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

Incapacitated whole-cell immunogenic bacterial compositions produced by recombinant expression
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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