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Journal of Virology, October 2001, p. 9909-9917, Vol. 75, No. 20
The Wistar Institute, Philadelphia,
Pennsylvania
Received 10 April 2001/Accepted 13 July 2001
The earliest events within the peripheral mammalian nervous
system that cause herpes simplex virus type 1 (HSV-1) to
reactivate from latency are unknown but are highly likely to include
altered regulation of cellular transcription factors. Using gene array analysis, we have examined the changes that occur in cellular mRNA
levels in mouse trigeminal ganglia following explantation, a stimulus
that results in HSV-1 reactivation from latency. We have detected both
increased and decreased expression levels of particular cellular
transcripts, which include RNAs encoding neuronal factors,
transcription factors, and factors involved in the cell cycle.
Among the transcription factors that are upregulated is Bcl-3, a
coactivator for NF
0022-538X/01/$04.00+0 DOI: 10.1128/JVI.75.20.9909-9917.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Gene Array Analysis Reveals Changes in Peripheral Nervous System
Gene Expression following Stimuli That Result in Reactivation of
Latent Herpes Simplex Virus Type 1: Induction of Transcription
Factor Bcl-3
B. We have confirmed these increases in
Bcl-3 transcription levels using reverse transcription-PCR and S1
nuclease protection assays. In addition, we have shown Bcl-3
upregulation at the protein level. Importantly, Bcl-3 RNA levels were
found to increase specifically in neuronal cells within the trigeminal
ganglia. We discuss a potential role for this factor in upregulating
ICP0 transcription, which is an important viral event for initiation of
HSV-1 reactivation.
*
Corresponding author. Mailing address: The Wistar
Institute, 3601 Spruce St., Room 389, Philadelphia, PA 19104-4268. Phone: (215) 898-3922. Fax: (215) 898-0663. E-mail:
berger{at}wistar.upenn.edu.
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