This disclosure provides methods and compositions for treating disorders or injuries that affect motor function and control in a subject. In one aspect, the invention a transgene product is delivered to a subject's spinal cord by administering a recombinant viral vector containing the transgene to the spinal cord. The viral vector delivers the transgene which expresses the encoded recombinant viral gene product. The viral gene product comprises HIF1-alpha. Also provided are compositions for delivery of a transgene product to a subject's spinal cord.

Disclosed are tyrosine-modified rAAV vectors, as well as infectious virions, compositions, and pharmaceutical formulations that comprise them. Also disclosed are methods of preparing and methods for using the disclosed tyrosine-phosphorylated capsid protein mutant rAAV vectors in a variety of diagnostic and therapeutic applications including in vivo and ex vivo gene therapy, and large-scale production of rAAV vectors.

A method of altering the targeting and/or cellular uptake efficiency of an adeno-associated virus (AAV) viral vector having a capsid containing an AAV9 cell surface binding domain is described. The method involves modifying a clade F cell surface receptor which comprises a glycan having a terminal sialic acid residue and a penultimate -galactose residue. The modification may involve retargeting the vector by temporarily functionally ablate AAV9 binding in a subset of cells, thereby redirecting the vector to another subset of cells. Alternatively, the modification may involve increasing cellular update efficiency by treating the cells with a neuraminidase to expose cell surface -galactose. Also provided are compositions containing the AAV9 vector and a neuraminidase. Also provided is a method for purifying AAV9 using -galactose linked to solid support. Also provided are mutant vectors which have been modified to alter their targeting specificity, including mutant AAV9 in which the galactose binding domain is mutated and AAV in which an AAV9 galactose binding domain is engineered.

The disclosure in some aspects relates to recombinant adeno-associated viruses having distinct tissue targeting capabilities. In some aspects, the disclosure relates to gene transfer methods using the recombinant adeno-associated viruses. In some aspects, the disclosure relates to isolated AAV capsid proteins and isolated nucleic acids encoding the same.

Compositions and methods for producing modified AAV Cap genes and combinatorial libraries of chimeric AAV vectors and virions in an AAV serotype 3 background. Selecting for modified AAV3 virions displaying cell- or tissue-specific tropisms differing from WT AAV3. Using the synthetic combinatorial AAV3 capsid libraries for introducing into a selected target host cells one or more nucleic acid molecules useful in diagnostic and/or therapeutic gene-therapy regimens.

Novel adeno-associated virus (AAV) vectors in nucleotide and amino acid forms and uses thereof are provided. The isolates show specific tropism for certain target tissues, such as blood stem cells, liver, heart and joint tissue, and may be used to transduce stem cells for introduction of genes of interest into the target tissues. Certain of the vectors are able to cross tightly controlled biological junctions, such as the blood-brain barrier, which open up additional novel uses and target organs for the vectors, providing for additional methods of gene therapy and drug delivery.

Novel adeno-associated virus (AAV) vectors in nucleotide and amino acid forms and uses thereof are provided. The isolates show specific tropism for certain target tissues, such as blood stem cells, liver, heart and joint tissue, and may be used to transduce stem cells for introduction of genes of interest into the target tissues. Certain of the vectors are able to cross tightly controlled biological junctions, such as the blood-brain barrier, which open up additional novel uses and target organs for the vectors, providing for additional methods of gene therapy and drug delivery.

Novel adeno-associated virus (AAV) vectors in nucleotide and amino acid forms and uses thereof are provided. The isolates show specific tropism for certain target tissues, such as blood stem cells, liver, heart and joint tissue, and may be used to transduce stem cells for introduction of genes of interest into the target tissues. Certain of the vectors are able to cross tightly controlled biological junctions, such as the blood-brain barrier, which open up additional novel uses and target organs for the vectors, providing for additional methods of gene therapy and drug delivery.

Novel adeno-associated virus (AAV) vectors in nucleotide and amino acid forms and uses thereof are provided. The isolates show specific tropism for certain target tissues, such as blood stem cells, liver, heart and joint tissue, and may be used to transduce stem cells for introduction of genes of interest into the target tissues. Certain of the vectors are able to cross tightly controlled biological junctions, such as the blood-brain barrier, which open up additional novel uses and target organs for the vectors, providing for additional methods of gene therapy and drug delivery.

Novel adeno-associated virus (AAV) vectors in nucleotide and amino acid forms and uses thereof are provided. The isolates show specific tropism for certain target tissues, such as blood stem cells, liver, heart and joint tissue, and may be used to transduce stem cells for introduction of genes of interest into the target tissues. Certain of the vectors are able to cross tightly controlled biological junctions, such as the blood-brain barrier, which open up additional novel uses and target organs for the vectors, providing for additional methods of gene therapy and drug delivery.