title: Episomal transgene expression in pluripotent stem cells.
abstract: Herpes simplex type 1 (HSV-1) amplicon vectors possess a number of features that make them excellent vectors for the delivery of transgenes into stem cells. HSV-1 amplicon vectors are capable of efficiently transducing both dividing and nondividing cells and since the virus is quite large, 152 kb, it is of sufficient size to allow for incorporation of entire genomic DNA loci with native promoters. HSV-1 amplicon vectors can also be used to incorporate and deliver to cells a variety of sequences that allow extrachromosomal retention. These elements offer advantages over integrating vectors as they avoid transgene silencing and insertional mutagenesis. The construction of amplicon vectors carrying extrachromosomal retention elements, their packaging into HSV-1 viral particles, and the use of HSV-1 amplicons for stem cell transduction will be described.
authors.affiliation: Molecular Neurodegeneration and Gene Therapy Research Group, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK.
authors.forename: Michele M P
authors.initials: MM
authors.lastname: Lufino
authors.forename: Anna R
authors.initials: AR
authors.lastname: Popplestone
authors.forename: Sally A
authors.initials: SA
authors.lastname: Cowley
authors.forename: Pauline A H
authors.initials: PA
authors.lastname: Edser
authors.forename: William S
authors.initials: WS
authors.lastname: James
authors.forename: Richard
authors.initials: R
authors.lastname: Wade-Martins
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002460:Cell Line; D002499:Centrifugation, Density Gradient; D002999:Clone Cells; D004247:DNA; D059290:Dopaminergic Neurons / Q000166:cytology / Q000378:metabolism; D053595:Embryonic Stem Cells / Q000166:cytology / Q000378:metabolism / Q000821:virology; D005374:Filtration; D015870:Gene Expression; D018014:Gene Transfer Techniques; D005822:Genetic Vectors / Q000235:genetics; D018259:Herpesvirus 1, Human / Q000502:physiology; D006801:Humans; D051379:Mice; D010957:Plasmids / Q000235:genetics*; D039904:Pluripotent Stem Cells / Q000166:cytology / Q000378:metabolism* / Q000821:virology; D017186:Titrimetry; D019076:Transgenes / Q000235:genetics*; D014771:Virion / Q000378:metabolism; D019065:Virus Assembly
chemical_list: D004247:DNA