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    • 1. 发明授权
    • Paramyxovirus vectors used for transfer of foreign genes
    • 用于转移外来基因的副粘病毒载体
    • US06746860B1
    • 2004-06-08
    • US09702498
    • 2000-10-31
    • Tsuyoshi TokusumiAkihiro IidaMamoru HasegawaYoshiyuki Nagai
    • Tsuyoshi TokusumiAkihiro IidaMamoru HasegawaYoshiyuki Nagai
    • C12N701
    • C12N15/86C12N2760/18843C12N2830/42
    • A paramyxovirus vector capable of Extransfecting foreign genes and having a replication capacity, is provided. A Sendai virus vector comprising a foreign gene can be constructed by inserting a foreign gene between the viral genes of the Sendai virus genome. These Sendai viruses have a replication capacity and express the foreign gene in transfected cells. The expression level of the foreign gene is higher towards the 3′ end of negative strand RNA, and especially, a high level of expression is obtained when the foreign gene is inserted before the NP gene, and between P gene and M gene. Conversely, the expression decreases towards 5′ end of negative strand RNA, and especially, a relatively low level of expression is obtained when the when the foreign gene is inserted between HN gene and L gene, and between F gene and HN gene. Thus, the vector of the invention enables the regulation of the expression level of a foreign gene. The vector is useful for gene therapy due to its safety, high gene transfer efficiency, and capacity to express a foreign gene at a high level.
    • 提供了能够外切基因并具有复制能力的副粘病毒载体。 可以通过在仙台病毒基因组的病毒基因之间插入外来基因来构建包含外来基因的仙台病毒载体。 这些仙台病毒具有复制能力,并在转染的细胞中表达外源基因。 外源基因的表达水平高于负链RNA的3'末端,特别是当外源基因插入NP基因之前和P基因与M基因之间时,可获得高水平的表达。 相反,表达量向负链RNA的5'端减少,特别是当外源基因插入到HN基因和L基因之间以及F基因和HN基因之间时,获得相对低的表达水平。 因此,本发明的载体能够调节外源基因的表达水平。 该载体由于其安全性,高基因转移效率和在高水平表达外源基因的能力而可用于基因治疗。