Conserved inner core lipopolysaccharide epitopes as multi-species vaccine candidates
申请人:National Research Council of Canada
公开号:US07759070B2
公开(公告)日:2010-07-20
A conserved inner-core oligosaccharide epitope expressed on the lipopolysaccharide (LPS) of a range of disease causing pathogenic bacterial isolates, including Actinobacillus pleuropneumoniae (Ap), Mannheimia haemolytica (Mh) and Pasteurella multocida (Pm), is disclosed. Construction of a mutant bacterial strain exclusively expressing the conserved inner core OS epitope as a terminally exposed structure has allowed the identification, production and isolation of an inner core LPS which is common to all three organisms. Further provided are associated vaccines, antibodies raised against the conserved LPS inner core and glycoconjugates comprising the LPS inner core linked to an immunogenic carrier.
本发明揭示了一种在多种致病细菌分离物的脂多糖(LPS)上表达的保守内核寡糖表位,包括肺胶原质芽胞杆菌(Ap)、血友病分枝杆菌(Mh)和多杀性巴氏杆菌(Pm)。构建了一种突变细菌菌株,专门表达保守的内核OS表位作为末端暴露结构,从而允许鉴定、生产和分离所有三种生物体共同的内核LPS。此外,还提供了相关的疫苗、抗体和糖偶联物,其中包括与免疫原载体连接的LPS内核。