title: Purkinje-cell-preferential transduction by lentiviral vectors with the murine stem cell virus promoter.
abstract: Viral-vector-mediated gene delivery into Purkinje cells is a promising method for exploring the pathophysiology of the cerebellum; however, it is generally difficult to achieve sufficiently high levels of gene expression in Purkinje cells using viral vectors with a cell-type-specific promoter because of the weakness of transcriptional activity. In this study, we prepared lentiviral vectors that express GFP under the control of various ubiquitous promoters derived from murine stem cell virus (MSCV), cytomegalovirus (CMV), CMV early enhancer/chicken beta actin (CAG), and Rous sarcoma virus (RSV) and compared their potential to transduce Purkinje cells. Mice were sacrificed 7 days after lentiviral injection and the ratios of GFP(+) Purkinje cells to all transduced cells were determined. The highest transduction ratio was observed when we used lentivectors containing the MSCV promoter: approximately 70% of GFP(+) cells were Purkinje cells, the next highest ratio was for the CMV promoter (approximately 40%), then the CAG promoter (approximately 35%), and the lowest ratio was for the RSV promoter (approximately 10%). Moreover, the highest levels of GFP expression were also caused by the MSCV promoter. Thus, among the ubiquitous promoters examined, the MSCV promoter was the best for the expression of a foreign gene in Purkinje cells in vivo.
authors.affiliation: Department of Neurophysiology, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan.
authors.forename: Kiyohiko
authors.initials: K
authors.lastname: Takayama
authors.forename: Takashi
authors.initials: T
authors.lastname: Torashima
authors.forename: Hajime
authors.initials: H
authors.lastname: Horiuchi
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Hirai
mesh_terms: D000818:Animals; D002461:Cell Line, Transformed; D002531:Cerebellum / Q000166:cytology; D015870:Gene Expression; D005822:Genetic Vectors / Q000502:physiology; D049452:Green Fluorescent Proteins / Q000235:genetics / Q000378:metabolism; D006801:Humans; D016086:Lentivirus / Q000235:genetics*; D051379:Mice; D008810:Mice, Inbred C57BL; D011401:Promoter Regions, Genetic / Q000235:genetics*; D011689:Purkinje Cells / Q000378:metabolism* / Q000821:virology; D012333:RNA, Messenger / Q000378:metabolism; D013234:Stem Cells; D014161:Transduction, Genetic; D014764:Viral Proteins / Q000235:genetics / Q000378:metabolism
chemical_list: D012333:RNA, Messenger; D014764:Viral Proteins; D049452:Green Fluorescent Proteins