A DNA plasmid useful for diagnostic and therapeutic gene therapy is disclosed. Improvements to gene therapy methods known in the art are provided to ensure cancer-targeting, high efficacy, and long durability of expression. The DNA plasmid is combined with compositions of polymeric nanoparticles for non-viral gene therapy to treat cancer, including hepatocellular carcinoma and prostate cancer.

A novel vector, composition and method of treating a neurological disorder characterized by deficient UBE3A is presented. The UBE3A gene, which encodes for E6-AP, a ubiquitin ligase, was found to be responsible for Angelman syndrome (AS). A unique feature of this gene is that it undergoes maternal imprinting in a neuron-specific manner. In the majority of AS cases, there is a mutation or deletion in the maternally inherited UBE3A gene, although other cases are the result of uniparental disomy or mismethylation of the maternal gene. A UBE3A protein construct was generated with additional sequences that allow the secretion from cells and uptake by neighboring neuronal cells. This UBE3A vector may be used in gene therapy to confer a functional E6-AP protein into the neurons and rescue disease pathology.

A lentiviral vector system for expressing a lentiviral particle is disclosed. The lentiviral vector system includes a therapeutic vector. The therapeutic vector comprises a phenylalanine hydroxylase (PAH) sequence for expressing at least one of PAH or a variant thereof, wherein the PAH sequence is truncated.

This disclosure pertains to methods and compositions for tolerizing a mammal's brain to exogenously administered acid sphingomyelinase polypeptide by first delivering an effective amount of a transgene encoding the polypeptide to the mammal's hepatic tissue and then administering an effective amount of the transgene to the mammal's central nervous system (CNS).

A hematopoietic stem cell (HSC), a hematopoietic progenitor cell (HPC) a myeloid/monocyte-committed progenitor cell, a macrophage or a monocyte comprising a vector wherein the vector comprises at least one mir-130a and/or mir-126 target sequence operably linked to a nucleotide sequence encoding interferon-alpha (IFN) for use in treating or preventing a cancer in a patient, wherein the HSC, the HPC, the myeloid/monocyte-committed progenitor cell, the macrophage or the monocyte is used in combination with an immune checkpoint inhibitor and/or a tumor associated antigen (TAA)-specific T-cell.

Compositions and methods are provided for treating ocular disorders in a subject are provided. In one aspect, an adeno-associated viral vector is provided which includes a nucleic acid molecule comprising a sequence encoding CNGA3. In another aspect, an adeno-associated viral vector is provided which includes a nucleic acid molecule comprising a sequence encoding CNGB3. In another aspect, an adeno-associated viral vector is provided which includes a nucleic acid molecule comprising a sequence encoding REP-1. In desired embodiments, the subject is human, cat, dog, sheep, or non-human primate.

The present invention provides a plant or plant part comprising a polynucleotide encoding a wildtype or mutant TriA polypeptide, the expression of said polynucleotide confers to the plant or plant part tolerance to herbicides.

Provided herein are methods for facilitating or inducing stable transgene integration and expression in a proliferating cell, comprising administering to the cell (i) a recombinant AAV (rAAV) vector comprising the transgene flanked by transposon-derived inverted terminal repeat sequences, which sequences are in turn flanked by AAV-derived inverted terminal repeat regions, and (ii) a source of a transposase that recognises said transposon-derived inverted terminal repeat sequences and directs the genomic integration of the transgene into the genome of the proliferating cell. Also provide are methods and transgene delivery systems for the treatment or prevention of diseases affecting, associated with or characterised by proliferating cells.

Provided herein are compositions and methods for selective expression of a transgene. Compositions and methods for selective expression of a transgene comprise one or more human regulatory elements, which, when operably linked to a transgene, can facilitate selective expression of a transgene (e.g., cell-type selective expression) in a target cell as compared to at least one or more non-target cells.

Provided is a system for regulating expression of a gene of interest in a target cell, including a recombinant first RNA molecule with (i) a coding sequence for a translation-suppressor protein and (ii) a first microRNA (miR) recognition element in its 3 UTR, wherein the first miR recognition element recognizes a first miR and binding of a first miR to the first miR recognition element reduces translation of the translation suppressor, and a recombinant second RNA molecule, with (i) a coding sequence for the gene of interest, (ii) a recognition sequence for the translation-suppressor, wherein binding of the translation-suppressor to the recognition sequence for the translation-suppressor reduces translation of the gene of interest, and, optionally, (iii) a second miR recognition element in its 3 UTR, wherein the second miR recognition element recognizes one or more second miR and binding of one or more of the one or more second miR to the second miR recognition element reduces translation of the gene of interest. Also provided are methods of using the system.