Compositions and regimens useful in treating phenylketonuria are provided. The compositions include recombinant adeno-associated virus (rAAV) with a transthyretin enhancer and promoter driving expression of a human phenylalanine hydroxylase.

The present disclosure relates to genetically modified non-human animals that express a human or chimeric (e.g., humanized) CD73, and methods of use thereof.

This invention relates to polynucleotides comprising UBE3A open reading frame (ORF) sequences, vectors comprising the same, and methods of using the same for delivery of the ORF to a cell or a subject and to treat disorders associated with aberrant expression of a UBE3A gene or aberrant activity of a UBE3A gene product in the subject, such as Angelman Syndrome.

The invention disclosed herein provides methods and materials useful in gene therapy regimens designed to inhibit myelination abnormalities that occur in the urea cycle disorder arginase deficiency. The underlying cause of the progressive neurological dysfunction that occurs in this disorder has been previously unknown and conventional therapies, at best, only slow the onset of neurological dysfunction. This neurological dysfunction results at least in part from the dysmyelination that occurs in the central nervous system due to the lack of adequate hepatic expression of arginase 1. We have discovered an origin of this neurological dysfunction and, using this information, designed materials and associated methods of gene therapy. The methods and materials disclosed herein can inhibit and essentially prevent neurological dysfunction in a murine model of arginase deficiency.

This application provides polynucleotides comprising a coding sequence for a functionally active hereditary hemochromatosis protein (HFE) or a functionally active fragment thereof. The invention further provides compositions comprising said polynucleotides and their use in methods of preventing or treating hemochromatosis in a subject.

A recombinant adeno-associated virus (rAAV) useful for treating type II glycogen storage disease (Pompe) disease is provided. The rAAV comprises an AAV capsid which targets cells of at least one of muscle, heart, kidney, and the central nervous system and which has packaged therein a vector genome comprising a nucleic acid sequence encoding a human acid-α-glucosidase hGAA780I protein or fusion protein under the control of regulatory sequences which direct its expression. Also provided are methods of making and using this rAAV.

Provided herein is a gene therapy for PKP2 (Plakophilin-2), e.g. using an adeno-associated virus (AAV) vector. The promoter of the vector may be a MHCK7 promoter or a cardiac troponin T (HTNNT2) promoter. The capsid may be an AAV9 or AAVrh74 capsid or a functional variant thereof. Other promoters or capsids may be used. Further provided are methods of treatment, such as by intravenous, intracoronary, intracarotid or intracardiac administration of the rAAV vector, and other compositions and methods.

Methods and compositions using a CRISPR-Cas Type IIIA resulting in RNA gene knockdown and knockout in an animal.

The present disclosure provides a modified human protein having improved in vivo stability. The modified human protein has been altered from a wild-type human protein at either at least one ubiquitination site, at the signal peptide portion, or both. The protein of the disclosure can be produced from a codon optimized mRNA suitable for administration to a patient suffering from deficiency of the wild-type protein, wherein upon administration of the mRNA to the patient, the modified protein of the disclosure is expressed in the patient in therapeutically effective amounts.

The present disclosure relates to a composition for use in the treatment of dystrophic epidermolysis bullosa, comprising a cell obtained from a patient with dystrophic epidermolysis bullosa, wherein the cell is a mesenchymal stem cell and genetically modified to produce type VII collagen. The present disclosure also relates to a composition for use in the treatment of dystrophic epidermolysis bullosa, comprising a cell that produces type VII collagen, wherein the composition is to be administered into a blister.