1631 results about "Vaccination" patented technology

A method is disclosed for enhanced vaccination and genetic vaccination of mammals. The vaccination is accomplished by delivering molecules such as proteins and nucleic acids into skeletal muscle and other cells residing in the skeletal muscle in vivo. The protein or nucleic acid is first injected into the muscle at one or multiple sites. Immediately or shortly after injection, electrodes are placed flanking the injection site and a specific amount of electrical current is passed through the muscle. The electrical current makes the muscle permeable, thus allowing the pharmaceutical drug or nucleic acid to enter the cell. The efficiency of transfer permits robust immune responses using DNA vaccines and produces sufficient secreted proteins for systemic biological activity to be observed.

The present invention relates to MHC-peptide complexes and uses thereof in the diagnosis of, treatment of or vaccination against a disease in an individual. More specifically the invention discloses MHC complexes comprising cancer antigenic peptides and uses there of.

The present invention relates to a therapeutic polypeptide and methods for its creation and use for modulating an immune response in a host organism in need thereof. In particular, the invention relates to the administration to an organism in need thereof, of an effective amount of a pre-coupled polypeptide complex comprising a lymphokine polypeptide portion, for example IL-15 (SEQ ID NO: 5, 6), IL-2 (SEQ ID NO: 10, 12) or combinations of both, and an interleukin receptor polypeptide portion, for example IL-15Ra (SEQ ID NO: 7, 8), IL-2Ra (SEQ ID NO: 9, 11) or combinations of both, for augmenting the immune system in, for example, cancer, SCID, AIDS, or vaccination; or inhibiting the immune system in, for example, rheumatoid arthritis, or Lupus. The therapeutic complex of the invention surprisingly demonstrates increased half-life, and efficacy in vivo.

The invention is a method for detecting and measuring T-cell receptor (TCR) repertoires from mammalian lymphocytes. The method is based on the use of the multiple sets of unique primers to amplify 22 regions of the TCR Vβ region and thereby detect clonal expansions related to antigen stimulation of the immune system. Kits containing sets of primers and specialized analytical statistical software for use in determining clonal expansion in humans and mice are disclosed. The reliability, efficiency and short assay time in using the method is well suited to monitoring immune response to vaccination and therapeutic treatments for immune disorders.

A hypodermic syringe and a plurality of single use cartridges able to be successively loaded into said syringe for providing rapid dispensing of a medicant to numerous users without possibility of contamination. The cartridges are continuously fed through the syringe for the quick and efficient inoculation of patients. An operator inserts a needle into a patient by pushing in a trigger. Prior to the needle being inserted into the patient, a disinfectant is dispersed from the cartridge to maintain sterility. An operator then pushes in a plunger forcing the medication through the needle into the patient. The plunger is pulled back into its original location after use. The needle is pulled back with the plunger out of the patient's skin and back into the cartridge. A new cartridge on a clip is then advanced into the syringe for use in inoculating the next patient needing medication. The syringe and cartridge dispenser further maintains a sterile environment during successive vaccinations reducing the transmission of any disease from patient to patient.

The present invention describes the use of nucleic acid barcodes as specific labels for MHC multimers to determine the antigen responsiveness in biological samples. After cellular selection the barcode sequence will be revealed by sequencing. This technology allows for detection of multiple (potentially >1000) different antigen-specific cells in a single sample. The technology can be used for T-cell epitope mapping, immune-recognition discovery, diagnostics tests and measuring immune reactivity after vaccination or immune-related therapies.

The present invention comprises the discovery and development of an effective cryoprotectant composition, without containing skim milk or any other animal-derived compounds, to achieve long-term stability of freeze-dried lactic acid bacteria (LAB), at different temperatures, whereby the retention of viability of the freeze-dried LAB after 6 months of storage, preferably after 9 months of storage, more preferably after 12 months of storage is more than 50%. The invention is in the field of producing freeze dried bacteria, in particular Lactic acid bacteria. More in particular, the invention relates to the use of a novel combination of cryoprotectants for increasing the viability of bacteria after freeze drying, improving the texture of the lyofilized cake for easy grinding and improving the long term stability of the freeze dried bacteria at different temperature conditions. The invention further relates to such freeze dried bacteria for use in food industry or in human or animal health applications. More in particular, the invention relates to the increased viability and long-term storage of recombinant bacteria capable of expressing heterologous proteins or peptides and administered to humans or animals for therapeutic or vaccination purposes.

A packaging cell line capable of complementing recombinant adenoviruses based on serotypes from subgroup B, preferably adenovirus type 35. The cell line is preferably derived from primary, diploid human cells (e.g., primary human retinoblasts, primary human embryonic kidney cells and primary human amniocytes) which are transformed by adenovirus E1 sequences either operatively linked on one DNA molecule or located on two separate DNA molecules, the sequences being operatively linked to regulatory sequences enabling transcription and translation of encoded proteins. Also disclosed is a cell line derived from PER.C6 (ECACC deposit number 96022940), which cell expresses functional Ad35 E1B sequences. The Ad35-E1B sequences are driven by the E1B promoter or a heterologous promoter and terminated by a heterologous poly-adenylation signal. The new cell lines are useful for producing recombinant adenoviruses designed for gene therapy and vaccination. The cell line can also be used for producing human recombinant therapeutic proteins such as human growth factors and human antibodies. In addition, the cell lines are useful for producing human viruses other than adenovirus such as influenza virus, herpes simplex virus, rotavirus, measles virus.

The present invention provides compositions and methods for modulating immune responses to antigens. One aspect of the present invention relates to a particle-based antigen delivery system (vaccination node) that comprises a hydrogel particle capable of both antigen presentation and DC activation. The VN may further comprise a chemoattractant-loaded microsphere capable of attracting DCs to the site of administration. Another aspect of the present invention relates to the use of the VN to modulate antigen presenting cells activation for the prevention and/treatment of various diseases, such as infectious diseases, cancers and autoimmune diseases.

The present invention is based on the development of a dual promoter system (preferably a RNA pol I-pol II system) for the efficient intracellular synthesis of viral RNA. The resultant minimal plasmid-based system may be used to synthesize any RNA virus, preferably viruses with a negative single stranded RNA genome. The viral product of the system is produced when the plasmids of the system are introduced into a suitable host cell. One application of the system is production of attenuated, reassortant influenza viruses for use as antigens in vaccines. The reassortant viruses generated by cotransfection of plasmids may comprise genes encoding the surface glycoproteins hemagglutinin and neuraminidase from an influenza virus currently infecting the population and the internal genes from an attenuated influenza virus. An advantageous property of the present invention is its versatility; the system may be quickly and easily adapted to synthesize an attenuated version of any RNA virus. Attenuated or inactivated RNA viruses produced by the present invention may be administered to a patient in need of vaccination by any of several routes including intranasally or intramuscularly.

The invention includes compositions and methods for enhancing immunopotency of an immune cell by way of inhibiting a negative immune regulator in the cell. The present invention provides vaccines and therapies in which antigen presentation is enhanced through inhibition of negative immune regulators. The present invention also provides a mechanism to break self tolerance in tumor vaccination methods that rely on presentation of self tumor antigens.

Methods for eliciting in an animal in need thereof a cell-mediated immune response specific to an antigen, the method comprising providing an antigen preparation comprising particles on the surface of which the antigen is attached, and administering the antigen preparation to the animal, wherein the particles are taken up by antigen presenting cells (APC) of the animal via phagocytosis, forming a phagosome inside the APC, wherein the antigen is attached to the surface of the particle in such a way that the antigen is released in the phagosome before the phagosome fuses with a late endosome or a lysosome, and wherein the antigen is cross-presented on a Class I MHC molecule. Also provided are particulate antigen preparations or particulate vaccines that can be delivered to an animal in need thereof for vaccination against, for preventing or treating, a disease related to the antigen, such as cancer and a viral infection.

The present invention relates to techniques of skin-targeted non-invasive gene delivery to elicit immune responses and uses thereof. The invention further relates to methods of non-invasive genetic immunization in an animal and/or methods of inducing a systemic immune or therapeutic response in an animal following topical application of vectors, products therefrom and uses for the methods and products therefrom. The methods can include contacting skin of the animal with a vector in an amount effective to induce the systemic immune or therapeutic response in the animal as well as such a method further including disposing the vector in and/or on the delivery device. The vector can be gram negative bacteria, preferably Salmonella and most preferably Salmonella typhimurium.

This invention is directed to preparation and expression of synthetic genes encoding polypeptides containing protective epitopes of botulinum neurotoxin (BoNT). The invention is also directed to production of immunogenic peptides encoded by the synthetic genes, as weel as recovery and purification of the immunogenic peptides from recombinant organisms. The invention is also directed to methods of vaccination against botulism using the expressed peptides.

The invention provides methods and compositions for targeting a separately generated immune response to a specific organ or tissue, e.g. one affected by cancer, using one or more agents with a tropism for the organ or tissue or that can be specifically localized to the desired organ or tissue. For example, the invention provides methods ands compositions for treating liver metastases from colorectal cancer using a combination of a granulocyte/macrophage colony stimulating factor (GM-CSF) augmented tumor cell vaccination and Listeria monocytogenes (LM) infection.

The present invention relates to new immunogenic compositions comprising conjugated Streptococcus pneumoniae capsular saccharide antigens (glycoconjugates) and uses thereof. Immunogenic compositions of the present invention will typically comprise at least one glycoconjugate from a S. pneumoniae serotype not found in PREVNAR®, SYNFLORIX® and/or PREVNAR 13®. The invention also relates to vaccination of human subjects, in particular infants and elderly, against pneumoccocal infections using said novel immunogenic compositions.

New methods and reagents for vaccination are described which generate a CD8 T cell immune response against malarial and other antigens such as viral and tumour antigens. Novel vaccination regimes are described which employ a priming composition and a boosting composition, the boosting composition comprising a non-replicating or replication-impaired pox virus vector carrying at least one CD8 T cell epitope which is also present in the priming composition.

The present invention relates to MHC-peptide complexes and uses thereof in the diagnosis of, treatment of or vaccination against a disease in an individual. More specifically the invention discloses MHC complexes comprising Mycobacterium tuberculosis antigenic peptides and uses there of.

An adhesive patch is provided wherein the patch includes a porous backing having a front side and a back side. The patch also includes a therapeutic formulation located on the front side of the backing. The backing includes a flexible sheet of water insoluble porous material. The therapeutic formulation includes a combination of a antiviral agent useful for treating a viral infection in a mammal (e.g., human), a medicament that relieves topical discomfort, an adhesive, and a solvent. The solvent can preferably include a fragrance.

The present invention relates to peptide-like compounds, e.g. aminocarboxylic acid amide derivatives, and to methods of using same to stimulate cells of the immune system, bone marrow and other organs. The present compounds can be used to enhance vaccination, increase synthesis of and enhance function of blood cell components and enhance anti-neoplastic effects of various agents. The compounds of the invention can be used to produce a variety of further pharmacologic effects.

The invention provides an inactivated Zika virus vaccine. The inactivated Zika virus vaccine is obtained by: performing ultrafiltration and concentration on Zika virus liquid after inactivation, centrifuging the concentrated virus liquid by adopting a sucrose density zone, performing ion exchange and concentration sterilization on a centrifugal product to obtain a Zika virus vaccine stock solution, diluting the vaccine stock solution until the total protein content is not more than 20mu g/ml, and adding an adjuvant to obtain a vaccine semi-finished product. The method for preparing the vaccine provided by the invention is simple, convenient and easy to operate, the cost is saved, the produced vaccine is suitable for Asian people, a unit dose of the Zika virus liquid is high in immunogenicity, the content of hybrid protein is low, the side effect after injection is small, and the safety is high, so that the vaccine is suitable for vaccination of fertile women before pregnancy, can avoid newborn Brazil microcephaly caused by infection of Zika virus, and is significant in social value and market efficiency.