Abstract: The present invention relates to modified bacterial polypeptides having immunomodulatory and immunostimulatory activity. Most specifically, the present invention relates to modified bacterial polypeptides having an amino acid sequence selected from SEQ ID NO. 1, SEQ ID NO. 2, SEQ ID NO. 3, SEQ ID NO. 4 and SEQ ID NO. 5. The modified polypeptides are the adjuvant components of a pharmaceutical composition for eliciting an immune response against an specific antigen present in the pharmaceutical composition. In a preferred embodiment, the invention provides a pharmaceutical composition for a vaccine which comprises an adjuvant component which is any one of the modified polypeptides, one or more antigens, together with a pharmaceutically acceptable excipient.

Abstract: The present invention relates to modified bacterial polypeptides having immunomodulatory and immunostimulatory activity. Most specifically, the present invention relates to modified bacterial polypeptides having an amino acid sequence selected from SEQ ID NO. 1, SEQ ID NO. 2, SEQ ID NO. 3, SEQ ID NO. 4 and SEQ ID NO. 5. The modified polypeptides are the adjuvant components of a pharmaceutical composition for eliciting an immune response against an specific antigen present in the pharmaceutical composition. In a preferred embodiment, the invention provides a pharmaceutical composition for a vaccine which comprises an adjuvant component which is any one of the modified polypeptides, one or more antigens, together with a pharmaceutically acceptable excipient.

Abstract: Adjuvant for vaccines that comprises a non-lipidated bacterial outer-membrane polypeptide (Omp), in which the bacteria may be of those of Brucella genus. The adjuvant may be a modified polypeptide or may be, for example, the Omp19S polypeptide or the Omp16S polypeptide, parts or mixtures of the two. In a preferred embodiment, the adjuvant is the non-lipidated polypeptide included in SEQ ID No: 1, or parts thereof. In a further preferred embodiment, the adjuvant is the non-lipidated polypeptide included in SEQ ID No: 2 or parts thereof.

Abstract: Isolated chimeric proteins including up to ten copies of peptides, polypeptides or protein domains inserted in the amino termini of the Brucella spp. Lumazine synthase enzyme. Isolated nucleotide sequences codifying the chimeric proteins. Vectors, plasmids and transformed cells used for expressing the proteins. Monoclonal and polyclonal antibodies induced by the chimeric proteins. Hybridomas producing the monoclonal antibodies. Vaccines and pharmaceutical compounds including the chimeric proteins, nucleotide sequences and antibodies. A method to induce an immune response in higher organisms including the administration of effective amounts of the vaccines and pharmaceutical compounds. Biosensors including the chimeric proteins. Protein conjugates formed by the chimeric proteins and a ligand bound by means of covalent and noncovalent bonds.

Abstract: Adjuvant for vaccines that comprises a non-lipidated bacterial outer-membrane polypeptide (Omp), in which the bacteria may be of those of Brucella genus. The adjuvant may be a modified polypeptide or may be, for example, the Omp19S polypeptide or the Omp16S polypeptide, parts or mixtures of the two. In a preferred embodiment, the adjuvant is the non-lipidated polypeptide included in SEQ ID No: 1, or parts thereof. In a further preferred embodiment, the adjuvant is the non-lipidated polypeptide included in SEQ ID No: 2 or parts thereof.

Abstract: isolated chimeric proteins including up to ten copies of peptides, polypeptides or protein domains inserted in the amino termini of the Brucella spp. Lumazine synthase enzyme. Isolated nucleotide sequences codifying the chimeric proteins. Vectors, plasmids and transformed cells used for expressing the proteins. Monoclonal and polyclonal antibodies induced by the chimeric proteins. Hybridomas producing the monoclonal antibodies. Vaccines and pharmaceutical compounds including the chimeric proteins, nucleotide sequences and antibodies. A method to induce an immune response in higher organisms including the administration of effective amounts of the vaccines and pharmaceutical compounds. Biosensors including the chimeric proteins. Protein conjugates formed by the chimeric proteins and a ligand bound by means of covalent and noncovalent bonds.