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公开(公告)号:US20110189225A1
公开(公告)日:2011-08-04
申请号:US13073999
申请日:2011-03-28
申请人: ARTHUR KEITH TURNER , JUDITH GREENWOOD , JONATHAN CLIVE STEPHENS , JULIET CLAIRE BEAVIS , MICHAEL JAMES DARSLEY
发明人: ARTHUR KEITH TURNER , JUDITH GREENWOOD , JONATHAN CLIVE STEPHENS , JULIET CLAIRE BEAVIS , MICHAEL JAMES DARSLEY
IPC分类号: A61K39/108 , A61K39/02 , A61P37/04
CPC分类号: C12N15/70 , A61K39/00 , A61K39/0258 , A61K2039/521 , A61K2039/522 , A61K2039/53 , C07K14/245 , Y02A50/474
摘要: The invention provides strains of bacteria, especially enterotoxigenic E. coli, attenuated by mutations in the genes encoding enterotoxins (LT, ST, EAST1) and optionally further attenuated by deletion of additional chromosomal genes. In addition the invention provides strains of attenuated bacteria expressing immunogenic but non-toxic variants of one or more of these enterotoxins. These bacteria are useful as a vaccine against diarrhoeal disease.
摘要翻译: 本发明提供了通过在编码肠毒素(LT,ST,EAST1)的基因中的突变而减毒的细菌,特别是肠致毒性大肠杆菌菌株,并且任选地通过缺失其它染色体基因进一步减弱。 此外,本发明提供表达一种或多种这些肠毒素的免疫原性但无毒变体的减毒细菌菌株。 这些细菌可用作抗腹泻疾病的疫苗。