The present invention relates to the field of (vector) vaccines, and especially to novel promoter sequences, expression cassettes and vectors, which are suitable to express genes of interest, especially antigen encoding sequences. The viral vectors of the present invention are useful for producing an immunogenic composition or vaccine.

The present invention relates to the field of CAdV vector vaccines, and especially to promoters suitable to express target antigens from such vector vaccines. Disclosed and claimed are recombinant canine adenoviruses, methods of making them, uses for them (including in immunological, immunogenic, vaccine or therapeutic compositions, or, as a vector for cloning, replicating or expressing DNA and methods of using the compositions and vector), expression products from them, and uses for the expression products. Additionally, disclosed and claimed are truncated EHV4 promoters, expression cassettes containing the promoters, and recombinant viruses and plasmids containing the promoters or expression cassettes.

This invention relates to viral vectors for delivery of alpha-L-iduronidase to the cornea of a subject and methods of using the same for treatment and prevention of corneal clouding and blindness in a subject due to mucopolysaccharidosis I.

The present invention provides recombinant adenoviral vectors, immunogenic compositions thereof and their use in medicine, and methods for generating recombinant adenoviral vectors. In particular, the present invention provides an adenovirus vector comprising a capsid derived from chimpanzee adenovirus AdY25, wherein said capsid encapsidates a nucleic acid molecule comprising an exogeneous nucleotide sequence of interest.

In some aspects, the disclosure relates to methods for improving titer and yield of viral vector production. In some embodiments, the disclosure relates to compositions and methods of using same, wherein the compositions comprise (i) a cis-element nucleic acid comprising a transgene: (ii) a helper nucleic acid encoding adenoviral helper genes; and (iii) a packaging nucleic acid encoding Rep and/or Cap genes: wherein the ratio of (i): (ii) and/or the ratio of (i): (iii) is between 0.01:1 and 0.1:1.

The present invention provides recombinant adenoviral vectors, immunogenic compositions thereof and their uses in medicine. In particular, the present invention provides an adenoviral vector comprising the genome of an adenovirus other than AdHu5 and AdY25, wherein the genome of the adenovirus has been modified such that the vector lacks the native E4 locus of the adenovirus and comprises heterologous E4Orf1, E4Orf2 and E4Orf3 coding regions from AdY25.