2'-substituted oligomeric compounds and compositions for use...

C - Chemistry – Metallurgy – 07 – H

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C07H 21/00 (2006.01) A01N 43/04 (2006.01) A61K 31/7088 (2006.01) A61K 48/00 (2006.01) C07H 21/02 (2006.01) C07H 21/04 (2006.01) C12N 15/11 (2006.01) C12P 19/34 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2504554

Compositions comprising first and second oligomers are provided wherein at least a portion of the first oligomer is capable of hybridizing with at least a portion of the second oligomer, at least a portion of the first oligomer is complementary to and capable of hybridizing to a selected target nucleic acid, and at least one of the first or second oligomers includes a modified sugar and/or backbone modification. In some embodiments the modification is a 2' substituent group on a sugar moiety that is not H or OH. Oligomer/protein compositions are also provided comprising an oligomer complementary to and capable of hybridizing to a selected target nucleic acid and at least one protein comprising at least a portion of an RNA-induced silencing complex (RISC), wherein at least one nucleotide of the oligomer has a modified sugar and/or backbone modification.

L'invention concerne des compositions qui comprennent un premier oligomère et un second oligomère. Au moins une partie du premier oligomère peut s'hybrider avec au moins une partie due second oligomère, au moins une partie du premier oligomère est complémentaire d'un acide nucléique cible choisi et capable de s'hybrider avec ledit acide nucléique et au moins un de ces deux oligomères comprend un sucre modifié et/ou une modification du squelette. Dans certains modes de réalisation, la modification est un groupe 2'-substituant sur une fraction de sucre qui n'est pas H, ni OH. L'invention concerne également des compositions oligomères/protéiniques qui comprennent un oligomère complémentaire d'un acide nucléique cible choisi et capable de s'hybrider avec ledit acide nucléique et au moins une protéine comprenant au moins une partie d'un complexe d'invalidation induit par ARN (RISC). Au moins un nucléotide de l'oligomère comprend un sucre modifié et/ou une modification du squelette.

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