Described herein are compounds comprising modified oligonucleotides that are complementary to miR-103 and/or miR-107 and methods of treating diseases and disorders using the compounds.

The invention relates to a method of generating a library of polynucleotide molecules encoding guide RNAs (gRNAs) from target polynucleotide(s). The invention also relates to a library of polynucleotide molecules encoding gRNAs obtainable by the aforementioned method, and a gRNA library generation kit thereof.

Disclosed herein are antisense compounds and methods for decreasing PKK mRNA and protein expression. Such methods, compounds, and compositions are useful to treat, prevent, or ameliorate PKK-associated diseases, disorders, and conditions.

The present invention is directed to methods and compositions for blocking the effect of the intronic inhibitory splicing region of intron 7 of the SMN2 gene. The compositions and methods of the instant invention include short oligonucleotide reagents (e.g., oligoribonucleotides) that effectively target sites in the SMN2 pre-mRNA, thereby modulating the splicing of SMN2 pre-mRNA to include exon 7 in the processed transcript. The target regions include a unique RNA structure and a 6-nucleotide long sequence that is essential for initiating a long distance steric inhibitory interaction. The identified region provides a novel target deep within SMN2 intron 7. Intronic targets are highly desirable as annealing of an ASO to an intron does not interfere with translation and transport of mRNA. The invention also provides opportunity to employ a short antisense oligonucleotide or a small compound against the unique RNA structure responsible of SMN2 exon 7 skipping in SMA.

In some embodiments, the invention is directed to a method for diagnosing fibrosis and/or fibrosis related diseases and to a method for screening a pharmaceutically active compound for the treatment of fibrosis and/or fibrosis related diseases. The present invention further relates to compositions for use in the treatment, amelioration, and/or prevention of fibrosis. In certain embodiments, the compositions modulate the activity of a miRNA for the treatment, amelioration, and/or prevention of fibrosis. In certain embodiments, the compositions inhibit the activity of miR-21 for the treatment, amelioration, and/or prevention of fibrosis.

Disclosed herein are antisense compounds and methods for decreasing PKK mRNA and protein expression. Such methods, compounds, and compositions are useful to treat, prevent, or ameliorate PKK-associated diseases, disorders, and conditions.

Disclosed herein are antisense compounds and methods for decreasing Ataxin 2 mRNA and protein expression. Such methods, compounds, and compositions are useful to treat, prevent, or ameliorate Ataxin 2 associated diseases, disorders, and conditions. Such Ataxin 2 associated diseases include spinocerebellar ataxia type 2 (SCA2), amyotropic sclerosis (ALS), and parkinsonism.

Provided herein are methods, compounds, and compositions for reducing expression of huntingtin mRNA and protein in an animal. Such methods, compounds, and compositions are useful to treat, prevent, delay, or ameliorate Huntington's disease, or a symptom thereof.

Disclosed herein are antisense compounds and methods for decreasing Tau mRNA and protein expression. Such methods, compounds, and compositions are useful to treat, prevent, or ameliorate Tau-associated diseases, disorders, and conditions.

Among other things, the present disclosure provides oligonucleotides, compositions, and methods thereof. Among other things, the present disclosure encompasses the recognition that structural elements of oligonucleotides, such as base sequence, chemical modifications (e.g., modifications of sugar, base, and/or internucleotidic linkages) or patterns thereof, conjugation with additional chemical moieties, and/or stereochemistry [e.g., stereochemistry of backbone chiral centers (chiral internucleotidic linkages)], and/or patterns thereof, can have significant impact on oligonucleotide properties and activities, e.g., knockdown ability, stability, delivery, etc. In some embodiments, the oligonucleotides decrease the expression, activity and/or level of a C9orf72 gene, including but not limited to, one comprising a repeat expansion, or a gene product thereof. In some embodiments, the present disclosure provides methods for treatment of diseases using provided oligonucleotide compositions, for example, in treatment of C9orf72-related disorders.