Compositions and methods are provided for treating Leber congenital amaurosis (LCA) in a subject. In one aspect, a recombinant adeno-associated viral vector is provided which includes a nucleic acid molecule comprising a sequence encoding Lebercilin. In another aspect, Lebercilin has an amino acid sequence of SEQ ID NO: 1. In yet another aspect, the nucleic acid molecule has a sequence of SEQ ID NO: 3 or a variant thereof. In desired embodiments, the subject is human, cat, dog, sheep, or non-human primate.

Embodiments described herein relate to compositions including genetically modified CAR cells and uses thereof for treating cancer. Some embodiments of the present disclosure relate to compositions and methods for T cell response enhancement and/or CAR cell preparation. For example, a method may include obtaining cells comprising a CAR and culturing the cells in the presence of an agent that is recognized by the extracellular domain of the CAR.

Various methods and compositions for treating age-associated conditions and other medical conditions, such as muscle diseases, type 2 diabetes, and/or obesity are described. Methods of enhancing cellular uptake of NMN and stimulating NAD+ production are further described. Various mammalian cells and mammalian cell lines are described including those comprising a cDNA encoding a Slc12a8 protein. Gene therapy vectors comprising a nucleic acid encoding Slc12a8 and non-human animals comprising an inactivating mutation in a Slc12a8 gene are also disclosed. Also described are methods for screening a candidate compound to identify compounds that promote NMN transport.

The present invention relates a vector system and a vector system for use in a method of treating a disease, each comprising a first vector and a second vector. The present invention further relates to the first vector, the second vector and a combination of the first vector and the second vector. In addition, the present invention relates to a pharmaceutical composition comprising the vector system of the invention or the combination of the invention.

The application describes ceDNA vectors having linear and continuous structure for delivery and expression of a transgene. ceDNA vectors comprise an expression cassette flanked by two ITR sequences, where the expression cassette encodes a transgene encoding PAH protein. Some ceDNA vectors further comprise cis-regulatory elements, including regulatory switches. Further provided herein are methods and cell lines for reliable gene expression of PAH protein in vitro, ex vivo and in vivo using the ceDNA vectors. Provided herein are method and compositions comprising ceDNA vectors useful for the expression of PAH protein in a cell, tissue or subject, and methods of treatment of diseases with said ceDNA vectors expressing PAH protein. Such PAH protein can be expressed for treating disease, e.g., Phenylketonuria (PKU).

Antibodies to the enzyme matriptase-2 (MTP-2) are presented. Inhibiting MTP-2 reduces uptake of dietary iron and reduces the release of iron from cellular stores in the body. Inhibitors of MTP-2 (such as antibodies to the serine protease domain) can be used to treat iron overload, which is a feature of diseases such as beta-thalassaemia and which otherwise leads to toxic accumulation of iron. Combination of an MTP-2 inhibitor with an activin receptor ligand trap, or with erythropoietin, provides additional therapeutic effects.

Disclosed herein are CAR-T cells engineered to express mutant PGC-1α, wildtype NT-PGC-1α, or mutant NT-PGC-1α to enhance or prevent degradation of metabolic fitness. Also disclosed herein is a method for enhancing metabolic fitness of a CAR-T cell by transducing the CAR-T cell with a vector encoding a mutant PGC-1α, wildtype NT-PGC-1α, or mutant NT-PGC-1α. Also disclosed is a method for producing CAR-T cells that involves transducing activated T cells with a viral vector encoding a mutant PGC-1α, wildtype NT-PGC-1α, or mutant NT-PGC-1α polypeptide.

The present invention provides a pharmaceutical composition for treating diabetic retinopathy. According to the present invention, the pharmaceutical composition can treat diabetic retinopathy by means of a single administration and thus, compared to conventional treatment methods, which require intraocular injection on a monthly basis, can reduce pain and ocular damage and infections in patients and reduce treatment costs.

Methods are provided for treating osteoarthritis by administering αKlotho protein and sTGFβ-R2 protein to a site within a mammal exhibiting symptoms of osteoarthritis, such as a knee joint. The αKlotho protein and the sTGFβ-R2 protein are both present at the osteoarthritic site.

The present disclosure relates to methods and compositions for elevating and stabilizing retromer for treating and/or preventing Alzheimer's disease and other neurodegenerative disorders. Additionally, the disclosure relates to adenoviral based therapy for treating Alzheimer's disease (AD), and other neurodegenerative conditions such as Parkinson's Disease (PD), neuronal ceroid lipofuscinosis (NCL), and transmissible spongiform encephalopathies (TSEs or prion disease), multiple system atrophy (MSA), Down's syndrome, and hereditary spastic paraplegia, as well as tauopathies such as progressive supranuclear palsy (PSP), frontotemporal lobar dementia linked to chromosome 17q21-22 and its subtypes (FTLD-17/FTLD-Tau), Lewy Body Disease (LBD), amyotrophic lateral sclerosis (ALS), frontal-temporal degeneration (FTD), ALS-FTD, and chronic traumatic encephalopathy (CTE).