The present disclosure provides oligonucleotide compositions comprising (1) an oligonucleotide of the present disclosure, e.g., an ASO, siRNA, shRNA, DNA or RNA aptamer, gene therapy vector, miRNA, miRNA mimic, antimiR, DNA or RNA decoy, CpG oligonucleotide, or any therapeutic or diagnostic oligonucleotide known in the art, and (ii) a caprylic acid derivative, e.g., 5-CNAC. In some aspects, the oligonucleotide composition is formulated for delivery to the gastrointestinal tract. Thus, some aspects, the present disclosure provides oligonucleotide compositions for oral delivery comprising a therapeutic or diagnostic oligonucleotide (e.g., an ASO) and a caprylic acid derivative (e.g., 5-CNAC or de derivative thereof).

Provided herein are methods for the treatment of polycystic kidney disease, including autosomal dominant polycystic kidney disease, using modified oligonucleotides targeted to miR-17.

Described are compounds and methods useful in the treatment of Fuchs' Endothelial Corneal Dystrophy (FECD).

The present invention refers to an oligonucleotide comprising 12 to 25 nucleotides, wherein at least one of the nucleotides comprises a modification selected from the group consisting of a bridged nucleic acid such as LNA, ENA, a 2′Fluoro modified nucleotide, a 2 O-Methyl modified nucleotide, a 2 O-Methoxy modified nucleotide, a FANA and a combination thereof. The oligonucleotide hybridizes with a nucleic acid sequence of Foxp3 of SEQ ID NO.1 and/or of SEQ ID NO.2 resulting in a reduction of the expression of FoxP3 mRNA, FoxP3 pre-mRNA or a combination thereof. The invention is further directed to a pharmaceutical composition comprising an oligonucleotide of the present invention and to the oligonucleotide and pharmaceutical composition, respectively for use in a method of preventing and/or treating a disorder, where FoxP3 imbalance is involved.

Disclosed are a 5′-modified nucleoside and a nucleotide using the same. The nucleoside of the present invention is represented by the formula (I) below. The 5′-modified nucleoside of the present invention is usable as a substitute for a phosphorothioate-modified nucleic acid, which has a risk of, for example, accumulation in a specific organ. The 5′-modified nucleoside also has excellent industrial productivity because a diastereomer separation step is not involved in the production process thereof.

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The object of the present invention is to provide a nucleic acid agent that is efficiently delivered to the nervous system, for example, the central nervous system to which drug delivery can be prevented by BBB, and produces an antisense effect on the target transcriptional product at the delivery site, and a composition comprising the same. In an embodiment, the present invention provides a double-stranded nucleic acid complex formed by annealing a first nucleic acid strand that hybridizes to a part of a target transcriptional product and has an antisense effect on the target transcriptional product, and a second nucleic acid strand that comprises a base sequence complementary to the first nucleic acid strand and is bound to a C.sub.22-35 alkyl group optionally substituted with a hydroxy group or an analog thereof.

The present invention relates to an oligomer conjugate for use in the treatment of a viral disorder. The oligomer conjugate comprises: a) an oligomer capable of modulating a target sequence in HBx and/or HBsAg of Hepatitis B Virus (HBV) to treat said viral disorder; and b) a carrier component capable of delivering the oligomer to the liver which is linked, preferably conjugated, to the oligomer.

In one aspect, the invention relates to a method of loading exosomes with oligonucleotide cargo, by incubating an oligonucleotide comprising one or more hydrophobic modifications with a population of exosomes for a period of time sufficient to allow loading of the exosomes with the oligonucleotide. Exosomes loaded with hydrophobically modified oligonucleotide cargo, and uses thereof, are also provided.

The present invention relates to antisense LNA oligonucleotides (oligomers) complementary to ATXN3 pre-mRNA sequences, which are capable of inhibiting the expression of ATXN3 protein. Inhibition of ATXN3 expression is beneficial for the treatment of spinocerebellar ataxia

Methods of treating hepatic steatosis involve administering to a subject a DENND5B inhibitor, thereby reducing the expression of and/or activity of DENND5B in liver of the subject. The DENND5B inhibitor can include antisense oligonucleotide (ASO), CRISPR interference (CRISPRi), miRNA, siRNA, locked nucleic acid (LNA) nucleotides, or a combination thereof.