The disclosure relates to double stranded ribonucleic acid (dsRNAi) agents and compositions targeting a SOD1 gene, as well as methods of inhibiting expression of a SOD1 gene and methods of treating subjects having a SOD1-associated neurodegenerative disease or disorder, e.g., Amyotrophic Lateral Sclerosis (ALS), Alzheimer's disease (AD), Parkinson's disease (PD), and Down's syndrome (DS), using such dsRNAi agents and compositions.

The invention provides engineered RNA precursors that when expressed in a cell are processed by the cell to produce targeted small interfering RNAs (siRNAs) that selectively silence targeted genes (by cleaving specific mRNAs) using the cell's own RNA interference (RNAi) pathway. By introducing nucleic acid molecules that encode these engineered RNA precursors into cells in vivo with appropriate regulatory sequences, expression of the engineered RNA precursors can be selectively controlled both temporally and spatially, i.e., at particular times and/or in particular tissues, organs, or cells.

A nucleic acid complex having a novel structure, which may introduce a bioactive nucleic acid into cells, a composition for treating or diagnosing disease including the same, and a method of regulating target gene expression using the same, are described. The nucleic acid complex may include a bioactive nucleic acid, which includes a material for facilitating endosomal escape, and a carrier peptide nucleic acid, complementarily bound to each other, as useful in a composition for treating or diagnosing disease, or a composition for regulating target gene expression. Such nucleic acid complex may increase the stability of the bioactive nucleic acid, reduce loss of the bioactive nucleic acid, such as precipitation caused by self-aggregation, increase the intracellular delivery efficiency of the bioactive nucleic acid, and easily regulate target gene expression.

Provided herein are bispecific personalized aptamers that induce the cell death of cancer cells and methods of use thereof.

The present invention provides an antisense nucleic acid medicine that can modulate expression of a target transcriptional product in an ischemic site of a subject. The present invention also provides a composition for modulating expression of a target transcriptional product in an ischemic site of a subject, having a nucleic acid complex formed by annealing together a first nucleic acid strand having an antisense oligonucleotide region with respect to the target transcriptional product, and a lipid-conjugated second nucleic acid strand having a complementary region that is complementary to at least part of the first nucleic acid strand.

The present invention is directed to small interfering RNA molecules (siRNA) targeted against nucleic acid sequence that encodes huntingtin or ataxin-1, and methods of using these siRNA molecules.

The disclosure relates to synthetic oligonucleotides that are unique in that they are RNA molecules that have the capacity to form a hydrogel. Also disclosed are DNA oligonucleotides that encode the RNA oligos so that the oligos can be prepared using in vitro transcription. The disclosure further pertains to pharmaceutical compositions comprising these hydrogels.

Methods for treating, and for identifying novel treatments for, neurodegenerative diseases, as well as animal and cellular models. The present disclosure shows that age dependent accumulation of genomic lesions leads to the production of RNA molecules within neurons that mimic viruses and intrinsically activate innate immune signaling, which triggers neurodegeneration. This hypothesis is supported by the results shown herein elucidating the mechanism of neurodegeneration in two mouse lines that specifically express different isoforms of the human amyloid precursor protein (hAPP) gene, which is associated with Alzheimer's disease (AD), exclusively in olfactory sensory neurons (OSNs) in the nose.

The present invention concerns methods and reagents useful in modulating gene expression in a variety of applications, including use in therapeutic, diagnostic, target validation, and genomic discovery applications. Specifically, the invention relates to synthetic chemically modified small nucleic acid molecules, such as short interfering nucleic acid (siNA), short interfering RNA (siRNA), double-stranded RNA (dsRNA), micro-RNA (miRNA), and short hairpin RNA (shRNA) molecules capable of mediating RNA interference (RNAi) against target nucleic acid sequences. The small nucleic acid molecules are useful in the treatment of any disease or condition that responds to modulation of gene expression or activity in a cell, tissue, or organism.

The present invention relates to new nucleic acid molecules of therapeutic interest, in particular for use in the treatment of cancer.