Expression of growth associated protein B-50/GAP-43 in vitro and

Details Expression of growth associated protein B-50/GAP-43 in vitro and Expression of growth associated protein B-50/GAP-43 in vitro and

1996-08-02

2000-08-22

Railey, II, Johnny F.

Drug, bio-affecting and body treating compositions

Whole live micro-organism, cell, or virus containing

Genetically modified micro-organism, cell, or virus

4351723, 4353201, 514 44, A61K 4800, C12N 1512, C12N 1586

Patent

active

061068241

ABSTRACT:
The present invention relates to a viral vector capable of the transfer and in vivo expression of growth-associated protein (B-50/GAP-43) in neuronal target cells of a mammalian host. The viral vector contains a recombinant DNA molecule comprising a B-50/GAP-43 gene operably associated with a promoter, which promoter controls short term, high level expression of the B-50/GAP-43 gene. Preferably, the viral vector is a defective viral vector, in particular a defective herpes virus or an adeno-associated virus. In a specific embodiment, defective herpesvirus, adenovirus, and adeno-associated virus viral vectors containing the rat B-50/GAP-43 gene under control of the human cytomegalovirus immediate early promoter have been prepared. The invention further provides a method for treating nerve damage in a subject. The method comprises introducing a vector comprising a B-50/GAP-43 gene operably associated with a promoter into a damaged nerve tissue of a subject. Preferably, the promoter controls short term, high level expression of the B-50/GAP-43 gene, such that the B-50/GAP-43 gene is expressed in the tissue of the subject. Preferably, the vector used in the therapeutic methods of the invention is a viral vector. The vectors of the invention, capable of expression a B-50/GAP-43 gene, can also be used in vitro to enhance the survival of cultured cells, in particular, cultured neurons for transplantation.

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