title: Small interfering RNA (siRNA) targetted to Smad3 inhibits transforming growth factor-beta signaling.
abstract: RNA interference has become a powerful tool for silencing of gene expression in mammals and plants. To determine the effect of Smad3 on transforming growth factor-beta signaling, we constructed a small interfering RNA (siRNA) targeted to Smad3. This siRNA inhibited expression of the endogenous Smad3 leading to the prevention of nuclear localization of Smad3. Further, Smad3 siRNA prevented not only anti-proliferative activity of TGF-beta1 but also TGF-beta1-inducible promoter activity.
authors.affiliation: Department of Microbiology, College of Natural Sciences, Kangwon National University, Chunchon 200-701, Republic of Korea.
authors.forename: Seon-yong
authors.initials: SY
authors.lastname: Yeom
authors.forename: Dooil
authors.initials: D
authors.lastname: Jeoung
authors.forename: Kwon-Soo
authors.initials: KS
authors.lastname: Ha
authors.forename: Pyeung-Hyeun
authors.initials: PH
authors.lastname: Kim
mesh_terms: D000818:Animals; D045744:Cell Line, Tumor; D002467:Cell Nucleus / Q000378:metabolism; D049109:Cell Proliferation; D003593:Cytoplasm / Q000378:metabolism; D004268:DNA-Binding Proteins / Q000378:metabolism*; D008156:Luciferases / Q000378:metabolism; D051379:Mice; D008856:Microscopy, Fluorescence; D010957:Plasmids / Q000378:metabolism; D011401:Promoter Regions, Genetic; D034741:RNA, Small Interfering / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D015398:Signal Transduction; D051900:Smad3 Protein; D013936:Thymidine / Q000494:pharmacology; D015534:Trans-Activators / Q000378:metabolism*; D014162:Transfection; D016212:Transforming Growth Factor beta / Q000378:metabolism*
chemical_list: D004268:DNA-Binding Proteins; D034741:RNA, Small Interfering; D051900:Smad3 Protein; C497791:Smad3 protein, mouse; D015534:Trans-Activators; D016212:Transforming Growth Factor beta; D008156:Luciferases; D013936:Thymidine