title: Cell cycle independent infection and gene transfer by recombinant Sendai viruses.
abstract: A common problem for viral vectors in the field of somatic gene therapy is the dependence of an efficient cellular transduction on the cell cycle phase of target cells. An optimized viral vector system should therefore transduce cells in different cell cycle phases equally to improve transduction efficiencies. Recent observations that recombinant Sendai viruses (SeV) can infect a broad range of different tissues suggested SeV to be a good candidate for future gene therapeutic strategies in which dividing and non-dividing cells have to be reached. However, detailed data on the influence of distinct cell cycle phases on the infection of SeV or related viruses are missing. We report that synchronization of NIH 3T3 cells as well as contact inhibition of human fibroblast cells did not exhibit any negative influence on SeV infection rates. Furthermore, different attractive target tissues like human umbilical cord derived cells or primary human hepatocytes can be reached by SeV efficiently. As an important information for further cell cycle studies of paramyxoviruses we discovered surprisingly that the DNA polymerase inhibitor aphidicolin (induces a G(1)/M arrest) functions as an inhibitor of SeV but not of an adenoviral expression vector. In conclusion, the results demonstrate SeV based vector particles to be an ideal tool to reach equally cells coexisting in different cell cycle phases.
authors.affiliation: Internal Medicine I, University Clinic Tübingen, D-72076, Tübingen, Germany.
authors.forename: Sorin
authors.initials: S
authors.lastname: Armeanu
authors.forename: Guy
authors.initials: G
authors.lastname: Ungerechts
authors.forename: Christian
authors.initials: C
authors.lastname: Bernloehr
authors.forename: Sascha
authors.initials: S
authors.lastname: Bossow
authors.forename: Michael
authors.initials: M
authors.lastname: Gregor
authors.forename: Wolfgang J
authors.initials: WJ
authors.lastname: Neubert
authors.forename: Ulrich M
authors.initials: UM
authors.lastname: Lauer
authors.forename: Michael
authors.initials: M
authors.lastname: Bitzer
mesh_terms: D016475:3T3 Cells; D000818:Animals; D016590:Aphidicolin / Q000494:pharmacology; D002453:Cell Cycle / Q000187:drug effects; D002478:Cells, Cultured; D018014:Gene Transfer Techniques; D015316:Genetic Therapy; D005822:Genetic Vectors; D049452:Green Fluorescent Proteins; D006801:Humans; D008164:Luminescent Proteins / Q000235:genetics; D051379:Mice; D011994:Recombinant Proteins / Q000235:genetics; D011995:Recombination, Genetic; D029082:Sendai virus / Q000235:genetics*; D014773:Virology / Q000379:methods
chemical_list: D008164:Luminescent Proteins; D011994:Recombinant Proteins; D049452:Green Fluorescent Proteins; D016590:Aphidicolin