472results about "Vaccines" patented technology

The immunoglobulins of the present invention are useful therapeutic immunoglobulins against mucosal pathogens such as S. mutans. The immunoglobulins contain a protection protein that protects the immunoglobulins in the mucosal environment. The invention also includes the greatly improved method of producing immunoglobulins in plants by producing the protection protein in the same cell as the other components of the immunoglobulins. The components of the immunoglobulin are assembled at a much improved efficiency. The method of the invention allows the assembly and high efficiency production of such complex molecules. The invention also contemplates the production of immunoglobulins containing protection proteins in a variety of cells, including plant cells, that can be selected for useful additional properties. The use of immunoglobulins containing protection proteins as therapeutic antibodies against mucosal and other pathogens is also contemplated.

The present invention relates to the provision of vaccines which are specific for a patient's tumor and are potentially useful for immunotherapy of the primary tumor as well as tumor metastases. In one aspect, the present invention relates to a method for providing an individualized cancer vaccine comprising the steps: (a) identifying cancer specific somatic mutations in a tumor specimen of a cancer patient to provide a cancer mutation signature of the patient; and (b) providing a vaccine featuring the cancer mutation signature obtained in step (a). In a further aspect, the present invention relates to vaccines which are obtainable by said method.

The present invention provides synthetic vaccines against a variety of pathogenic organisms and tumor cells in humans and other mammals based on biodegradable polymers containing polyester amide (PEA), polyester urethane (PEUR), and polyester urea (PEU) and immunostimulatory adjuvants. The vaccines can be formulated as a liquid dispersion of polymer particles or molecules in which are dispersed an immunostimulatory adjuvant, such as a TLR agonist, and whole protein or peptidic antigens containing MHC class I or class II epitopes derived from organism or tumor cell proteins. Methods of inducing an immune response via intracellular mechanisms to the pathogenic organism or tumor cells specific for the antigen in the invention compositions are also included.

Provided are nanoparticles and methods of using and making thereof. The inventive nanoparticle comprises a) an inner core comprising a non-cellular material; and b) an outer surface comprising a cellular membrane derived from a cell or a membrane derived from a virus. Medicament delivery systems or pharmaceutical compositions comprising the inventive nanoparticles are also provided. Further provided are immunogenic compositions comprising the inventive nanoparticles, and methods of using the inventive immunogenic compositions for eliciting an immune response, and for treating or preventing diseases or condition, such as neoplasm or cancer, or disease or conditions associated with cell membrane inserting toxin. Vaccines comprising the immunogenic composition comprising the nanoparticles are also provided.

The immunoglobulins of the present invention are useful therapeutic immunoglobulins against mucosal pathogens such as S. mutans. The immunoglobulins contain a protection protein that protects the immunoglobulins in the mucosal environment.The invention also includes the greatly improved method of producing immunoglobulins in plants by producing the protection protein in the same cell as the other components of the immunoglobulins. The components of the immunoglobulin are assembled at a much improved efficiency. The method of the invention allows the assembly and high efficiency production of such complex molecules.The invention also contemplates the production of immunoglobulins containing protection proteins in a variety of cells, including plant cells, that can be selected for useful additional properties. The use of immunoglobulins containing protection proteins as therapeutic antibodies against mucosal and other pathogens is also contemplated.

A method of modulating the plasma half-life of anti-glypican 3 antibody, a pharmaceutical composition comprising as an active ingredient the anti-glypican 3 antibody that has a plasma half-life that has been modulated, a method of preparing the anti-glypican 3 antibody and a pharmaceutical composition comprising the anti-glypican 3 antibody as an active ingredient are provided. Disclosed is a method of modulating the plasma half-life of anti-glypican 3 antibody by modifying an amino acid residue that is exposed on the surface of the anti-glypican 3 antibody; and anti-glypican 3 antibody that has a plasma half-life that has been modulated by amino acid residue modification, a pharmaceutical composition comprising as an active ingredient the anti-glypican 3 antibody, and a method of preparing the anti-glypican 3 antibody and producing a pharmaceutical composition comprising the anti-glypican 3 antibody as an active ingredient.

The present invention relates to nanoparticle vaccines comprised of a carrier, particularly polymerized lipids, having multiple copies of an antigen or combinations of different antigens displayed on the carrier. Such antigen-displaying nanoparticles may also display a targeting molecule on its surface in order to direct it to a specific site or cell type to optimize a desired immune response. The present invention also relates to encapsulating an antigen or combinations of different antigens within such nanoparticles, with or without a targeting molecule displayed on its surface. The antigens used in this invention are effective to produce an immune response against a variety of pathological conditions.

The invention is directed to methods for optimizing glycan processing in organisms (and in particular, plants) so that a glycoprotein having complex type bi-antennary glycans and thus 5 containing galactose residues on both arms and which are devoid of (or reduce in) xylose and fucose can be obtained. The invention is further directed to said glycoprotein obtained and host system comprising said protein.

A method for synthesizing influenza virus-like particles (VLPs) within a plant or a portion of a plant is provided. The method involves expression of influenza HA in plants and the purification by size exclusion chromatography. The invention is also directed towards a VLP comprising influenza HA protein and plants lipids. The invention is also directed to a nucleic acid encoding influenza HA as well as vectors. The VLPs may be used to formulate influenza vaccines, or may be used to enrich existing vaccines.

Methods for altering the N-glycosylation pattern of proteins in higher plants are provided. The methods comprise introducing into the plant a recombinant construct that provides for the inhibition of expression of α1,3-fucosyltransferase (FucT) and β1,2-xylosyltransferase (XylT) in a plant. Use of these constructs to inhibit or suppress expression of both of these enzymes, and isoforms thereof, advantageously provides for the production of endogenous and heterologous proteins having a “humanized” N-glycosylation pattern without impacting plant growth and development. Stably transformed higher plants having this protein N-glycosylation pattern are provided. Glycoprotein compositions, including monoclonal antibody compositions, having substantially homogeneous glycosylation profiles, and which are substantially homogeneous for the G0 glycoform, are also provided.

Glycan-optimized monoclonal antibodies that specifically bind CD20 antigen and which have improved effector function are provided. The anti-CD20 antibodies of the invention have a glycosylation pattern that results in an antibody composition having predominately the G0 glycoform, and thus comprise N-glycans that lack fucose (i.e., afucosylated) and galactose residues attached thereto. In some embodiments, these anti-CD20 antibodies comprise the light chain and heavy chain sequences of the rituximab anti-CD20 antibody, and thus represent afucosylated rituximab. Methods for producing these glycan-optimized anti-CD20 antibodies are also provided.

Regulatory T cells (Treg) limit autoimmunity but can also attenuate the magnitude of anti-pathogen and anti-tumor immunity. Understanding the mechanism of Treg function and therapeutic manipulation of Treg in vivo requires identification of Treg selective receptors. A comparative analysis of gene expression arrays from antigen specific CD4+ T cells differentiating to either an effector/memory or a regulatory phenotype revealed Treg selective expression of LAG-3 (CD223), a CD4-related molecule that binds MHC class II. LAG-3 expression on CD4+ T cells correlates with the cells' in vitro suppressor activity, and ectopic expression of LAG-3 on CD4 T cells confers suppressor activity on the T cells. Antibodies to LAG-3 inhibit suppression both in vitro and in vivo. LAG-3 marks regulatory T cell populations and contributes to their suppressor activity.

Methods and compositions are disclosed to engineer plastids comprising heterologous genes encoding immuno-activating domains fused to an extracellular domain (ECD) of a receptor or surface glycoprotein, a growth factor or an enzyme and produced within a subcellular organelle, such as a chloroplast. The immuno-activating domains may include those regions of a protein capable of modulating the interaction between immune effector cells via proteins containing stereoselective binding domains and specific ligands, such as the Fc regions of antibodies. The present disclosure also demonstrates the utility of plants, including green algae, for the production of complex multi-domain fusion proteins as soluble bioactive therapeutic agents.

The present invention relates to peptides, proteins, nucleic acids and cells for use in immunotherapeutic methods. In particular, the present invention relates to the immunotherapy of cancer. The present invention furthermore relates to tumor-associated T-cell peptide epitopes, alone or in combination with other tumor-associated peptides that can for example serve as active pharmaceutical ingredients of vaccine compositions that stimulate anti-tumor immune responses, or to stimulate T cells ex vivo and transfer into patients. Peptides bound to molecules of the major histocompatibility complex (MHC), or peptides as such, can also be targets of antibodies, soluble T-cell receptors, and other binding molecules.

Disclosed is a method to recover an antigen presenting cells (APCs) and immune cells rich mixture (AIM) from peripheral blood mononuclear cells (PBMC) mobilized with one or more cell adhesion inhibitors for the preparation of an AIM vaccine or an AIM adoptive immunotherapy preparation. In addition, AIM mobilization can be enhanced by priming, simultaneously or in sequence, one or more of a combination of different chemical compounds, cytokines, hormones, growth factors, etc. The interaction of chemokines and chemokine receptors enable tumor cells attachment or in close proximity to antigen presenting cells and immune cells which possess similar receptors in a micro niche environment. Severing the chemokine/chemokine receptor linkage by a cell adhesion inhibitor will release these specifically primed cell mixtures into the peripheral blood. The collection of these cells from the peripheral blood has never been described and is the basis of this invention. AIM cells can either be used alone or better still, be induced into more target specific preparations with additions, modifications and incubation, pre or post cell adhesion inhibitors mobilization, with vaccines, different target specific antigens, peptides, chemotherapeutic agents, oncolytic viral therapeutic agents, cytokines, co-stimulatory molecules, anti-regulatory T cell therapeutic agents, anti-CTLA4, anti-PD1 molecules and other methodologies of immunological enhancement known to the art. The AIM vaccine or AIM adoptive immunotherapy preparation can then be used, but not limited to, the treatment of cancer and other diseases.

The invention is directed to recombinant antibodies which bind to Sclerotinia sclerotiorum antigens and comprise a single chain variable fragment (scFv). The antigen may be selected from SSPG1d or a portion thereof, aspartyl protease or a portion thereof, or whole Sclerotinia sclerotiorum mycelium. The invention also provides an antibody linked to an anti-fungal polypeptide. The invention extends to nucleic acid sequences encoding the antibodies, and expression vectors comprising the nucleic acid sequences. The invention is also directed to transgenic plants, seeds, tissues or cells transformed with the expression vectors. Methods for producing a transgenic plant that is resistant to Sclerotinia sclerotiorum, and for detecting Sclerotinia sclerotiorum in a biological sample utilizing an antibody which binds to Sclerotinia sclerotiorum antigen, and immunoassay kit for same are also provided.

The present invention relates to methods for predicting T cell epitopes. In particular, the present invention relates to methods for predicting whether modifications in peptides or polypeptides such as tumor-associated neoantigens are immunogenic or not. The methods of the invention are useful, in particular, for the provision of vaccines which are specific for a patient's tumor and, thus, in the context of personalized cancer vaccines.