摘要:
The present invention is based on peptide binding specificities of HLA DR4w4, DR1 and DR7. Peptides binding to these DR molecules have a motif characterized by a large aromatic or hydrophobic residue in position 1 (Y, F, W, L, I, V, M) and a small, non charged residue in position 6 (S, T, C, A, P, V, I, L, M). In addition, allele-specific secondary effects and secondary anchors are defined, and these results were utilized to derive allele specific algorithms. By the combined use of such algorithms peptides capable of degenerate DR1, 4, 7 binding were identified.
摘要:
A method of identifying potential polypeptide vaccines to an agent, such as viruses, bacteria, and parasites. A critical binding segment of a first polypeptide known to bind to a first MHC type, is ascertained. The effect of replacing each of the amino acids in the critical segment, upon binding of that segment to the first MHC type, is evaluated. Following this, a protein produced by the agent is scanned for at least one trial amino acid sequence which the foregoing evaluation indicates will be a good binder to the first MHC type. When a potentially good binding sequence is found, a polypeptide containing such sequence can be evaluated as a synthetic vaccine.
摘要:
Disclosed herein are polynucleotides encoding multi-epitope polypeptides and assemblies thereof, and their use for treating or limiting Toxoplasma gondii infection.
摘要:
Heteroclitic analogs of Class I epitopes are prepared by providing conservative or semi-conservative amino acid substitutions at positions 3 and/or 5 and/or 7 of these epitopes. The analogs are useful in eliciting immune responses with respect to the corresponding wildtype epitopes.
摘要:
This invention uses our knowledge of the mechanisms by which antigen is recognized by T cells to identify and prepare human papillomavirus (HPV) epitopes, and to develop epitope-based vaccines directed towards HPV. More specifically, this application communicates our discovery of pharmaceutical compositions and methods of use in the prevention and treatment of HPV infection.
摘要:
The invention relates to the field of biology. In particular, it relates to multi-epitope nucleic acid and peptide vaccines and methods of designing such vaccines to provide increased immunogenicity.
摘要:
The present invention provides compositions and methods of inhibiting or inducing activation of T cells in a patient. The methods comprise administering a therapeutically effective dose of pharmaceutical compositions comprising a pharmaceutically acceptable carrier and peptides of between about 4 and about 20 residues, that bind antigen binding sites on MHC molecules encoded by substantially all alleles of a DR locus. These peptides are referred to as pan DR binding peptides. The pan DR binding peptides can be used to inhibit immune responses associated with immunopathologies, such as autoimmunity, allograft rejection and allergic responses. The peptides can also be used in combination with CTL peptides to enhance a CTL response.
摘要:
The present invention provides the means and methods for selecting immunogenic peptides and the immunogenic peptide compositions capable of specifically binding glycoproteins encoded by HLA alleles and inducing T cell activation in T cells restricted by the allele. The peptides are useful to elicit an immune response against a desired antigen.
摘要:
This invention uses our knowledge of the mechanisms by which antigen is recognized by T cells to identify and prepare human papillomavirus (HPV) epitopes, and to develop epitope-based vaccines directed towards HPV. More specifically, this application communicates our discovery of pharmaceutical compositions and methods of use in the prevention and treatment of HPV infection.