title: Conditional gene expression and knockdown using lentivirus vectors encoding shRNA.
abstract: Drug-inducible systems allowing the control of transgene expression and knockdown in mammalian cells are invaluable tools for genetic research, and could also play important roles in translational research or gene therapy. We and others have developed a lentivector-based, conditional gene expression system for drug-controllable expression of transgenes and small hairpin RNAs (shRNAs). This system is highly robust and versatile, governing tightly controlled expression of transgenes and endogenous cellular genes (through shRNAs) in various primary and established cell lines in vitro, as well as in vivo in the central nervous system or in human cancer cells xenotransplanted into nude mice. The goal of this article is to provide a concise methodology for construction and manipulation of this conditional lentiviral-based system, and quantitative analyses of drug-inducible transgene expression and gene knockdown both in vitro and in vivo.
authors.affiliation: Neurosciences Institute, Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland.
authors.forename: Jolanta
authors.initials: J
authors.lastname: Szulc
authors.forename: Patrick
authors.initials: P
authors.lastname: Aebischer
mesh_terms: D000818:Animals; D001943:Breast Neoplasms / Q000235:genetics / Q000628:therapy*; D004318:Doxycycline / Q000494:pharmacology; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D020868:Gene Silencing; D018390:Gene Targeting / Q000379:methods*; D005822:Genetic Vectors / Q000235:genetics*; D049452:Green Fluorescent Proteins / Q000235:genetics / Q000378:metabolism; D006801:Humans; D016086:Lentivirus / Q000235:genetics*; D051379:Mice; D008819:Mice, Nude; D034741:RNA, Small Interfering / Q000235:genetics*; D014162:Transfection; D019076:Transgenes / Q000502:physiology; D016159:Tumor Suppressor Protein p53 / Q000037:antagonists & inhibitors / Q000235:genetics / Q000378:metabolism; D023041:Xenograft Model Antitumor Assays
chemical_list: D034741:RNA, Small Interfering; C495901:TP53 protein, human; D016159:Tumor Suppressor Protein p53; D049452:Green Fluorescent Proteins; D004318:Doxycycline