NOVEL RECOMBINANT BORDETELLA STRAINS

    公开(公告)号:EP3459966A1

    公开(公告)日:2019-03-27

    申请号:EP18194351.5

    申请日:2013-10-17

    IPC分类号: C07K14/235 C12N1/36

    摘要: The present invention relates to a genetically attenuated Bordetella pertussis strain comprising a mutated pertussis toxin ( ptx ) gene, and a heterologous ampG gene and expressing a hybrid protein comprising the N-terminal fragment of filamentous haemagglutinin (FHA) and a heterologous epitode or antigenic protein or protein fragment, different from FHA, wherein the gene coding for the native FHA protein is inactivated.
    The invention further provides a live attenuated vaccine for the treatment of a mucosal or systemic infectious disease comprising a Bordetella pertussis strain as defined above intended to elicit a immune response against pathogens responsible for systemic or mucosal infections, including of the upper or lower respiratory tract.
    The present invention also relates to a method for prophylaxis of an infectious disease in a mammal, comprising administering to said mammal an effective amount of a vaccine comprising in a suitable vehicle a genetically attenuated Bordetella pertussis strain comprising a mutated pertussis toxin ( ptx ) gene, and a heterologous ampG gene and expressing a hybrid protein comprising the N-terminal fragment of filamentous haemagglutinin (FHA) and a heterologous epitope or antigenic protein or protein fragment, different from FHA, wherein the gene coding for the native FHA protein is inactivated.
    The invention provides a method for enhancing the immune response toward a pathogen, in a mammal, comprising administering a vaccine based on a Bordetella recombinant vector, wherein said Bordetella expresses a fusion protein comprising the N-terminal fragment of filamentous haemagglutinin (FHA) and a heterologous epitope or antigenic protein or protein fragment of said pathogen against which the immune response is sought and wherein in said recombinant strain, the gene coding for the native FHA protein is inactivated.

    NOVEL RECOMBINANT BORDETELLA STRAINS
    7.
    发明公开
    NOVEL RECOMBINANT BORDETELLA STRAINS 审中-公开
    新的重组百日咳菌

    公开(公告)号:EP2909229A1

    公开(公告)日:2015-08-26

    申请号:EP13777082.2

    申请日:2013-10-17

    IPC分类号: C07K14/235 C12N1/36

    摘要: The present invention relates to a recombinant genetically attenuated Bordetella strain expressing a hybrid protein comprising the N-terminal fragment of filamentous haemagglutinin (FHA) and a heterologous epitope or antigenic protein or protein fragment, different from FHA, wherein the gene coding for the native FHA protein is inactivated. The Bordetella strain is preferably a Bordetella pertussis strain, but may also be another Bordetella species, such as Bordetella bronchiseptica, Bordetella parapertussis or Bordetella avium. The invention further provides a life attenuated vaccine for the treatment of a mucosal or systemic infectious disease comprising a Bordetella strain as defined above intended to elicit a immune response against pathogens responsible for systemic or mucosal infections, including of the upper or lower respiratory tract. The present invention also relates to a method for prophylaxis of an infectious disease in a mammal, comprising administering to said mammal an effective amount of a vaccine comprising in a suitable vehicle a recombinant attenuated Bordetella strain expressing a fusion protein comprising the N-terminal fragment of filamentous haemagglutinin (FHA) and a heterologous epitome or antigenic protein or protein fragment, different from FHA, wherein the gene coding for the native FHA protein is inactivated.