Adeno-associated virus vector-mediated triple gene transfer of dopamine synt hetic enzymes |
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Authors: | FAN Dongsheng SHEN Yang KANG Dexuan Imaharu Nakano Keiya Ozawa |
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Institution: | Department of Neurology, The Third Hospital, Peking University, Beijing 100083, China;Department of Neurology, The Third Hospital, Peking University, Beijing 100083, China;Department of Neurology, The Third Hospital, Peking University, Beijing 100083, China;Department of Neurology and Division of Genetic Therapeutics, Center for Molecul ar Medicine, Jichi Medical School, Tochigi 329-0498, Japan;Department of Neurology and Division of Genetic Therapeutics, Center for Molecul ar Medicine, Jichi Medical School, Tochigi 329-0498, Japan |
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Abstract: | OBJECTIVE: To explore triple gene transfer of dopamine synthetic enzymes with separate adeno-associated virus (AAV) vectors. METHODS: The genes for dopamine synthetic enzymes, tyrosine hydroxylase (TH), aromatic L-amino acid decarboxylase (AADC), and GTP cyclohydrolase I (GCH, an enzyme critical for tetrahydrobiopterin synthesis) were contransduced into 293 cells with separate AAV vectors. Expressions of TH, AADC and GCH were detected by Western blot analysis. Intracellular dopamine level was assayed by high-performance liquid chromatography. RESULTS: TH, AADC and GCH were effectively coexpressed in transduced cells with three separate AAV vectors, AAV-TH, AAV-AADC and AAV-GCH. Furthermore, the coexpression resulted in an effectively spontaneous dopamine production in cotransduced cells. CONCLUSION: The triple transduction of TH, AADC and GCH genes with separate AAV vectors is effective, which might be important to gene therapy for Parkinson's disease. |
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Keywords: | dopamine GTP cyclohydrolase Ⅰ adeno-associated virus |
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