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CD8+ suppressor and cytotoxic T cells recognize the same human leukocyte antigen-A2 restricted cytomegalovirus

Haiyan Qin1, George Vlad, Raffaello Cortesini

  • 1Department of Pathology, Columbia University, New York, NY 10032, USA.

Human Immunology
|October 14, 2008
PubMed

We explored the possibility that antigen-specific human CD8(+) T cells, which display cytotoxic or suppressor function, can recognize the same peptide epitope. Using the human leukocyte antigen-A0201 restricted immunodominant cytomegalovirus epitope pp65-NLVPMVATV for pulsing either mature/immunogenic or ILT3(high)ILT4(high) tolerogenic dendritic cells (DC), we generated cytotoxic and suppressor CD8(+) T-cell lines, respectively. Our data indicate that modulating the functional state of DC is crucial to the development of tolerogenic or immunogeneic peptide-specific vaccines.

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