Disclosed are yeast-based immunotherapeutic compositions, hepatitis B virus (HBV) antigens, and fusion proteins for the treatment and/or prevention of HBV infection and symptoms thereof, as well as methods of using the yeast-based immunotherapeutic compositions, HBV antigens, and fusion proteins for the prophylactic and/or therapeutic treatment of HBV and/or symptoms thereof.

Embodiments of the present invention are generally related to a method of enhancing the transfection efficiency and immunological/pharmacological/therapeutic responses of concurrent gene-based vaccinations or therapies delivered by a wide range of non-viral particles, viral vectors or viral-biomaterials hybrid particles. In particular, embodiments of the present invention are directed to a method of electroporation which enhances the transfection efficiency of RNA replicon loaded lipid-based nanoparticles in-vivo as well as greatly improves immunogen-specific immune responses of such RNA-based vaccinations. This invention also applies to other gene-based vaccination and therapy using non-viral particles, viral based vectors or viral-biomaterials hybrid particles, in conjunction with the said electroporation regimen.

The present invention generally relates to a dynamic nanoparticle used for vaccination. Specifically, the claimed product comprises of an adaptive nanoparticle wherein both the outer surface and the inner core are customizable for targeted application.

An isolated monoclonal antibody or antigen-binding fragment that specifically binds to stage-specific embryonic antigen 4. The monoclonal antibody or antigen-binding fragment includes a heavy-chain CDR1 having the sequence of SEQ ID NO: 33 or SEQ ID NO: 40, a heavy-chain CDR2 having the sequence of SEQ ID NO: 34 or SEQ ID NO: 39, a heavy-chain CDR3 having the sequence of SEQ ID NO: 35 or SEQ ID NO: 41, a light-chain CDR1 having the sequence of SEQ ID NO: 36 or SEQ ID NO: 42, a light-chain CDR2 having the sequence of SEQ ID NO: 37 or SEQ ID NO: 43, and a light-chain CDR3 having the sequence of SEQ ID NO: 38 or SEQ ID NO: 44. Also disclosed is an anti-tumor method carried out by administering the above monoclonal antibody or antigen-binding fragment to a subject having a tumor that expresses stage-specific embryonic antigen 4. Further provided are nucleic acids encoding the above sequences and recombinant cells containing the nucleic acids.

The present application describes an antibody-coding, non-modified or modified RNA and the use thereof for expression of this antibody, for the preparation of a pharmaceutical composition, in particular a passive vaccine, for treatment of tumours and cancer diseases, cardiovascular diseases, infectious diseases, autoimmune diseases, virus diseases and monogenetic diseases, e.g. also in gene therapy. The present invention furthermore describes an in vitro transcription method, in vitro methods for expression of this antibody using the RNA according to the invention and an in vivo method.

Provided herein are methods and compositions for treating a subject having cancer by administering to the subject a cancer vaccine accompanied by administration of a long acting IL-2R??-biased agonist.

The disclosure relates to compositions and methods for the preparation, manufacture and therapeutic use of combinations of immunomodulatory polynucleotides (e.g., mRNAs) encoding an immune response primer polypeptide (e.g., an interleukin 23 (IL-23) polypeptide or an interleukin 36 (IL-36-gamma) polypeptide), and an immune response co-stimulatory signal polypeptide (e.g., an OX40L polypeptide).

The present invention provides a cell-based method for identification of an adjuvant and adjuvant combinations and a composition of a vaccine that includes the adjuvant and adjuvant combinations. The method comprises the steps: using an adjuvant or adjuvant combination to treat at least one type of antigen-presenting cells and measuring amount of at least one cytokine produced by the antigen-presenting cells.

Disclosed are means, methods, and compositions, useful for augmenting immune response to tumor cell death occurring in the body, wherein the tumor cell death acts as a source of antigens to stimulate an anti-cancer immune response. In one embodiment of the invention cryosurgery is performed in a manner to facilitate immune mediated killing of distant tumors, in effect causing an abscopal reaction, the amplification of the abscopal reaction is performed by preimmunization with antigen compositions generated to target tumor endothelium. In another embodiment the invention teaches the amplification of abscopal effect by preimmunizing with placental and/or tumor antigens prior to induction of necrotic cell death through means such as cryoablation, hyperthermia, radiation therapy, radiation therapy and intravenous vitamin C, and chemotherapy.

Disclosed are yeast-based immunotherapeutic compositions comprising Brachyury antigens, and methods for the prevention and/or treatment of cancers characterized by the expression or overexpression of Brachyury.