Abstract：
:In order to investigate protein function in rat primary cortical neuronal cultures, we modified an adenoviral vector expression system and assessed the strength and specificity of the cytomegalovirus (CMV), rous sarcoma virus (RSV), and rat and human synapsin 1 (SYN1) promoters to drive DsRed-X expression. We also incorporated the woodchuck post-transcriptional regulatory element (WPRE) and a CMV promoter-enhanced green fluorescent protein (EGFP) reporter cassette. We observed that the RSV promoter activity was strong in neurons and moderate in astrocytes, while the CMV promoter activity was weak-to-moderate in neurons and very strong in astrocytes. The rat and human SYN1 promoters exhibited similar but weak activity in neurons, despite inclusion of the WPRE. We confirmed that the WPRE enhanced RSV promoter-mediated DsRed-X expression in a time-dependent fashion. Interestingly, we observed very weak SYN1-mediated DsRed-X expression in astrocytes and HEK293 cells suggesting incomplete neuronal-restrictive behavior for this promoter. Finally, using our adenoviral expression system, we demonstrated that RSV promoter-mediated Bcl-X(L) overexpression attenuated neuronal death caused by in vitro ischemia and oxidative stress.
journal_name
Brain Resjournal_title
Brain researchauthors
Boulos S,Meloni BP,Arthur PG,Bojarski C,Knuckey NWdoi
10.1016/j.brainres.2006.04.089subject
Has Abstractpub_date
2006-08-02 00:00:00pages
27-38issue
1eissn
0006-8993issn
1872-6240pii
S0006-8993(06)01164-4journal_volume
1102pub_type
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