Modified adenoviral fiber with ablated binding to cellular...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/86 (2006.01) A61K 48/00 (2006.01) C07K 14/075 (2006.01) C12N 7/04 (2006.01) C12N 15/861 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2491805

The present invention concerns a modified adenoviral fiber containing at least one mutation affecting one or more amino acid residue(s) of said adenoviral fiber interacting with at least one glycosaminoglycan and/or sialic acid- containing cellular receptor, as well as a trimer of such a modified adenoviral fiber. The present invention also relates to a DNA fragment, an expression vector encoding said modified adenoviral fiber. The present invention also concerns an adenoviral particle lacking a wild-type fiber and comprising the trimer of modified adenoviral fibers as well as a process for producing such an adenoviral particle. Theto present invention also provides a composition comprising such an adenoviral particle and the therapeutic use thereof.

La présente invention concerne une fibre d'adénovirus modifiée contenant au moins une mutation affectant un ou plusieurs résidus acides aminés de cette fibre d'adénovirus interagissant avec au moins un récepteur cellulaire contenant du glycosaminoglycane et/ou de l'acide sialique, ainsi qu'un trimère d'une telle fibre d'adénovirus modifiée. Cette invention porte également sur un fragment d'ADN, sur un vecteur d'expression codant cette fibre d'adénovirus modifiée et sur une particule d'adénovirus dépourvue d'une fibre de type sauvage et comprenant le trimère de fibres d'adénovirus modifiées, ainsi que sur un procédé de production de cette particule d'adénovirus. Cette invention concerne également une composition comprenant cette particule d'adénovirus et son utilisation thérapeutique.

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