Heemskerk MH, Schilham MW, Schoemaker HM, Spierenburg G, Spaan WJ, Boog CJ. Activation of virus-specific major histocompatibility complex class II-restricted CD8+ cytotoxic T cells in CD4-deficient mice.
Eur J Immunol 1995;
25:1109-12. [PMID:
7737281 PMCID:
PMC7163489 DOI:
10.1002/eji.1830250438]
[Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/1994] [Revised: 02/06/1995] [Accepted: 02/08/1995] [Indexed: 01/26/2023]
Abstract
Acute enteritic or respiratory disease is a consequence of coronavirus infection in man and rodents. Mouse hepatitis virus, stain A59 (MHV-A59) causes acute hepatitis in mice and rats and induces a response of major histocompatibility complex (MHC) class II-restricted CD4+ cytotoxic T cells, protecting mice against acute infection. In the present study we show that MHV-A59 infection of mice that lack a functional CD4 gene activates effector cells of the CD8+ phenotype. These cytotoxic T cells lyse virus-infected target cells in a MHC class II-restricted fashion. The results indicate that CD8+ T cells have the potential to utilize MHC class II as restriction element, illustrating that the immune system can effectively deal with evading microorganisms, such as viruses which down-regulate MHC class I.
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