title: BioShuttle-mediated plasmid transfer.
abstract: An efficient gene transfer into target tissues and cells is needed for safe and effective treatment of genetic diseases like cancer. In this paper, we describe the development of a transport system and show its ability for transporting plasmids. This non-viral peptide-based BioShuttle-mediated transfer system consists of a nuclear localization address sequence realizing the delivery of the plasmid phNIS-IRES-EGFP coding for two independent reporter genes into nuclei of HeLa cells. The quantification of the transfer efficiency was achieved by measurements of the sodium iodide symporter activity. EGFP gene expression was measured with Confocal Laser Scanning Microscopy and quantified with biostatistical methods by analysis of the frequency of the amplitude distribution in the CLSM images. The results demonstrate that the "BioShuttle"-Technology is an appropriate tool for an effective transfer of genetic material carried by a plasmid.
authors.affiliation: Division of Molecular Toxicology, German Cancer Research Center, INF 280, D-69120 Heidelberg, Germany. k.braun@dkfz.de
authors.forename: Klaus
authors.initials: K
authors.lastname: Braun
authors.forename: Leonie
authors.initials: L
authors.lastname: von Brasch
authors.forename: Ruediger
authors.initials: R
authors.lastname: Pipkorn
authors.forename: Volker
authors.initials: V
authors.lastname: Ehemann
authors.forename: Juergen
authors.initials: J
authors.lastname: Jenne
authors.forename: Herbert
authors.initials: H
authors.lastname: Spring
authors.forename: Juergen
authors.initials: J
authors.lastname: Debus
authors.forename: Bernd
authors.initials: B
authors.lastname: Didinger
authors.forename: Werner
authors.initials: W
authors.lastname: Rittgen
authors.forename: Waldemar
authors.initials: W
authors.lastname: Waldeck
mesh_terms: D002467:Cell Nucleus / Q000378:metabolism*; D002470:Cell Survival; D018014:Gene Transfer Techniques; D017930:Genes, Reporter; D049452:Green Fluorescent Proteins / Q000235:genetics / Q000378:metabolism; D006367:HeLa Cells; D006801:Humans; D007454:Iodides / Q000378:metabolism; D007457:Iodine Radioisotopes; D018613:Microscopy, Confocal; D010957:Plasmids; D027981:Symporters / Q000235:genetics / Q000378:metabolism; D014158:Transcription, Genetic; D000099209:Sodium-Iodide Symporters
chemical_list: D049452:Green Fluorescent Proteins; D007454:Iodides; D007457:Iodine Radioisotopes; D027981:Symporters; D000099209:Sodium-Iodide Symporters