Alphavirus vectors having attentuated virion structural proteins
    1.
    发明申请
    Alphavirus vectors having attentuated virion structural proteins 审中-公开
    具有病毒粒子结构蛋白的甲病毒载体

    公开(公告)号:US20060099587A1

    公开(公告)日:2006-05-11

    申请号:US10517083

    申请日:2003-06-20

    IPC分类号: C12Q1/68 C12N7/00 C12N7/01

    摘要: The present invention provides immunogenic compositions and methods that may be used to administer safer (i.e., attenuated) alphavirus vectors (such as alphavirus vectors comprising a VEE virion shell) that retain improved immunogenicity as compared with other attenuated alphaviruses (e.g., the VEE 3014 mutant, described below). In particular embodiments of the invention, the alphavirus vector comprises VEE structural proteins comprising an attenuating mutation in the E1 glycoprotein. In other particular embodiments, the attenuating mutation is in the fusogenic region of the E1 glycoprotein. The present invention enables administration of lower dosages of a safer (i.e., attenuated) virus and, thus, can further reduce manufacturing costs. The present inventors have found that immunogenicity of alphavirus vectors may be influenced by a number of factors including species, site and route of administration.

    摘要翻译: 本发明提供免疫原性组合物和方法,其可用于与其他减毒的甲病毒(例如,VEE 3014突变体)相比,其保持更高(即减毒)的甲病毒载体(例如包含VEE病毒粒子的甲病毒载体),其保持改善的免疫原性 , 如下面所描述的)。 在本发明的具体实施方案中,甲病毒载体包含在E1糖蛋白中包含减毒突变的VEE结构蛋白。 在其它具体实施方案中,减毒突变位于E1糖蛋白的融合区。 本发明使得能够施用较低剂量的更安全(即,减毒)的病毒,因此可以进一步降低制造成本。 本发明人已经发现甲病毒载体的免疫原性可能受许多因素的影响,包括物种,部位和给药途径。