University of California

Howard D Stang

Winston A Salser

Martin J Cline

Methods and compositions are provided for gene transfer to intact mammals with expression of the exogenous genetic material in the host. Mammalian host cells which are regenerative, normally highly proliferative or subject to induced proliferation, are transformed or modified in vitro with DNA capable of replication and expression in the host cell, wherein the DNA becomes incorporated into the cell. The modified cells are found to regenerate in the host with expression of the introduced DNA. Particularly, mammalian cells were modified with genes providing for overproduction of a particular enzyme. The modified cells were reintroduced in the host under conditions providing for selective advantage of the modified cells.

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Van Nuys, CA, United States of America

Howard D Stang