The present invention relates generally to glycoconjugates comprising a saccharide covalently conjugated to a carrier protein through a spacer containing ((2-oxoethyl)thio)). In an aspect the invention provides oxo-eT linked glycoconjugates comprising a saccharide covalently conjugated to a carrier protein through a ((2-oxoethyl)thio) spacer having the formula (I): ##STR00001## wherein: A is a group (C═X).sub.m wherein X is S or O and m is 0 or 1; B is a bond, O, or CH.sub.2; and when m is 0, B can also be (C═O); R is a C.sub.2-C.sub.16 alkylene, C.sub.2-C.sub.16 heteroakylene, NH—C(═O)—C.sub.2-C.sub.16 alkylene, or NH—C(═O)—C.sub.2-C.sub.16 heteroakylene, wherein said alkylene and heteroalkylene are optionally substituted by 1, 2 or 3 groups independently selected from COOR′ where R′ is selected from H, methyl, ethyl or propyl. The invention further relates to immunogenic compositions comprising such glycoconjugates, and to methods for the preparation and use of such glycoconjugates and immunogenic compositions.

The present invention relates to the field of modified proteins, immunogenic compositions and vaccines comprising the modified proteins, their manufacture and the use of such compositions in medicine. More particularly, it relates to a modified EPA (Exotoxin A of Pseudomonas aeruginosa) protein. The modified EPA can be used as a carrier protein for other antigens, particularly saccharide antigens or other antigens lacking T cell epitopes.

The present invention is related to biotechnology, particularly to the field of human health. It provides new vaccine compositions that comprise as active principle a system that contains the recombinant human EGF, or peptides thereof, and a carrier protein or peptide, bound to a nucleus constituted by inorganic nanoparticles, with nanometric or submicrometric scale dimensions. These vaccine compositions are useful for the chronic treatment of cancer and have as advantages that their administration does not result in the appearance of adverse effects at the injection site and that they do not accumulate in the body.

Disclosed herein are compositions that include antigen-encoding nucleic acid sequences and/or antigen peptides. Also disclosed are nucleotides, cells, and methods associated with the compositions including their use as vaccines, including vectors and methods for a heterologous prime/boost vaccincation strategy.

The present invention relates to a vaccine composition which is form neutering or spaying an animal and comprises a recombinant protein in which cholera toxin B subunit (CTB) and gonadotropin-releasing hormone (GnRH) are fused. More specifically, provided are: a recombinant protein for neutering or spaying an animal and for inducing antibodies against GnRH; a recombinant vector for producing the recombinant protein; a vaccine composition for neutering or spaying an animal, the vaccine composition comprising the recombinant protein; and a method for neutering or spaying an animal by using the vaccine composition. The vaccine composition according to the present invention induces antibodies against GnRH in an individual, thereby atrophying the ovaries or testes thereof. Therefore, the present invention can, at low cost, a high level of safety, and with minimal side effects, replace surgical procedures for neutering and spaying, and be beneficially used to neuter or spay an animal.

Disclosed are methods, systems, components, and compositions for cell-free synthesis of glycosylated carrier proteins. The glycosylated carrier proteins may be utilized in vaccines, including anti-bacterial vaccines. The glycosylated carrier proteins may include a bacterial polysaccharide conjugated to a carrier, which may be utilized to generate an immune response in an immunized host against the polysaccharide conjugated to the carrier. The glycosylated carrier proteins may be synthesized in cell-free glycoprotein synthesis (CFGpS) systems using prokaryote cell lysates that are enriched in components for glycoprotein synthesis such as oligosaccharyltransferases (OSTs) and lipid-linked oligosaccharides (LLOs) including OSTs and LLOs associated with synthesis of bacterial O antigens.

The present invention refers to new conjugate antigens expressing built-in multiple epitopes and to polyvalent glycoconjugate vaccines and formulations containing the same. In addition, the present invention concerns the use of these vaccines in particular for the protection of the human population, and in particular for the protection of the paediatric population from pulmonary and systemic infections due to S. pneumoniae, N. meningitidis, H. influenzae, K. pneumoniae, M. tuberculosis, S. aereus, or from intestinal infections due to S. typhi, V. cholerae and E. coli. The present invention additionally refers to new polyvalent glycoconjugate vaccines for the protection from C. albicans and E. coli systemic and genitourinary infections or for the protection from M. bovis infections in veterinary medicine.

Methods of inducing an immunogenic response against a bacterial polysaccharide or oligosaccharide, and constructs and compositions for use in such methods.

This invention relates to novel fusion peptides and immunogenic compositions containing the fusion peptides useful in the control and prevention of tick infestations. The invention also relates to compositions comprising said fusion peptides, methods of vaccination against tick infestation using said fusion peptides and compositions, and kits for use with such compositions and methods.

Disclosed are methods, systems, components, and compositions for cell-free synthesis of glycosylated proteins. The glycosylated proteins may be utilized in vaccines, including anti-bacterial vaccines. The glycosylated proteins may include a bacterial polysaccharide conjugated to a carrier, which may be utilized to generate an immune response in an immunized host against the polysaccharide conjugated to the carrier. The glycosylated proteins may be synthesized in cell-free glycoprotein synthesis (CFGpS) systems using prokaryote cell lysates that are enriched in components for glycoprotein synthesis such as oligosaccharyltransferases (OSTs) and lipid-linked oligosaccharides (LLOs) including OSTs and LLOs associated with synthesis of bacterial O antigens.