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    • 2. 发明申请
    • METHODS AND COMPOSITIONS RELATING TO IMPROVED LENTIVIRAL VECTOR PRODUCTION SYSTEMS
    • 与改进的生物载体生产系统相关的方法和组合
    • US20100062524A1
    • 2010-03-11
    • US12578346
    • 2009-10-13
    • Didier TronoRomain N. Zufferey
    • Didier TronoRomain N. Zufferey
    • C12N15/63
    • C12N15/86A61K48/00C12N7/00C12N2740/15043C12N2740/16043C12N2740/16052C12N2740/16061C12N2830/38C12N2830/48C12N2830/50C12N2840/203C12N2840/44
    • The present invention provides HIV-derived lentivectors which are multiply modified to create highly safe, efficient, and potent vectors for expressing transgenes for gene therapy. The lentiviral vectors comprise various combinations of an inactive central polypurine tract, a stuffer sequence, which may encode drug susceptibility genes, and a mutated hairpin in the 5′ leader sequence that substantially abolishes replication. These elements are provided in conjunction with other features of lentiviral vectors, such as a self-inactivating configuration for biosaftey and promoters such as the EF1α promoter as one example. Additional promoters are also described. The vectors can also comprise additional transcription enhancing elements such as the wood chuck hepatitis virus post-transcriptional regulatory element. These vectors therefore provide useful tools for genetic treatments for inherited and acquired disorders, gene-therapies for cancers and other disease, the creation of industrial and experimental production systems utilizing transformed cells, as well as for the study of basic cellular and genetic processes.
    • 本发明提供了HIV衍生的慢病毒药物,其被多重修饰以产生用于表达用于基因治疗的转基因的高度安全,有效和有效的载体。 慢病毒载体包括不规则的中枢多巴胺,可编码药物敏感性基因的填充序列和基本上消除复制的5'前导序列中突变的发夹的各种组合。 这些元件与慢病毒载体的其它特征结合提供,例如用于生物卫生的自灭活构型和启动子如EF1α启动子作为一个实例。 还描述了另外的启动子。 载体还可以包含额外的转录增强元件,例如木吸虫肝炎病毒转录后调节元件。 因此,这些载体为继承和获得性疾病的遗传治疗,癌症和其他疾病的基因治疗,利用转化细胞的工业和实验生产系统的建立以及基础细胞和遗传过程的研究提供了有用的工具。