发明授权
US09289481B2 Incapacitated whole-cell immunogenic bacterial compositions produced by recombinant expression
有权
通过重组表达产生的无效的全细胞免疫原性细菌组合物
- 专利标题: Incapacitated whole-cell immunogenic bacterial compositions produced by recombinant expression
- 专利标题(中): 通过重组表达产生的无效的全细胞免疫原性细菌组合物
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申请号: US12560321申请日: 2009-09-15
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公开(公告)号: US09289481B2公开(公告)日: 2016-03-22
- 发明人: Janakiraman Ramachandran , Sriram Padmanabhan , Bharathi Sriram
- 申请人: Janakiraman Ramachandran , Sriram Padmanabhan , Bharathi Sriram
- 申请人地址: US CA Newark
- 专利权人: Gangagen, Inc.
- 当前专利权人: Gangagen, Inc.
- 当前专利权人地址: US CA Newark
- 代理机构: Kilpatrick Townsend & Stockton LLP
- 主分类号: A61K39/02
- IPC分类号: A61K39/02 ; A61P37/04 ; C12N15/74 ; A61K39/108 ; A61K39/00
摘要:
The present invention features incapacitated whole-cell bacterial immunogenic compositions and methods of their production, which compositions are useful to deliver antigens in a manner resembling the live infectious organism in terms of elicitation of a robust immune response, but with reduced risk or no risk of disease. The compositions of the invention are produced by rendering a bacterium bacteriostatic through expression of a recombinant promoter in the bacterial cell, which promoter can be operably linked to a polynucleotide encoding a recombinant gene product. In one embodiment, where the bacterium is a gram negative host, the recombinant gene product provides for reduced toxicity of LPS. In one embodiment, the gene product is a bacteriophage protein, such as endolysin, holin, or ndd.
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