Partially deleted adenoviral vectors

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/86 (2006.01) C12N 1/15 (2006.01) C12N 1/19 (2006.01) C12N 1/21 (2006.01) C12N 5/10 (2006.01) C12N 7/00 (2006.01) C12N 15/09 (2006.01)

Patent

CA 2328087

The invention is directed to novel partially deleted adenoviral vectors (DeAd) in which the majority of adenoviral early genes required for replication are deleted from the vector and placed within the chromosome of a producer cell line under conditional promoter control. The partially deleted adenoviral (DeAd) vectors of the invention can accommodate inserts, such as transgenes, of up to 12-15 kb in size. The invention is further directed to DeAd vector producer cell lines that contain the adenoviral early genes necessary for replication under conditional promoter control that allow for large scale production of vectors. The invention is also directed to methods for the production of DeAd vectors in such cell lines and to the use of such vectors to deliver transgenes to target cells.

L'invention concerne des nouveaux vecteurs adénoviraux, à délétion partielle, dans lesquels la plupart des gènes précoces adénoviraux nécessaires à une réplication ont été supprimés à partir du vecteur et placés dans le chromosome d'une lignée cellulaire productrice, sous la commande d'un promoteur conditionnel. Les vecteurs adénoviraux à délétion partielle de l'invention peuvent accueillir des segments d'insertion, tels que des transgènes, dont la dimension peut aller jusqu'à 12-15 kb. L'invention concerne en outre des lignées cellulaires productrices de ces vecteurs adénoviraux, lesquelles contiennent les gènes précoces adénoviraux nécessaires à une réplication sous la commande d'un promoteur conditionnel et permettent une production de vecteurs, à grande échelle. L'invention concerne enfin des procédés de production de vecteurs adénoviraux, à délétion partielle, dans de telles lignées cellulaires, ainsi que l'utilisation de ces vecteurs dans l'apport de transgènes dans des cellules cibles.

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