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    • 4. 发明申请
    • GROWTH OF WILD-TYPE HEPATITIS A VIRUS IN CELL CULTURE
    • 野生型HEPATITIS病毒在细胞培养中的生长
    • US20100055670A1
    • 2010-03-04
    • US11993851
    • 2006-06-26
    • Gerardo KaplanKrishnamurthy Konduru
    • Gerardo KaplanKrishnamurthy Konduru
    • C12Q1/70C07H21/04C12N15/63C12N5/071C12N7/02C12P19/34
    • C12N15/86C12N7/00C12N2770/32443C12N2770/32461
    • The invention provides recombinant Hepatitis A Virus (HAV) nucleic acids and host cells that are permissive for their growth and replication. The recombinant Hepatitis A Virus nucleic acids not particularly limited, except that they incorporate at least one heterologous nucleic acid fragment. The heterologous nucleic acid can encode a selectable marker gene and such recombinant HAV nucleic acids are useful for selecting cells that are permissive for growth and replication of wild type HAV. Alternatively, the heterologous nucleic acid may encode a vaccine antigen or other expression product that is desirable to express in a cell harboring the recombinant HAV nucleic acid. The invention further provides cell lines permissive for growth and replication of wild type HAV or HAV having minimal mutations for growth in cell culture. The invention further provides methods for producing HAV vaccines and for monitoring environmental and patient samples for the presence of HAV.
    • 本发明提供重组甲型肝炎病毒(HAV)核酸和允许其生长和复制的宿主细胞。 重组甲型肝炎病毒核酸没有特别限制,除了它们掺入至少一种异源核酸片段。 异源核酸可以编码选择性标记基因,并且这种重组HAV核酸可用于选择允许野生型HAV生长和复制的细胞。 或者,异源核酸可以编码在含有重组HAV核酸的细胞中希望表达的疫苗抗原或其它表达产物。 本发明进一步提供允许生长和复制野生型HAV或HAV的细胞系,所述野生型HAV或HAV在细胞培养物中生长具有最小的突变。 本发明还提供了用于生产HAV疫苗和用于监测HAV存在的环境和患者样品的方法。