Readministration of adenoviral gene delivery to dopamine neurons
An approach currently being explored as treatment for Parkinson's disease is gene therapy. An important question concerns the duration of transgene expression in dopamine neurons and the issues of vector persistence, neuronal damage and the feasibility of readministering vector to the same neur...
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Published in | Neuroreport Vol. 18; no. 15; p. 1609 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
England
08.10.2007
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Abstract | An approach currently being explored as treatment for Parkinson's disease is gene therapy. An important question concerns the duration of transgene expression in dopamine neurons and the issues of vector persistence, neuronal damage and the feasibility of readministering vector to the same neuronal population. We show, using an adenoviral vector expressing the LacZ reporter gene, that transgene expression declined over time but with minimal loss of dopamine neurons or vector DNA. Readministration of vector resulted in low levels of transgene delivery to the neurons. Moreover, the neurons to which vector had already been delivered were unable to transport the retrograde tracer fluorogold. Our findings indicate that transgene expression declined in dopamine neurons despite the persistence of virus, and the capacity to readminister vector to these neurons was limited. |
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AbstractList | An approach currently being explored as treatment for Parkinson's disease is gene therapy. An important question concerns the duration of transgene expression in dopamine neurons and the issues of vector persistence, neuronal damage and the feasibility of readministering vector to the same neuronal population. We show, using an adenoviral vector expressing the LacZ reporter gene, that transgene expression declined over time but with minimal loss of dopamine neurons or vector DNA. Readministration of vector resulted in low levels of transgene delivery to the neurons. Moreover, the neurons to which vector had already been delivered were unable to transport the retrograde tracer fluorogold. Our findings indicate that transgene expression declined in dopamine neurons despite the persistence of virus, and the capacity to readminister vector to these neurons was limited. |
Author | Simpson, Christine Goodman, James Gonzalez, Sarah C McMenamin, Margaret M Charlton, Harry M Lantos, Tibor Wood, Matthew J A |
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SubjectTerms | Adenoviridae - genetics Animals DNA, Viral - biosynthesis DNA, Viral - genetics Dopamine - physiology Gene Transfer Techniques Genetic Vectors - administration & dosage Humans Immunohistochemistry Lac Operon - genetics Mice Mice, Inbred C3H Microinjections Neurons - physiology Reverse Transcriptase Polymerase Chain Reaction Stereotaxic Techniques Substantia Nigra - physiology Transgenes - physiology |
Title | Readministration of adenoviral gene delivery to dopamine neurons |
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