title: [Construction of eukaryotic expression vector of short hairpin RNA for transforming growth factor-beta1].
abstract: OBJECTIVE
  To construct the plasmid containing short hairpin RNA (shRNA) of TGF-beta1 expression vector.
  
  
  METHODS
  Short chain oligonucleotide was designed according to the TGF-beta1 mRNA sequence provided by Genebank, then DNA segment was gained through annealing after chemosynthesis, and then was cloned to pWH1 vector. The recombinant TGF-beta1 shRNA expression vector was evaluated by using enzyme cutting. At last, the constructed TGF-beta1 expression vector was transfected into salivary gland mucoepidermoid carcinoma (Ms) cells by Lipofectomine TM 2000, and its effect on TGF-beta1 expression was observed by RT-PCR and immunohistochemistry.
  
  
  RESULTS
  Successful construction was identified by enzyme cutting and the constructed plasmid was called pWH1-TGF-beta1. The shRNA and it inhibited the TGF-beta1 mRNA and protein expression effectively.
  
  
  CONCLUSIONS
  The constructed TGF-beta1 shRNA expression vector can block the TGF-beta1 expression in salivary gland mucoepidermoid carcinoma cells.
authors.affiliation: Dept. of Biology, College of Stomatology, The Fourth Military Medical University, Xi'an 710032, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Jun-Zheng
authors.initials: JZ
authors.lastname: Wu
authors.forename: Fu-Ping
authors.initials: FP
authors.lastname: Guo
authors.forename: Xiu-Li
authors.initials: XL
authors.lastname: Zhu
authors.forename: De-Sheng
authors.initials: DS
authors.lastname: Wen
mesh_terms: D005822:Genetic Vectors; D006801:Humans; D007150:Immunohistochemistry; D010957:Plasmids; D012333:RNA, Messenger; D034741:RNA, Small Interfering; D014162:Transfection; D053773:Transforming Growth Factor beta1
chemical_list: D012333:RNA, Messenger; D034741:RNA, Small Interfering; D053773:Transforming Growth Factor beta1