Abstract: Provided herein are targeting peptides and vectors containing a sequence that encodes the targeting peptides that deliver agents to specific substructures in the brain. Provided herein are viral vectors each comprising a modified capsid, wherein the modified capsid comprises at least one amino acid sequence that targets the viral vector to a distinct brain structure.

Abstract: The invention provides for delivery, engineering and optimization of systems, methods, and compositions for manipulation of sequences and/or activities of target sequences especially for use as to nucleotide repeat disorders. Provided are delivery systems and tissues or organ which are targeted as sites for delivery especially for use as to nucleotide repeat disorders. Also provided are vectors and vector systems some of which encode one or more components of a CRISPR complex or system especially for use as to nucleotide repeat disorders, as well as methods for the design and of such. Also provided are methods of directing CRISPR complex or system formation in eukaryotic cells especially for use as to nucleotide repeat disorders including with consideration of specificity for target recognition and avoidance of toxicity and editing or modifying a target site in a genomic locus of interest to alter or improve the status of a disease or a condition.

Abstract: Provided herein are compositions and methods for treatment of Amyotrophic Lateral Sclerosis as well as Spinocerebellar Ataxia Type 2 by way of reducing levels of the ATXN2 gene expression. More specifically. miRNA compositions that target ATXN2 are able to reduce ATXN2 levels.

Abstract: Provided herein are targeting peptides and vectors containing a sequence that encodes the targeting peptides that deliver agents to the brain microvasculature.

Abstract: A therapeutic composition is provided which comprises at least one agent which specifically interferes with PTBP2-binding in the SYNGAP1 gene region to prevent dysfunctional protein production caused by an alternative splicing event, which dysfunctional protein is associated with a disease or disorder. The agent can be an anti-sense oligonucleotide, an RNAi, or combinations thereof. The composition may further comprise a pharmaceutically acceptable aqueous diluent suitable for intrathecal injection. Also provided are methods of treating SYNGAP1-related neurodegenerative disorders.

Abstract: Provided herein are chimeric minigenes, where the alternative splicing of the minigene determines whether an encoded gene is expressed. In particular, the minigenes are alternatively spliced in response to splicing modulator drugs, such that the encoded gene is only expressed in the present of the splicing modulator drug. The encoded gene may encode an inhibitory RNA, a CRISPR-Cas9 protein, a transactivator, or a therapeutic protein.

Abstract: The invention provides for delivery, engineering and optimization of systems, methods, and compositions for manipulation of sequences and/or activities of target sequences especially for use as to nucleotide repeat disorders. Provided are delivery systems and tissues or organ which are targeted as sites for delivery especially for use as to nucleotide repeat disorders. Also provided are vectors and vector systems some of which encode one or more components of a CRISPR complex or system especially for use as to nucleotide repeat disorders, as well as methods for the design and of such. Also provided are methods of directing CRISPR complex or system formation in eukaryotic cells especially for use as to nucleotide repeat disorders including with consideration of specificity for target recognition and avoidance of toxicity and editing or modifying a target site in a genomic locus of interest to alter or improve the status of a disease or a condition.

Abstract: Provided herein are compositions and methods for delivering a molecular therapeutic to the cochlea of a subject. The methods comprise administering an adeno-associated virus (AAV) to the cerebrospinal fluid of the subject. The AAVs encode a therapeutic transgene for molecular therapy. Optionally, the therapeutic transgene may be operably linked to a cochlea-specific promoter.

Abstract: Provided herein are targeting peptides and vectors containing a sequence that encodes the targeting peptides that deliver agents to specific substructures in the brain.

Abstract: The invention provides for delivery, engineering and optimization of systems, methods, and compositions for manipulation of sequences and/or activities of target sequences. Provided are delivery systems and tissues or organ which are targeted as sites for delivery. Also provided are vectors and vector systems some of which encode one or more components of a SIN CRISPR complex, as well as methods for the design and use of such vectors. Also provided are methods of directing SIN CRISPR complex formation in eukaryotic cells to ensure enhanced specificity for target recognition and avoidance of toxicity and to edit or modify a target site in a genomic locus of interest to alter or improve the status of a disease or a condition.

Abstract: Provided herein are targeting peptides and vectors containing a sequence that encodes the targeting peptides that deliver agents to specific substructures in the brain. Provided herein are viral vectors each comprising a modified capsid, wherein the modified capsid comprises at least one amino acid sequence that targets the viral vector to a distinct brain structure.

Abstract: The invention provides for delivery, engineering and optimization of systems, methods, and compositions for manipulation of sequences and/or activities of target sequences. Provided are delivery systems and tissues or organ which are targeted as sites for delivery. Also provided are vectors and vector systems some of which encode one or more components of a SIN CRISPR complex, as well as methods for the design and use of such vectors. Also provided are methods of directing SIN CRISPR complex formation in eukaryotic cells to ensure enhanced specificity for target recognition and avoidance of toxicity and to edit or modify a target site in a genomic locus of interest to alter or improve the status of a disease or a condition.

Abstract: Disclosed herein are methods and compositions useful in targeting a payload to, or editing a target nucleic acid, where a governing gRNA molecule is used to target, optionally inactivate, a Cas9 molecule or a Cas9 molecule/gRNA complex.

Abstract: Disclosed herein are compounds and methods for modulating expression of disease-causing genes such as STXBP1, SCN1A, SCN2A, SCN8A, SLC6A1, and MECP2. Such compounds and methods are useful to treat, prevent, or ameliorate epileptic encephalopathy and neurodevelopmental disorders in an individual in need thereof.

Abstract: Disclosed herein are methods and compositions useful in targeting a payload to, or editing a target nucleic acid, where a governing gRNA molecule is used to target, optionally inactivate, a Cas9 molecule or a Cas9 molecule/gRNA complex.

Abstract: CRISPR/Cas9-mediated genome editing holds clinical potential for treating genetic diseases, such as spinocerebellar ataxia type 2, which is caused by mutations in the ATXN2 gene. Here, compositions and methods for the treatment of spinocerebellar taxia type 2 are provided. In some embodiments, a composition providing a vector encoding a guide RNA of the disclosure and a vector encoding a Cas9 protein or nuclease domain thereof of the disclosure are provided for use in the treatment of spinocerebellar ataxia type 2.

Abstract: The invention provides for delivery, engineering and optimization of systems, methods, and compositions for manipulation of sequences and/or activities of target sequences especially for use as to nucleotide repeat disorders. Provided are delivery systems and tissues or organ which are targeted as sites for delivery especially for use as to nucleotide repeat disorders. Also provided are vectors and vector systems some of which encode one or more components of a CRISPR complex or system especially for use as to nucleotide repeat disorders, as well as methods for the design and of such. Also provided are methods of directing CRISPR complex or system formation in eukaryotic cells especially for use as to nucleotide repeat disorders including with consideration of specificity for target recognition and avoidance of toxicity and editing or modifying a target site in a genomic locus of interest to alter or improve the status of a disease or a condition.

Abstract: The invention provides for delivery, engineering and optimization of systems, methods, and compositions for manipulation of sequences and/or activities of target sequences especially for use as to nucleotide repeat disorders. Provided are delivery systems and tissues or organ which are targeted as sites for delivery especially for use as to nucleotide repeat disorders. Also provided are vectors and vector systems some of which encode one or more components of a CRISPR complex or system especially for use as to nucleotide repeat disorders, as well as methods for the design and of such. Also provided are methods of directing CRISPR complex or system formation in eukaryotic cells especially for use as to nucleotide repeat disorders including with consideration of specificity for target recognition and avoidance of toxicity and editing or modifying a target site in a genomic locus of interest to alter or improve the status of a disease or a condition.

Abstract: Provided are methods of treating the retinal dysfunction in a mammal with lysosomal storage disorder which method comprises sub-retinal administration of recombinant AAV particles encoding a soluble lysosomal tripeptidyl peptidase 1 (TPP1). In particular, the retinal dysfunction may be occurring in children with CLN2 deficiency receiving enzyme replacement therapy or gene therapy for their disease.

Abstract: Disclosed herein are methods and compositions useful in targeting a payload to, or editing a target nucleic acid, where a governing gRNA molecule is used to target, optionally inactivate, a Cas9 molecule or a Cas9 molecule/gRNA complex.