The present application provided defective bovine adenovirus (BAV) vectors that lack pV function. Cell lines and methods of preparing such vectors are provided. In addition, the invention provides methods of treating a disease or disorder with a defective BAV lacking pV function as well as vaccine comprising a defective BAV lacking pV function.

This invention relates to Virus-Like Particles (VLPs) derived from Enterovirus and vaccines comprising such VLPs which elicit immune responses and/or protective neutralizing antibody responses directed against an Enterovirus. The instant invention provides expression cassettes and methods for making Enterovirus CV-A16 VLPs and compositions enriched in CV-A16 VLPs which exhibit conformational epitopes which elicit immune responses and/or neutralizing antibody responses which may be used in vaccines directed against Enterovirus CV-A16.

The present invention relates to new adenoviral coat protein based delivery vehicles. They are based on a modified penton base protomers that assemble into VLPs. Exposed areas of the penton base proteins can be modified to allow the VLP to specifically bind to any target and/or to comprise any desired peptide epitope. Additional cargo, for example drugs, proteins, or nucleic acids, can reversibly or irreversibly attached to the VLP via engineered fibre protein fragments. The present invention relates to such engineered penton base protomers, engineered proteins comprising an adenovirus fibre protein N-terminal fragment specifically binding to an adenovirus fibre protein binding cleft of a penton base protomer, VLPs comprising the engineered penton base protomers and optionally engineered proteins comprising an adenovirus fibre protein N-terminal fragment specifically binding to an adenovirus fibre protein binding cleft of a penton base protomer, nucleic encoding the engineered proteins, the VLPs as well as methods of producing the proteins and VLPs.

The present invention relates to a recombinant adenoviral vector for generating immunity against enterovirus infection. In one embodiment, the recombinant adenoviral vector of the invention comprises an expression cassette encoding a PI protein and a 3 CD protease of an enterovirus. In another embodiment, the recombinant adenoviral vector of the invention comprises an expression cassette encoding a 3C protease or a 3CD protease of an enterovirus. The present invention also relates to a vaccine composition comprising the recombinant adenoviral vector as described. A method of inducing an immune response in a subject against enterovirus infection using the recombinant adenoviral vector and the vaccine composition is provided. Further provided is a method for producing virus like particles of an enterovirus by expressing the adenoviral vector as described herein in mammalian cells.

The present application relates to adenovirus virus-like particles (AdVLPs) and related compositions, plasmids, and methods. The AdVLP can include a recombinant capsid that comprises major capsid adenovirus (AdV) proteins such as a hexon protein, a penton protein, and a fiber protein, and minor capsid/cement AdV proteins, such as a Illa protein, a VI protein, a VIII protein, and a IX protein. The minor capsid/cement AdV proteins structurally support the major capsid AdV proteins. The recombinant capsid of the AdVLP can further include a chaperone AdV protein, and an accessory scaffold AdV protein.