IBV VACCINE WITH HETEROLOGOUS DMV/1639 SPIKE PROTEIN

    公开(公告)号:US20250064920A1

    公开(公告)日:2025-02-27

    申请号:US18790098

    申请日:2024-07-31

    Abstract: The present invention relates i.a. to an IBV (infectious bronchitis virus) encoding for a heterologous DMV S (spike) protein or fragment thereof. Further, the present invention relates to an immunogenic composition comprising said IBV encoding for a heterologous DMV S (spike) protein or fragment thereof. Furthermore, the present invention relates to methods for immunizing a subject comprising administering to such subject the immunogenic composition of the present invention. Moreover, the present invention relates to methods of treating or preventing clinical signs caused by IBV in a subject of need, the method comprising administering to the subject a therapeutically effective amount of an immunogenic composition according to the present invention.

    MODIFIED PARAMYXOVIRIDAE FUSION GLYCOPROTEINS

    公开(公告)号:US20250059239A1

    公开(公告)日:2025-02-20

    申请号:US18720534

    申请日:2022-12-16

    Abstract: Provided herein are lipid particles, such as lentiviral particles, that incorporate or are pseudotyped with a variant Nipah Virus F (NiV-F) envelope glycoprotein, and in some aspects also an attachment glycoprotein (G) protein such as a NiV-G protein or a biologically active portion or variant thereof. Also provided are polynucleotides encoding the variant NiV-F and producer cells for preparation of the lipid particles, such as lentiviral particles, containing the variant NiV-F proteins, as well as methods for preparing and using the lipid particles, such as lentiviral particles.

    Replication-defective arenavirus vectors

    公开(公告)号:US12227755B2

    公开(公告)日:2025-02-18

    申请号:US17846817

    申请日:2022-06-22

    Abstract: The invention relates to an infectious arenavirus particle that is engineered to contain a genome with the ability to amplify and express its genetic information in infected cells but unable to produce further infectious progeny particles in normal, not genetically engineered cells. One or more of the four arenavirus open reading frames glycoprotein (GP), nucleoprotein (NP), matrix protein Z and RNA-dependent RNA polymerase L are removed or mutated to prevent replication in normal cells but still allowing gene expression in arenavirus vector-infected cells, and foreign genes coding for an antigen or other protein of interest or nucleic acids modulating host gene expression are expressed under control of the arenavirus promoters, internal ribosome entry sites or under control of regulatory elements that can be read by the viral RNA-dependent RNA polymerase, cellular RNA polymerase I, RNA polymerase II or RNA polymerase III. The modified arenaviruses are useful as vaccines and therapeutic agents for a variety of diseases.

    Foot-and-mouth disease virus-like particle antigen, and vaccine composition, preparation method, and application thereof

    公开(公告)号:US12226472B2

    公开(公告)日:2025-02-18

    申请号:US17421541

    申请日:2019-01-15

    Abstract: A type O foot-and-mouth disease virus-like particle antigen is provided, wherein the type O foot-and-mouth disease virus-like particle antigen is type O CATHAY topotype foot-and-mouth disease virus-like particle antigen, and the type O CATHAY topotype foot-and-mouth disease virus-like particle antigen is assembled by VP0, VP3 and VP1 antigen proteins of type O CATHAY topotype foot-and-mouth disease virus. The type O foot-and-mouth disease virus-like particle antigen has good immunogenicity. The prepared vaccine can produce complete protection against the O-type foot-and-mouth disease virus on the 14th day after immunization. The antibody titer produced is higher than that of the commercial inactivated vaccine, and the duration of immune protection can be maintained for at least 133 days. The prepared vaccine composition, preparation method and use thereof are also provided.

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