REGULATED PROTEIN EXPRESSION IN STABLY TRANSFECTED MAMMALIAN CELLS
    2.
    发明授权
    REGULATED PROTEIN EXPRESSION IN STABLY TRANSFECTED MAMMALIAN CELLS 失效
    蛋白稳定转化的哺乳动物细胞表达上调

    公开(公告)号:EP0870044B1

    公开(公告)日:2004-04-14

    申请号:EP96940158.7

    申请日:1996-11-29

    IPC分类号: C12N15/85 C12N5/10 C12N15/864

    摘要: The invention is in the field of recombinant genetic materials, especially for use in gene therapy. Vectors used for transferring additional genetic information to cells in the field of gene therapy are often based on viruses. A group of viruses which has been proposed to use for transfection is the group of parvoviruses, in particular the use of adeno associated virus has been proposed. The invention provides improved methods and means for gene therapy and for preparing products to be used in gene therapy using parvovirus based materials. The invention particularly provides regulated expression of genes under control of the combination of a repressor moiety and an activator moiety, particularly for expression of products which are toxic to the host cell in which they are expressed. In this way it is possible to achieve stable transfection for expression of parvovirus toxic proteins so that amongst others a packaging cell line for producing recombinant parvovirus, in particular adeno associated virus is provided as well as virus produced therewith.

    GENETIC MODIFICATION OF PRIMATE HEMOPOIETIC REPOPULATING STEM CELLS
    5.
    发明授权
    GENETIC MODIFICATION OF PRIMATE HEMOPOIETIC REPOPULATING STEM CELLS 失效
    干细胞在造血灵长类再植遗传修饰

    公开(公告)号:EP0938578B1

    公开(公告)日:2004-02-04

    申请号:EP97913537.3

    申请日:1997-11-19

    IPC分类号: C12N15/86 C12N5/10 A61K48/00

    摘要: Genetic modification of pluripotent hemopoietic stem cells of primates (P-PHSC) by transduction of P-PHSC with a recombinant adeno-associated virus (AAV). The genome of the recombinant AAV comprises a DNA sequence flanked by the inverted terminal repeats (ITR) of AAV. The DNA sequence will normally comprise regulatory sequences which are functional in hemopoietic cells and, controlled by these regulatory sequences, a sequence coding for a protein or RNA with a therapeutic property when introduced into hemopoietic cells. Preferred examples of DNA sequences are the human lysosomal glococerebrosidase gene, a globin gene from the human β-globin gene cluster, a DNA sequence encoding an RNA or protein with anti-viral activity, the α1-antitrypsin gene and the human multidrug resistance gene I (MDRI). The invention provides for effective gene therapy with PHSC of primates, in particular humans.