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    • 2. 发明申请
    • METHODS AND COMPOSITIONS RELATED TO HIGH-TITER PSEUDOTYPED RETROVIRUSES
    • 方法与组合物相关的高蛋白复制体病毒
    • WO2004104032A2
    • 2004-12-02
    • PCT/US2004014897
    • 2004-05-13
    • UNIV IOWA RES FOUNDMCCRAY PAULFAN HUNGSINN PATRICK
    • MCCRAY PAULFAN HUNGSINN PATRICK
    • A61K48/00C12N7/00C12N15/867C07K14/155
    • C12N15/86A61K48/00C12N7/00C12N2740/12043C12N2740/15021C12N2740/15043C12N2740/15045C12N2830/003C12N2840/44
    • The present invention concerns the methods and compositions related to pseudotyped viral vectors. Embodiments of the invention include pseudotyping expression cassettes that include nucleic acid elements for enhancing the titer of pseudotyped viral particles. Embodiments of the invention include novel methods and compositions related to making high titer pseudotyped retroviral vector compositions. A heterologous envelope glycoprotein is typically incorporated into the virus during the budding or virus production process. Certain embodiments of the invention include pseudotyped retroviral vectors comprising a heterologous envelope glycoprotein derived from a Jaagsiekte sheep retrovirus (JSRV env). Pseudotyped viruses or viral particles may have a modified host range that is influenced by the properties of the heterologous envelope glycoprotein. Thus, embodiments of the invention include improved methods and compositions related to pseudotyped viruses suitable for ex vivo and in vivo methods including gene transfer and other therapeutic and experimental methods.
    • 本发明涉及与假型病毒载体相关的方法和组合物。 本发明的实施方案包括假型分型表达盒,其包括用于增强假型病毒颗粒滴度的核酸元件。 本发明的实施方案包括与制备高滴度假型逆转录病毒载体组合物有关的新方法和组合物。 在发芽或病毒生产过程中,异源包膜糖蛋白通常并入病毒。 本发明的某些实施方案包括包含衍生自Jaagsiekte绵羊逆转录病毒(JSRV env)的异源包膜糖蛋白的假型逆转录病毒载体。 伪型病毒或病毒颗粒可能具有受异源包膜糖蛋白特性影响的修饰的宿主范围。 因此,本发明的实施方案包括与适用于离体和体内方法(包括基因转移和其他治疗和实验方法)的假型病毒相关的改进的方法和组合物。