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    • 7. 发明授权
    • Recombinant vector expressing multiple costimulatory molecules and uses thereof
    • 表达多种共刺激分子的重组载体及其用途
    • US07771715B2
    • 2010-08-10
    • US11723666
    • 2007-03-21
    • Jeffrey SchlomJames HodgeDennis Panicali
    • Jeffrey SchlomJames HodgeDennis Panicali
    • A61K48/00C12N15/00
    • C12N15/86A61K35/12A61K39/00A61K48/00A61K2039/57C07K14/70503C07K14/70525C07K14/70528C07K14/70532C12N2710/24043C12N2710/24143Y02A50/41Y02A50/412Y02A50/464Y02A50/478
    • The present invention is a recombinant vector encoding and expressing at least three or more costimulatory molecules. The recombinant vector may additionally contain a gene encoding one or more target antigens or immunological epitope thereof. The synergistic effect of these costimulatory molecules on the enhanced activation of T cells is demonstrated. The degree of T-cell activation using recombinant vectors containing genes encoding three costimulatory molecules was far greater than the sum of recombinant vector constructs containing one costimulatory molecule and greater than the use of two costimulatory molecules. Results employing the triple costimulatory vectors were most dramatic under conditions of either low levels of first signal or low stimulator to T-cell ratios. This phenomenon was observed with both isolated CD4+ and CD8+ T cells. The recombinant vectors of the present invention are useful as immunogenes and vaccines against cancer and pathogenic micro-organisms, and in providing host cells, including dendritic cells and splenocytes with enhanced antigen-presenting functions.
    • 本发明是编码并表达至少三种或更多共刺激分子的重组载体。 重组载体可另外含有编码一种或多种靶抗原或其免疫表位的基因。 证明了这些共刺激分子对增强的T细胞活化的协同作用。 使用含有编码三个共刺激分子的基因的重组载体的T细胞活化程度远远大于含有一个共刺激分子并且大于使用两个共刺激分子的重组载体构建体的总和。 使用三重共刺激载体的结果在低水平的第一信号或低刺激剂与T细胞比率的条件下最显着。 用分离的CD4 +和CD8 + T细胞观察到这种现象。 本发明的重组载体可用作抗癌和致病微生物的免疫原和疫苗,以及提供宿主细胞,包括具有增强的抗原呈递功能的树突状细胞和脾细胞。