The invention discloses a Graisseria parasuis three-component subunit vaccine and a preparation method thereof, and belongs to the technical field of biology. The vaccine comprises three kinds of antigen proteins of the Gleisseria parasuis in an immunizing dose and a pharmaceutically acceptable adjuvant, and the amino acid sequences of the three kinds of antigen proteins are respectively shown as SEQ ID NO.1, SEQ ID NO.2 and SEQ ID NO.3. The invention further discloses a preparation method of the vaccine. The three-component subunit vaccine provided by the invention has cross protection force on infection of type-4 and type-5 Graisseria parasuis, has an excellent immune protection effect, and is expected to play a better role in prevention and control of infectious diseases caused by the Graisseria parasuis.
The invention provides a recombinant Marek's diseasevirus co-expressing a Newcastle diseasevirus F gene and an infectious bursal diseasevirus supervirulent strain VP2 gene and application thereof, and belongs to the field of genetic engineering vaccines. According to the invention, by using a recombinant cloning technology, an expression framework containing a Newcastle disease virus gene VII type strain F gene and an infectious bursal disease virus super virulent strain VP2 gene is inserted into a spacer region between Marek's disease virus genome UL45 and UL46 genes; according to the method, a recombinant cosmid is constructed and obtained, wherein a Newcastle disease virus F gene and an infectious bursal disease virus super virulent strain VP2 gene expression framework are inserted between Marek's disease virus genome UL45 and UL46 genes, and a recombinant virus C20101 strain co-expressing the Newcastle disease virus F gene and the infectious bursal disease virus super virulent strain VP2 gene is rescued and obtained by the recombinant cosmid. The vaccine prepared from the recombinant Marek's disease virus strain provided by the invention can prevent Newcastle disease, chicken infectious bursal disease and Marek's disease at the same time, and has a good market application prospect.
A hybrid vaccine composition that prevents infection or reinfection by both influenza and coronaviruses, comprising at least a portion of a Coronavirus spike(S) protein and at least a portion of at least one influenza hemagglutinin (HA) protein. The portion of the coronavirus spike(S) protein is highly conserved among human and animal coronaviruses. The vaccine composition may comprise a Coronavirus protein comprising either: a structural protein, e.g., a Spike protein, a Nucleocapsid protein, or a combination thereof, or a non-structural protein, e.g., NSP2, NSP3, NSP14, or combination thereof; and at least a portion of at least one influenza hemagglutinin (HA) protein.
The invention relates to a fusion protein, an immunogenic composition and a recombinant degenerate vaccine for preventing and treating infection of various pathogenic streptococci, as well as a molecular architecture design, application and the like. According to the invention, three immune antigens, namely an elongation factor Tu (Tuf), a molecular chaperone DnaK and an elongation factor G (fusA), are screened, and it is proved that fusion protein molecules of the three antigens can significantly inhibit tissue lesions caused by infection of different serotypes and different types of streptococci, have good immunogenicity, play roles in immune protection and effective prevention and treatment, and have good application prospects. The bacillus subtilis has the characteristics of broad-spectrum and high-efficiency prevention of streptococcus bacterial infection, and has a wide application prospect.
The invention provides an H1N1 broad-spectrum mRNA (messenger ribonucleic acid) vaccine taking HA (hemagglutinin) and NA (neuraminidase) protein tandem as a target and a preparation method of the H1N1 broad-spectrum mRNA vaccine, and relates to the technical field of vaccine preparation, the amino acid sequence of the mRNA vaccine is shown as SEQ ID NO.1, and the nucleotide sequence of the mRNA vaccine is shown as SEQ ID NO.2, namely, the mRNA vaccine is obtained by connecting GGGSGGSGGGSGGGGS with conserved amino acid sequences of hemagglutinin HA and neuraminidase NA. The defects in the prior art are overcome, and the broad spectrum and the protection effect of the vaccine are improved, so that the vaccine can better cope with the immune escape of the latest variant in the future.
An immunogenic fusion protein used for active immunization or a bivalent vaccine in the treatment of atopic dermatitis (AD) in a subject and a method thereof. The immunogenic fusion protein includes a IL31 polypeptide and at least one substance P polypeptide (SP). The invention is particularly useful for treating and / or preventing AD and symptoms related to AD including pruritus in mammals.
The present application provides an RNA encoding a varicella-zoster (VZV) glycoprotein E (gE) or a variant thereof, the RNA comprising a nucleotide sequence having at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, or at least 99% identity with the nucleotide sequence represented by any one of SEQ ID NO: 11-18. The eight mRNAs provided by the invention can translate in cells, the expression level of the generated VZV gE protein is high, and the mRNAs can induce a mouse to generate a high-titer gE specific IgGantibody in a manner of intramuscular injection into the body of the mouse through a preparation formed by encapsulating the lipidosome nanoparticles.
Disclosed herein are alphavirus vectors that include neoantigen-encoding nucleic acid sequences derived from a tumor of a subject. Also disclosed are nucleotides, cells, and methods associated with the vectors including their use as vaccines.
The present invention relates generally to nucleic acids comprising a plurality of polynucleotide sequences wherein each polynucleotide sequence of the plurality of polynucleotide sequences comprises a target sequence, a linker sequence and a self-assembly sequence, or a linker sequence, a target sequence, a linker sequence and a self-assembly sequence, or a combination thereof, wherein each polynucleotide sequence of the plurality of polynucleotide sequences is linked to a neighboring polynucleotide sequence of the plurality of polynucleotide sequences by a cleavage sequence, and wherein the nucleic acid further comprises a signal sequence upstream of one or more polynucleotide sequences of the plurality of polynucleotide sequences.
According to some embodiments, a method of providing treatment of a host comprises binding a carrier to cell structures of cells of the host to reduce a likelihood of an agent binding to said cell structures to at least partially inhibits the agent from binding to said cell structures, wherein the carrier comprises a core and a surface functionalized on the core, wherein the functionalized surface bind to target areas of cell structures of the host's cells, and wherein the carrier is to be used as targeted treatment for one or more disease, infections or allergic reactions caused by a disease-causing agent or source.