Abstract:
:To explore the feasibility of cell type-specific gene expression in oligodendrocytes as a possible therapeutic approach for demyelinating diseases, the cell specificity, tissue specificity, and duration of gene expression were investigated using recombinant adeno-associated viral vectors (rAAV) carrying a green fluorescence protein (GFP) gene. Recombinant AAV vectors carrying either the myelin basic protein (MBP) promoter (rAAV-MBP-GFP) or the cytomegalovirus (CMV) immediate early promoter (rAAV-CMV-GFP) were semistereotactically injected into the brain of C57BL/6J mice. Injection of the rAAV-MBP-GFP vector into or near the corpus callosum resulted in high levels of GFP expression in white matter regions. Double immunostaining with cell- specific markers proved that these GFP-expressing cells were oligodendrocytes. Injection of the rAAV- MBP-GFP vector into gray matter rarely produced GFP expression. In contrast, injection of the rAAV-CMV-GFP vector resulted in few GFP-expressing cells in the white matter, with most of the GFP-expressing cells being neurons located in the cerebral cortex along the needle track. The expression of the GFP driven by the MBP promoter persisted for at least 3 months.
journal_name
J Neurosci Resjournal_title
Journal of neuroscience researchauthors
Chen H,McCarty DM,Bruce AT,Suzuki Kdoi
10.1002/(SICI)1097-4547(19990215)55:4<504::AID-JNRkeywords:
subject
Has Abstractpub_date
1999-02-15 00:00:00pages
504-13issue
4eissn
0360-4012issn
1097-4547pii
10.1002/(SICI)1097-4547(19990215)55:4<504::AID-JNRjournal_volume
55pub_type
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