期刊
JOURNAL OF IMMUNOLOGY
卷 168, 期 4, 页码 1547-1551出版社
AMER ASSOC IMMUNOLOGISTS
DOI: 10.4049/jimmunol.168.4.1547
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Mice infected with the murine coronavirus, mouse hepatitis virus, strain JHM (MHV) develop an immune-mediated demyelinating encephalomyelitis. We showed previously that adoptive transfer of MHV-immune splenocytes depleted of either CD4 or CD8 T cells to infected RAG1(-/-) recipients (mice deficient in recombination activation gene 1) resulted in demyelination. herein we show that transfer of CDS T cell-enriched splenocytes from MHV-immune IFN-gamma(-/-) donors resulted in a substantial decrease in demyelination (4.8% of the white matter of the spinal cord compared with 26.3% in those receiving cells from C57BL/6 donors). Similar numbers of lymphocytes were present in the CNS of recipients of either C57BL/6 or IFN-gamma(-/-) CD8 T cells, suggesting that IFN-gamma was not crucial for lymphocyte entry into the CNS. Rather, IFN-gamma was critical for optimal activation or migration of macrophages or microglia into the white matter in the context of CDS T cell-mediated demyelination.
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