MicromiRs

摘要

The present invention relates to very short heavily modified oligonucleotides which target and inhibit microRNAs in vivo, and their use in medicaments and pharmaceutical compositions.

主权项

1. An oligomer of a contiguous sequence of 7, 8, or 9 nucleotide units in length, for use in reducing the effective amount of a microRNA target in a cell or an organism, wherein at least 70% of the nucleotide units of the oligomer are selected from the group consisting of LNA (Locked Nucleic Acid) units and 2′ substituted nucleotide analogues, and wherein at least 50% of the nucleotide units of the oligomer are LNA units, and wherein at least one of the internucleoside linkages present between the nucleotide units of the contiguous nucleotide sequence is a phosphorothioate internucleoside linkage, wherein the contiguous nucleotide sequence is 100% complementary to the seed sequence of miR-21 (SEQ ID NO: 410), and wherein the seed sequence of miR-21 consists of nucleotides 2 to 8 of SEQ ID NO: 410 counting from the sequence's 5′ end.