摘要:
Disclosed herein are nanoparticles suitable for use in vaccines. The nanoparticles present antigens from pathogens surrounded to and associated with a detergent core resulting in enhanced stability and good immunogenicity. Dosages, formulations, and methods for preparing the vaccines and nanoparticles are also disclosed.
摘要:
Provided is a polypeptide having no more than 100 amino acids, which polypeptide comprises one or more sequences having at least 60% homology with any of SEQ ID 1-6, or comprises two or more epitopes having 7 amino acids or more, each epitope having at least 60% homology with a sub-sequence of any of SEQ ID 1-6 that has the same length as the epitope: SEQ ID 1 DLEALMEWLKTRPILSPLTKGILGFVFTLTVP SEQ ID 2 LLYCLMVMYLNPGNYSMQVKLGTLCALCEKQASHS SEQ ID 3 DLIFLARSALILRGSVAHKSC SEQ ID 4 PGIADIEDLTLLARSMVVVRP SEQ ID 5 LLIDGTASLSPGMMMGMFNMLSTVLGVSILNLGQ SEQ ID 6 IIGILHLILWILDRLFFKCIYRLF wherein, the polypeptide is immunogenic in a vertebrate expressing a major histocompatibility complex (MHC) allele, and wherein the polypeptide is not a complete influenza virus protein.
摘要翻译:提供的多肽具有不超过100个氨基酸,该多肽包含与SEQ ID 1-6中任一个具有至少60%同源性的一个或多个序列,或包含具有7个或更多个氨基酸的两个或多个表位,每个表位具有 与SEQ ID 1-6中任一个具有与表位相同长度的亚序列至少60%的同源性:其中,所述多肽在表达主要组织相容性复合体(MHC)等位基因的脊椎动物中是免疫原性的,并且其中所述多肽 不是一种完整的流感病毒蛋白。
摘要:
The present invention relates to enveloped RNA viruses. The invention in particular relates to the generation of superior antigens for mounting an immune response by first identifying then mutating the immunosuppressive domains in fusion proteins of enveloped RNA viruses resulting in decreased immunosuppressive properties of viral envelope proteins from the viruses.
摘要:
Compositions that include at least a portion of a flagellin and an antigen can be employed in methods that stimulate an immune response in a subject, in particular, a protective immune response in a subject. Compositions can be associated with particles and employed in the methods in relatively low doses to provide protective immunity to infection.
摘要:
The present invention relates, to novel methods and substrates for the propagation of viruses. The invention relates to IFN-deficient substrates and methods for propagating viruses in these unconventional substrates. In particular, the invention relates to methods of propagating viruses in immature embryonated eggs, preferably six- to nine-day-old chicken eggs. The methods of the invention are particularly attractive for growing viruses suitable for use in vaccine and pharmaceutical formulations.
摘要:
A method of producing a virus like particle (VLP) in a plant comprising modified hemagglutinin is provided. The method comprises introducing a nucleic acid comprising a regulatory region active in the plant and operatively linked to a nucleotide sequence encoding a modified influenza hemagglutinin (HA) protein into the plant, or portion of the plant, the modified HA protein comprises a modified proteolytic loop. Followed by incubating the plant or portion of the plant under conditions that permit the expression of the nucleic acids, thereby producing the VLP. The modified proteolytic loop may comprise one or more protease cleavage sites exhibiting reduced or abolished cleavage by a protease. The nucleotide sequence encoding the HA may be selected from the group consisting of B HA, C, H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, and H16. Also described is a virus like particle (VLP) produced by the method, and plants expressing the VLP. The virus like particle (VLP) may comprise plant-specific N-glycans, or modified N-glycans.
摘要:
The present invention provides methods of differentiating the infectivity and lethality of isolates of influenza virus and provides compounds for diagnosing, preventing, and treating outbreaks of influenza virus including compounds for diagnosing, preventing, and treating across different strains of influenza virus.
摘要:
Methods of making a protein that stimulates a protective immune response in a subject include separating a portion of a protein from a naturally occurring influenza viral hemagglutinin to form a protein portion.
摘要:
Polyvalent influenza virus-like particles (VLPs) comprising influenza antigenic polypeptides are described. Also described are compositions comprising these polyvalent VLPs as well as methods of making and using these VLPs.
摘要:
The present invention relates to novel virus-like particles (VLPs) comprising a matrix protein derived from a first plant enveloped virus and a surface polypeptide. The surface polypeptide comprises (a) a surface exposed portion derived from a target polypeptide (b) a transmembrane domain, and (c) a cytosolic tail derived from a transmembrane (e.g., glycoprotein) of a second plant enveloped virus. The target polypeptide may be antigenic or therapeutic. The first and the second plant enveloped viruses may be the same. Either plant enveloped virus may be a plant rhabdovirus. Also provided are methods of making and using the VLPs.