Gene Therapy for Neurologic Disease

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Abstract
Gene therapy is a potentially potent new method of treating a number of neurologic disorders previously considered refractory to current conventional therapeutic treatments. Numerous advances have been made in the construction of expression vectors, cellular and viral transgene carriers, and the characterization of target cells for neuronal gene therapy. Two primary approaches to nervous system gene transfer have emerged as a result of these advances. The in vivo approach concentrates on direct transfer of genetic material to cells in vivo using viral and chemical agents. The ex vivo approach relies on genetic transfer to cultured cells that are subsequently implanted into a host organism. Both of these methods have been used in preliminary experiments designed to test the efficacy of gene transfer strategies in the amelioration of nervous system dysfunction.