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  • Title: The predominance of CD8+ T cells after infection with measles virus suggests a role for CD8+ class I MHC-restricted cytotoxic T lymphocytes (CTL) in recovery from measles. Clonal analyses of human CD8+ class I MHC-restricted CTL.
    Author: van Binnendijk RS, Poelen MC, Kuijpers KC, Osterhaus AD, Uytdehaag FG.
    Journal: J Immunol; 1990 Mar 15; 144(6):2394-9. PubMed ID: 2107259.
    Abstract:
    Stimulation of PBMC, in children recovering from acute measles, with autologous EBV-transformed and measles virus (MV)-infected lymphoblastoid cell lines (B-LCL) expanded primarily MV-specific CD8+ T cells. A large number of CD8+ T cell clones were obtained either by passaging of bulk cultures at limiting dilutions or by direct cloning of PBMC without previous stimulation in bulk culture. The MV-specific CD8+ T cell clones responding in a proliferative and a CTL assay were found to be class I MHC restricted. In contrast, CD4+ MV-specific T cell clones, which were generated by the same protocol, recognized MV in association with class II MHC molecules. Analysis of processing requirements for Ag presentation to CD8+ and CD4+ T cell clones, measured by the effect of chloroquine in a proliferative T cell response, revealed that both types of T cells recognized MV Ag processed via the endogenous/cytoplasmic pathway. Thus, these studies indicate that, as in most other viral infections and in contrast to previous suggestions, the class I MHC-restricted CTL response by CD8+ T cells may be an important factor in the control and elimination of MV infection. Therefore, the role proposed for CD4+ class II-restricted T cells in recovery from measles needs to be reevaluated.
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