Efficient generation of antigen-specific cytotoxic T cells using retrovirally transduced CD40-activated B cells - PubMed (original) (raw)

Efficient generation of antigen-specific cytotoxic T cells using retrovirally transduced CD40-activated B cells

Eisei Kondo et al. J Immunol. 2002.

Abstract

The development of rapid, efficient, and safe methods for generating Ag-specific T cells is necessary for the clinical application of adoptive immunotherapy. We show that B cells stimulated with CD40 ligand and IL-4 (CD40-B cells) can be efficiently transduced with retroviral vectors encoding a model Ag, CMV tegument protein pp65 gene, and maintain high levels of costimulatory molecules after gene transfer. CTL lines specific for pp65 were readily generated in all four healthy CMV-seropositive donors by stimulating autologous CD8(+) T cells with these transduced CD40-B cells, both of which were derived from 10 ml peripheral blood. ELISPOT assays revealed that the CTL lines used multiple HLA alleles as restricting elements. Thus, CD40-B cells transduced retrovirally with Ag-encoding cDNA can be potent APC and facilitate to generate Ag-specific CTL in vitro.

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Efficient generation of antigen-specific cytotoxic T cells using retrovirally transduced CD40-activated B cells - PubMed (original) (raw)