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公开(公告)号:US20070104734A1
公开(公告)日:2007-05-10
申请号:US10575279
申请日:2004-12-10
申请人: Antonius Oomens , Gail Wertz , Alexander Megaw
发明人: Antonius Oomens , Gail Wertz , Alexander Megaw
IPC分类号: A61K39/155 , C12N7/00
CPC分类号: C12N15/86 , A61K39/12 , A61K39/155 , A61K2039/5254 , A61K2039/5256 , C07K14/005 , C07K2319/00 , C12N7/00 , C12N2760/18522 , C12N2760/18534 , C12N2760/18543 , C12N2760/18545 , C12N2760/18562 , C12N2810/60
摘要: The invention provides recombinant viruses comprising heterologous envelope proteins capable of mediating entry of the recombinant viruses into host cells. In one embodiment, a recombinant virus of the invention is a member of the Paramyx-ovirzdae family (e.g., a respiratory syncytial virus), and the heterologous envelope protein includes the ectodomain of a baculovirus envelope protein (e.g., the GP64 protein). In some cases, the heterologous envelope protein is provided in addition to homologous envelope proteins) which may or may not be functional. The heterologous protein can provide the recombinant virus with enhanced stability (e.g., at 4° C., 22° C., or 37° C.), and allows production of high-titer virus stocks. The heterologous protein can also impart temperature sensitivity to the replication of the recombinant virus. In addition, the recombinant virus can be designed to be infectious but incapable of spreading between host cells by providing the heterologous protein by complementation in trans. These features attenuate the disease-causing potential of the recombinant virus, therefore increasing its safety of use as vaccines.
摘要翻译: 本发明提供了包含能够介导重组病毒进入宿主细胞的异源包膜蛋白的重组病毒。 在一个实施方案中,本发明的重组病毒是副粘病毒家族(例如呼吸道合胞病毒)的成员,异源包膜蛋白包括杆状病毒包膜蛋白(例如GP64蛋白)的胞外域。 在一些情况下,异源包膜蛋白除了同源包膜蛋白外还提供),其可以是或不是功能性的。 异源蛋白质可以提供具有增强的稳定性(例如在4℃,22℃或37℃)的重组病毒,并且允许产生高滴度病毒种群。 异源蛋白质还可以赋予重组病毒复制的温度敏感性。 此外,重组病毒可被设计为感染性的,但不能通过在反式中互补提供异源蛋白质而在宿主细胞之间扩散。 这些特征减轻重组病毒的致病潜力,从而增加其作为疫苗使用的安全性。