Recombinant viruses incorporating a protease cleavable protein

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/86 (2006.01) A61K 31/70 (2006.01) A61K 47/48 (2006.01) A61K 48/00 (2006.01) C07K 14/15 (2006.01) C07K 14/485 (2006.01) C07K 14/525 (2006.01) C07K 14/705 (2006.01) C12N 7/00 (2006.01) C12N 7/01 (2006.01) C12N 15/33 (2006.01) C12N 15/62 (2006.01) C12N 15/867 (2006.01) C12Q 1/37 (2006.01) C12Q 1/68 (2006.01) C12Q 1/70 (2006.01)

Patent

CA 2232669

Disclosed is a recombinant viral particle capable of infecting a eukaryotic cell, the viral particle comprising: a substantially intact viral glycoprotein fused, via an intervening linker region, to a heterologous polypeptide displayed on the surface of the particle, which heterologous polypeptide modulates the ability of the viral particle to infect one or more eukaryotic cell types and is cleavable from the viral glycoprotein by a protease acting selectively on a specific protease cleavage site present in the linker region, such that cleavage of the heterologous polypeptide from the viral glycoprotein allows the glycoprotein to interact normally with its cognate receptor on the surface of a target cell.

On décrit une particule virale recombinée pouvant infecter une cellule eucaryote et comprenant: une glycoprotéine virale, sensiblement intacte, fusionnée, via une région intermédiaire de liaison, à un polypeptide hétérologue présenté sur la surface de la particule, lequel polypeptide module la capacité de la particule virale à infecter un ou plusieurs types de cellules eucaryotes et peut être clivé à partir de la glycoprotéine virale par une protéase agissant de manière sélective sur le site de clivage spécifique des protéases, présent dans la région de liaison, de telle manière que le clivage du polypeptide hétérologue à partir de la glycoprotéine virale permette à cette dernière d'interagir normalement avec son récepteur correspondant sur la surface d'une cellule cible.

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