Recombinant aav packaging systems

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/864 (2006.01) C12N 5/10 (2006.01) C12N 15/861 (2006.01) C12N 15/867 (2006.01)

Patent

CA 2397532

Methods and compositions are provided for producing recombinant AAV vector particles; comprising the general steps of (a) introducing into a host cell (i) pfloxAAV a recombinant AAV vector in which two loxP recombination sites are inserted flanking the rep/cap sequence, (ii) a recombinant viral vector encoding plasmid, and (iii) a plasmid encoding herpesvirus, cytomegalovirus, or adenoviral functions, or a herpesvirus, cytomegalovirus, or, adenovirus itself, in order to produce flox AAV particles and recombinant AAV particles; and (b) introducing into a second host cell (i) the recombinant AAV particles of (a), (ii) a vector which directs the expression of Cre, and (iii) a vector which directs the expression of herpesvirus, CMV, or adenovirus helper functions, such that said recombinant AAV vector particles are produced.

L'invention concerne des méthodes et des compositions permettant de produire des particules de vecteur de AAV recombinant. Ces méthodes consistent : (a) à introduire dans une cellule hôte (i) un pfloxAAV, (ii) un vecteur viral recombinant codant pour un plasmide, et (iii) un plasmide codant pour le virus de l'herpès, le cytomégalovirus ou des fonctions adénovirales, ou pour le virus de l'herpès, le cytomégalovirus ou l'adénovirus lui-même, afin de produire des particules de flox AAV et des particules de AAV recombinant; et (b) à introduire dans une seconde cellule hôte (i) les particules de AAV recombinant de (a), (ii) un vecteur qui dirige l'expression de Cre, et (iii) un vecteur qui dirige l'expression du virus de l'herpès, du cytomégalovirus ou des fonctions auxiliaires adénovirales, ce qui permet de produire lesdites particules de vecteur de AAV recombinant.

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