Abstract: The present invention relates generally to methods for genetic modification of hematopoietic cells. In particular, the invention relates to use of Prostaglandin E2 (PGE2), poloxamer, and protamine sulfate to enhance transduction by a recombinant retroviral vector. The compositions and methods of the present disclosure are particularly suitable for gene therapy applications, including the treatment of monogenic genetic diseases and disorders.

Abstract: The present invention provides systems and methods for manufacturing and using gene corrected stem cells for gene therapy. In particular, herein provided are methods for treating Fanconi anemia in which a subject's stem cells are selected by a combination of high stringency CD34+ selection and low stringency CD34+ selection, genetically modified using a gene therapy vector encoding a FANC protein or a gene editing system, and administered to the subject.

Abstract: Provided herein is a gene therapy for BAG3 (B-cell Lymphoma 2-Associated Anthanogene 3), e.g., using an adeno-associated virus (AAV) vector. The promoter of the vector may be a MHCK7 promoter, a cardiac troponin T (hTNNT2) promoter, a heat shock protein 70 (HSP70) promoter, or a ubiquitin C (UBC) promoter. The capsid may be an AAVrh.74 or AAV9 capsid or a functional variant thereof. In certain embodiments, the capsid is an AAVrh.74 capsid or 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 AAV vector, and other compositions and methods.

Abstract: The present disclosure relates generally to compositions and methods for treating, preventing, inhibiting, or delaying central nervous system degeneration. The disclosure relates to a recombinant gene therapy vector comprising a PARK2, PINK1, DJ-1, LRRK2, SCNA, c-Rel, ATG7, VMAT2, or GBA gene, or functional fragment or variant thereof. The disclosure also relates to CRISPR/Cas-based gene editing systems for treating, preventing, inhibiting, or delaying central nervous system degeneration.

Abstract: 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.

Abstract: Parkin protein variants having activating mutations and/or fused to a mitochondrial targeting sequence are provided. The engineered Parkin may be a fusion protein including a mitochondrial targeting sequence (MTS); a transmembrane domain; and a Parkin protein or functional variant or fragment thereof, such as a Parkin having an N-terminal deletion. The MTS may be the MTS of PINK1 or a functional variant thereof. Alternatively or in addition, the engineered Parkin may have one or more activating mutations, such as single amino-acid substitutions. The engineered Parkin may be delivered in a vector, such as an adeno-associated virus (AAV) vector, and may be used to treat a disease or disorder, such as Parkinson’s disease or any of various neurodegenerative diseases.

Abstract: The present disclosure provides improved gene therapy vectors comprising a polynucleotide sequence encoding a TCIRG1 polypeptide or functional variant thereof, methods of use thereof, pharmaceutical compositions, and more. In particular, the disclosure provides lentiviral vectors for treatment of infantile malignant osteopetrosis (IMO).

Abstract: The present disclosure provides gene therapy vectors comprising a polynucleotide sequence encoding a LAMP-2 polypeptide, methods of use thereof, pharmaceutical compositions, and more. In particular, the disclosure provides recombinant AAV vectors having AAVrh74 serotype expressing LAMP-2A, LAMP-2B, or LAMP-2C for use as a therapeutic in, for example, Danon Disease.

Abstract: The disclosure relates to optimized polynucleotide sequences for LAMP-2B, expression cassettes, vectors, and methods of use thereof in treating disease, e.g. Danon disease.