title: [Effect of Bcl-2 antisense phosphorothioate oligodeoxynucleotides on bile duct carcinoma cell line QBC939].
abstract: OBJECTIVE
  To investigate the effect of Bcl-2 antisense oligodeoxynucleotides (ASODN) on the cell proliferation and Bcl-2 expression in bile duct carcinoma cell line QBC939.
  
  
  METHODS
  Bcl-2 ASODN and control sequence were transfected into cell line QBC939 by Lipofectamine 2000. The changes of Bcl-2 protein were detected by Western blot. The survival rate and colony formation rate of QBC939 cells incubating with Bcl-2 ASODN were evaluated by trypan blue staining assay and colony forming test.
  
  
  RESULTS
  The densitometric analysis of Gel-photograph showed that the level of Bcl-2 protein expression in the ASODN transfected group was significantly lower than that in the controls (P < 0.01). Both trypan blue staining assay and colony forming test demonstrated that Bcl-2 ASODN could partially inhibit the growth of QBC939 cells. After incubating with Bcl-2 ASODN, the survival rate and colony formation rate of QBC939 cells were significantly lower than those of the controls (P < 0.05).
  
  
  CONCLUSIONS
  Bcl-2 ASODN inhibits the cell proliferation in bile duct carcinoma cell line QBC939 by blocking the expression of bcl-2 gene.
authors.affiliation: Department of General Surgery, Xiangya Hospital, Central South University Changsha, China. tanghuihuan@hotmail.com
authors.forename: Chuang
authors.initials: C
authors.lastname: Peng
authors.forename: Hui-huan
authors.initials: HH
authors.lastname: Tang
authors.forename: Ping
authors.initials: P
authors.lastname: Huang
authors.forename: Ming-xiong
authors.initials: MX
authors.lastname: Chen
mesh_terms: D001650:Bile Duct Neoplasms / Q000378:metabolism / Q000473:pathology*; D002455:Cell Division / Q000187:drug effects; D006801:Humans; D008055:Lipids / Q000494:pharmacology; D016376:Oligonucleotides, Antisense / Q000494:pharmacology*; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000096:biosynthesis* / Q000235:genetics; D014162:Transfection; D014407:Tumor Cells, Cultured; D014410:Tumor Stem Cell Assay
chemical_list: D008055:Lipids; C086724:Lipofectamine; D016376:Oligonucleotides, Antisense; D019253:Proto-Oncogene Proteins c-bcl-2