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Molecular biology and immunoregulation of human neurotropic JC virus in CNS
Journal article   Peer reviewed

Molecular biology and immunoregulation of human neurotropic JC virus in CNS

Thersa M Sweet, Luis Del Valle and Kamel Khalili
Journal of cellular physiology, v 191(3), pp 249-256
Jun 2002
PMID: 12012320

Abstract

Central Nervous System - immunology Central Nervous System - virology Gene Expression Regulation - physiology HIV-1 - physiology Humans Immune System - physiology Immunosuppression JC Virus - genetics JC Virus - immunology Leukoencephalopathy, Progressive Multifocal - genetics Leukoencephalopathy, Progressive Multifocal - immunology Leukoencephalopathy, Progressive Multifocal - virology Molecular Biology Transcriptional Activation Virus Activation Virus Replication
The human polyomavirus, JC virus (JCV), provides an excellent model system to investigate the reciprocal interaction of the immune and nervous systems. Infection with JCV occurs during childhood and the virus remains in the latent state with no apparent clinical symptoms. However, under immunosuppressed conditions, the virus enters the lytic cycle and upon cytolytic destruction of glial cells, causes the fatal demyelinating disease of the central nervous system (CNS), named progressive multifocal leukoencephalopathy (PML). In this short review, we discuss the molecular pathogenesis of PML by highlighting the role of the immune system in modulating JCV gene activation and replication, and the latency/reactivation of this virus upon immunosuppression. Further, due to the higher incidence of PML among AIDS patients, we further elaborate on the cross-talk between JCV and HIV-1 by direct and indirect pathways that lead to enhanced expression of the JCV genome.

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Web of Science research areas
Cell Biology
Physiology
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