title: Proteins involved in cell migration from glioblastoma neurospheres analyzed by overexpression and siRNA-mediated knock-down.
abstract: Glioblastoma multiforme (GBM) are the most common malignant brain tumours in adults, characterized by short survival periods of patients. Their aggressive local growth pattern and increased invasiveness, due to a high motility of the tumour cells, hamper treatment. However, the molecular mechanisms regulating glioblastoma cell migration are still elusive. Here, we describe the combination of a highly efficient cell transfection by nucleofection technology and the generation of spheroids from these transfected glioblastoma cell lines. Nucleofection allows the manipulation of protein expression by overexpression and siRNA-mediated protein knock-down. Transfection efficiencies >80% can be achieved with some GBM cell lines. Transfected neurospheres then can be used for migration assays (as described here in detail) and a multitude of other functional assays. In comparison to monolayer cultures, the advantage of spheroids is their resemblance to organized tissue in combination with the accuracy of in vitro methodology and marked experimental flexibility.
authors.affiliation: Tumorbiology Laboratory, Department of Neurosurgery, University of Würzburg, Würzburg, Germany.
authors.forename: Carsten
authors.initials: C
authors.lastname: Hagemann
authors.forename: Harun M
authors.initials: HM
authors.lastname: Said
authors.forename: Michael
authors.initials: M
authors.lastname: Flentje
authors.forename: Klaus
authors.initials: K
authors.lastname: Roosen
authors.forename: Giles Hamilton
authors.initials: GH
authors.lastname: Vince
mesh_terms: D000328:Adult; D000818:Animals; D015153:Blotting, Western; D045744:Cell Line, Tumor; D002465:Cell Movement / Q000235:genetics / Q000502:physiology*; D004591:Electrophoresis, Polyacrylamide Gel; D005260:Female; D015972:Gene Expression Regulation, Neoplastic / Q000235:genetics / Q000502:physiology; D005909:Glioblastoma / Q000235:genetics / Q000378:metabolism* / Q000473:pathology*; D006801:Humans; D008297:Male; D051379:Mice; D008819:Mice, Nude; D008875:Middle Aged; D011506:Proteins / Q000235:genetics / Q000378:metabolism*; D034741:RNA, Small Interfering / Q000235:genetics / Q000502:physiology*
chemical_list: D011506:Proteins; D034741:RNA, Small Interfering