Provided herein are methods and compositions for treatment of Batten disease. Such compositions include a recombinant adeno-associated virus (rAAV), said rAAV comprising an AAV capsid, and a vector genome packaged therein, said vector genome comprising (a) an AAV 5′ inverted terminal repeat (ITR) sequence; (b) a promoter; (c) a CLN2 coding sequence encoding a human TPP1; (d) an AAV 3′ ITR.

The present invention provides for the intratumoral delivery of immunomodulators. In particular, it provides delivery of co-stimulatory molecules using intratumoral electroporation. The present invention provides a method for the treatment of malignancies, wherein the administration of a plasmid encoding for a therapeutic costimulatory protein, in combination with electroporation has a therapeutic effect on primary tumors as well as distant tumors and metastases.

Disclosed are methods for treating or limiting development of diabetes, by transplanting into the eye of a subject with diabetes or at risk of diabetes an amount effective to treat or limit development of diabetes of insulin-producing cells engineered to reduce expression of a β3 subunit of Cav (Cavβ3).

Delivery devices, systems, and methods related thereto may be used in humans for spinal delivery of cells, drugs or vectors. Thus, the system enables subpial delivery, which leads to a near complete spinal parenchymal AAV9-mediated gene expression or ASO distribution in both white and grey matter.

The invention provides a platform and methods of using the platform for the regulation of the expression of a target gene using exposure to an aptamer ligand (for example, a small molecule). The platform features a polynucleotide gene regulation cassette that is placed in the target gene and includes a synthetic riboswitch positioned in the context of a 5′ intron-alternative exon-3′ intron. The riboswitch comprises an effector region and a sensor region (e.g., an aptamer that binds a small molecule ligand) such that the alternative exon is spliced into the target gene mRNA when the ligand is not present thereby preventing expression of the target gene. When the ligand is present, the alternative exon is not spliced into the target gene mRNA thereby providing expression of the target gene.

The present invention provides a therapy for treating neuropathic pain by subpial administration of small quantities of a composition for spinal segment-specific upregulation of GAD65 (glutamatedecarboxylase) gene and VGAT (vesicular GABA transporter) gene, which is effective for induction of nociceptive effects by potentiating release of vesicular GABA from infected dorsal horn neurons into the synaptic cleft.

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.

Provided herein are improved gene therapy vectors and methods of use, in some embodiments, comprising sequences for improved expression and cellular targeting of a therapeutic protein.

The invention provides for recombinant AAV vectors comprising a polynucleotide sequence comprising the guide strand of miR-29c and methods of using the recombinant vectors to reduce or prevent fibrosis in subjects suffering from muscular dystrophy.

Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of retinal cells as compared to the infectivity of the retinal cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more ceils of the retina for the treatment of retinal disorders and diseases.