IMR Press / FBL / Volume 14 / Issue 14 / DOI: 10.2741/3595

Frontiers in Bioscience-Landmark (FBL) is published by IMR Press from Volume 26 Issue 5 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with Frontiers in Bioscience.

Open Access Article
Virus-induced neuronal dysfunction and degeneration
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1 Dept of Anatomy and Cell Biology. University of Illinois at Chicago, Chicago, IL 60612, USA
2 Dept Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA

Academic Editor: Leonardo Tonelli

Front. Biosci. (Landmark Ed) 2009, 14(14), 5239–5259; https://doi.org/10.2741/3595
Published: 1 June 2009
(This article belongs to the Special Issue Infectious diseases and brain function)
Abstract

In general, virus infections of the brain are rather rare in the immune competent host. However, neurotropic viruses have developed mechanisms to exploit weaknesses in immunological defense mechanisms that eventually allow them to reach and infect CNS neurons. Once in the CNS, these viruses can induce significant neuronal dysfunction and degeneration of specific neuronal populations, sometimes leading to devastating, life-threatening consequences for the host. Here, we examine viruses with the ability to infect neurons and their resulting pathologies, their modes of entry to the CNS, and the cellular and molecular alterations that these viruses induce in neuronal cells. We also discuss the importance of various pathogenic events associated with viral infection of neurons and elaborate on the implications of recent findings suggesting that neuronal cells affected by viruses undergo a "dying back" pattern of degeneration. Finally, findings of virus-induced alterations in kinase activity are discussed in the context of recent evidence linking abnormalities in kinase signaling to the pathogenesis of major human neurodegenerative conditions.

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