Adenovirus serotype 24 vectors, nucleic acids and virus...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 7/00 (2006.01)

Patent

CA 2518926

Adenoviral serotypes differ in their natural tropism. The various serotypes of adenovirus have been found to differ in at least their capsid proteins (e.g., penton-base and hexon proteins), proteins responsible for cell binding (e.g., fiber proteins), and proteins involved in adenovirus replication. This difference in tropism and capsid proteins among serotypes has led to the many research efforts aimed at redirecting the adenovirus tropism by modification of the capsid proteins. The present invention bypasses such requirement for capsid protein modification as it presents a recombinant, replication- defective adenovirus of serotype 24, a rare adenoviral serotype, and methods for generating the alternative, recombinant adenovirus. Additionally, means of employing the recombinant adenovirus for the delivery and expression of exogenous genes are provided.

Des sérotypes d'adénovirus sont différents dans leur tropisme naturel. On a observé que les divers sérotypes d'adénovirus diffèrent dans leurs protéines capsidiques (par exemple, des protéines base du penton et de l'hexon), des protéines responsables pour la liaison cellulaire (par exemple, des protéines fibreuses), et des protéines impliquées dans la réplication adénovirale. Cette différence en tropisme et en protéines capsidiques parmi le sérotypes ont fait l'objet de plusieurs tentatives de recherche visant à la réorientation du tropisme d'adénovirus par la modification des protéines capsidiques. La présente invention contourne une telle nécessité de modification de protéines capsidiques étant donnée qu'elle propose un adénovirus de sérotype 24 recombinant à réplication défectueuse, un sérotype d'adénovirus rare, et des procédés pour la génération de l'adénovirus recombinant alternatif. En outre, l'invention a trait à des moyens d'utilisation de l'adénovirus recombinant pour l'implantation et l'expression de gènes exogènes.

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