The present invention generally relates to the field of herpesviruses and herpesvirus proteins that can be used for the production of antibodies or therapeutic agents, such as vaccines. More specifically, the present invention relates to a modified herpesvirus glycoprotein B that comprises one or more mutations at defined positions in the primary structure of the protein which retain a stable prefusion conformation which is highly advantageous for the production of antibodies or therapeutic agents, such as vaccines. The invention further relates to nucleic acid molecules which encode such a modified herpesvirus glycoprotein B. The invention further provides methods for producing antibodies or therapeutic agents, such as vaccines, which make use of the modified herpesvirus glycoprotein B or a nucleic acid molecule encoding it. Kits comprising the modified herpesvirus glycoprotein B are provided as well. Finally, the invention also relates to the use of the modified herpesvirus glycoprotein B or a nucleic acid molecule encoding same for drug screening.

The present invention describes a recombinant herpesvirus of turkeys (rHVT) that can be used as a vector vaccine for poultry against infection and disease from multiple poultry pathogens. Specifically the rHVT expresses an infectious bursal disease virus (IBDV) viral protein 2 (VP2) gene and a Newcastle disease virus (NDV) fusion (F) protein gene from a first and a second expression cassette inserted in the unique small (Us) region, and expresses an avian influenza vims (AIV) haemagglutinin (HA) gene from a third expression cassette inserted in the unique long (UL) region of the genome of said rHVT either between the UL40 and UL41 genes, or between the UL44 and UL45 genes. This rHVT can be used to vaccinate poultry against MDV, IBDV, NDV and AIV.

The present invention relates to a nucleic acid molecule encoding a modified porcine epidemic diarrhea virus (PEDV) spike (S) protein and the PEDV (S) protein thereof. Further, the present invention relates to immunogenic compositions comprising said modified PEDV spike protein and methods for immunizing a subject comprising the administration of said immunogenic composition to a subject.

The invention relates to recombinant viral vectors for the insertion and expression of foreign genes for use in safe immunizations to protect against a variety of pathogens. The invention also relates to multivalent compositions or vaccine comprising one or more recombinant viral vectors for protection against a variety of pathogens. The present invention relates to methods of making an using said recombinant viral vectors.

The present disclosure provides a recombinant herpesvirus of turkeys (HVT) and a preparation method and use thereof. The present disclosure specifically provides a recombinant HVT, where an exogenous gene is inserted in a spacer region between an HVT005 region and an HVT006 region of an HVT genome; and the exogenous gene is selected from a gene derived from the group consisting of a Newcastle disease virus (NDV), an avian influenza virus (AIV), and an infectious bursal disease virus (IBDV); the spacer region between an HVT005 region and an HVT006 region of an HVT genome is located between 8,867 nt and 9,319 nt of the HVT genome, and has a nucleotide sequence set forth in SEQ ID NO: 1.

The present invention provides recombinant Gallid herpesvirus 3 (MDV-2) vectors that contain and express antigens of avian pathogens, recombinant Gallid herpesvirus 3 (MDV-2) vectors that contain a mutated gC gene, compositions comprising the recombinant Gallid herpesvirus 3 (MDV-2) vectors, polyvalent vaccines comprising the recombinant Gallid herpesvirus 3 (MDV-2) vectors and one or more wild type viruses or recombinant vectors. The present invention further provides methods of vaccination against a variety of avian pathogens and method of producing the recombinant Gallid herpesvirus 3 (MDV-2) vectors.

The addition of an oligodeoxynucleotide that is an avian TLR21 agonist, to an avian Herpesvirus vector vaccine, provides an acceleration of the immune response against the antigen that is expressed and delivered by the Herpesvirus vector.

The present disclosure provides recombinant nucleic acids comprising one or more polynucleotides encoding a laminin polypeptide (e.g., a human laminin polypeptide) and/or a filaggrin polypeptide (e g , a human filaggrin polypeptide); viruses comprising the recombinant nucleic acids; compositions and formulations comprising the recombinant nucleic acids and/or viruses; methods of their use (e.g., for the treatment of Junctional Epidermolysis Bullosa); and articles of manufacture or kits thereof.

Provided herein is a fusion protein comprising, or alternatively consisting essentially of, or yet further consisting of an optional signal peptide, a serum albumin, an optional linker, a Phosphatase and Tensin Homolog (PTEN), and an optional purification or detectable marker in any order. Relating polynucleotides, vectors, host cells, pharmaceutical compositions and kits are also disclosed. Further provided are methods for delivering a fusion protein to a subject, treating a cancer or tumor, and/or producing the fusion protein.

Provided herein is a fusion protein comprising, or alternatively consisting essentially of, or yet further consisting of an optional signal peptide, a serum albumin, an optional linker, a Phosphatase and Tensin Homolog (PTEN), and an optional purification or detectable marker in any order. Relating polynucleotides, vectors, host cells, pharmaceutical compositions and kits are also disclosed. Further provided are methods for delivering a fusion protein to a subject, treating a cancer or tumor, and/or producing the fusion protein.