Induction of specific human cytotoxic T cells using dendritic cells transduced with an adenovector encoding rat epidermal growth factor receptor 2

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Abstract

This study demonstrates the ability to generate antigen-specific cytotoxic T cells (CTLs) against HER2 using a xenoantigenic immune stimulation strategy. Dendritic cells (DCs) were transduced with an adenovirus vector incorporating full-length cDNA for rat (xenoantigen) epidermal growth factor receptor 2 (Adv-HER2). Stimulation of autologous T cells with Adv-HER2 infected DCs led to enhanced HER2-specific reactivity as assessed by quantitative real-time polymerase chain reaction (qRT-PCR) for T cell IFN-γ mRNA. In ELISPOT and intracellular cytokine staining (ICS) assays, CD8 + CTLs induced by Adv-HER2 transduced DCs released IFN-γ following stimulation with irradiated autologous DCs infected with Adv-HER2 or loaded with a human prostate cancer cell line (LNCaP) lysate. DCs pulsed with HER2 peptides were less stimulatory than Adv-HER2 transduced DCs. HER2 DC induced CTL lysed HER2 + HLA-A2 + tumor cells (MCF-7); significantly reduced lysis occurred in HER2 + HLA-A2 - tumor cells (SKOV-3), and the NK cell sensitive cell line K-562.

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APA

Suresh, K., Scheid, E., Klotz, L., Venkateswaran, V., Gauldie, J., & Foley, R. (2011). Induction of specific human cytotoxic T cells using dendritic cells transduced with an adenovector encoding rat epidermal growth factor receptor 2. International Journal of Oncology, 39(4), 907–913. https://doi.org/10.3892/ijo.2011.1124

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