteins to which viral particles specifically bind will be discussed throughout.

Type of Work:Article
Date:2010 (Publication)
School/Faculty:Colleges (2008 onwards) > College of Medical & Dental Sciences
Department:Immunity and Infection
Subjects:R Medicine (General)
QR355 Virology
QR180 Immunology
QR Microbiology
Institution:University of Birmingham
Copyright Holders:Springer-Verlag
ID Code:461
Refereed:YES
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