Modified iRNA agents
First Claim
1. An iRNA agent comprising a first strand and a second strand, wherein at least one subunit having a formula (I) is incorporated into at least one of said strands, and at least one of said strands leads to the cleavage of a complementary target sequence via a RISC dependent mechanism:
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Abstract
The invention relates to iRNA agents, which preferably include a monomer in which the ribose moiety has been replaced by a moiety other than ribose. The inclusion of such a monomer can allow for modulation of a property of the iRNA agent into which it is incorporated, e.g., by using the non-ribose moiety as a point to which a ligand or other entity, e.g., a lipophilic moiety. e.g., cholesterol, is directly, or indirectly, tethered. The invention also relates to methods of making and using such modified iRNA agents.
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Citations
43 Claims
- 1. An iRNA agent comprising a first strand and a second strand, wherein at least one subunit having a formula (I) is incorporated into at least one of said strands, and at least one of said strands leads to the cleavage of a complementary target sequence via a RISC dependent mechanism:
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16. An iRNA agent comprising a first strand and a second strand, wherein at least one subunit having a formula (I′
- ) is incorporated into at least one of said strands;
- View Dependent Claims (17, 18, 19, 20)
- ) is incorporated into at least one of said strands;
Specification