发明名称 |
Recombinant bacterium comprising a toxin/antitoxin system |
摘要 |
The present invention encompasses recombinant bacteria suitable for live attenuated vaccines, and methods of use thereof. One aspect of the present invention encompasses a recombinant Salmonella bacterium. The bacterium comprises a first promoter operably linked to a nucleic acid encoding a toxin and a second promoter operably linked to a nucleic acid encoding an antitoxin, wherein the second promoter is inactive in vivo, but active in vitro. |
申请公布号 |
US9198950(B2) |
申请公布日期 |
2015.12.01 |
申请号 |
US201113989692 |
申请日期 |
2011.11.22 |
申请人 |
Arizona Board of Regents on behalf of Arizona State University |
发明人 |
Mellata Melha |
分类号 |
A61K39/112;A61K39/02;A61K49/00;A61K38/16;C12N1/38;C12N15/74;A61K39/00 |
主分类号 |
A61K39/112 |
代理机构 |
Polsinelli PC |
代理人 |
Riley-Vargas Rebecca C.;Polsinelli PC |
主权项 |
1. A recombinant Salmonella bacterium, the bacterium comprising a first promoter operably linked to a nucleic acid encoding a toxin and a second regulatable promoter operably linked to a nucleic acid encoding an antitoxin, such that transcription of the nucleic acid encoding the antitoxin occurs in a permissive in vitro environment, but ceases in a non-permissive in vivo environment. |
地址 |
Tempe AZ US |