Described are RNAi agents, compositions that include RNAi agents, and methods for inhibition of a matrix metallopeptidase 7 (MMP7) gene. The MMP7 RNAi agents and RNAi agent conjugates disclosed herein inhibit the expression of an MMP7 gene. Pharmaceutical compositions that include one or more MMP7 RNAi agents, optionally with one or more additional therapeutics, are also described. Delivery of the described MMP7 RNAi agents to pulmonary cells, in vivo, provides for inhibition of MMP7 gene expression, which can provide a therapeutic benefit to subjects, including human subjects, for the treatment of various diseases including pulmonary inflammation diseases such as idiopathic pulmonary fibrosis (IPF).

Certain embodiments disclosed herein are directed to compounds and methods for modulating APP expression. In certain embodiments, modulating the splicing of amyloid precursor protein (APP) reduces amyloid β (Aβ) production.

Provided herein, are compositions comprising GalNAc moieties that may be conjugated to an oligonucleotide. The oligonucleotide may be a small interfering RNA or an antisense oligonucleotide. Also provided herein are methods of treatment that include administering the composition to a subject.

Disclosed herein are compounds, compositions and methods for modulating the expression of huntingtin in a cell, tissue or animal. Further provided are methods of slowing or preventing Huntington's Disease (HD) progression using an antisense compound targeted to huntingtin. Additionally provided are methods of delaying or preventing the onset of Huntington's Disease (HD) in an individual susceptible to Huntington's Disease (HD). Also provided are uses of disclosed compounds and compositions in the manufacture of a medicament for treatment of diseases and disorders.

The present disclosure provides a DNA-targeting RNA that comprises a targeting sequence and, together with a modifying polypeptide, provides for site-specific modification of a target DNA and/or a polypeptide associated with the target DNA. The present disclosure further provides site-specific modifying polypeptides. The present disclosure further provides methods of site-specific modification of a target DNA and/or a polypeptide associated with the target DNA The present disclosure provides methods of modulating transcription of a target nucleic acid in a target cell, generally involving contacting the target nucleic acid with an enzymatically inactive Cas9 polypeptide and a DNA-targeting RNA. Kits and compositions for carrying out the methods are also provided. The present disclosure provides genetically modified cells that produce Cas9; and Cas9 transgenic non-human multicellular organisms.

Methods for treating subjects who have autoimmune diseases including multiple sclerosis. The methods include administering, e.g., orally, one or more micro RNAs, e.g., miR-30d, miR-7706, and miR-1246, or mimics thereof.

One aspect of the present invention relates to double-stranded RNA (dsRNA) agent capable of inhibiting the expression of a target gene. The sense strand of the dsRNA agent comprises at least one thermally destabilizing nucleotide, and at least one said thermally destabilizing nucleotide occurring at a site opposite to the seed region (positions 2-8) of the antisense strand; and the antisense strand of the dsRNA agent comprises. at least two modified nucleotides that provide the nucleotide a steric bulk that is less than or equal to the steric bulk of a 2′-OMe modification, wherein said modified nucleotides are separated by 11 nucleotides in length. Other aspects of the invention relates to pharmaceutical compositions comprising these dsRNA agents suitable for therapeutic use, and methods of inhibiting the expression of a target gene by administering these dsRNA agents, e.g., for the treatment of various disease conditions.

The present disclosure provides a DNA-targeting RNA that comprises a targeting sequence and, together with a modifying polypeptide, provides for site-specific modification of a target DNA and/or a polypeptide associated with the target DNA. The present disclosure further provides site-specific modifying polypeptides. The present disclosure further provides methods of site-specific modification of a target DNA and/or a polypeptide associated with the target DNA The present disclosure provides methods of modulating transcription of a target nucleic acid in a target cell, generally involving contacting the target nucleic acid with an enzymatically inactive Cas9 polypeptide and a DNA-targeting RNA. Kits and compositions for carrying out the methods are also provided. The present disclosure provides genetically modified cells that produce Cas9; and Cas9 transgenic non-human multicellular organisms.

A nucleoside that is more practical for RNA pharmaceuticals and other applications and use thereof is represented by formula (1) or (2) below, or a salt thereof: ##STR00001##
(In formula (1), R.sup.1 represents a hydrogen atom, a hydroxyl group, a hydroxyl group in which a hydrogen atom is substituted by an alkyl group or alkenyl group, or a protected group, and in formula (2), X represents a halogen atom. In formula (1) and formula (2), R.sup.2 and R.sup.3 may be the same or different, and each represents a hydrogen atom etc., R.sup.4 represents NHR.sup.7 (in which R.sup.7 represents a hydrogen atom etc., and B represent represents any of a purine-9-yl group, 2-oxo-pyrimidin-1-yl group, substituted purine-9-yl group or substituted 2-oxo-pyrimidin-1-yl group).

The present embodiments provide methods, compounds, and compositions useful for inhibiting PNPLA3 expression, which may be useful for treating, preventing, or ameliorating a disease associated with PNPLA3.