The disclosure relates to polypeptides and pharmaceutical compositions comprising polypeptides that find use in the prevention or treatment of cancer, in particular breast cancer, ovarian cancer and colorectal cancer. The disclosure also relates to methods of inducing a cytotoxic T cell response in a subject or treating cancer by administering pharmaceutical compositions comprising the peptides, and companion diagnostic methods of identifying subjects for treatment. The peptides comprise T cell epitopes that are immunogenic in a high percentage of patients.

The disclosure relates to polypeptides and pharmaceutical compositions comprising polypeptides that find use in the prevention or treatment of cancer, in particular breast cancer, ovarian cancer and colorectal cancer. The disclosure also relates to methods of inducing a cytotoxic T cell response in a subject or treating cancer by administering pharmaceutical compositions comprising the peptides, and companion diagnostic methods of identifying subjects for treatment. The peptides comprise T cell epitopes that are immunogenic in a high percentage of patients.

The invention relates to a method of treatment or prophylaxis of cancer, wherein the cancer overexpresses exportin-1, the method comprising the administration of: a peptide capable of activating NK cell-mediated immunity to cancer cells that overexpress exportin-1, the peptide comprising or consisting of the amino acid sequence X.sup.nAX.sup.2X.sup.1, wherein X.sup.n is an amino acid sequence of between 5 and 12 residues, and X.sup.1 is any amino acid; or leucine or phenylalanine; and X.sup.2 is alanine, threonine or serine; or administration of one or more of a nucleic acid encoding the peptide; an immunogenic composition comprising the peptide; a complex comprising the peptide; a vesicle comprising the peptide or nucleic acid encoding the peptide; a dendritic cell comprising the peptide and/or comprising nucleic acid encoding the peptide; an activated NK cell, that has been activated by the peptide; or a virus or virus like particle comprising the peptide and/or comprising nucleic acid encoding the peptide.

The present disclosure provides T-cell modulatory multimeric polypeptides that comprise an immunomodulatory polypeptide and that comprise an epitope-presenting Wilms tumor peptide. A T-cell modulatory multimeric polypeptide is useful for modulating the activity of a T cell, and for modulating an immune response in an individual.

The present disclosure provides T-cell modulatory antigen-presenting polypeptides, including single-chain antigen-presenting polypeptides and multimeric antigen-presenting polypeptides. The present disclosure provides nucleic acids comprising nucleotide sequences encoding T-cell modulatory antigen-presenting polypeptides of the present disclosure, as well as cells genetically modified with the nucleic acids. A T-cell modulatory antigen-presenting polypeptide of the present disclosure is useful for modulating activity of a T cell. Thus, the present disclosure provides compositions and methods for modulating the activity of T cells, as well as compositions and methods for treating persons who have autoimmune disorders.

The present disclosure provides T-cell modulatory antigen-presenting polypeptides, including single-chain antigen-presenting polypeptides and multimeric antigen-presenting polypeptides. The present disclosure provides nucleic acids comprising nucleotide sequences encoding T-cell modulatory antigen-presenting polypeptides of the present disclosure, as well as cells genetically modified with the nucleic acids. A T-cell modulatory antigen-presenting polypeptide of the present disclosure is useful for modulating activity of a T cell. Thus, the present disclosure provides methods of modulating activity of a T cell.

Described herein are compositions and methods useful for treating hepatic inflammatory disorders. The compositions and methods utilize ubiquitous, non-tissue specific antigens associated with major histocompatibility complexes (MHCs) and coupled to a nanoparticle core to induce regulatory T cells and regulatory B cells.

Two-component vaccine formulations and methods are contemplated where the vaccine has an adjuvant component and a therapeutic component. The therapeutic component comprises preferably a recombinant therapeutic virus encoding a therapeutic antigen while the adjuvant component comprises a non-host cell or immune stimulating portion thereof. Notably, use of the adjuvant component will result in significant uptake of the therapeutic component into immune competent cells, even in the absence of receptors for entry of the therapeutic component. In addition, such adjuvant also stimulates expression of the therapeutic antigen.

The disclosure relates to methods of identifying fragments of a polypeptide that are immunogenic for a specific human subject, methods of preparing pharmaceutical compositions comprising such polypeptide fragments, pharmaceutical compositions comprising such polypeptide fragments, and methods of treatment using such compositions. The methods comprise identifying a fragment of the polypeptide that binds to multiple HLA of individual subjects.

Disclosed herein is a panel comprising one or more MHC multimers; and a panel comprising one or more pools of MHC multimers, wherein each pool comprises one or more MHC multimers; wherein said MHC multimers comprise an antigenic peptide P derived from a Borrelia antigenic polypeptide selected from the group consisting of OppA, DbpA, FlhF, FlaB and P37-42; as well as uses thereof in the detection of Borrelia-specific T cells and the diagnosis, treatment and monitoring of Borrelia disease in an individual.