48 results about "Active immunisation" patented technology

The invention provides a vaccine for immunizing poultry and other animals against infection by a gram-negative bacteria, and a method of immunizing an animal using the vaccine. The vaccine may contain purified siderophore receptor proteins derived from a single strain or species of gram-negative bacteria or other organism, which are cross-reactive with siderophores produced by two or more strains, species or genera of gram-negative bacteria. The invention further provides a process for isolating and purifying the siderophore receptor proteins, and for preparing a vaccine containing the proteins. Also provided is a method for diagnosing gram-negative sepsis.

A method to alter the phenotype of animals, e.g., avians, which employs passive and active immunization is provided.

Novel hapten-carrier conjugates are capable of inducing the production of antibodies, in vivo, that specifically bind to nicotine. These conjugates comprise a nicotine hapten conjugated to an immunogenic carrier protein. The novel conjugates preserve the chirality of nicotine in its native (S)-(−) state, and have good stability properties. The conjugates are useful in formulating vaccines for active immunization, that are used to prevent and treat nicotine addiction. The antibodies raised in response to the nicotine hapten-carrier conjugate are used for passive immunization. These antibodies are administered for prevention and treatment of nicotine addiction.

The present invention relates to prevention and treatment of Alzheimer's disease (AD). More specifically, the invention relates to use of a non-wild type protofibril or compound(s) with protofibril forming activity for active immunisation in the purpose of treating or preventing AD. The invention further relates to a peptide, Aβ-Arc, with high protofibril forming activity as well as several applications thereof, such as antibodies against said peptide for passive immunisation against AD.

The present invention provides novel serum-free cell culture medium and methods for cultivating MDCK cells. In particular, non-tumorigenic MDCK cells. The present invention also provides methods for producing influenza viruses (e.g., particularly cold-adapted, and / or temperature sensitive, and / or attenuated influenza viruses) that eliminate the need for a cell culture medium exchange step. The novel medium and methods are useful to grow influenza viruses, in cell culture to high titer. The present invention further provides purification methods for purifying influenza viruses with high overall recovery of live virus and result in levels of host cell DNA (HCD), host cell protein (HCP) and non-specific endonuclease (e.g., Benzonase), which are below the specifications required by regulatory agencies. The immunogenic compositions can be used to actively immunize subjects or to generate antibodies for a variety of uses, including passive immunization and diagnostic immunoassays.

The present invention provides methods for the purification of cell-associated viruses from adherent cells (e.g., MDCK or Vero cells). In particular, the present invention provides purification methods for the production of immunogenic compositions comprising a live attenuated cell-associated virus (e.g., an attenuated respiratory syncytial virus (RSV) or cold-adapted, and / or temperature sensitive influenza virus) that result in levels of host cell DNA (HCD), host cell protein (HCP) and non-specific endonuclease (e.g., Benzonase), which are below the specifications required by regulatory agencies. The immunogenic compositions can be used to actively immunize subjects or to generate antibodies for a variety of uses, including passive immunization and diagnostic immunoassays.

IgG and IgM autoantibody levels against phosphorylcholine in subjects with hypertension (diastolic pressure >95 mmHg) were determined at baseline in order to determine the importance of antibodies for the development of atherosclerosis. The results show that increases in intima-media thickness (IMT) at a follow-up four years after baseline were significantly less prevalent in subjects having high autoantibodies particularly high IgM autoantibodies, to phosphorylcholine. The presence or absence of autoantibodies, particularly IgM autoantibodies, against phosphorylcholine is thus related to an increased or decreased risk of developing ischemic cardiovascular diseases. A method to determining antibodies, particularly IgM antibodies, toward phosphorylcholine is proposed in this invention to identify subjects at risk of developing ischemic cardiovascular diseases. Animal experiments show that medium to high levels of antibodies, particularly IgM antibodies, can be detected in plasma after active immunization with a keyhole limpet hemocyanin (KLH-phosphorylcholine conjugate. A pharmaceutical composition comprising a phosphorylcholine conjugate (active immunization) or an antibody preparation, for example a monoclonal antibody, with specificity to a phosphorylcholine conjugate (passive immunization) is proposed and the use of these compositions as active or passive immunogens is the treatment or prevention of atherosclerosis.

The present invention relates to novel medical applications of down-regulation of tumour necrosis factor α (TNF-α) activity, especially novel applications of active immunization against TNF-a in order to reduce or alleviate pain. In particular, the present invention discloses novel methods for treating or ameliorating neuropathic pain.

The present invention relates to three outer membrane proteins conserved among Gram-negative bacteria, OmpA, PAL, and MLP. The invention provides vaccines and polypeptides useful for passive and active immunization against Gram-negative bacteria, as well as methods of preventing and treating Gram-negative sepsis.

The present invention relates to compositions of staphylococcal deacetylated poly-N-acetylglucosamine (dPNAG). Deacetylated poly-N-acetylglucosamine can be isolated from natural sources or synthesized de novo. The present invention also relates to the use of deacetylated poly-N-acetylglucosamine as a vaccine to induce resistance to Staphylococcus aureus, Staphylococcus epidermidis, other related coagulase-negative or coagulase-positive staphylococci, and other carrier intracellular Active immunity to infection by organisms attached to loci. The present invention also provides a method for using the antibody targeting deacetylated poly-N-acetylglucosamine, especially a method for inducing passive immunity against similar infections.

The present invention relates to novel peptide epitopes derived from the CH3 domain of IgE which are recognized by high affinity antibodies that specifically bind IgE. These novel peptides may be used for both active immunization of a subject by administering these peptides to generate high affinity antibodies in a subject, as well as for generating high affinity anti-IgE antibodies in non-human hosts that specifically bind to these regions of IgE for passive immunization of a subject.

The present invention relates to novel peptide epitopes derived from the CH3 domain of IgE which are recognized by high affinity antibodies that specifically bind IgE. These novel peptides may be used for both active immunization of a subject by administering these peptides to generate high affinity antibodies in a subject, as well as for generating high affinity anti-IgE antibodies in non-human hosts that specifically bind to these regions of IgE for passive immunization of a subject.

Autophagy is typically activated by starvation, allowing cells and organisms to mobilize their energy reserves. It is known that pharmacological modulation of autophagy represents a therapeutic potential. Here the inventors report that a protein that is released from cells in an unconventional, autophagy-dependent manner, namely, diazepam binding inhibitor (DBI), regulates autophagy. In particular, the inventors demonstrate that DBI inhibits autophagy and that the supply of recombinant DBI to mice enhanced glycolysis, enhanced lipogenesis, and inhibited fatty acid oxidation. The inventors show that neutralisation of DBI by a monoclonal antibody and an active immunization by means of an immunogenic DBI derivative eliciting autoantibodies induce autophagy and lead to metabolic changes that increase starvation-induced weight loss, reduce food intake upon refeeding, and reduce weight gain in response to hypercaloric diets. Accordingly, the present invention relates to methods and pharmaceutical compositions for modulating autophagy based on the modulation of the activity or expression of DBI.

The present invention provides methods for the purification of cell-associated viruses from adherent cells (e.g., MDCK or Vero cells). In particular, the present invention provides purification methods for the production of immunogenic compositions comprising a live attenuated cell-associated virus (e.g., an attenuated respiratory syncytial virus (RSV) or cold-adapted, and / or temperature sensitive influenza virus) that result in levels of host cell DNA (HCD), host cell protein (HCP) and non-specific endonuclease (e.g., Benzonase), which are below the specifications required by regulatory agencies. The immunogenic compositions can be used to actively immunize subjects or to generate antibodies for a variety of uses, including passive immunization and diagnostic immunoassays.