摘要:
In some embodiments the present invention provides influenza hemagglutinin ("HA") polypeptides, proteins, and protein complexes that comprise a stalk domain that is engineered to facilitate maintenance of its native trimeric conformation, even if the head domain of the HA protein is removed or disrupted. In some embodiments, the present invention provides compositions comprising such polypeptides, proteins, and protein complexes, and methods of use of such proteins and compositions, for example as vaccine immunogens.
摘要:
Compositions and methods, including vaccines and pharmaceutical compositions for inducing or enhancing an immune response are disclosed based on the discovery of useful immunological adjuvant properties in a synthetic, glucopyranosyl lipid adjuvant (GLA) that is provided in substantially homogeneous form. Chemically defined, synthetic GLA offers a consistent vaccine component from lot to lot without the fluctuations in contaminants or activity that compromise natural-product adjuvants. Also provided are vaccines and pharmaceutical compositions that include GLA and one or more of an antigen, a Toll-like receptor (TLR) agonist, a co-adjuvant and a carrier such as a pharmaceutical carrier.
摘要:
Disclosed are methods of including a systemic immune response to provide for a non-invasive genetic immunization or a therapeutic response in an animal by providing a polynucleotide encoding a protein of interest. The types of proteins and the immune response contemplated can be directed to any encoded gene of interest related to infection or other diseases. Additionally, the methods contemplate the administration of a second exogenous sequence which encodes a protein which enhances the immune response.
摘要:
According to aspects illustrated herein, there is provided an agent that transiently disrupts claudin-1 within tight junctions. The agent includes a peptide having at least 40% polar, uncharged amino acid residues and a self-assembled β-sheet secondary structure. According to aspects illustrated herein, there is also provided a transepithelial drug and vaccine formulations, as well as isolated peptides, pharmaceutical compositions, and transdermal delivery devices. Also described herein are methods of disrupting epithelial barrier and methods of administering the transepithelial formulations described herein.
摘要:
Provided herein are nucleic acid sequences that encode novel consensus amino acid sequences of HA hemagglutinin and/or influenza B hemagglutinin, as well as genetic constructs/vectors and vaccines expressing the sequences. Also provided herein are methods for generating an immune response against one or more influenza A serotypes and/or influenza B serotypes, or combinations thereof, using the vaccines that are provided.
摘要:
Novel nanoparticle fusion proteins comprising proteins or peptides fused to Dps (DNA- binding protein from starved cells) proteins are provided which bring forth distinct advantages for development of new and improved vaccines, diagnostic tests, and other biomedical products.
摘要:
A platform enabling the manufacture of thermostable vaccines by incorporating recombinantly expressed, viral envelope proteins in their native conformation into ether glycerophospholipid nanodisc structures that simulate the natural environment of the envelope proteins. The ether glycerophospholipids include ether-linked hydrophobic side chains, and are derived from or modeled after those found in thermophile bacteria, which increase thermostability, thereby significantly enhancing the vaccine's potency, enabling the production of highly multivalent vaccines incorporating multiple variants of the viral antigen, and improving stability and shelf-life.
摘要:
Engineered bacteria are provided that produce modified lipid A and a polypeptide or polysaccharide antigens. In some aspects, immunogenic compositions are provided comprising a modified a lipid A and a polypeptide or polysaccharide antigen.
摘要:
The invention provides compositions, kits and methods utilizing polypeptides having a viral alpha-helix heptad repeat domain in a stabilized a-helical structure (herein also referred to as SAH). The compositions are useful for treating and/or preventing viral infections. The invention is based, at least in part, on the result provided herein demonstrating that viral hydrocarbon stapled alpha helical peptides display excellent proteolytic, acid, and thermal stability, restore the native alpha- helical structure of the peptide, are highly effective in interfering with the viral fusogenic process, and possess superior pharmacokinetic properties compared to the corresponding unmodified peptides.
摘要:
Therapeutic or prophylactic compositions providing an active agent, such as an antigen or a vector that contains and expresses an antigen, encapsulated in or incorporated into a biodegradable polymeric particle are provided. The compositions can also provide an active agent that is not encapsulated in or incorporated into the biodegradable polymeric particle in order to provide an initial or prime delivery of the active agent. Particles or composites providing an active agent encapsulated by a first and second polymer are also provided, wherein polymers are distributed in a gradient from a core of the composite to a surface of the composite, and configured to provide a delayed release of the active agent by a period of 7 days to 6 months. Methods of producing composites are also provided. Pharmaceutical formulations providing a single dose composition are also provided, along with methods for administering the pharmaceutical compositions to a subject in need thereof a therapeutically effective amount of an active agent are provided.