发明名称 |
LIVE VACCINE CARRIER STRAINS USEFUL FOR HIGH LEVEL EXPRESSION OF HETEROLOGOUS O-ANTIGENS FROM GRAM-NEGATIVE PATHOGENS AND DERIVATIVES THEREOF FOR USE AS LIVE VACCINES |
摘要 |
The present invention relates to live attenuated gram-negative vaccine carrier strains which are useful for expression and delivery of heterologous O-antigens (O-PS) from gram-negative pathogens. Said strains are deficient in the expression of homologous O-PS due to a defined genetic modification, preferably a deletion, and, thus, capable of efficiently expressing a desired heterologous O-PS in such a way that it is covalently coupled either to homologous or heterologous LPS core lipid A. The present invention furthermore relates to live vaccine carrier strains containing a heterologous gene or a set of heterologous genes encoding O-PS. Preferably, said strains additionally contain genes necessary for the synthesis of complete smooth heterologous LPS. The present invention also relates to live vaccines comprising said strains, preferably for immunization against gram-negative enteric pathogens.
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申请公布号 |
CA2232563(C) |
申请公布日期 |
2011.12.06 |
申请号 |
CA19962232563 |
申请日期 |
1996.10.04 |
申请人 |
SWISS SERUM AND VACCINE INSTITUTE BERNE |
发明人 |
FAVRE, DIDIER;CRYZ, STANLEY J.;VIRET, JEAN-FRANCOIS |
分类号 |
C12N1/21;C12N15/09;A61K31/00;A61K39/00;A61K39/02;A61K39/106;A61K39/112;A61K39/116;A61P37/00;A61P37/02;C07K14/245;C07K14/25;C07K14/28;C12N1/36;C12R1/19;C12R1/42;C12R1/63 |
主分类号 |
C12N1/21 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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