Lipophilic derivatives of double-stranded ribonucleic acid

Details Lipophilic derivatives of double-stranded ribonucleic acid Lipophilic derivatives of double-stranded ribonucleic acid

C - Chemistry, Metallurgy

12

N

C12N 15/11 (2006.01) A61K 31/713 (2006.01) A61P 31/14 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2513809

The present invention relates to a double-stranded ribonucleic acid (dsRNA) having improved efficiency of inhibition of gene expression, methods of making the dsRNA, and pharmaceutical compositions comprising the dsRNA. The dsRNA comprises an RNA strand (complementary RNA strand) having a region which is complementary to an RNA transcript of at least a part of a target gene, and at least one covalently linked lipophilic group. The dsRNA are useful for inhibiting the expression of a target gene, as well as for treating diseases caused by expression of the target gene. The invention also relates to methods for inhibiting the expression of a target gene, as well as methods for treating diseases caused by the expression of the gene.

La présente invention se rapporte à l'acide ribonucléique à double brin (ARNdb) qui a une meilleure efficacité d'inhibition de l'expression génique, à des procédés de fabrication de l'ARNdb, et à des compositions pharmaceutiques comprenant l'ARNdb. L'ARNdb comprend un brin d'ARN (un brin d'ARN complémentaire) possédant une région qui est complémentaire au transcrit d'ARN d'au moins une partie du gène cible, et au moins un groupe lipophile lié par covalence. Les ARNdb sont utiles pour inhiber l'expression d'un gène cible ainsi que pour traiter les maladies causées par l'expression du gène cible. L'invention se rapporte à des procédés pour inhiber l'expression d'un gène cible ainsi que des procédés pour traiter les maladies provoquées par l'expression du gène.

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