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    • 10. 发明公开
    • Porcine torque teno virus vaccines and diagnosis
    • 猪扭矩泰诺病毒疫苗和诊断
    • EP2851428A2
    • 2015-03-25
    • EP14180718.0
    • 2010-08-23
    • Virginia Tech Intellectual Properties, Inc.
    • Meng, Xiang-JinHuang, Yaowei
    • C12N15/34C12N15/63A61K39/12C12Q1/68G01N33/569C07K14/01
    • G01N33/56983A61K39/12A61K2039/552C07K14/005C07K16/081C12N7/00C12N2750/00021C12N2750/00022C12N2750/00034C12N2750/14034C12Q1/701G01N2333/01G01N2333/085G01N2469/20
    • The present invention provides four purified preparation containing a polynucleic acid molecule encoding porcine Torque teno virus (PTTV) genotypes or subtypes PTTV1 a-VA, PTTV1 b-VA, PTTV2b-VA, and PTTV2c-VA. The present invention also provides infectious DNA clones, biologically functional plasmid or viral vector containing the infectious nucleic acid genome molecule of the same. The present invention further provides live, attenuated, vector-expressed and purified recombinant capsid subunit or killed viral vaccines for protection against PTTV infection. The present invention additionally provides subunit vaccines comprising PTTV specific gene products, especially ORF1 capsid gene product for protection against PTTV infection. Further, the present invention provides methods for diagnosing PTTV infection via polymerase chain reaction (PCR) using specific primer for PTTV1, PTTV2, and individual PTTV1 genotypes. Finally, the present invention provides methods for diagnosing PTTV infection via immunological methods, e.g., enzyme-linked immunoabsorbent assay (ELISA) and Western blot using PTTV specific antigens for detecting serum PTTV specific antibodies.
    • 本发明提供了四种含有编码猪扭矩型诺沃病毒(PTTV)基因型或亚型PTTV1a-VA,PTTV1b-VA,PTTV2b-VA和PTTV2c-VA的多核酸分子的纯化制剂。 本发明还提供了感染性DNA克隆,生物功能性质粒或含有其的感染性核酸基因组分子的病毒载体。 本发明进一步提供活的,减毒的,载体表达和纯化的重组衣壳亚单位或杀死的病毒疫苗以防止PTTV感染。 本发明另外提供了包含PTTV特异性基因产物的亚单位疫苗,特别是用于防止PTTV感染的ORF1衣壳基因产物。 此外,本发明提供了使用用于PTTV1,PTTV2和个体PTTV1基因型的特异性引物通过聚合酶链式反应(PCR)诊断PTTV感染的方法。 最后,本发明提供了通过免疫学方法诊断PTTV感染的方法,例如酶联免疫吸附测定(ELISA)和使用PTTV特异性抗原的Western印迹来检测血清PTTV特异性抗体。