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    • 23. 发明授权
    • Construction and use of recombinant parainfluenza viruses expressing a chimeric glycoprotein
    • 构建和使用表达嵌合糖蛋白的重组副流感病毒
    • US07250171B1
    • 2007-07-31
    • US09459062
    • 1999-12-10
    • Tao TaoMario H. SkiadopoulosPeter L. CollinsBrian R. Murphy
    • Tao TaoMario H. SkiadopoulosPeter L. CollinsBrian R. Murphy
    • A61K31/155C12N15/00
    • C12N15/86A61K2039/5256C07K2319/00C12N2760/18643
    • Chimeric parainfluenza viruses (PIVs) are provided that incorporate a PIV vector genome or antigenome modified to encode a chimeric glycoprotein incorporating one or more heterologous antigenic domains, fragments, or epitopes of a second, antigenically distinct HPIV. These chimeric viruses are infectious and attenuated in humans and other mammals and are useful in vaccine formulations for eliciting an immune responses against one or more PIVs, and, optionally against respiratory syncytial virus (RSV). Also provided are isolated polynucleotide molecules and vectors incorporating a chimeric PIV genome or antigenome which includes a HPIV vector genome or antigenome combined or integrated with one or more heterologous genome segment(s) encoding one or more antigenic determinant(s) of a heterologous PIV to encode a chimeric glycoprotein. In preferred aspects of the invention, the chimeric virus is attenuated for use as a vaccine agent by additional mutations or nucleotide modifications introduced into the chimeric genome or antigenome.
    • 提供了嵌合副流感病毒(PIV),其包含PIV载体基因组或经修饰的反义基因组,以编码掺入一个或多个异源抗原结构域,片段或第二抗原性不同HPIV表位的嵌合糖蛋白。 这些嵌合病毒在人和其他哺乳动物中是感染性和减毒性的,并且可用于引发针对一种或多种PIV的免疫应答的疫苗制剂,以及任选地抗呼吸道合胞病毒(RSV)。 还提供了分离的多核苷酸分子和掺入嵌合PIV基因组或反基因组的载体,其包括与编码异源PIV的一个或多个抗原决定簇的一个或多个异源基因组片段组合或整合的HPIV载体基因组或抗原子集, 编码嵌合糖蛋白。 在本发明的优选方面,嵌合病毒通过引入到嵌合基因组或反基因组中的附加突变或核苷酸修饰来减毒用作疫苗剂。
    • 26. 发明授权
    • Production of attenuated respiratory syncytial virus vaccines involving modification of M2 ORF2
    • 涉及M2 ORF2修饰的减毒呼吸道合胞病毒疫苗的生产
    • US06713066B1
    • 2004-03-30
    • US09611829
    • 2000-07-07
    • Peter L. CollinsBrian R. MurphyAlison Bermingham
    • Peter L. CollinsBrian R. MurphyAlison Bermingham
    • A61K3912
    • C07K14/005A61K39/00A61K2039/5254C12N7/00C12N2760/18522C12N2760/18543C12N2760/18561
    • Recombinant respiratory syncytial virus (RSV) are provided in which expression of the second translational open reading frame encoded by the M2 gene (M2ORF2) is reduced or ablated to yield novel RSV vaccine candidates. Expression of M2 ORF2 is reduced or ablated by modifying a recombinant RSV genome or antigenome to incorporate a frame shift mutation, or one or more stop codons in M2 ORF2. Alternatively, M2 ORF2 is deleted in whole or in part to render the M2-2 protein partially or entirely non-functional or to disrupt its expression altogether. M2 ORF2 deletion and knock out mutants possess highly desirable phenotypic characteristics for vaccine development. These changes specify one or more desired phenotypic changes in the resulting virus or subviral particle. Vaccine candidates are generated that show a change in mRNA transcription, genomic or antigenomic RNA replication, viral growth characteristics, viral antigen expression, viral plaque size, and/or a change in cytopathogenicity. In addition, M2-2 knock out or deletion virus exhibits increased levels of synthesis of viral proteins in cell culture, providing an enriched source of viral antigen or protein for purification and use as a noninfectious subunit vaccine.
    • 提供了重组呼吸道合胞病毒(RSV),其中由M2基因(M2ORF2)编码的第二翻译开放阅读框的表达被减少或消融以产生新的RSV疫苗候选物。 M2 ORF2的表达通过修饰重组RSV基因组或抗原组合来结合帧移位突变或M2 ORF2中的一个或多个终止密码子来减少或消除。 或者,M2 ORF2全部或部分缺失,以使M2-2蛋白部分或完全不起作用或完全破坏其表达。 M2 ORF2缺失和敲除突变体对于疫苗开发具有非常需要的表型特征。 这些变化指定所得病毒或亚病毒颗粒中的一种或多种期望的表型变化。 产生疫苗候选物,其显示mRNA转录,基因组或反基因组RNA复制,病毒生长特征,病毒抗原表达,病毒斑块大小和/或细胞致病性变化的变化。 此外,M2-2敲除或缺失病毒在细胞培养物中表现出增加的病毒蛋白质合成水平,提供用于纯化和用作非感染性亚单位疫苗的病毒抗原或蛋白质的丰富来源。