Methods of examining (-) strand rna virus vectors having lowered ability to form grains and method of constructing the same
    1.
    发明申请
    Methods of examining (-) strand rna virus vectors having lowered ability to form grains and method of constructing the same 审中-公开
    检查具有降低形成颗粒能力的( - )链rna病毒载体的方法及其构建方法

    公开(公告)号:US20050130123A1

    公开(公告)日:2005-06-16

    申请号:US10489384

    申请日:2002-09-18

    摘要: The present invention provides methods for testing and producing (−) strand RNA virus vectors with reduced or eliminated particle formation ability or cytotoxicity. It was revealed that a deficiency in M protein localization in cells introduced with such a (−) strand RNA virus vector could result in the suppression of virus-like particle (VLP) formation in the cells. The present invention provides methods for testing and screening for a (−) strand RNA virus vector in which particle formation ability has been reduced or eliminated, and methods for producing a recombinant (−) strand RNA virus vector in which particle formation ability has been reduced or eliminated. Such a vector, in which VLP formation has been reduced or eliminated, is extremely useful as a vector for gene therapy, since it neither induces cytotoxicity nor immune response due to the secondary release of viruses from cells in which it has been introduced.

    摘要翻译: 本发明提供了测试和生产( - )链RNA病毒载体的方法,其具有降低或消除的颗粒形成能力或细胞毒性。 显示出用这种( - )链RNA病毒载体引入的细胞中M蛋白定位的缺陷可导致细胞中病毒样颗粒(VLP)形成的抑制。 本发明提供了用于测定和筛选其中减少或消除了颗粒形成能力的( - )链RNA病毒载体的方法,以及用于生产其中颗粒形成能力已经降低的重组( - )链RNA病毒载体的方法 或消除。 已经减少或消除VLP形成的这种载体作为用于基因治疗的载体是非常有用的,因为它既不引起细胞毒性也不诱导免疫应答,这是由于病毒从其引入细胞的二次释放引起的。

    Envelope gene-deficient Paramyxovirus vector
    2.
    发明授权
    Envelope gene-deficient Paramyxovirus vector 有权
    包膜基因缺陷型副粘病毒载体

    公开(公告)号:US07226786B2

    公开(公告)日:2007-06-05

    申请号:US10316535

    申请日:2002-12-10

    IPC分类号: C12N15/00 C12N15/86

    摘要: F gene-deficient virus virions are successfully recovered by using an F gene-deficient Sendai virus genomic cDNA. Further, F gene-deficient infectious viral particles are successfully constructed by using F-expressing cells as helper cells. Also, F gene and HN gene-deficient virus virions are successfully recovered by using a virus genomic cDNA deficient in both F gene and HN gene. Further, F gene and HN gene-deficient infectious viral particles are successfully produced by using F- and HN-expressing cells as helper cells. A virus deficient in F gene and HN gene and having F protein is constructed by using F-expressing cells as helper cells. In addition, M gene-deficient infectious virus particles were produced using helper cells expressing M protein. From cells infected with M gene-deficient viruses, release of virus-like particles was inhibited. Further, a VSV-G pseudo type virus is successfully constructed by using VSV-G-expressing cells. Techniques for constructing these deficient viruses contribute to the development of vectors of Paramyxoviridae usable in gene therapy.

    摘要翻译: 通过使用F基因缺陷的仙台病毒基因组cDNA成功地回收了F基因缺陷型病毒粒子。 此外,通过使用F表达细胞作为辅助细胞,成功构建了F基因缺陷型感染性病毒颗粒。 此外,通过使用F基因和HN基因缺陷的病毒基因组cDNA,成功地回收了F基因和HN基因缺陷型病毒粒子。 此外,通过使用F-和HN表达细胞作为辅助细胞,F基因和HN基因缺陷型感染性病毒颗粒成功产生。 通过使用F表达细胞作为辅助细胞构建F基因和HN基因并具有F蛋白的病毒。 此外,使用表达M蛋白的辅助细胞产生M基因缺陷型感染性病毒颗粒。 从感染M基因缺陷病毒的细胞中,病毒样颗粒的释放被抑制。 此外,通过使用表达VSV-G的细胞成功地构建了VSV-G伪型病毒。 用于构建这些缺陷病毒的技术有助于可用于基因治疗的副粘病毒科的载体的发育。

    Therapeutic Agent For Alzheimer's Disease
    5.
    发明申请
    Therapeutic Agent For Alzheimer's Disease 审中-公开
    阿尔茨海默病治疗剂

    公开(公告)号:US20090246170A1

    公开(公告)日:2009-10-01

    申请号:US12302927

    申请日:2007-05-31

    摘要: The present invention provides novel therapeutic methods and agents for treating Alzheimer's disease. Specifically, the present invention relates to anti-inflammatory cytokines, anti-inflammatory cytokine genes, negative-strand RNA viral vectors carrying an anti-inflammatory cytokine gene, which are used for treating Alzheimer's disease or developing therapeutic agents for Alzheimer's disease. The present invention also provides pharmaceutical compositions for treating or preventing Alzheimer's disease, which comprise the cytokines or vectors. The present invention further provides methods for treating Alzheimer's disease, which comprise the step of administering an anti-inflammatory cytokine, or a vector such as a negative-strand RNA viral vector carrying an anti-inflammatory cytokine gene. The present invention enables novel gene therapies for Alzheimer's disease.

    摘要翻译: 本发明提供治疗阿尔茨海默氏病的新型治疗方法和药剂。 具体而言,本发明涉及抗炎细胞因子,抗炎细胞因子基因,携带抗炎细胞因子基因的负链RNA病毒载体,其用于治疗阿尔茨海默病或开发阿尔茨海默氏病的治疗剂。 本发明还提供了用于治疗或预防阿尔茨海默病的药物组合物,其包含细胞因子或载体。 本发明还提供了治疗阿尔茨海默病的方法,其包括施用抗炎细胞因子的步骤,或携带抗炎细胞因子基因的载体如负链RNA病毒载体。 本发明使得能够进行阿尔茨海默病的新基因治疗。

    Method for producing viral vectors
    8.
    发明申请
    Method for producing viral vectors 审中-公开
    生产病毒载体的方法

    公开(公告)号:US20070141705A1

    公开(公告)日:2007-06-21

    申请号:US10587123

    申请日:2005-01-20

    IPC分类号: C12N5/08 C12N7/01 C12N15/86

    CPC分类号: C12N7/00 C12N2760/18851

    摘要: The present invention provides methods for producing viruses, whose propagation depends on the cleavage of viral protein by a protease, in a manner independent of the protease. The methods of the present invention for producing viruses comprise producing viruses in the presence of a modified viral protein in which the protease cleavage sequence is changed to a cleavage sequence for an alternative protease. Viral vectors can be more efficiently produced by replacing the protease cleavage sequence with a cleavage sequence for a protease expressed endogenously in virus-producing cells. The methods of the present invention enable the production of high titer viruses using a wide variety of cells.

    摘要翻译: 本发明提供了以与蛋白酶无关的方式生产病毒的方法,其传播依赖于蛋白酶对病毒蛋白的切割。 用于产生病毒的本发明的方法包括在修饰的病毒蛋白质的存在下产生病毒,其中将蛋白酶切割序列改变为用于替代性蛋白酶的切割序列。 通过用在病毒产生细胞内源性表达的蛋白酶的切割序列替换蛋白酶切割序列可以更有效地产生病毒载体。 本发明的方法能够使用多种细胞产生高滴度病毒。

    VECTORS WITH MODIFIED PROTEASE-DEPENDENT TROPISM
    10.
    发明申请
    VECTORS WITH MODIFIED PROTEASE-DEPENDENT TROPISM 有权
    具有修饰的蛋白依赖性TROPISM的载体

    公开(公告)号:US20080299642A1

    公开(公告)日:2008-12-04

    申请号:US12140715

    申请日:2008-06-17

    IPC分类号: C12N7/01 C07H21/04 C12N15/63

    摘要: The present invention provides cell fusogenic vectors having replicative ability, whose protease-dependent tropism has been modified. M gene-deficient viral vectors encoding modified F proteins, in which the cleavage site of the F protein of paramyxovirus is modified to be cleaved by different proteases, were produced. In cells transfected with these vectors, the genomic RNA present in the vectors is replicated, and cell fusogenic infection spreads to neighboring cells depending on the presence of other proteases; however, no viral particles are released. The vectors of this invention, encoding the F proteins which are cleaved by proteases whose activity is enhanced in cancer, show cancer growth suppressive effect in vivo.

    摘要翻译: 本发明提供具有复制能力的细胞融合载体,其蛋白酶依赖性向性已被修饰。 产生编码修饰的F蛋白的M基因缺陷型病毒载体,其中修饰了被不同蛋白酶切割的副粘病毒的F蛋白的切割位点。 在用这些载体转染的细胞中,载体中存在的基因组RNA被复制,并且根据其它蛋白酶的存在,细胞融合感染扩散到相邻细胞; 然而,没有病毒颗粒被释放。 本发明的编码由蛋白酶切割的F蛋白的载体,其活性在癌症中增强,在体内显示出癌症生长抑制作用。