More than 90% of the world’s population is seropositive for the Epstein-Barr virus (EBV). EBV is associated with a number of benign and malignant diseases, as well as autoimmune disorders. Several of the EBV-associated diseases can be cured by the infusion of EBV-specific T cells. However, currently available adoptive T cell therapeutic options are still limited to few specialized centers worldwide. With the aim to improve EBV-specific immunotherapy, we investigated the CD4+ T cell response of healthy virus carriers against non-structural lytic-cycle proteins of EBV. Eight out of nine CD4+ T cell lines generated by repeated stimulation with recombinantly expressed and purified viral proteins showed specificity for the respective stimulator protein. These results provided evidence for an unexpected breadth of the EBV-specific CD4+ T cell memory response in healthy virus carriers. Furthermore our results implied a possible role of cellular autoantigens in the MHC class II-restricted immune response against EBV.
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More than 90% of the world’s population is seropositive for the Epstein-Barr virus (EBV). EBV is associated with a number of benign and malignant diseases, as well as autoimmune disorders. Several of the EBV-associated diseases can be cured by the infusion of EBV-specific T cells. However, currently available adoptive T cell therapeutic options are still limited to few specialized centers worldwide. With the aim to improve EBV-specific immunotherapy, we investigated the CD4+ T cell response of h...
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