The invention relates to a mutated HPV66 L1 protein (or a variant thereof), a sequence encoding the same, a method for preparing the same, and a virus-like particle comprising the same, wherein the protein (or a variant thereof) and the virus-like particle can induce the generation of neutralizing antibodies against at least two HPV types (e.g. HPV66 and HPV56, or HPV66, HPV56 and HPV53), and therefore can be used to prevent infection by said at least two HPV types, and a disease caused by said infection, such as cervical cancer and condyloma acuminatum. The invention further relates to the use of the protein and the virus-like particle in the manufacture of a pharmaceutical composition or a vaccine for preventing infection by said at least two HPV types, and a disease caused by said infection, such as cervical cancer and condyloma acuminatum.

Methods for generating immune responses using adenovirus vectors that allow multiple vaccinations with the same adenovirus vector and vaccinations in individuals with preexisting immunity to adenovirus are provided.

Provided herein are endothelin receptor antagonistic lasso peptides and related compositions and methods for the management, prevention and/or treatment of an endothelin B receptor (ETBR)-mediated proliferative disease, such as cancer. Biosynthetic methods for producing the lasso peptides are also provided. In some embodiments, the method comprises administering to the subject a therapeutic effective amount of a lasso peptide, wherein the lasso peptide comprises an amino acid sequence selected from SEQ ID NOS:1-17 and 42-56. In particular embodiments, the lasso peptide is GI-D9 cyclized.

T cell receptors that recognize or bind to human papilloma virus (HPV) antigens, genetically engineered cells and cell-based therapies are provided.

The present invention relates to: a composition for delivering a viral antigen-derived CD8.sup.+ T cell antigen epitope or a peptide comprising same to the cytoplasm of a target cell to thereby present the epitope or peptide to major histocompatibility complex class I (MHC-1), which is an antigen-presenting molecule on the cell surface; a composition comprising same; and a use thereof.

The invention covers the use of certain classes of lipids including cationic lipids in ex-vivo dendritic cell therapies. The cationic lipids enhance antigen uptake, processing and presentation of the processed antigens by dendritic cells to CD8+ and CD4+ T-cells via the MHC classes I and II presentation pathways respectively. Antigen uptake via cationic lipid by dendritic cells result in significant lowering of the population of the immune suppressive regulatory T cells in the tumors and a significant increase of the tumor targeting cytotoxic T-cells. Loss of regulatory T cells and increase of tumor specific cytotoxic cells are conducive to effective elimination of the tumors.

Embodiments of the present disclosure pertain generally to head and neck squamous cell carcinomas (HNSCCs) related to human papillomavirus subtype 16 (HPV16) infections. More particularly, the present disclosure provides novel immunogenic epitopes from HPV16 E2, E6 and E7 antigens restricted by common human leukocyte antigen (HLA) alleles for the diagnosis and treatment of HNSCC. The HPV16 epitopes identified in the present disclosure can be used in combination with blockade of HPV16+ HNSCC-specific checkpoints for targeted immunotherapy.

Vaccine formulations are described comprising physically separated, lyophilized antigens and adjuvant components, which may be in lyoparticle form, as well as methods of using and making such formulations. Reconstituted formulations are also described.

This disclosure provides compositions, pharmaceutical preparations, and uses of polyribonucleotides encoding one or more immunogenic polypeptides. In particular, this disclosure features circular polyribonucleotide encoding one or more immunogenic polypeptides.

In one aspect, the invention relates to a composition including a first polypeptide having the sequence set forth in SEQ ID NO: 1 and a second polypeptide having the sequence set forth in SEQ ID NO: 2. In one embodiment, the composition includes about 120 μg/ml of a first polypeptide including the amino acid sequence set forth in SEQ ID NO: 1, 120 μg/ml of a second polypeptide including the amino acid sequence set forth in SEQ ID NO: 2, about 2.8 molar ratio polysorbate-80 to the first polypeptide, about 2.8 molar ratio polysorbate-80 to the second polypeptide, about 0.5 mg/ml aluminum, about 10 mM histidine, and about 150 mM sodium chloride. In one embodiment, a dose of the composition is about 0.5 ml in total volume. In one embodiment, two-doses of the composition induce a bactericidal titer against diverse heterologous subfamily A and subfamily B strains in a human.