Modified small interfering rna molecules and methods of use

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/11 (2006.01) A61K 31/711 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2493949

The present invention provides double-stranded RNA molecules that mediate RNA interference in target cells, preferably hepatic cells. The invention also provides double-stranded RNA molecules that are modified to be resistant to nuclease degradation, which inactivates a virus, and more specifically, hepatitis C virus (HCV). The invention also provides a method of using these modified RNA molecules to inactivate virus in mammalian cells and method of making modified small interfering RNAs (siRNAs) using human Dicer.

La présente invention a trait à des molécules d'ARN en double brin qui agissent comme intermédiaires d'interférence dans des cellules cibles, de préférence des cellules hépatiques. L'invention a également trait à des molécules d'ARN en double brin qui sont modifiées pour être résistantes à la dégradation par la nucléase, qui provoque l'inactivation d'un virus, et plus particulièrement, le virus de l'hépatite C (VHC). L'invention a trait en outre à un procédé d'utilisation de ces molécules d'ARN modifiées pour l'inactivation de virus dans des cellules mammaliennes et un procédé de production de petites molécules modifiées de ARNt utilisant l'enzyme recombinante humaine Dicer.

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