Disclosed herein are chimpanzee adenoviral 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 in particular relates to a method of producing an immunogenic composition exhibiting reduced virucidal activity, as well as to the immunogenic composition and uses thereof, wherein the method in particular comprises the steps of: (a) providing a mixture with a first liquid and a recombinant protein, (b) concentrating the recombinant protein in the mixture by removing a portion of the first liquid from the mixture, and (c) processing the solution resulting from step (b) by continuous diafiltration.

A method of easily producing an immunogenic pupa for oral administration and a pupa for oral administration produced by the method are provided. The method is a method of producing a pupa for oral administration, including a step of infecting a larva or pupa of an insect capable of being baculovirus-infected with a recombinant baculovirus having DNA encoding an antigen protein introduced therein and freeze-drying a pupa having pupated from the infected larva or the infected pupa.

Immunogenic compositions for inducing a universal immune response to influenza, and particularly influenza A, by eliciting anti-neuraminidase antibodies which provide protection against heterologous influenza infection. Compositions comprising recombinant expression vectors expressing neuraminidase in cultured cells dispersed in a pharmaceutically-acceptable carrier comprising cell culture media, and optional adjuvant. Methods of inducing immune responses against influenza, and particularly influenza A, by eliciting anti-neuraminidase antibodies in a host animal susceptible to infection.

The present invention in particular relates to a method of producing an immunogenic composition exhibiting reduced virucidal activity, as well as to the immunogenic composition and uses thereof, wherein the method in particular comprises the steps of: (a) providing a mixture with a first liquid and a recombinant protein, (b) concentrating the recombinant protein in the mixture by removing a portion of the first liquid from the mixture, and (c) processing the solution resulting from step (b) by continuous diafiltration.

The present invention may be included in the field of biotechnology and it covers the improved production of recombinant proteins in insect cells or insect larvae as biofactories by a novel expression cassette. This expression cassette comprises nucleic acid sequences such as promoters, homologous regions (hr) as enhancers, and sequences encoding transcriptional regulators, for example, the baculovirus Ac-ie-01 cDNA, or any combination thereof, which are able to increase the quality and production efficiency of the recombinant proteins. Moreover, the present invention is also directed to the vectors themselves comprising the above mentioned nucleic acid sequences of the invention, cells or insects infected, transformed or transfected with those sequences or vectors, and methods for producing the recombinant proteins by using the aforesaid sequences, vectors, cells or insects.

Disclosed herein are chimpanzee adenoviral 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.

Compositions and methods to induce cytolytic T lymphocytes (CD8+) response, that is, MHC class I restricted T cell responses, to pathogenic and common cold coronaviruses, including a delivery platform for antigens consisting of a polyionic papillomavirus virus-like particle (VLP), with contiguous, negatively charged amino acids flanked by a cysteine residue inserted in the HI loop of the papillomavirus L1 protein. Antigens to be paired with the VLP include fusion peptide/proteins derived from a pathogenic coronavirus, and from the genetically most closely related human coronaviruses that commonly circulate in human populations, with N-terminal or C-terminal amino acids consisting of contiguous, positively charged amino acids preceded and/or followed by a cysteine residue and a C-terminal proteolytic processing sequence (AAYY) to enhance presentation of MHC class I epitopes.

Embodiments of the present invention provide for novel compositions and methods for making and using thermostable enveloped viruses. Certain embodiments relate to formulating enveloped viruses alone in a aqueous formulation, or in combination with spray-drying, lyophilization or other drying techniques to reduce degradation and/or preserve activity or titer of the enveloped virus reducing titer loss, prolonging storage stability, delivery, and use. In some embodiments, formulations disclosed herein create a stabilized envelope virus formulation for protection from high temperature during drying processes for an enhanced and rapid drying process for storage, transport and later use of the stabilized envelope viruses.