BST-2/tetherin: viral tether, viral sensor or both?

Future Virol

Vaccine & Gene Therapy Institute, Oregon Health & Science University, 505 NW 185th Avenue, Beaverton, OR 97006, USA.

Published: November 2013

AI Article Synopsis

  • BST-2/tetherin is known for preventing the release of enveloped viruses by 'tethering' them to infected cells.
  • Recent studies reveal that it can also activate NF-κB, a key factor that promotes the expression of inflammatory and survival proteins.
  • The article discusses the role of BST-2 in NF-κB activation and its potential implications for HIV gene regulation.

Article Abstract

In the fields of virology and innate immunity, BST-2/tetherin is well known for its ability to block the egress of enveloped viruses from infected cells. This appears to be accomplished by 'tethering' virions to the cell surface, thereby limiting virion release. In the past year, several groups have discovered that BST-2/tetherin can activate NF-κB, a transcriptional activator that leads to the rapid expression of both proinflammatory cytokines and proteins involved in cell survival. While this new BST-2 function has been interpreted as a possible viral-sensing mechanism, there may also be broader implications for HIV gene regulation. This article reviews the evidence for BST-2-dependent NF-κB activation, and explores the significance of these exciting new results.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3880411PMC
http://dx.doi.org/10.2217/fvl.13.96DOI Listing

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