[HTML][HTML] Transduction of human T cells with a novel T-cell receptor confers anti-HCV reactivity

Y Zhang, Y Liu, KM Moxley, L Golden-Mason… - PLoS …, 2010 - journals.plos.org
Y Zhang, Y Liu, KM Moxley, L Golden-Mason, MG Hughes Jr, T Liu, MHM Heemskerk…
PLoS pathogens, 2010journals.plos.org
Hepatitis C Virus (HCV) is a major public health concern, with no effective vaccines currently
available and 3% of the world's population being infected. Despite the existence of both B-
and T-cell immunity in HCV-infected patients, chronic viral infection and HCV-related
malignancies progress. Here we report the identification of a novel HCV TCR from an HLA-
A2-restricted, HCV NS3: 1073–1081-reactive CTL clone isolated from a patient with chronic
HCV infection. We characterized this HCV TCR by expressing it in human T cells and …
Hepatitis C Virus (HCV) is a major public health concern, with no effective vaccines currently available and 3% of the world's population being infected. Despite the existence of both B- and T-cell immunity in HCV-infected patients, chronic viral infection and HCV-related malignancies progress. Here we report the identification of a novel HCV TCR from an HLA-A2-restricted, HCV NS3:1073–1081-reactive CTL clone isolated from a patient with chronic HCV infection. We characterized this HCV TCR by expressing it in human T cells and analyzed the function of the resulting HCV TCR-transduced cells. Our results indicate that both the HCV TCR-transduced CD4+ and CD8+ T cells recognized the HCV NS3:1073–1081 peptide-loaded targets and HCV+ hepatocellular carcinoma cells (HCC) in a polyfunctional manner with cytokine (IFN-γ, IL-2, and TNF-α) production as well as cytotoxicity. Tumor cell recognition by HCV TCR transduced CD8 Jurkat cells and CD4+ PBL-derived T cells indicated this TCR was CD8-independent, a property consistent with other high affinity TCRs. HCV TCR-transduced T cells may be promising for the treatment of patients with chronic HCV infections.
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