This invention provides immunogenic compositions comprising an immune stimulant and an respiratory syncytial virus (RSV) oligopeptide or an unglycosylated RSV polypeptide. The RSV oligopeptides are shown in SEQ ID NO: 3-33. The unglycosylated RSV polypeptide may consist essentially of the ectodomain of an RSV G protein, such as that shown in SEQ ID NO: 2 or the ectodomain of an RSV F protein such as the ectodomain of the F protein shown in SEQ ID NO: 39.

A method of producing dendritic gold nanoparticles by combining a gold precursor solution, a reducing agent, and a bifunctional peptide having an amine-rich amino acid sequence into a buffered aqueous solution in a single container, and agitating the mixture causing the formation of the dendritic gold nanoparticles having a surface with a positive charge and a second end portion of the bifunctional peptide exposed on the surface of the dendritic gold nanoparticles. The dendritic gold nanoparticles may be used to deliver therapeutic, diagnostic, and/or immunogenic amino acid sequences as portions of the bifunctional peptide.

A nanoparticle construct includes a plurality of plant virus or virus-like particles electrostatically coupled to a plurality of nanoparticles having a different surface charge than the plant virus or virus-like particles. The nanoparticle construct upon delivery to a subject can provide a sustained release of the plant virus or virus-like particles and/or nanoparticles to a cell or tissue of the subject.

Compositions nod methods are provided for the prevention and treatment of bacterial infections, including pneumococcal infections. Compositions provided herein comprise a variety immunogenic fusion proteins, wherein at least one polypeptide component of a given fusion protein comprises a CbpA polypeptide and/or a cytolysoid polypeptide, or an active variant or fragment thereof. Methods are provided for the prevention and treatment of bacterial infections, including pneumococcal infections by employing die various immunogenic fusion proteins having at least one polypeptide component comprising a CbpA polypeptide and/or acytolysoid polypeptide, or an active variant or fragment thereof.

Embodiments of the invention are directed to fibrillar adjuvants. Epitopes assembled into nanofibers by a short synthetic fibrillization domain elicited high antibody titers in the absence of any adjuvant.

Compositions and methods are provided for the prevention and treatment of bacterial infections, including pneumococcal infections. Compositions provided herein comprise a variety of immunogenic fusion proteins, wherein at least one polypeptide component of a given fusion protein comprises a CbpA polypeptide and/or a cytolysoid polypeptide, or an active variant or fragment thereof. Methods are provided for the prevention and treatment of bacterial infections, including pneumococcal infections by employing the various immunogenic fusion proteins having at least one polypeptide component comprising a CbpA polypeptide and/or a cytolysoid polypeptide, or an active variant or fragment thereof.

The present invention relates to a polypeptide comprising at least three peptide fragments consisting of 10 to 50 consecutive amino acid residues of at least one wild-type allergen fused to the N- and C-terminus of a surface polypeptide of a virus of the hepadnaviridae family or at least one fragment of said surface polypeptide.

The present disclosure provides materials and methods for cell-free expression of epitopes for immunotherapy applications. In particular, the present disclosure provides materials and methods for expressing concatenated epitopes using a cell-free protein synthesis platform for high throughput, large scale, and unbiased epitope screening and the generation of multi-epitope vaccines.

The present embodiments provide for an S. aureus (SA) Multiple Antigen Presenting System (MAPS) immunogenic composition comprising an immunogenic polysaccharide which induces an immune response, where at least one S. aureus (SA) peptide or polypeptide antigen is associated to the immunogenic polysaccharide by complementary affinity molecules. In some embodiments, the immunogenic polysaccharide can be an antigenic capsular polysaccharide of a Type 5 or Type 8 from S. aureus, or alternatively, a different immunogenic capsular or noncapsular polysaccharide, and where the protein or peptide SA antigens are indirectly linked via an affinity binding pair. The present SA-MAPS immunogenic compositions can elicit both humoral and cellular immune responses to the immunogenic polysaccharide and one or multiple SA antigens at the same time.

The present invention relates to parvovirus mutated structural proteins comprising insertions of mimotopes of a HER2, compositions, multimeric structures, medicaments and vaccines comprising the same, nucleic acids, expression cassettes, constructs, vectors and cells comprising the nucleic acids, methods of preparing the structural proteins and methods of inducing a B-cell response or of treating a HER2-related disease.