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An, Dong Sung; Xie, Yiming; Mao, Si Hua; Morizono, Kouki; Kung, Sam K P; Chen, Irvin S Y
Human gene therapy, 08/2003, Letnik: 14, Številka: 12Journal Article
RNA interference is an evolutionarily conserved process of gene silencing that in plants serves as a natural defense mechanism against exogenous viral agents. RNA interference is becoming an important tool for the study of biological processes through reverse genetics and has potential for therapeutic applications in humans; however, effective delivery is still a major issue. Small interfering RNA (siRNA) and short hairpin RNA (shRNA) have been introduced into cells by transfection of chemically synthesized and RNA expression via plasmid cassettes utilizing RNA polymerase III transcription. The employment of siRNA/shRNA for gene knockout requires an efficient stable transfection or transduction process. Here, we report the successful construction of lentiviral vectors to express shRNA stably in human cells. We demonstrate that lentiviral vectors expressing siRNA directed to the reporter gene luciferase, when stably transduced into human cells without drug selection, are capable of protecting the cells from infection by a lentiviral vector encoding humanized firefly luciferase as a reporter gene. We observed 16- to 43-fold reduction of gene expression in infected cells transduced with shRNA vectors relative to cells transduced with control vectors. This model system demonstrates the utility of lentiviral vectors to stably express shRNA as both a cellular gene knockout tool and as a means to inhibit exogenous infectious agents such as viruses in human cells.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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