Abstract: Helicobacter pylori, one of the most common human pathogens, is associated with the development of human chronic gastritis, peptic ulcers and gastric cancer. The invention relates to a ?1,6-glucan-containing Helicobacter pylori compound comprising the structure of Formula I: wherein R is a ?-DDHep-3-?-L-Fuc-3-?-GlcNAc trisaccharide substituted with an ?1,6-glucan linked to an ?1,3-DD-heptan, and wherein the last DD-Hep residue of ?1,3-DD-heptan is capped with ?-GlcNAc residue. Compositions comprising the compound, uses of the compound, and antibodies raised against the compound are also described.

Abstract: Helicobacter pylori, one of the most common human pathogens, is associated with the development of human chronic gastritis, peptic ulcers and gastric cancer. The invention relates to a ?1,6-glucan-containing Helicobacter pylori compound comprising the structure of Formula I: wherein R is a ?-DDHep-3-?-L-Fuc-3-?-GlcNAc trisaccharide substituted with an ?1,6-glucan linked to an ?1,3-DD-heptan, and wherein the last DD-Hep residue of ?1,3-DD-heptan is capped with ?-GlcNAc residue. Compositions comprising the compound, uses of the compound, and antibodies raised against the compound are also described.

Abstract: Dextrans produced by lactic acid bacteria Leuconostoc mesenteroides and consisting of linear ?1,6-glucan chains modified with short side-chains composed of consecutive ?1,6-linked glucose residues were linked to a carrier protein. Three dextrans, namely Dextran-5K, Dextran-3.5K and Dextran-1.5K, with molecular masses of 5,000 Da, 3,500 Da and 1,500 Da, respectively, were modified with a diamino group-containing linker, followed by the introduction of maleimido functionality and conjugation to thiolated tetanus toxoid (TT), yielding Dextran-5K-TT, Dextran-3.5K-TT and Dextran-1.5K-TT conjugates. Studies performed with post-immune sera of mice and rabbits immunized with dextran-based glycococonjugates demonstrated cross-reactivity with LPS from typeable and non-typeable H. pylori strains and selected mutants. The post-immune sera from rabbits that received the conjugates exhibited functional activity against ?1,6-glucan-positive strains of H.

Abstract: Helicobacter pylori, one of the most common human pathogens, is associated with the development of human chronic gastritis, peptic ulcers and gastric cancer. The invention relates to a ?1,6-glucan-containing Helicobacter pylori compound comprising the structure of Formula I: wherein R is a ?-DDHep-3-?-L-Fuc-3-?-GlcNAc trisaccharide substituted with an ?1,6-glucan linked to an ?1,3-DD-heptan, and wherein the last DD-Hep residue of ?1,3-DD-heptan is capped with ?-GlcNAc residue. Compositions comprising the compound, uses of the compound, and antibodies raised against the compound are also described.

Abstract: Helicobacter pylori, one of the most common human pathogens, is associated with the development of human chronic gastritis, peptic ulcers and gastric cancer. The invention relates to a ?1,6-glucan-containing Helicobacter pylori compound comprising the structure of Formula (I): wherein R is a ?-DDHep-3-?-L-Fuc-3-?-GlcNAc trisaccharide substituted with an ?1,6-glucan linked to an ?1,3-DD-heptan, and wherein the last DD-Hep residue of ?1,3-DD-heptan is capped with ?-GlcNAc residue. Compositions comprising the compound, uses of the compound, and antibodies raised against the compound are also described.

Abstract: Dextrans produced by lactic acid bacteria Leuconostoc mesenteroides and consisting of linear ?1,6-glucan chains modified with short side-chains composed of consecutive ?1,6-linked glucose residues were linked to a carrier protein. Three dextrans, namely Dextran-5K, Dextran-3.5K and Dextran-1.5K, with molecular masses of 5,000 Da, 3,500 Da and 1,500 Da, respectively, were modified with a diamino group-containing linker, followed by the introduction of maleimido functionality and conjugation to thiolated tetanus toxoid (TT), yielding Dextran-5K-TT, Dextran-3.5K-TT and Dextran-1.5K-TT conjugates. Studies performed with post-immune sera of mice and rabbits immunized with dextran-based glycococonjugates demonstrated cross-reactivity with LPS from typeable and non-typeable H. pylori strains and selected mutants. The post-immune sera from rabbits that received the conjugates exhibited functional activity against ?1,6-glucan-positive strains of H.

Abstract: Helicobacter pylori, one of the most common human pathogens, is associated with the development of human chronic gastritis, peptic ulcers and gastric cancer. The invention relates to a ?1,6-glucan-containing Helicobacter pylori compound comprising the structure of Formula (I): wherein R is a ?-DDHep-3-?-L-Fuc-3-?-GlcNAc trisaccharide substituted with an ?1,6-glucan linked to an ?1,3-DD-heptan, and wherein the last DD-Hep residue of ?1,3-DD-heptan is capped with ?-GlcNAc residue. Compositions comprising the compound, uses of the compound, and antibodies raised against the compound are also described.