The disclosure provides compositions and methods for the preparation, manufacture, formulation and therapeutic use of adeno-associated virus (AAV) particles for the prevention and/or treatment of diseases.

Disclosed are oligonucleotides, compositions, and methods that may be useful in the treatment of age-related macular degeneration (AMD). The treatment of age-regulated macular degeneration (AMD) may involve inhibiting an miR-33 target nucleic acid. For example, inhibition of an miR-33 target nucleic acid may be achieved using antisense oligonucleotides targeting an miR-33 target nucleic acid, interfering oligonucleotides targeting an miR-33 target nucleic acid, or recombinant AAV particles including a vector encoding an antisense oligonucleotide or interfering oligonucleotide targeting an miR-33 target nucleic acid.

In some aspects, the disclosure relates to compositions and methods useful for inhibiting SOD1 expression in cells (e.g., cells of a subject). In some embodiments, the disclosure describes isolated nucleic acids engineered to express an inhibitory nucleic acid targeting endogenous SOD1 and an mRNA encoding a hardened SOD1 protein. In some embodiments, compositions and methods described by the disclosure are useful for treating Amyotrophic Lateral Sclerosis (ALS) in a subject.

The present invention generally relates to methods and compositions used delivery of gene editing compositions including transcriptional effectors with parvovirus and preferred methods for making same.

The present disclosure relates to a novel murine parvovirus, sequences encoded thereby, and applications therefor. In one embodiment the disclosure provides a method for detecting the presence of a parvovirus in a sample, comprising detecting one or more nucleic acids or polypeptides derived from the parvovirus, or antibodies against the parvovirus, in the sample. Also provided are vectors and host cells comprising sequences encoded by the parvovirus and related sequences. Also provided are animal models of kidney disease associated with infection by the parvovirus.

Viral vectors comprising engineered hOTC DNA and RNA sequences are provided which when delivered to a subject in need thereof are useful for treating hyperammonemia, ornithine transcarbamylase deficiency and symptoms associated therewith. Also provided are methods of using hOTC for treatment of liver fibrosis and/or cirrhosis in OTCD patients by administering hOTC.

A method of altering the targeting and/or cellular uptake efficiency of an adeno-associated virus (AAV) viral vector having a capsid containing an AAV9 cell surface binding domain is described. The method involves modifying a clade F cell surface receptor which comprises a glycan having a terminal sialic acid residue and a penultimate β-galactose residue. The modification may involve retargeting the vector by temporarily functionally ablate AAV9 binding in a subset of cells, thereby redirecting the vector to another subset of cells. Alternatively, the modification may involve increasing cellular update efficiency by treating the cells with a neuraminidase to expose cell surface β-galactose. Also provided are compositions containing the AAV9 vector and a neuraminidase. Also provided is a method for purifying AAV9 using β-galactose linked to solid support. Also provided are mutant vectors which have been modified to alter their targeting specificity, including mutant AAV9 in which the galactose binding domain is mutated and AAV in which an AAV9 galactose binding domain is engineered.

Genetically engineered immune cells such as T cells capable of secreting an interleukin-12 protein, for example, upon activation of the T cells. Such genetically engineered immune cells may further express a chimeric antigen receptor (CAR) targeting an antigen of interest, e.g., a tumor-associated antigen, a disrupted T cell receptor alpha chain constant (TRAC) gene, a disrupted beta-2-microglubulin (β2M) gene, a disrupted gene encoding the antigen of interest, or a combination thereof.

Artificial expression constructs for selectively modulating gene expression in selected central nervous system cell types are described. The artificial expression constructs can be used to selectively express synthetic genes or modify gene expression in GABAergic interneurons.

The invention relates to compositions and methods for improving a dystrophic phenotype in a human subject having myopathies, such as Duchenne Muscular Dystrophy (DMD). In one embodiment, the invention relates to compositions comprising an adenoviral vector targeting the let-7c miRNA binding sequence in 3′-UTR genome editing of the utrophin gene and methods of treatment comprising administration thereof.