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Journal of Virology, April 2003, p. 4383-4388, Vol. 77, No. 7
0022-538X/03/$08.00+0 DOI: 10.1128/JVI.77.7.4383-4388.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.
Departments of Neurology,1 Microbiology-Immunology,2 Biochemistry, Molecular Biology and Cell Biology, Northwestern University, Evanston and Chicago, and Evanston Hospital, Evanston, Illinois 602013
Received 11 October 2002/ Accepted 2 January 2003
Theiler's murine encephalomyelitis virus (TMEV) persists in the mouse central nervous system principally in macrophages, and infected macrophages in culture undergo apoptosis. We have detected abundant apoptotic cells in perivascular cuffs and inflammatory, demyelinating lesions of SJL mice chronically infected with TMEV. T cells comprised 74% of apoptotic cells, while 8% were macrophages, 0.6% were astrocytes, and
17% remained unidentified. In situ hybridization revealed viral RNA in
1% of apoptotic cells.
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