[EN] OLIGOSACCHARIDES AND OLIGOSACCHARIDE-PROTEIN CONJUGATES DERIVED FROM CLOSTRIDIUM DIFFICILE POLYSACCARIDE PS-I, METHODS OF SYNTHESIS AND USES THEREOF, IN PARTICULAR AS VACCINES AND DIAGNOSTIC TOOLS [FR] OLIGOSACCHARIDES ET CONJUGUÉS D'OLIGOSACCHARIDES-PROTÉINES PROVENANT DE POLYSACCARIDES PS-I DE CLOSTRIDIUM DIFFICILE, LEURS PROCÉDÉS DE SYNTHÈSE ET D'UTILISATION, EN PARTICULIER EN TANT QUE VACCINS ET OUTILS DE DIAGNOSTIC
Progress toward developing a carbohydrate-conjugate vaccine against Clostridium difficile ribotype 027: synthesis of the cell-surface polysaccharide PS-I repeating unit
Oligosaccharides and oligosaccharides-protein conjugates derived from clostridium difficile polysaccharide PS-I, methods of synthesis and uses thereof, in particular as vaccines and diagnostic tools
申请人:Max-Planck-Gesellschaft zur Förderung der
Wissenschaften e.V.
公开号:EP2554549A1
公开(公告)日:2013-02-06
The invention relates to a synthetic oligosaccharide representing part of the repeating unit of the Clostridium difficile glycopolymer PS-I and having the sequence of the pentasaccharide α-L-Rhap-(1→3)-β-D-Glcp-(1→4)-[α-L-Rhap-(1→3)]-α-D-Glcp-(1→2)-α-D-Glcp or a synthetic fragment or derivative thereof.
Preferably, the claimed synthetic oligosaccharide bears at least one linker L for conjugation to a carrier protein or for immobilization on a surface.
Further aspects of the invention relate to advantageous methods for synthesizing said synthetic oligosaccharide and oligosaccharide-protein conjugate as well as to uses thereof, in particular as vaccines and diagnostic tools.
A preferred method for synthesizing the pentasaccharide is shown below.
Progress toward developing a carbohydrate-conjugate vaccine against Clostridium difficile ribotype 027: synthesis of the cell-surface polysaccharide PS-I repeating unit
作者:Christopher E. Martin、Markus W. Weishaupt、Peter H. Seeberger
DOI:10.1039/c1cc13614c
日期:——
Clostridium
difficile strain ribotype 027 is a hypervirulent pathogen that is responsible for recent, severe outbreaks of serious nosocomial infections. As a foundation for the development of a preventative carbohydrate-based vaccine, we have synthesized a pentasaccharide cell wall repeating unit from PS-I unique to this strain, by the linear assembly of four monosaccharide building blocks.
[EN] OLIGOSACCHARIDES AND OLIGOSACCHARIDE-PROTEIN CONJUGATES DERIVED FROM CLOSTRIDIUM DIFFICILE POLYSACCARIDE PS-I, METHODS OF SYNTHESIS AND USES THEREOF, IN PARTICULAR AS VACCINES AND DIAGNOSTIC TOOLS<br/>[FR] OLIGOSACCHARIDES ET CONJUGUÉS D'OLIGOSACCHARIDES-PROTÉINES PROVENANT DE POLYSACCARIDES PS-I DE CLOSTRIDIUM DIFFICILE, LEURS PROCÉDÉS DE SYNTHÈSE ET D'UTILISATION, EN PARTICULIER EN TANT QUE VACCINS ET OUTILS DE DIAGNOSTIC
申请人:MAX PLANCK GESELLSCHAFT
公开号:WO2013017254A1
公开(公告)日:2013-02-07
The invention relates to a synthetic oligosaccharide representing part of the repeating unit of the Clostridium difficile glycopolymer PS-I and having the sequence of the pentasaccharide a-L-Rhap- ( 1→3 ) -β-D-Glcp- ( 1→4 ) - [a-L-Rhap- ( 1→3 ] -a-D-Glcp- ( 1→2 ) -a-D-Glcp or a synthetic fragment or derivative thereof. Preferably, the claimed synthetic oligosaccharide bears at least one linker L for conjugation to a carrier protein or for immobilization on a surface. Further aspects of the invention relate to advantageous methods for synthesizing said synthetic oligosaccharide and oligosaccharide-protein conjugate as well as to uses thereof, in particular as vaccines and diagnostic tools.