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High-magnitude, virus-specific CD4 T-cell response in the central nervous system of coronavirus-infected mice



High-magnitude, virus-specific CD4 T-cell response in the central nervous system of coronavirus-infected mice



Journal of Virology 75(6): 3043-3047



The neurotropic JHM strain of mouse hepatitis virus (MHV) causes acute encephalitis and chronic demyelinating encephalomyelitis in rodents. Previous results indicated that CD8 T cells infiltrating the central nervous system (CNS) were largely antigen specific in both diseases. Herein we show that by 7 days postinoculation, nearly 30% of the CD4 T cells in the acutely infected CNS were MHV specific by using intracellular gamma interferon (IFN-gamma) staining assays. In mice with chronic demyelination, 10 to 15% of the CD4 T cells secreted IFN-gamma in response to MHV-specific peptides. Thus, these results show that infection of the CNS is characterized by a large influx of CD4 T cells specific for MHV and that these cells remain functional, as measured by cytokine secretion, in mice with chronic demyelination.

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Accession: 010752618

Download citation: RISBibTeXText

PMID: 11222733

DOI: 10.1128/jvi.75.6.3043-3047.2001


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