摘要:
The invention relates to polyepitope carrier proteins that comprise at least five CD4+T cell epitopes, for conjugation to capsular polysaccharides. The carrier proteins are use useful as components of vaccines that can elicit a T-cell dependent immune response. These vaccines are particularly useful to confer protection against infection from encapsulated bacteria in infants between the ages of 3 months and about 2 years.
摘要:
A method for antigen independent activation of T cells comprising contacting T cells with a combination of cytokines such as two or more of interleukin-2, interleukin-6 and tumor necrosis factor α.
摘要:
The invention provides proteins from Neissena meningitidis (strains A & B), including amino acid sequences, the corresponding nucleotide sequences, expression data, and serological data. The proteins are useful antigens for vaccines, immunogenic compositions, and/or diagnostics.
摘要:
This invention provides polypeptides of Helicobacter pylori cytotoxin protein. The invention also provides prophylactic and therapeutic vaccines comprising the polypeptides of Helicobacter pylori cytotoxin protein, and methods for their preparation.
摘要:
A plasmid isolated from Chlamydia trachomatis is described, which comprises 8 genes encoding proteins useful in the formation of vaccines or diagnostic test for determining the bacterium or specific antibodies generated during C. trachomatis infections. In particular, the recombinant fusion protein MS2-pgp3D is described, which comprises polypeptide sequences encoded by pCT and is immunogenic in the course of infections in man. A method for preparing the recombinant fusion protein MS2-pgp3D in E. coli is also described.
摘要:
Immunological active polypeptides with no or reduced toxicity useful for the preparation of an antipertussis vaccine. Method for the preparation of said polypeptides which comprises, cultivating a microorganism transformed with a hybrid plasmid including the gene/s which codes for at least one of said polypeptides in a suitable medium and recovering the desired polypeptide from the cells or from the culture medium.
摘要:
Immunologically active polypeptides with no or reduced toxicity useful for the preparation of an antipertussis vaccine. Method for the preparation of said polypeptides which comprises, cultivating a microorganism transformed with a hybrid plasmid including the gene/s which codes for at least one of said polypeptides in a suitable medium and recovering the desired polypeptide from the cells or from the culture medium.
摘要:
Compositions comprising a first biological molecule from a Neisseria bacterium and a second biological molecule from a Neisseria bacterium. The term “biological molecule” includes proteins and nucleic acids. Preferred Neisseria species are N. meningitidis and N. gonorrhoeae
摘要:
An immunogenic detoxified protein comprising the amino acid sequence of subunit A of a cholera toxin (CT-A) or a fragment thereof or the amino acid sequence of subunit A of an Escherichia coli heat labile toxin (LT-A) or a fragment thereof wherein the amino acids at, or in positions corresponding to Ser-63 and Arg-192 are replaced with another amino acid. The immunogenic detoxified protein is useful as vaccine for Vibrio cholerae or an enterotoxigenic strain of Escherichia coli and is produced by recombinant DNA means by site-directed mutagenesis.
摘要:
The invention relates to peptide, oligopeptide or polypeptide compounds that are capable of eliciting a protective immune response against the capsular polysaccharide of group B Streptococcus (GBS), particularly type III GBS. Such compounds are useful in the development of vaccines that are effective against diseases caused by these pathogens.