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.
本文披露了一种保守的内核
寡糖表位,该表位表达在一系列致病细菌分离物的脂
多糖(LPS)上,包括副猪咳嗽杆菌(Ap)、血色素单胞菌(Mh)和多杀性巴氏杆菌(Pm)。构建一种突变的细菌菌株,该菌株仅表达保守的内核OS表位作为末端暴露结构,使得可以鉴定、生产和分离所有三种
生物体共有的内核LPS。此外,还提供了相关的疫苗、针对保守的LPS内核产生的
抗体以及将LPS内核与免疫原载体连接的糖偶联物。