Adenovirus serotype 26 vectors, nucleic acid and viruses...

C - Chemistry – Metallurgy – 12 – Q

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C12Q 1/70 (2006.01)

Patent

CA 2597404

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 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 26, a rare adenoviral serotype, and methods for generating the alternative, recombinant adenovirus. Additionally, means of employing the recombinant adenovirus for delivery and expression of heterologous genes are provided.

Les sérotypes adénoviraux diffèrent par leur tropisme naturel. Les sérotypes variés d'adénovirus diffèrent au moins au niveau de leurs protéines de capside (par exemple, les protéines à base de penton et d'hexon), des protéines responsables des liaisons cellulaires (par exemple, les protéines fibreuses), et des protéines impliquées dans la réplication de l'adénovirus. Cette différence de tropisme et de protéines de capside, parmi les sérotypes, a amené les recherches à être redirigées vers le tropisme de l'adénovirus par la modification des protéines de capside. L'invention passe outre l'exigence de la modification des protéines de capside, elle présente un adénovirus recombinant défaillant au niveau de la réplication, de sérotype 26, sérotype adénoviral rare. L'invention concerne des méthodes pour générer ce nouvel adénovirus recombinant. En outre, l'invention concerne des moyens d'utilisation de cet adénovirus recombinant pour distribuer et pour exprimer des gènes hétérologues.

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