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  • 1
    Language: English
    In: Journal of Clinical Virology, 2009, Vol.46(1), pp.55-60
    Description: For the medical management, it would be of great relevance to get a diagnostic marker predicting the outcome of infection. For this purpose, the envelope antigens of the individual HCV strain in a patient was tested for their capacity to induce neutralizing antibodies and cytotoxic T lymphocytes. A system for the measurement of neutralizing antibodies as well as for the stimulation of a HCV-specific T-cell response using pseudo-typed HCV particles (HCVpp) was established. A report on results of a pilot study conducted with blood specimens of 19 chronically infected patients is also presented. Neutralization of HCVpp could be measured in nearly all HCV sero-positive patient samples. Nevertheless, in more than half of the patient samples (11/19), no HCV-specific CD4+ response was detectable. In addition, HCV-specific CD8+ response was measurable in most of the patients when HCVpp were used for T-cell stimulation. Although the same antigens (HCVpp) were used, there was no relevant correlation between neutralization titers and T-cell response. Our study shows that HCVpp are appropriate antigens for specific stimulation of lymphocytes as well as for the investigation of antibody neutralization activity.
    Keywords: Humoral Immunity ; Cellular Immunity ; T-Cell Simulation ; Neutralization ; Biology
    ISSN: 1386-6532
    E-ISSN: 1873-5967
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