申请人:The United States of America, as represented by the Secretary, Department of Health and Human Serv
公开号:US20140242666A1
公开(公告)日:2014-08-28
Disclosed are immunogenic conjugates and therapeutic compositions that include such immunogenic conjugates. Also disclosed are methods of treating and/or inhibiting an
Shigella sonnei
infection. The disclosed immunogenic conjugates have the general structure:
Pr-Sr-O—N═C-Kdo-OS
wherein Pr is a carrier protein, Sr is an optional spacer moiety, Kdo is an 3-deoxy-D-manno-octulosonic acid or a derivative thereof, and OS is an oligosaccharide or polysaccharide obtained from
S. sonnei
. In specific examples, the immunogenic conjugates include the core oligosaccharide obtained from
S. sonnei
having the structure:
wherein R is between 1 and 10 disaccharide repeat units.
In specific examples, the disaccharide repeat unit included in the immunogenic conjugate has the structure:
α-L-AltNAcA-3-β-FucNAc4N-4-.