Polymers

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

C08G 69/44 (2006.01) A61K 47/48 (2006.01) C12N 15/85 (2006.01) C12N 15/87 (2006.01)

Patent

CA 2241830

A composition for delivering a biologically active polyanionic molecule comprising a linear polymer with a backbone comprising amido and tertiary amino groups arranged regularly on the said backbone and said biologically active polyanionic molecule bound to said polymer. Preferably the linear polymer comprises a poly(amidoamine). Preferably the biologically active polyanionic molecule is a nucleic acid, more preferably DNA. The compositions are useful for delivering nucleic acids to a cell, for example in cell transformation or transfection and in gene therapy.

Cette invention concerne une composition qui permet d'administrer une molécule polyanionique biologiquement active, et qui comprend un polymère linéaire sur le squelette duquel des groupes amido et amino tertiaires sont disposés de manière régulière, la molécule polyanionique biologiquement active étant liée au polymère. Le polymère linéaire comprend de préférence une poly(amidoamine), tandis que la molécule polyanionique biologiquement active consiste de préférence en un acide nucléique, et de préférence encore, en un ADN. Ces compositions sont utiles dans l'administration d'acides nucléiques à une cellule, par exemple dans la transformation ou la transfection de cellules, ainsi que lors d'une thérapie génique.

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